Rapid tests for EHEC in food

A common key feature of highly pathogenic serovars of EHEC (Enterohaemorrhagic E. coli), such as those involved in the recent European outbreak, is the build up of toxins, which can be used to detect this group.

Verotoxins, also called Shiga-like toxins, are divided into verotoxin 1 and verotoxin 2. Merck Millipore’s Duopath® Verotoxin is promoted as a simple quick lateral flow test which can be used to detect VT1 and/or VT2. The serogroup O157 (including H7) and other serovars, such as O26, O103, O111, O145 and O14, can thus be detected indirectly by detecting verotoxins.

The product range also includes Singlepath® E.coli O157, which detects the most well-known and common serogroup of pathogenic E.coli, O157.

Both kits have one step design which reduces errors and, following an overnight enrichment process, deliver a positive or negative result 20 minutes from inoculation of the test.

Merck Millipore
Tel: 1800 335 571
Web: www.merck-chemicals.com.au


World-class ‘clean room’

Industrial packaging specialists SCHÜTZ DSL has unveiled new ‘clean room’ processing facilities at its Laverton North manufacturing base in Melbourne to specifically cater for intermediate bulk containers (IBC) heading for the food market.

The latest temperature controlled and hygienically sealed ‘clean room’ has been installed as part of the new ‘six layer’ IBC manufacturing capability at a cost of around $250 000.

According to Steve Johnston, Managing Director of SCHÜTZ DSL Group Pty Ltd, the clean room provides “the perfect accompaniment to the new multi-layer blow moulder machine, which has attracted keen interest from the food market”, due to the application of a six layer high density polyethylene inner bottle in the packaging of liquid food products.

“The clean room facilities are a natural progression for us in meeting the needs of Australian food companies. Our ability to maintain the highest possible hygiene and food safety standards is imperative, and our investment in these new quality systems ensures that the Australian food market has access to world-class products within stringent food handling regulations,” he said.

SCHÜTZ DSL’s ‘clean room’ is temperature controlled at 22°C and the filtered atmosphere is constantly maintained at an international level labelled EU8. The area is located alongside the company’s fully automated blow moulding machine which co-extrudes plastic in the manufacture of IBC.

“The clean rooms have been constructed to house all areas of the production process when the IBC inner tanks valves or screw caps are not fully closed. This ensures that these inner tanks, which will essentially contain the food products, remain entirely clean during these important quality controlled processes. The positive air pressure within the sealed ‘clean room’ area pushes air into the surrounding factory through a specially designed ventilation system, thus eliminating any possibility of dust formation within the inner bottle production process,” he explained.

The company has also introduced further hygiene measures with its staff to ensure that all personnel who enter the area wear protective clothing such as hair nets, covered foot wear and coats to further prevent contamination.
The only facility of its kind in Australia and also South East Asia, it has also opened up new export opportunities for the company.

The new SCHUTZ ECO BULK – MX – EX EVOH 6 LAYER – IBC is currently the only multi-layer IBC manufactured in Australia. The IBC contains extra protective layers within the HDPE which acts as a barrier to oxygen permeation, odour release and simultaneously extends the product shelf life of some food products.

SCHÜTZ DSL (Group) Pty Ltd
Tel: (08) 9336 2688
Web: www.shuetz.net


Diagnostic tools for foodborne pathogens

bioMérieux, Gold Sponsor for the Securing Global Food Safety Conference (pp 388–391), has utilised recombinant bacteriophage (phage) proteins to advance the rapid detection of Salmonella. Bacteriophages are highly specific viruses programmed exclusively to identify and infect host bacteria. They are able to survive in the most extreme environments including soil, animal waste and intestinal tracts, as well as the most complex food matrices.

VIDAS® UP Salmonella (SPT) is claimed to offer best-in-class specificity and sensitivity for the targeted capture and detection of the pathogen in food and environmental samples (www.biomerieux-industry.com/vidasup).

Salmonella is a bacterium that causes one of the most common intestinal infections worldwide. In the United States alone it is implicated in more than one million cases of foodborne illness annually, according to a 2011 report from the Centers for Disease Control and Prevention. Of these cases, approximately 20 000 result in hospitalisation and 378 result in death.

The new VIDAS SPT assay is able to detect low levels of contamination by Salmonella and provides a simple, one-step sample preparation which reduces laboratory hands-on time, and delivers results in as little as 19 hours as compared to reference methods which require up to three days.

Listeria monocytogenes testing
bioMérieux has also focused on producing a new chromogenic medium for the rapid enumeration, detection and presumptive identification of Listeria monocytogenes in food products and production environment samples. Both protocols are certified according to EN ISO 16140.

On ChromID™ Lmono, Listeria monocytogenes gives turquoise blue colonies with no associated halo, which makes it easy to read highly contaminated samples. Results are obtained in one day after enrichment for both negative and confirmed positive samples (compared to the four-day ISO method), reducing product release time and bringing cost effectiveness and flexibility to low counts.

Only one plate is necessary for the pour plate enumeration when using chromID Lmono medium in bottles. Surface enumeration is performed with one plate less than all the existing methods used for enumeration of low numbers (< 10 cfu/g).

Testing of non–0157 STEC
The Pall GeneDisc Rapid Microbiology system now enables producers to test simultaneously for the pathogenic E. coli O157 and four of the top six non-O157 Shiga toxin-producing E. coli (STEC) (O26, O103, O111, O145), providing the meat industry with a new tool to help ensure the safety of its products.

The Pall GeneDisc system is based on real-time Polymerase Chain Reaction (PCR) technology. The system features a robust PCR platform utilising ready-to-use consumables. The system and test procedure are claimed to yield consistently repeatable results and virtually eliminate operator error. It provides data on the presence or absence of multiple pathogens in as little as three hours (as opposed to days for traditional methods). It is positioned as an ideal solution for food manufacturers who need fast and specific detection of potential health risks with the least amount of false positives.

This system was validated by the AOAC Research Institute for detection of non-O157 STEC in meat earlier this year. This product is the first to receive AOAC’s multi-parametric validation of a detection method for four serogroups of the most common non-O157 STEC in ground beef and beef trim. This validation is expected to enable more effective monitoring of pathogenic E. coli contamination.


At-line measurement of collagen in meat

An extended range version of the InfraLab e-Series Multi-component At-Line Meat Analyser from NDC Infrared Engineering (www.ndcinfrared.com) has been developed to include the measurement of collagen, as well as fat, moisture and protein. The extended range InfraLab provides a good indication of collagen levels over a 1–8% concentration range.

Measuring the amount of collagen or collagenous material present in meat can
be important in meeting quality and legislative requirements. Collagen has traditionally been measured in meat samples using slower laboratory methods.
 
The InfraLab uses non-contacting multi-wavelength NIR technology for measurements of fat, moisture and protein. The new collagen measurement capability features a robust algorithm which quantifies the spectrum shifts in the NIR spectrum associated with changes in collagen content. Measurements can be made in just 10 seconds, and the analyser can be located next to the production line for fast turn-around of results, eliminating the delays associated with laboratory analysis. See also Food Aust. 62(6): 242, June 2010).

The agent for NDC Infrared Engineering in Australia is NSW-based B-R Control Pty Ltd (www.brcontrols.com.au).


Fully automated protein analysis

Rowe Scientific Pty Ltd (www.rowe.com.au) has brought the NDA 701 Dumas Nitrogen Analyser from VELP Scientifica (Italy) to Australia.

The Velp NDA 701 claims to have the highest detection limits and readability on the market and an relative standard deviation lower than 0.5% for EDTA. Samples can be loaded in the 116 position autosampler using the same loading procedure whether solid, paste or liquid samples. Once loaded the unit is fully automated.

The DUMASoft™ software displays the program parameters, run conditions and results on a PC. Traffic light colour coding of all parameters makes for quick visual analysis at a glance. Different calibration curves can be created and managed. An on-board database containing methods for numerous sample types and different nitrogen standards can be used to optimise output to a
PC or LIMS for analysis.

The NDA 701 Dumas Nitrogen Analyser produces results in as little as 3–4 minutes per sample (compared to hours for the Kjeldahl method). Sample preparation and handling is quick and easy using the NDA 701’s encapsulator device, and interfacing with an electronic balance eliminates data transfer errors.

No daily calibration is necessary nor is correction factor checking. The CO2 absorbent is automatically regenerated and automatic leak testing by zone saves on correction time. The DriStep™ cooling device removes 99% of water vapour, reducing replacement frequency of the copper agent and running costs. Also provided are planned service alerts, stand-by and wake-up functions; the latter reducing energy consumption.

The NDA 701 Dumas Nitrogen Analyser features the Velp TEMS™ technology, offering significant reductions in time, energy, money (no reference gas, automatic regeneration of CO2 absorbent, extended usage of copper agent) and space.

Developed to carry out nitrogen analysis by the Dumas method which detects all elemental nitrogen (unlike Kjeldahl), the Velp NDA 701 complies with all established methods in accordance to national and international standards (AOAC, AACC, ASBC, OIV and ISO).


New generation colour measurement

ColorFlex EZ from Hunterlab claims to take colour measurement to a new level, with 45/0 optical design and versatility, flexibility, simplicity and performance in on easy-to-use unit.

This instrument has been designed to measure colour and appearance of any opaque or translucent material, whether it be a food colouring; herb or spice; postharvest vegetable, fruit or nut; juice, paste; snack food; meat, fish or seafood product; functional food; whether raw or processed, natural or manufactured; and whether in solid, liquid, powder, grain, flake or pellet etc form.

The ColorFlex EZ provides practical features and benefits such as:

  • More connectivity via USB flash drives, keyboards to enter custom IDs, barcode scanners, printers and PCs.
  • More simplicity via ergonomic push buttons, USB 2.0 communication ports, a small foodprint occupying minimal benchtop space, a high resolution colour display and a variety of sample handling devices.
  • More performance via easy data transfer between instruments, sampling versatility and expanded data storage, 250 setups and 2000 samples through on-board software.
  • More flexibility through the on-board software’s expanded setup configurations that include product standard values, pass/fail tolerances, colour scales, indices, illuminants and observers, sample averaging and multiple colour displays of colour data, colour difference data, colour plots and spectral data.

For even greater flexibility, the ColorFlex can be integrated with optional EasyMatch QC software on any PC. EasyMatch QC provides virtually unlimited storage of standards and sample data, a flexible graphical user interface and more output options including colour printing and export to Microsoft Office programs.

Novasys Group Pty Ltd
Tel: (03) 9752 3766
Fax: (03) 9752 3977
Email: sales@novasys.com.au
Web: www.novasys.com.au


New gelatin bloom strength test system

Brookfield Engineering laboratories now has available a complete system for performing the gelatin bloom strength test. This system includes Brookfield’s enhanced CT3 Texture Analyzer for measuring bloom strength, two baths and one refrigeration unit for gelatin preparation. This means that the complete gelatin bloom strength test system and an industry approved glass bloom bottle are available from a single supplier.

The enhanced CT3 Texture Analyzer (www.brookfieldengineering.com/products/texture-analysis/ct3.asp) combines simplicity of operation for users at all levels of experience and expanded test method capability in both compression and tension modes of operation. A wide variety of standard probes (cones, cylinder, blades, balls, punches) and fixtures (extrusion, cell, shear cell, grips, etc) are available for a range of regular applications. Brookfield offers customised equipment for specific applications. Texture Profile Analysis using Excel-based software enables the laboratory technician to generate analytical data comparable to other more costly systems.

Typical food applications include texture measurement of dairy products (butter, cheese yoghurts, etc), sauces, doughs, cookies, crackers and other baked goods, vegetables, meat products, candies, pie/cake fillings and puddings.


New food texture analyser

Mecmesin has released their new Texture Analyser FTA 2.5 Xt. The FTA 2.5 Xt, available in Australia through SI Instruments, is based on the Mecmesin MultiTest 2.5 Xt, the 2.5 kN test centre for tension and compression. The FTA 2.5 Xt is controlled by a Windows 7 Tablet PC, directly connected to the testing centre to control the machine and capture the data. The FTA 2.5 Xt can be pre-programmed for routine testing and it is possible to select up to five of these tests as ‘favourites’ which allows operators to load their test with one press of the button; ready for testing.

In depth and advanced routines can be programmed and the analysing part of the software enables in-depth analysis of food texture properties such as chewiness, firmness, hardness and softness of food products. Special probes and fixtures, such as the Kramer Shear cell, Dough and Gluten test cell and a variety of accessories are available for all food products.

Eric St Martins, SI Instruments
Tel: (08) 8352 5511
Email: eric@si-instruments.com
Web: si-instruments.com


Wrapper release test helps out in a sticky situation

Confectionery manufacturers can now evaluate and improve the functionality of sweet wrappers, as a result of an innovative new test available from Arrow Scientific.

The Wrapper Release test provides an accurate analysis of the difficulty consumers have when removing confectionery wrapping. The results obtained allow manufacturers to select or alter packaging materials to improve the consumer experience.

A large proportion of boiled sweets and chewy candies are presented in individually wrapped pieces, due to their adhesive nature. The wrapping must be of a unique, non-stick quality to allow it to contain and protect the product, without being problematic to remove. Materials that adhere tightly to the product will split and tear on removal – leading to consumer frustration.

The innovatively designed Wrapper Release rig, used in conjunction with the TA.XTplus texture analyser, incorporates a multi-slot plate and a clamping fixture. A large, rectangular sample of the confectionery product is placed on the underside of the multi-slot plate, while the wrapping material is attached to the upper fixture. During the test, the arm of the texture analyser brings the attached wrapping material down into each hole so that the wrapper repeatedly contacts and withdraws from the product.

The maximum force required to withdraw from the product is recorded, providing a measure of the adhesiveness of the material to the confectionery. For optimum performance, as low a force as possible would be the target. Using the results obtained, manufacturers can identify any issues with current or proposed wrapping materials and make changes accordingly.

Other instruments from Stable Micro Systems for the assessment of adhesive products include the measurement of peel strength, extrudability, hardness, elongation and ‘quick stick’ of products such as labels, sealants, tapes and pastes.

Laboratory scale depositer
Arrow Scientific also offers custom single-shot depositors suitable for heat sensitive, viscous products.

With batches as small as 500 g, the Bottom Line Depositor can deliver centre-filled products at a much lower cost than other currently available pilot equipment.

This new system produces presentation-quality product concepts such as filled chocolates, hard candies and caramels. It can also be used for new concepts such as honey-filled throat drops, yoghurt-filled fruit jellies, or sugar-free hard candy filled with energy gel. Candy pieces from 1–25 g can be created, and custom dies are available for innovative stripes, swirls and patterns.

The Bottom Line depositors have two (or more) individually heated and temperature-controlled product hoppers and pump heads. Servo operation for each pump is independent, so the operator can set separate parameters such as up and down speed, start and stop timing and stroke length.

The Bottom Line Depositor has many automated features, including a touch screen operator interface that can store up to 99 recipes. It can also be operated manually.

The hoppers hold up to 3 kg of product. Options include heat control on product hoppers and pump heads, custom die plates and special piece sizes.
The servo driven depositor has both product hoppers controlled independently, which allows for co-depositing two products with different properties. The control panel has an operator touch screen.

The pneumatic depositor is designed to sit on a lab counter top. The machine has a single hopper with a divider plate, which gives the capability of producing two colour/flavour products with similar heat and flow properties. This machine can also be built with multiple hoppers and heads.

Arrow Scientific Pty Ltd
Tel: (02) 9427 7455
Fax: (02) 9427 7456
Email/Web:
info@arrowscientific.com.au
www.arrowscientific.com.au


Onsite and laboratory mycotoxin detection

Vicam has launched Vertu™, a digital lateral flow technology for quantitative mycotoxin screening. The Vertu reader aims to provide accessible and cost-effective testing of aflatoxin and deoxynivalenol (DON) to food and agricultural producers who rely on early detection to protect both humans and animals from the effects of contamination.

Mycotoxins are naturally occurring chemical by-products of mould species which originate in soil. Severe rain and drought encourage mycotoxin production. Once released mycotoxins are difficult to manage and virtually impossible to destroy.

Regulatory levels set by international bodies require that mycotoxin testing be performed at several stages during a product’s manufacturing cycle. If a given product needs to be tested in the field, during receival or in a manufacturing QA laboratory, the Vertu reader provides manufacturers with a fast and easy way to achieve this. No special training or expertise is required to operate the reader. Operators obtain results in just a few minutes, providing critical data for the management and control of mycotoxins in grains and peanuts.

Dr Stephen Powers, Director of Research and Development for Vicam, said, “The new Vertu system for mycotoxin testing provides even greater speed and simplicity while continuing to provided the accuracy and reliability that are the hallmark of Vicam products.”

The Vertu technology enhances Vicam’s portfolio of single use food safety tests designed to meet the increasingly stringent regulatory and economic challenges confronting today’s global food chain.

Further information is available from
Mike Watson, 3-Tech
Tel: (03) 9752 0088
Email: mikeawatson@bigpond.com


Pumphead technology behind flavoured coffee success

Behind a successful flavoured coffee outlet is an efficient dispensing system, and behind an efficient dispensing system are pumpheads. One such successful outlet is Dunkin’ Donuts in America, who sells 2.7 million cups a day (or nearly one billion cups a year).

Watson-Marlow sells pumpheads to Taylor Company, of Rockton IL, USA, who manufactures the Flavor-Shot dispenser for Dunkin’ Donuts. The pumps can accurately and quickly dose concentrated flavours in volumes ranging from 1.6 mL to 32 mL. The machine can add flavour to containers from 350 mL to 7.5 L. The pump offers a long life before needing maintenance or cleaning, which, when required, is as easy as replacing a tube.

Watson-Marlow worked with Taylor Company to help test and improve the pumps for the Flavor-Shot dispenser. The Flavor-Shot project began in early 2002, and production began in October 2004. Since that time, Watson-Marlow have supplied 65 000 of the 313D pumpheads, worth $2.6 million.

The Flavor-Shot uses nine Watson-Marlow 313D pumps to inject flavours, and a tenth to add sugar solution. The product launch was planned for summer when sales of iced coffee start to rise. By adding the flavours, Dunkin’ Donuts were able to attract new customers.

Flavoured coffee has been around for many years. The flavour was added to the beans in production. This required a separate production run and distribution, and a separate brewing cycle in-store for each flavour. This inefficiency allowed Dunkin’ Donuts to offer only two flavours at a time. Now, the new machine offers nine flavours, and it is only necessary to brew regular coffee.

The machine speeds up service, shortening the lines that develop each morning in the store and at the drive-through. It also allows the company to satisfy customers who are very particular about what they want. A “blueberry iced coffee, half regular, half decaf, with melted sugar, and light on the cream” is no longer time consuming to prepare. Previously, this order would have required several steps, and wasted a hot cup of coffee to melt the sugar in before transferring to the cold cup.

The machine’s flexibility allows the creation of innovative flavour combinations, as well as reproduction of flavours offered by competitors.

Watson-Marlow Bredel Pumps are hoping to have a Taylor dispenser at this year’s foodpro (Stand V5).

Watson-Marlow Bredel Pumps
Tel: (02) 8787 1400
Fax: (02) 9729 0792
Email: enquires@wmbpumps.com.au
Web: www.wmbpumps.com.au.


VSM Series Micro Sensors

The new VSM Series Micro Sensors from Banner Engineering Corp provide a solution for a wide variety of applications in a number of different industries, specifically those requiring smooth, hygienic designs such as food and beverage, and pharmaceuticals. Their size and ability to function in heavy washdown environments that use a variety of liquids and chemicals make them versatile sensors in processing environments. In addition, they are an alternative to proximity sensors and optical fibers in high-flex environments.

These miniature photoelectric sensors are housed in either a threaded or smooth, self-contained 4 mm barrel with 300 series stainless steel, or in flat-pack side-looking housing, making them easy to clean. The sapphire lens resists a wide variety of chemicals and cutting fluids. The sensors provide an advanced convergent optical design for a very repeatable sensing range. Models are available with a 10, 20, 50 or 90 mm sensing range, and up to
250 mm as a through beam. A narrow, well focused sensing beam allows the entire sensor to be recessed into the fixture (excluding the 50 mm range model).

Micromax Sensors & Automation
Tel: 1300 36 26 26
Fax: 1300 01 700
Email: info@micromaxsa.com.au
Web: www.bannerengineering.com.


New data logger for energy management

Energy management is an important issue for the food industry now and in the future. A new data logger from Onset Computer Corporation, enables energy management professionals to easily track building energy consumption, equipment run times and water and gas flow rates. It can simultaneously measure and record pulse signals, events, state changes, and run times, and is capable of storing up to 4 million measurements, enabling longer deployments with fewer site visits.

The HOBO UX120 Pulse Logger, a highly versatile, 4-channel energy data logger combines the functionality of four separate data loggers into a single compact unit.

“The HOBO UX120 offers unparalleled energy measurement flexibility at a fraction of the cost of current multi-channel pulse logging solutions. It will become a standard toolbox product for energy monitoring applications where fast deployment and a range of energy measurements are needed. For example, while the logger is monitoring power use on one channel, it can independently track gas flow on another, pump runtimes on another, etc,” said Scott Ellis, Product Marketing Specialist for Onset.

The HOBO UX120 pulse logger claims to provide a number of features that provides users with greater control over their deployments. For example, users can start and stop the logger via software or pushbuttons, and set the logger so it continues to log/overwrite data when the memory is full. It also provides diagnostics via on-board LEDs to assure logger operation which aids the installation process, and enables high-speed data offloads via its USB 2.0 interface.

Onset’s new HOBO Power Logging System, which merges the HOBO UX120 Pulse Logger with Onset’s E50B2 Energy and Power Meter, provides a comprehensive energy and power monitoring solution. The flexible system can measure and record Power Factor (PF), Reactive Power (VAR), Watt Hours (Wh) and a variety of other parameters. Additionally, it accepts voltage ranges of 90–600VAC, current ranges of 5–32 000 amps, and can be used for both single and three-phase monitoring applications.

The HOBO UX120 Pulse Logger and HOBO Power Logging System are compatible with Onset’s HOBOware® Pro 3.2 software, which combines powerful graphing and analysis capabilities with a newly optimised interface for configuring logging options and sensors.

The Australian supplier of the HOBO UX120-017 Pulse Logger, available in standard and expanded memory versions, and the HOBO Power Logging System is OneTemp Pty Ltd.

Jon Lockwood, Product Manager,
OneTemp Pty Ltd
Tel: 1300 768 887


Grill marker now available in Australia

G.S. Italia, a leading manufacturer of machines and plant equipment for the food industry based in Marnate (Varese) Italy, has a range of grill marker machinery now available in Australia.

The grill markers are suitable for marking (not cooking) a range of products such as breads, peppers, zucchinis, meat steaks, hamburger patties and fish fillets. Grill markers are used to enhance the visual appearance of the food items by marking a ‘grate-like’ mark on the food product.

The markers are available in gas or electric models, with outputs from 80 to 400 kg per hour depending on the product. The marking rolls are made of AISI 304 stainless steel and can be customised: vertically for products in slices or pieces or horizontally for small products. The machines can also handle wet and salted products.

G.S. Italia has grill marker solutions for large industrial, and small- to medium-sized production lines and it is represented in Oceania by
HBM Packaging Technologies
Tel: (02) 8814 3103, (03) 9646 3153,
Email: barton@hbm.com.au, geoff@hbm.com.au
Web: www.hbm.com.au


Metal detectable products improve safety

Within the food and pharmaceutical industries, there is an ever present danger of contamination from protective clothing and other articles accidentally breaking and entering the production line. Undetected contaminants can result in costly product recalls, damage to equipment, harm to a company’s reputation or worse still, serious injury if the contamination is consumed.
CK Safety, sister company to Spray Nozzle Engineering (www.spraynozzle.com.au), has recently introduced an extensive line of metal detectable products to reduce the risk of product contamination during production.

CK Safety is the only supplier in Australasia of Detectamet products; products that can be detected by conventional X-ray systems (dependent on detection sensitivity), inline metal detectors and magnetic extraction systems. Because of this, any CK Safety product will be detected by these systems and be automatically rejected, providing immediate monitoring feedback in a HACCP system.

Selected metal detectable products can also be ordered with Microban® antibacterial protection to reduce, fungi and bacterial contamination and their related food spoilage and food safety risks.

The range metal detectable products available from CK Safety includes pens, cable ties, earplugs, beard snoods, spatulas, safety knives, wound dressing and a range of stationery.

CK Safety
Tel: (03) 9583 2368,
Email: sales@cksafety.com.au
Web: www.cksafety.com.au.


In-house allergen testing available

Food manufacturers are required to declare the presence of the major food allergens in their products such as peanuts, gluten and soy. Also manufacturers are increasingly creating new products that specifically do not contain certain ingredients. For example, there have been an increasing number of gluten-free products coming onto the market in recent years.

The presence of undeclared allergens in food products is not only a potential danger to the consumer, but also a leading cause of food recalls, which is costly in terms of both dollars and brand image.

Sources of allergens in finished product can be from raw materials, cross contamination from other products made on the same equipment, or transferred from elsewhere in the manufacturing plant. The ability to test at all levels, both raw and finished goods, as well as the plant environment is an important tool in prevention of contaminated product.

Previously testing for allergens has been either too complicated or too expensive to do in-house. However, with the new range of allergen testing kits from Romer Labs, manufacturers will able to perform their own testing onsite. The tests are claimed to be rapid, cost-effective, easy to use, require very little equipment or setup, and are suitable for both very low and very large volume testing. The range currently includes tests for the detection of peanut, gluten, milk, tree nuts, egg and soy.

Andrew Odd,
Australasian Medical & Scientific Ltd
Tel: (02) 9882 3666
Email: aodd@amsl.com.au
Web: www.amsl.com.au.


Beverage processing and testing

Microbiological testing
Arrow Scientific has launched the new 3M Petrifilm™ Aqua Plates for beverage manufacturers. This microbiological test has been developed to detect four of the most common contaminants in beverages: heterotrophic count, coliform, yeast and mould and Enterobacteriaceae. This product is an alternative to traditional agar petri dishes, which can produce excessive waste and require large investment in employee time and refrigeration space.

Petrifilm was introduced to food manufacturers more than 26 years ago and is used worldwide by food microbiologists in all areas of food safety and environmental testing.

The new Petrifilm Aqua Plates are promoted as providing a reliable and simple way to test product safety, saving beverage bottling companies time and money. In addition, they are easy to use and offer quality assurance professionals the opportunity to streamline their testing process.

The main users for the Petrifilm Aqua Plates are expected to be the bottled water industry but it will also be of benefit to makers of soft drinks, such as teas and carbonated drinks.

Extensive validation work has found that the plate performs well with a membrane filter placed on it.

Thermal processing equipment
Arrow Scientific works with Bottom Line Process Technologies (BLT) to design custom thermal processing machinery based on product, temperature requirements, space availability, laboratory layout and budget. They specialise in the design and fabrication of small-scale beverage equipment, and other bench-top machinery, which can fill at rates up to 1 L/min and with samples as small as 500 mL. Options include a beverage laboratory hot fill (HTST) pasteuriser, UHT systems, a batch bottle pasteuriser and a batch bottle chiller.

The standard HTST unit provides an efficient, simple to operate and affordable way to produce beverage samples under controlled conditions. There is a bottle filler box for safety, a hot water heater with digital controller, variable speed product pump, all stainless construction, digital product temperature display, water container with auto-refill for start-up and flush.

The batch bottle pasteuriser is a free-standing, movable unit which holds all bottles to be pasteurised. It makes processing of a wide range of products simple, safe, and scalable. It allows the heating and cooling of filled bottles to the required specifications. It can be used for a wide range of products including juices, teas, milk and milk products, alcoholic and non-alcoholic beverages, energy drinks and flavoured waters. The nominal capacity is 15 to 20 bottles (typically 350 mL) of juice or beer bottles. The operator can set the desired pasteurising temperatures, hold times, heating water temperatures, and cooled product temperatures with the easy-to-use touch screen operator interface. When the Start key is pressed, the unit automatically fills, pasteurises and cools the bottles. An alarm sounds when the cycle is complete.

The batch chiller is designed to cool bottles efficiently, create consistent processing results, and boost testing productivity. It consists of a stainless steel sink and a water chilling unit. The chiller is air-cooled, and is self contained. Both the sink and the chiller are piped together. Water circulates through the chiller to maintain temperature; the chiller maintains a control range from 4–37°C. The BLT Batch Bottle Chiller works well in the laboratory because it is a self-contained, moveable unit.

Arrow Scientific Pty Ltd
Phone: (02) 9427 7455
Fax: (02) 9427 7456
Email: info@arrowscientific.com.au
Web: www.arrowscientific.com.au.


Merck Millipore has Charm

Merck has acquired Millipore with the new company now Merck Millipore from the beginning of 2011. The company has also announced that they are the new distributor for the Charm Sciences Inc range of products, in the areas of food safety, water quality and environmental diagnostic tests. The portfolio includes test kits and systems for antibiotics, veterinary drugs, mycotoxins, pesticides, alkaline phosphatase, pathogens, end-product microbial assessment, allergen control, and ATP hygiene.

Charm Sciences is a well known technology leader in advancing both dairy and food safety diagnostics worldwide.

Merck Millipore Pty Limited
Tel: 1800 335 571,
Fax: (03) 9728 7611
Email: merck@merck.com.au
Web: www.merck-chemicals.com.au


NIMPL frozen mussel processing system utilises innovative technology

North Island Mussel Processors Limited (NIMPL) in Tauranga, New Zealand, has installed a processing system that can withstand the challenging frozen mussel processing environment. The customised distribution solution combines an open, gateless stainless steel design with caustic wash down capabilities to minimise food safety risks.

The state-of-the-art NIMPL facility processes up to 1.6 million individually quick frozen (IQF) half-shell mussels per day. The factory comprises an innovative combination of distribution, accumulation and weighing systems provided by packaging and processing specialist tna (www.tnasolutions.com).

A key feature of the system is the five electromagnetically-driven horizontal motion conveyors (tna roflo®HMW 3). These have been specially constructed to handle intense pressure cleaning with caustic solutions without the need to remove any guarding or machine parts. Importantly, the roflo®HMW 3 is gateless so the risk of contamination is minimised. This hygienic design is particularly important in shellfish applications where microbial pathogens, particularly Listeria, are a serious threat.

The rapid, yet gentle linear motion of the conveyor transports the IQF mussels with no vibration, reducing damage to the shells which can be brittle depending on the season. This is important as the mussels are served in the half-shell, so broken shells are not acceptable.

According to Steve Wells, General Manager at North Island Mussel Processors, the gentle handling of the mussels by this system has already resulted in a 20% reduction in shell breakages. It also meets their stringent cleaning requirements while also maximising productivity and operational efficiency as it significantly reduces downtime for cleaning by up to 60% and cleaning time by 40% compared to conventional conveyors. With full automated control and few moving parts, they expect that the ongoing maintenance requirements will be considerably less than mechanical handling systems.


Radio frequency technology increases warehouse efficiency and safety

Materials handling turnkey specialist Industrial Conveying has developed a new technology for high rise warehouses to allow each crane to communicate with every stationary object on its racks. The High Bay Stacker system is essentially a sortation system managed by Radio Frequency (RF) technology. The tight communications link between the materials handling technology and the product provides a rapid movement by the crane to gather stock. It allows fast and accurate use of very high spaces within a warehouse and as efficiently as at floor level. Stacker units achieve their high efficiency and rates of accuracy through automated control systems that accurately and rapidly position them on their X and Y axes.

In high-rise warehouses, RF-guided ASRS (automated stacking retrieval system) stacker crane systems are claimed to the most effective way to store pallets because they can achieve far more efficient aisle movement, lift- and lower-times, and placement and retrieval than the human-operated forklift.
In addition, forklifts can be expensive to operate and tricky to maintain, involve a lot of human input and in recent times have been identified by WorkSafe bodies as a leading cause of personnel injury in Australia. Energy prices, particularly electricity, forecast for continuous price increases across Australia in the coming years, will also impact on forklift use.

Also predicted to increase is the price per square metre of floor space, forcing some warehouse operators to look for ways of reducing floor spacing and optimising the area between the floor and ceiling. Companies in this situation require accuracy of selection during the materials handling process but find it hard to reduce damage to product while maintaining multiple choice of picking (a ‘first-in first-out’ system or by selection).

The stacker crane technology can reach much higher than the tynes of forklifts and will operate across a wide temperature and environment band to facilitate all types of industries, conditions and atmospheric variations, ie where heat and/or humidity are required in the warehousing environment all the way down the other end of the temperature scale where frozen products are being stored at -30°C.

“Stacker crane technology is configured to be extremely cost-effective regardless of how high or how low an altitude it is handling – the technology is scalable and cost efficient regardless.

“ASRS suits general transport logistics services, the food and beverage processing industry, snack foods warehousing, general industrial warehouses and retail warehousing operations,” explained Managing Director of Industrial Conveying Don Erskine.

The solution fits into a logistics and distribution chain better than a forklift system. It combines with automatic truck loading systems for a pre-assembly of loads waiting for the next truck to arrive, which makes a positive difference to operating costs. Loading also becomes much quicker. With this system an operator can ‘cube’ the load to get optimum usage in the truck space. It provides the ability to be able to load B-Double trucks automatically.

The ASRS integrates easily with Industrial Conveying’s suite of pallet dock loading and dispatch technologies which can be entirely automated or made to work in synchronicity with dock loading forklifts.

Don Erskine, Industrial Conveying (Aust) Pty Ltd,
Tel: (03) 5440 5100
Web: www.icaust.com.au


New food transport trolley

The Swedish-designed Temptainer is the new generation of food transport trolley now available from Warequip.

The active heating unit can be connected to a standard power point to heat it to the desired temperature. The stainless steel design and deep draw guides assists easy loading. High pressure polyurethane foam (74 mm) provides insulation and keeps the temperature inside constant during food transport. All Temptainers have user friendly handle bars, shock absorbing bumpers and a completely hoseable interior and exterior, for ease of cleaning.

Temptainers are available in active heating, neutral and active cooling, with single storage, twin and tower models for more flexible food transport.

Warequip
Tel: 1800 337 711
Web: www.warequip.com.au


CHEP crate system shows proven sustainability

CHEP Australia’s returnable plastic crate (RPC) system for produce has proven its sustainability credentials, delivering significant environmental performance as well as functionality and financial value in the supply chain.

An independent lifecycle study by RMIT University Melbourne found that the CHEP RPC system generated significant benefits for customers compared with a single-use corrugated cardboard packaging system. Based on the results of the study, the estimated benefits on a daily basis are more than 175 tonnes of greenhouse gas emissions saved, more than 1.2 million litres of water saved, and more than 20 tonnes of solid waste avoided.

The study complies with the ISO 14044 methodology for environmental systems and has been thoroughly peer reviewed by two independent industry experts. The extensive assessment took into account the environmental impact of the entire product and system lifecycle, including inputs to manufacture and the full end of life processes for both packaging systems.
The key results from the study highlight the sustainability efficiencies of the CHEP RPC system when compared with a single-use corrugated cardboard system. The efficiencies identified include:

  • Greenhouse gas emissions – 70% less emissions than a single-use corrugated cardboard system.
  • Landfill – 95% less solid waste than the single use corrugated cardboard system because of a reduction in manufacturing process waste, even if all cardboard is recycled after use.
  • Water usage – 85% less water is used to wash RPCs than is required for the manufacture and recycling of a single-use corrugated cardboard system.

CHEP Manager of Business Development Renee Holbrook said, “This study confirms the RPC system performs with lower environmental impacts across a wide range of possible situations. Looking forward, sustainability will continue to be a critical element in CHEP’s value offering and ongoing product development.”

“These measures of environmental efficiency highlight the importance of CHEP’s network planning and efficient reverse logistics in delivering the most sustainable service to our customers and their supply chains. This service will continue to be an important element in the management of existing platforms and the design and development of new reusable packaging solutions,” she concluded.

Further information is available via www.chep.com.


New liquid analysis controller

Endress+Hauser’s Liquiline CM442 digital, multi-parameter controller and range of digital sensors provide a comprehensive analyser and sampler platform. The device currently measures six different parameters: pH, oxidation reduction potential (ORP), conductivity, turbidity, nitrate and dissolved oxygen. It is designed for applications such as water and wastewater, power plants and the chemical industry.

In all of today’s industries, safe and accurate process measurements are crucial. The sensors use Endress+Hauser’s Memosens digital technology, which claims to have revolutionised the safety of data transmission. This technology overcomes technical problems associated with analogue analytical measurements and assures interference-free, reliable data transmission. The uniform connection and software across all parameters standardises operation for all devices, assuring safety and minimising training costs.

Identical sensor connections, cables and hardware make it possible to switch between parameters without any adaptions. This simplifies inventory requirements and significantly reduces inventory costs. Just one CM442 controller is required for two parameters so fewer field transmitters/controllers are needed at a measuring point. Currently any combination of two sensors can be connected, with eight sensor capability available early in 2011.

The CM442 has a graphic backlit display for simple and clear menu guidance. A jog shuttle navigator allows the user to scroll rapidly through plain text menus, even when wearing gloves. In addition to the configurable relay outputs, the display features a red-lit background for alarm conditions to alert users to errors, further enhancing safety.

Fast commissioning, calibration and maintenance are possible due to the plug-and-play capabilities of the Memosens technology, which allows for pre-configuration and workshop calibration of sensors. Process compensations and auto-cleaning functions are easily enabled by freely editable tables and mathematical functions, whilst effective asset management is enabled when integrated into Endress+Hauser’s FieldCare and W@M asset management solutions.

Jimmy Britz, Product Manager Analysis, Endress+Hauser Australia
Tel: (02) 8877 7000
Email: jimmy.britz@au.endress.com
Web: www.au.endress.com


Measurement of head load forces in capping machine

SI Instruments has developed the mini TehloTest for measuring head load force in capping machines. The wireless edition of the long proven Head Load Tester is now available in a miniaturised size. The mini TehloTest is ideal for small bottles, as it is only 42 mm in diameter and 101 mm tall. It can be wirelessly operated from a distance of up to 30 m – no wires to be pulled or damaged while the unit travels through the capping machine. Designed for use in the production line, the mini TehloTest consists of two parts: the mini test unit containing the load cell – in a custom made sleeve to imitate the exact size and shape of the bottles – and the user interface, containing the control module.

The possibilities extend further with EasyPlot graphing software, making it possible to obtain a full graph of the capping force on a computer screen.

Accurate measurement with a fast response rate in a strong, durable, robust housing, the mini TehloTest is easy to use, with clear intuitive controls. It features a large, easy to read backlit LCD display with interchangeable units of measurement (N, kg or lb).

Eric St Martins, SI Instruments
Tel: (08) 8352 5511
Email: enc@si-instruments.com
Web: SI-instruments.com


New Velp DKL series from Rowe Scientific Pty Ltd

The new range of Velp DKL digesters are suitable for a variety applications in food and feed, beverage (nitrogen, protein, Total Kjeldahl Nitrogen), environmental (COD, Total Kjeldahl Nitrogen), chemical and pharmaceutical (organic nitrogen) industries, in accordance with a variety of International Standards (such as AOAC, ISO, EPA, DIN etc). The range features a DKL 8, 12 and 20 which hold 42 mm outer diameter test tubes. There is also a DKL 42/26 which holds 42 x 100 mL 26 mm outer diameter test tubes.

In order to neutralise the fumes produced during the digestion, DKL sytems can be combined with a proper Aspiration Pump and Fume Neutralization System. The Velp SMS Scrubber is designed to neutralise corrosive and toxic fumes that develop during oxidative mineralisation (or other) processes. The system is supplied in the configuration consisting of two stages: condensation and neutralisation. The SMS scrubber can be supplied with a third (optional) stage, generally used with samples that generate high amounts of fumes during digestion (eg soybean).

The SMS has a broad range of applications, from the Kjeldahl method to neutralisation with acids and bases. Thanks to the elevated surface of contact between gas and liquid, the SMS provides effective cleaning of the fumes, preventing their hazardous emission into the laboratory and environment. The SMS attains its maximum effectiveness when combined with the VELP JP recirculating water pump for fumes aspiration.

Lack of adequate water mains pressure, or its high consumption, frequently prevents common water pumps from being used. The Velp JP consists of an ABS structure highly resistant to chemical corrosion and a tank where water is recirculated continuously, offering savings on water usage.

The quality of the materials used make the Velp JP extremely quiet, durable, and guarantee a high flow rate (up to 35 L/min). Special technical features, such as the level tank for checking the water, the cock for emptying the tank and two convenient handles for handling, help the laboratory technician during use.

To find out more go to www.rowe.com.au.


CombiCube B to debut in Australia

The Australian company CoPack Beverages based in Victoria is the first company in the world to start operation with the new CombiCube B which is a compact brewhouse from Krones Steinecker plant in Germany (www.krones.com), which was unveiled in July.

This is the first time that CoPack Beverages has produced beer in-house; normally they are a contract bottler for both alcoholic and soft drinks.
After investigating the options available for the desired scale of operations, they found that the CombiCube B offered the most convincing technological concept in every aspect.

Up to this point, breweries with a brew size of 5000 to 10 000 L of cast wort have not been able to benefit from Steinecker’s innovations and capabilities. Their customised installations beyond this output could not be readily adapted for the smaller output range, so they aimed to modify the large-size kit for the lower output range. However, this compact brewhouse can also be used by breweries with a higher output who want to produce their seasonal and specialty beers in a separate brewing process, independently of their principal brands.

Depending on the mashing process chosen, a maximum of four vessels of the compact brewhouse are used as a mash tun, a mash-wort copper, a lauter tun or a mash-lauter tun, complemented by a whirlpool. The vessels are equipped with state-of-the-art technological features similar to their large-size counterparts in Steinecker’s range.

The compact dimensions of the frame construction, with vessel sizes specifically tailored to the needs of mid-tier breweries, save an significant amount of space as well. Depending on the version involved, the entire brewhouse has a footprint of only 97 to 117 m2. This also reduces the costs required for transport and erection.


New manufacturing equipment increases production efficacy

New manufacturing equipment suitable for the manufacture of pasta and filled snack and dessert products is now available in Australia.

Volumetric fillers
Multi-Fill Inc of Utah, USA, specialise in the manufacture of semi-automatic and automatic volumetric fillers for the home meal replacement, convenience foods and foodservice sectors. Recently Multi-Fill successfully installed a MPFSH-075 Automatic Volumetric Filler for Victorian food manufacturer Casa Della Pasta at their Thomastown facility.

Casa Della Pasta supplies fresh, frozen and precooked pasta, ready meals, pasta and finishing sauces and pasta bakes. Until the Multi-Fill was introduced into production, the company was constrained by the sticky nature of their pasta products, particularly spaghetti and fettuccini, and were manually filling with a line output of 16 meals per minute.

The company can now dose efficiently and effectively with one clean dose. Most of their products were previously pre-weighed by hand as it was difficult to get the weight or position right. This process is now achieved with only one person, who ensures that the feed hopper has product, saving on staff and increasing production volumes.

The Multi-Fill MPFSH-075 volumetric filler was chosen by Casa Della Pasta as it is able to process difficult to handle products such as cooked rice, cooked pasta, cut fruit and vegetables, cereals and shredded meats and has an output speed of between 50–75 cpm, depending on the product and the container type.

The machine installed at Casa has reportedly increased their production by 300% to 50 meals per minute, improved quality and eliminated the need for manual pre-dosing with a significant reduction in labour.

Lasagne lines
GS Italia, based in Italy, claim to have revolutionised the production of fresh lasagne with their automated lasagne lines. With more than 25 successful installations around the world, the lasagne lines are becoming a popular alternative to the traditional hand-made options for producing lasagne as the machinery is able to maintain the ‘hand-made’ look of the lasagne and has a production speed of 300 to 1200 pieces/h.

Available in both straight line or rotary configurations, semi-automatic or fully automatic, the machines can be custom designed to provide the smallest footprint possible, without compromising on the productivity. There are two dosing/filling units that dose the béchamel and ragout, an automated tray dispenser and the heated product storage tanks hold 100 L.

The lasagne lines are designed to handle the complete production process; from the production of the dressings (meat sauce and béchamel) to the preparation and packing of the final products, ready for sale.

Product forming machine
GS Italia is also offering The MaxiForm Baby, a versatile product forming machine designed to produce snacks and sweets – plain or filled – in different shapes. The machine is suitable for small to medium production, and can produce up to 2500 x 30 g pieces per hour. A new pushing system controlled by an inverter takes the place of the old screw conveyors. The new system has significantly increased the production speed and allows for more delicate product production, which has improved the quality of the final product. The exit mouth of the machine has been enlarged to 65 mm to cater for the production of croquettes of up to 300 g.

Designed for flexibility, the MaxiForm Baby can produce products from 6 to 300 g using flour, rice dough and meat, chicken, fish, vegetables and cheese filling including Arancini pear shaped balls, stuffed or filled gnocchi, cheese, meat, fish or rice balls, fruit bars with a jelly filled pillow, sausage rolls and meat pies, small sweets and truffles.

All equipment is available in Australia and New Zealand from:
HBM Packaging Technologies
Tel: (02) 8814 3103 / (03) 9646 3153 / +64 9 271 6144
Email: barton@hbm.com.au / geoff@hbm.com.au,
wayne@hbm.co.nz
Web: www.hbm.com.au.


Universal Potato Chip System

Earlier this year, Heat and Control announced a new product release, the Universal Potato Chip System (UPC).

UPC is claimed to be the world’s most versatile fryer system for potato, plantain and other snack chips. From hard-bite style to traditional chips, UPC allows the manufacturer to create personalised snacks for each customer.

UPC utilises independent fryer modules integrated into one continuous frying system. The temperature, dwell time and oil flow in each module can be adjusted to produce chips with specific texture, moisture and colour qualities. UPC features new technology protected by patents applied for and granted.

The UPC is claimed to be economical and efficient, costing less to operate than separate batch or continuous fryers producing the same capacity. UPC claims to use about half the energy of comparable batch fryers. It can also produce traditional style potato chips using little or no slice washing.

Easy-to-use PLC control stores multiple recipes so products can be changed in minutes. Cooking oil is continuously filtered in each frying module for superior product quality.

Heat and Control provides everything required to process and package snacks, including potato unloading, storage, and preparation systems, continuous and batch peelers, inspection conveyors, batch and continuous fryers, seasoning applicators, conveyor and distribution systems, installation services, classroom and on-site training, field service and spare parts, equipment demonstrations, ongoing technical support.

Amber Crowley, Heat and Control Pty Ltd
Tel: (07) 3877 6387
Fax: (07) 3343 8371
Email: acrowley@heatandcontrol.com
Web: www.heatandcontrol.com


Aseptic form-fill-seal equipment for new mini milk-portions

Benco Pack SpA of Italy have been chosen by Nestlé China to supply an aseptic form-fill-seal machine for their new range of UHT milk cream mini-portions. Benco Pack custom designed a solution for the unique requirements of the customer which culminated in a fully aseptic packaging line that is highly automated and offers increased efficiency and ease of operation.

The Miniasepack/32/20 is claimed to be one of the most cost competitive aseptic machines available globally and was chosen due to the excellent return on investment and the high efficiency (> 95%).

The horizontal aseptic machine uses a three step packaging and filling process. Containers are thermoformed starting from a roll of multi-layer plastic film (PS/EVO/PE or similar), filled with the UHT product, closed by a thermo-sealed, peel-able lid and then cut to the desired configuration. Nestlé will produce UHT milk cream mini-portions of 10 mL that are designed to be drunk with tea and coffee. The machine is capable of outputs of up to 36 000 cups/hour.

Due to the aseptic packaging technology, the cups do not need to be distributed via a cold chain. The machine is pre-sterilised and maintained in sterile conditions by steam and hydrogen peroxide sprays. The packaging materials are sterilised and the process occurs inside a tunnel with an overpressure of sterile air.

Vezio Bernadri, Chairman of parent company Sacmi Filling, said, “We have complied with increasing market demand for highly automated machines which combine easy operation and increased efficiency, production speed and noise reductions.”

Benco Pack offers form-fill-seal systems for mini-portions, single and thermoformed cups, in Hygienic, Ultra Clean and Aseptic versions, with over 350 machine installations worldwide.

Benco Pack is represented in Australia by HBM Packaging Technologies.

Barton Porter, Geoff Kelly,
HBM Packaging Technologies
Tel: (02) 8814 3100, (03) 9646 3153
Email: barton@hbm.com.au, geoff@hbm.com.au
Web: www.hbm.com.au


OneStep technology for processing UHT milk

In May, Tetra Pak (www.tetrapak.com) launched OneStep technology, a Tetra Lactenso™ Aseptic solution that incorporates UHT white milk production within a single, high-throughput process.

OneStep technology eliminates the need for pasteurisation, pre-treatment and intermediate storage. In one continuous process, raw milk is preheated, clarified, separated, standardised and homogenised, before undergoing UHT treatment and regenerative cooling, and then being transferred to two aseptic buffer tanks. This shortens processing time from as much as two days to just a few hours, cutting operating costs by up to 50% compared with conventional solutions.

In essence, the innovation of OneStep technology is that it combines heat treatment, separation and standardisation into a single step, significantly simplifying and accelerating the production process.

In addition to shortening the time it takes to process raw milk, OneStep technology also incorporates aseptic buffering, enabling completely automated and continuous UHT operations, with fewer process steps and smaller hold-up volumes in the line.

“The whole process is far more efficient than conventional solutions, creating significant savings when it comes to operating costs and greatly reducing the environmental impact. And because a lot less equipment and floor space are needed, capital costs are also lower. It adds up to greater efficiency at lower cost,” said Bengt Eliasson, Manager, Tetra Pak Dairy Aseptic Solutions.

Tetra Pak OneStep technology claims to reduce energy and water consumption by up to 35%, and cut waste and effluent load by as much as 60%, due to better accuracy in chemical use during Cleaning in Place (CIP). These savings are estimated to reduce the carbon footprint of the production process by around 40%. Furthermore, the streamlined process cuts product loss by up to 30% compared to conventional UHT solutions, due to fewer process steps and smaller hold-up volumes in the line.

With the ability to change the fat content of milk products without stopping production – and to run milk with different fat contents at the same time – OneStep technology provides aseptic line flexibility, enabling efficient production planning and high utilisation of filling machines, with up to 100% availability.


Viscometers and rheometers for chocolate manufacture

Rheological measurements are essential in optimising the production and properties of confectionery. The HAAKE Viscotester 550 is used to determine the flow behaviour and yield point of chocolate melts according to the guidelines of the expert commission of the Office International du Cacao, du Chocolat et de la Confiserie (OICCC), therefore influencing product characteristics such as melt and setting behaviour.

The HAAKE Viscotester 550 assists in the measurement of data and different parameters that influence the quality of the chocolate. When used in conjunction with the use of the HAAKE RheoWin software, it is possible to graphically visualise the measured data.

An extensive range of accessories for the range of viscometers and rheometers is available to cover the unique aspects of a wide variety of applications. For example, a bending instrument is available for the rheometer line which can be used to place bars of chocolate and perform bending, breakage and penetration tests.

With the RheoScope module for the HAAKE MARS Rheometer platform, structural examinations can be performed using optical microscopy at the same time as the rheological measurements. In this way, the melting behaviour of fat samples and crystal formation can be studied. A Universal holder makes it possible to take measurements in original containers, such as jars of chocolate sauce. This eliminates the time-consuming process of pouring out samples and cleaning cups, and also preserves the material structures.

Kaye Griffin, Rheology Solutions Pty Ltd
Tel: (03) 5367 7477
Fax: (03) 5367 6477
Email: info@rheologysolutions.com
Web: www.rheology solutions.com


Quality control measurement of liquids and packaging

In order to achieve high quality merchandise with minimal production losses, good process control and monitoring is critical. This is true for production of both a food product itself, the packaging, and putting the former inside the latter efficiently. Laboratory and on-line systems are capable of delivering solutions for quality control (QC) monitoring, and in cases where extra information about the flow properties (of liquid foods) is unnecessary, an on-line option can be the most useful.

On-line systems often provide streamlined data, showing changes in more limited criteria for the product during the process. In this way corrective action can be quickly taken, minimising potential for waste and reprocessing. Laboratory instruments, designed for quick data collection (only a few seconds or minutes) and intuitive understanding of the data can also be useful in this respect where no proven on-line alternative exists.

On-line monitoring of shear viscosity is widely accepted for many kinds of materials including for liquid foods, and molten polymer packaging. In-pipe or in-tank probes can closely monitor the shear viscosity of the material in situ, allowing operators and engineers to take appropriate action to maintain the specifications of the food product. These probes can also be mounted at the die end of an extruder to monitor the viscosity of molten polymer before the moulding of packaging. Post-extrusion, the quality of the packaging material can be monitored optically to detect, catalogue and notify when user defined flaws exist in the packaging material (eg fish eyes, pinholes, dark/light spots etc).

For filling a liquid food into a package (by pouring, squirting, spraying etc), extensional viscosity often dominates the process. Unfortunately, there is no proven on-line method for monitoring the extensional viscosity of foods as they are dispensed from above into their packaging. However, a novel, simple and quick laboratory technique has been developed for this purpose – measuring the relative impact of the extensional properties of a liquid. In this way the product and the packaging can be monitored on-line right through the process, until the product has safely been deposited in its packaging.

Rheology Solutions designed the Marimex ViscoScope Viscometer for this purpose. The system data can be fed to the programmable logic controller (PLC) within the production process and by monitoring viscosity and temperature in-line, any out of specification product is identified and the process can then be adjusted accordingly.

This system can be used within pumping, mixing and storage stages for raw materials and finished products to consistently measure and report on viscosity and temperature changes.

The ViscoScope system consists of a rugged sensor and associated electronics, which has been designed for process environments. The sensor has high resistance against foreign influences and can be applied in many industries including chemical, petrochemical, pharmaceutical and food industries.

Dependent on the application requirements one or two Pt100 temperature measurement devices will be used within the sensor. The first Pt100 is built into the sensor probe itself and measures the process temperature at the same location at which the viscosity is being measured. A second Pt100 is used in higher temperature applications to measure the coil temperature. Besides internal monitoring and analysis of the health of the sensor, the second Pt100 can be used for temperature control of the coils, providing consistent performance of the sensor at changing high process temperatures.

Customer calibration is not required. Start-up of the system is accomplished in a few steps, including an automatic zero procedure, which can be initiated from the front panel, a pocket PC or remotely. Maintenance free operation of the ViscoScope system provides low cost of ownership. The sensors are approved for hazardous areas.

Rheology Solutions also provide on-line optical systems that are capable of delivering solutions for QC monitoring, particularly for raw materials or final products used in pellet or free flowing powder form, or for sheets and films of various opague, semi-transparent and transparent materials. These on-line systems are based on optical closed circuit cameras, and are used to observe the powder/pellets or film/sheet. Comprehensive software can analyse the images, recognising and cataloguing user-defined abnormalities, complete with images, sizes and user defined classifications, including tears, scratches, holes, discolourations, as well as dimensional irregularities for pellets and so on. The system can be trained to recognise (or ignore) and catalogue any defect seen by the camera, and the camera can be used in either transmission mode (for transparent films) or reflection mode (for opaque films, or a combination of both).

The web inspection system FSP 600 detects, documents and protocols optical defects on transparent and opaque/coloured film using transmission and reflection lighting technology. The lighting technology is a special lighting unit with a focussing lens. This lamp uses high frequency standard fluorescence tubes, so that service and maintenance costs are very low. The maintenance can be carried out easily by the customer.

The high end system uses Fuzzy algorithms and is able to distinguish between a fly and a gel (for example). The easy Teach-In classification enables the operator to select and name the defect classes by evaluating the defect images. Then a classifier automatically determines the parameters for these defect classes.

Furthermore, the operator has the possibility to evaluate the defect image with a 3-D Analyser. The Filmtest Evaluation Software enables the customer to re-analyse the defect information according to other specifications.

Rheology Solutions
Tel: (03) 5367 7477
Fax: (03) 5367 6477
Email: info@rheologysolutions.com
Web: www.rheologysolutions.com


Texture analysis in the quest for perfection

In his recent prime-time TV series, In Search of Perfection, chef Heston Blumenthal has turned to texture analysis with a TA.XTPlus texture analyser to help him perfect classic dishes.

With the help of food physicist Malcolm Povey and Stable Micro Systems’ TA.XTPlus texture analyser, the popular BBC show recently showed chef Heston Blumenthal combining science and cookery in order to create the perfect crispy fish batter.

After struggling to produce the ultimate batter – one that hardens on the outside while steaming the fish gently from within – Chef Blumenthal visited Malcolm Povey, Professor of Food Physics at Leeds University. Well known for his extensive work in food science, Professor Povey pioneered Stable Micro Systems’s acoustic envelope detector, which measures the burst of sound generated when food is bitten or snapped.

Utilising this innovative instrument along with a TA.XTPlus texture analyser and ball probe, Professor Povey and Mr Blumenthal tested batter to identify what constitutes the ideal crispness.

According to the sound pulses measured, the results showed that the more bubbles there are in batter, the crispier, and more appealing, it will be.

Described as a man who has made cooking a science, Chef Blumenthal’s work reflects his innovative cooking philosophy. A self-taught chef, his cuisine has earned him three Michelin stars and includes such dishes as snail porridge and bacon and egg ice-cream.

Chef Blumenthal’s work with Professor Povey demonstrates the wide scope of texture analysis. Providing essential data on the texture of foods, it is proving to be an invaluable tool in many sectors, enabling scientists and food manufacturers alike to create perfect foods time after time.

Other novel attachments for TA.XTPlus texture analyser used in testing cereal and baking products include the Noodle/Pasta Loop Tensile Rig which aids manufacturers in testing the resilience and consumer appeal of cooked sheet pasta and noodles and Peel rigs for testing packages.

The TA.XTPlus texture analyser is available in Australia from Arrow Scientific.

Arrow Scientific Pty Ltd
Tel: (02) 9427 7455
Fax: (02) 9427 7456
Email: info@arrowscientific.com.au
Web: www.arrowscientific.com.au


State-of-the-art XRD analysis

X-ray analytical instrument manufacturer PANalytical, Almelo, The Netherlands (www.panalytical.com), has made advances in multi-purpose X-ray diffraction (XRD) with the launch of its Empyrean high-performance diffractometer. Every major element of Empyrean is new: the X-ray source, the state-of-the-art goniometer, the sample stages and the radiation enclosure. Importantly, the instrument also introduces the world’s first 3D detection system, PIXcel3D.

As a result, Empyrean is able to measure all sample types – from powders to thin films, from nanomaterials to 3D objects – on a single instrument. Users can switch between application set-ups in a fast and cost-effective way using PANalytical’s proven PreFIX modules. Dedicated hardware, software and regulatory expertise incorporated in pre-defined programs, and a customisable desktop and batch sample capabilities help make advanced functions accessible to all.

Dr Martijn Fransen, Product Marketing Manager XRD, said, “Empyrean is PANalytical’s answer to the challenges of modern materials research. … The lifetime of a PANalytical diffractometer stretches further than the typical horizon of a single research program and, for many scientists, an ability to accommodate change is a ‘must-have’ feature in their decision to invest in an XRD system.”

For many users, powder samples are their primary interest. However, with respect to thin films, Empyrean provides for high-resolution epitaxy analysis and handles all common applications. Investigations into nanomaterials can also be performed with the system: size and shape of crystalline domains within the material, and structural analysis of near amorphous materials are all possible. PDF (pair distribution function), SAXS (small angle X-ray scattering), and even the ability to monitor the evolution of crystalline phases in situ with the unique slurry flow cell stage are all possible on the advanced Empyrean platform. Finally, the internal structure of solid objects can be studied without having to be cut: the unique PIXcel3D detector can be used as a CT scanner allowing non-destructive analysis of various products including food.

PANalytics promote the use of their X-ray analysis systems for heavy metal determination as well as rapid product and raw material fingerprinting, adulteration and product tampering.

PANalytical Spectris Australia Pty Ltd
Condell Park, NSW
Tel: (02) 8700 2700
Fax: (02) 8700 2710


Viscosity measurement training

Brookfield offers two courses that provide users of Brookfield instrumentation with the hands-on knowledge to get the most out of their viscosity test methods. The training sessions are presented in easy-to-understand terms that provide the working knowledge to verify and improve upon the data required for meaningful R&D and successful quality control testing.

The courses are offered at Brookfield’s facility in Middleboro, Massachusetts, USA, and at major metropolitan areas across the USA.

Remaining sessions in 2010 for the first course, Practice Course on Viscosity Measurements, will be run on 12 and 19 August and 9 and 15 September and the second course, Applied Course on Viscosity Test Methods, will be held 16 September. Practice Course on Viscosity is designed for operators at all levels of experience while Applied Course on Viscosity Test Methods is designed for intermediate to advanced operators.

Further information is available at
www.brookfieldengineering.com/services/educational-programs. The Australian dealer for Brookfield is Thermofisher Scientific (www.thermofishersci.com.au/aushome.asp).


Multi-tasking inline photometry

Endress+Hauser’s Memograph M CVM40 optical measurement recorder not only provides continuous measurement of UV absorption, colour, NIR absorption, turbidity and cell growth, it claims to also record other relevant process values such as flow, pressure, temperature.

All process measurements are stored internally and on an SD card or USB stick for easy data exchange and further correlation analysis. This makes the Memograph M CVM40 suitable for optimising process control and product yield, as the interactions of various process variables are made clearly visible. The calculation and table functionality of the CVM40 further enhances its ability to provide the process engineer with a range of interpretive information.

Laboratory grab sample requirements are significantly reduced, and are limited to only those instances when verification or calibrations are carried out. The patented Easycal system enables easy and traceable in-line verification and calibration without liquid standards.

The recorder’s high level of functionality is matched with a high level of data security and features all the technical controls for compliance with the FDA’s 21 CFR Part 11 Rule on electronic records and signatures. The 17.8 cm (7”) TFT large colour display provides optimum readability which together with the intuitive menu guidance system ensures easy and safe operation in the most difficult conditions.

The combination of functionality, traceability, and data analysis makes the CVM40 suitable for use in a range of applications in the life science, chemical, food, oil and gas and environmental industries.

Jimmy Britz, Endress+Hauser Australia
Tel: (02) 8877 7000
Email: jimmy.britz@au.endress.com
Web: www.au.endress.com


Titration analysis in one simple step

Graintec Scientific recently announced the launch of the new AquaMax KF moisture meter for titration analysis. The AquaMax is claimed to raise the bar in terms of titration analysis in its most simplest and convenient form.

“Labs who undertake titration analysis will be pleasantly surprised at just how much the AquaMax can offer. The instrument is compact and can be easily positioned on a laboratory bench. It also features an in-built battery for those who require in-field measurement,” said Lucas Anstiss, Managing Director of Graintec Scientific.

With the instrument pre-programmed, the analysis is executed with only “one” button push – everything else is automatic.

The moisture meters have been specifically designed for the determination of water content. Combining coulometry with the Karl Fischer method, the AquaMax titrators determine the water content of samples by measuring the electrolysis current necessary to produce the required iodine – this is an absolute technique which does not require the calibration of reagents.

The unit is delivered ready for operation and the glassware pack, including electrodes, titration vessel, leads, syringe, printer paper, etc is supplied as standard.

Industry applications include testing and analytical laboratories, universities, R&D departments, and petrochemical, power (electricity), automotive, aviation, chemical and pharmaceutical industries.

The AquaMax is manufactured in the UK by GR Scientific. GR Scientific are a family-orientated company with expertise in coulometric Karl Fischer titration technology. They have been designing and manufacturing coulometric titrators for 30 years.

Graintec Scientific
Tel: (07) 4638 7677
Email: info@graintec.com.au
Web: www.graintec.com.au.


Gerhardt products in Australia

Perten Instruments (incorporating Newport Scientific), with its range of testing equipment for the food, feed, grain and flour industries, has signed an agreement with C. Gerhardt GmbH & Co, Germany. Perten will now provide applications, sales and service support exclusively for Gerhardt products in Australia and New Zealand. Perten Instruments manufactures testing equipment in Australia and Sweden for quality control, process monitoring and R&D for the grain, flour, food and feed industries. The Gerhardt range includes extraction software, and distillation, digestion, heating, shaking and combustion systems as well as fibre analysis.

Gerhardt reference testing equipment is suitable for use in developing and validating calibrations for the Perten range of laboratory and process control NIR analysers.

The DUMATHERM from C. Gerhardt provides fast, precise and cost-efficient combustion analysis of nitrogen according to the Dumas method. New furnace chamber design, combined with direct analysis of all resulting gases, provides results in 2–3 minutes.

Operation and control of the DUMATHERM is achieved using an external PC. Oxygen gas usage is minimised via software control of the combustion process. Combustion products are rapidly separated to reduce maintenance requirements and reduce the cost per analysis. The autosampler sample chambers are also rinsed with helium to ensure atmospheric gas cannot enter the combustion chamber.

The total amount of nitrogen in the sample is analysed during each measurement to a detection limit of 0.01 mg N absolute. The DUMATHERM meets the AOAC standard for protein determination in grain, meat and meat products, feed and malt, along with nitrogen analysis in soil and fertilisers.

Perten Instruments On-Line diode array NIR and camera analyser provide real-time, in process analysis for the grain, flour, food and feed processing industries. The analyser enables automatic process control, immediate manual intervention, faster start-up and grade changes and full traceability of the entire production.

The On-Line analyser is based on the Perten Instruments DA7200 on-bench analyser. Both instruments use the same calibrations and easy-to-use software, and share many aspects of operation and management. The On-Line analyser features a rugged vibration resistant design with explosion proof classifications according to ATEX and IECEx, and is equipped with an OPC server.

The combination of NIR and colour camera technology enables measurement of chemical parameters such as protein and starch damage, measurement of L, a and b values and detection of dark spots in flour, semolina and other powder products.

Raul Ovelar, Perten Instruments Australia
Tel: (02) 9979 6992
Fax: (02) 9979 6993
Web: www.perten.com


Automation in ion chromatography

Pressure to increase output while reducing costs requires laboratory automation wherever possible. Metrohm’s new 815 Robotic Soliprep claims to meet this demand as it allows complete automate preparation and analysis of liquid and solid samples in ion chromatography. It provides maximum flexibility as it can be customised on demand to meet individual customer’s specific requirements.

The 815 Robotic Soliprep is a state-of-the-art sample processor, which reliably transfers both liquid and solid samples to an ion chromatograph. A broad range of working steps such as pulverising, homogenising, extracting, filtering or diluting can be done by the 815 Robotic Soliprep and included in the analysis method. Due to the incorporation of in-line sample preparation into the analysis system, manual intervention is no longer required during the determination. The sample rack of the 815Robotic Soliprep is equipped with various inserts, sample beakers, syringe filters and needles and can be customised on demand to meet individual customer’s specifications. Combined with Metrohm’s advanced ion chromatographs, the 815 Robotic Soliprep opens up numerous new applications and application fields. Applications include, among others, the analysis of ingredients and contaminants in tablets, animal feed, sediments or food.

Further information is available at www.metrohm.com.

MEP Instruments Pty Ltd
Tel: (02) 9878 6900
Fax: (02) 9878 6999


Packaging testing systems

Since the beginning of 2010, IDM Instruments have released a number of instruments to test various parameters of packaging materials.

The Falling Dart Impact Tester covers the determination of the energy that causes polyethylene film to fail under specified conditions, with the impact of a free-falling dart. This energy is expressed in terms of weight (mass) of the dart falling from a specified height, which would result in 50% failure of specimens tested.

The instrument is manufactured with reference to international standards used for flexible films – ASTM D 1709, AS/NZS 4347.6, ISO 7765-1, JIS K7124 and GB 9639.

As specified in the standard, two test methods are achievable with the Falling Dart Impact Tester:

  • Test Method A: uses a dart with a 38.0 ± 1 mm diameter hemispherical head dropped from a height of 660 ± 1 mm. This method is generally used for films whose impact resistances require masses of about 50 g to 2 kg to fracture them.
  • Test Method B: uses a dart with a 50.0 ± 1 mm diameter hemispherical head dropped from a height of 1500 ± 3 mm. This method is generally used for films whose impact resistances require masses of about 0.3 kg to 2 kg to fracture them.

IDM Instruments, in conjunction with AMCOR Research and Technology, have also designed and manufactured the F0022 FLEXSEAL®, an advanced leak detection system designed for monitoring the seal performance of flexible and semi-rigid packages.

FLEXSEAL® was developed in response to an industry-wide need for improved quality assurance of packaged food and medical products. FLEXSEAL® is a useful tool for the manufacturer needing an airtight package, where protection of the internal product from environmental elements is necessary to ensure the end user of quality.

The unit provides the user with a valuable visual method of determining the integrity of the package and seal. The simple process is quick and easy to monitor the heat-sealing process in production. It allows rapid detection of failures, enabling early corrective action to be taken. It has adjustable air pressure and can be programmed for specific products.

The Crease Bend Tester for cardboard and corrugated cardboard produced by IDM Instruments can be used mainly to monitor scoring equipment to ensure box performance, by measuring the bending resistance of creased board at the time of folding at the crease. The maximum force required to bend the sample board is displayed on the digital display.

The Crease Bend Tester is claimed to be the only one of its kind that uses a pneumatic sample clamp to hold a 300 mm wide sample in place while a motorised load bar applies pressure to the sample on the other side of the crease.

Corrugated converters use the Crease Bend Tester to aid in making adjustments to improve the quality; thus ensuring the end user will have boxes that run effectively on their production line.

IDM Instruments
Tel: (03) 9708 6885
Fax: (03) 9708 6770
Web: www.idminstruments.com.au


Vacuum chamber for packaging testing

The VCC 1010 Vacuum Chamber from BCI Testequip in Belgium provides an affordable, non-destructive leak detection system for various packaging, both rigid and flexible. A fully sealed package, with or without modified atmosphere, preserves the durable quality of products and guarantees security.

Available in Australia and New Zealand through SI Instruments, the VCC consists of a transparent chamber with a pressure measuring system from 200 up to 1000 mBar. The vacuum chamber gives 360º visibility, and allows visual pinpointing of any leak, as well as being a convenient size – internal dimensions are 400 x 300 x 220 mm.

The operator friendly digital controller allows test routines to be pre-programmed and can store data from up to 10 000 tests. Test turn around time of multiple samples can be as low as 30 seconds.

Steve Doolan, SI Instruments
Tel: (08) 8352 5511
Email: steve@si-instruments.com
Web: http://si-instruments.com


At-line NIR Meat Analyser

NDC Infrared Engineering (www.ndcinfrared.com) demonstrated its simple-to-use InfraLab at-line NIR Meat Analyzer at IFFA 2010 in Frankfurt in May. IFFA is a leading trade show for the meat processing sector. At-line measurement using NDC’s proven NIR (Near Infrared) technology provides a rapid (less than 10 s) and accurate measurement of moisture, fat or protein in meat, without the need to send samples off for time-consuming laboratory analysis.
 
The unit can be calibrated to standard laboratory methods such as Gravimetric Oven or Karl Fischer for moisture, Soxhlet (for crude fat), Werner-Schmidt or Weibull Stoldt (for total fat), NMR (for fat) and Kjeldahl for protein. This ensures laboratory accuracy without the costs or the need to use the often hazardous chemicals associated with laboratory methods. In addition, the grab samples used by the InfraLab are much larger than those used by many laboratory techniques, making them more representative of the actual manufacturing process.

Easy to use, and with automated sample detection, the InfraLab requires no special user skills. As the unit uses NIR reflection, the InfraLab does not require contact with the product sample. The sample dish is placed on a turntable; the instrument automatically recognises that there is a sample and begins the analysis.

Measurement data can be stored in sthe instrument and/or downloaded to a PC at any time for in-depth analysis by tracking measurement values product by product over long time periods.

The agent for NDC Infrared Engineering in Australia is NSW-based B-R Control Pty Ltd (www.brcontrols.com.au).


New waterproof X-ray system

With IP-69K waterproof construction, the new X-ray inspection system IX-GA-DK series from Ishida can be used for meat, poultry, seafood and other food processors requiring wash down construction. With its unique construction, the new model is able to completely keep water from entering the X-ray machine and withstanding high-pressure water while it keeps high-inspection sensitivity. The X-GA-DK model contributes to hygiene management and food safety at manufacturing sites.

IP-69K rating requires that product in question must be able to withstand five bursts from a steam jet (80 to 100 bar at 80ºC ± 5ºC with flow rate of 14 to 16 L/min) held at angles of 0º, 30º, 60º and 90º from a distance of between 100 to 150 mm.

Ishida X-ray systems are available exclusively in Australia and New Zealand from Heat and Control.

Amber Crowley, Heat and Control
Tel: (07) 3877 6387
Email: info@heatandcontrol.com
Web: heatandcontrol.com


New mozzarella cooker stretcher

GPiCS is GoldPeg’s (www.goldpeg.com) new innovative and flexible ‘dry’ cooker stretcher for mozzarella. The cooker produces sensitive natural mozzarella and pasta filata varieties continuously with no cook water.

The GPiCS is a direct steam injection system that was specifically developed by GoldPeg, who specialise in direct steam injection cooking and processing technology, with the support of an Australian Government grant and extensive testing at CSIRO Australia. The unit is a low pressure, low shear, direct steam injection continuous cooking system which responds to the needs of sensitive natural mozzarella and pasta filata specifications. Its flexibility allows it to produce of a full range of natural mozzarella, string cheese and pasta filata varieties. The system is also sensitive to the environmental/effluent pressures on food manufacturers.

GoldPeg claims that their innovative ‘dry’ cooker stretcher produces high quality natural mozzarella and pasta filata with identical composition, sensory and functionality to a traditional wet cooker product.

The GPiCS cooker stretcher will be launched at ITCE, International Cheese Technology Expo, on 20–22 April 2010 in Wisconsin, USA (www.cheeseexpo.org).


Detecting antibiotic residues in milk

Arrow Scientific (www.arrowscientific.com.au) has introduced the ROSA® (Rapid One Step Assay) platform for dairy testing. The ROSA platform is based on dedicated ‘litmus like’ strip tests that can be read with a small ROSA reader. Milk testing for antibiotic residues can be performed in a matter of minutes.

This antibiotic test involves adding the milk to the MRL-3 test strip, incubating for three minutes and reading the result on the ROSA reader. The reader stores results electronically for record keeping and reporting.

For the Australian dairy industry, the ROSA MRL tests provide the closest match Australian/Codex Maximum Residue Limits.

ROSA tests are promoted as being convenient for farmers, field personnel, veterinarians, haulers, milk receivers and lab personnel.

Value is added to testing programs with data acquisition software, bar-coded test strips and RFID/key FOB integration to strengthen data security and traceability.

In addition to B-lactam, other ROSA test kits that can be run on the same equipment include tetracyclines, sulphonamides, chloramphenicol, enrofloxacin, streptomycin and aflatoxin M1 (quantitative).

ROSA has been adopted by global dairy companies such as Fonterra NZ. In the in-transit testing programs implemented by Fonterra NZ, the tanker driver draws a composite sample from the tanker after the last farm pick-up, starts the ROSA MRL test, and drives to the plant. The in-transit incubator is equipped with an automatic shut-off feature so the results are stabilised at the end of the incubation time. The completed test strip is read in seconds at the plant, thereby reducing turnaround time at milk intake and expediting production of a safe, wholesome and quality product.


Raw milk screening

FOSS has extended the availability of software functionality that helps to detect adulterated raw milk.

The software allows MilkoScan™ analysers based on Fourier Transform Infrared (FTIR) technology to be programmed to give a warning of possible abnormalities in raw milk samples. MilkoScan instruments are already used around the world to check raw milk for payment and quality assurance purposes.

Raw milk containing abnormalities is a growing international problem. The abnormalities can be caused by deliberate adulteration, eg with lard or melamine or by accident, eg if milk from cows and buffalo are mixed.
Previously, the softw MilkoScanFT 120are functionality was only available for the FOSS analyser. It is now provided as part of the Foss Integrator software supporting FOSS dairy analytical solutions.

The ability to program analysers used in routine testing operations allows users to adopt a screening approach to incoming raw milk samples.
The programmed analyser does not identify specific contaminants, but helps to identify a suspect raw milk sample quickly and as a normal part of everyday testing. The suspect sample can then be further analysed to determine the contaminant.

The system works by monitoring the results of analysis performed using infrared spectroscopy. Looking at raw milk from a spectroscopic point of view, natural raw milk has a particular spectrum – a unique fingerprint. It is possible to program an infrared spectroscopy analyser to recognise the spectra (or fingerprint) representing normal milk. A warning is then given when samples do not match the fingerprint.

“The screening approach is a powerful tool in tackling milk adulteration, whether this occurs by accident or on purpose. With this screening option, quality assurance people can quickly check for many different types of adulteration and with no extra time or cost per routine test,” said FOSS dairy market manager Dorthe Bisgaard.


Measuring product volume

The Volscan Profiler from Arrow Scientific (www.arrowscientific.com.au) is a benchtop, laser-based instrument which allows manufacturers to measure the volume of a product. This provides information relating to the inherent qualities of the product, which in turn affects consumer perception of the finished product.

For example, insufficient loaf volume at the test stage indicates either very weak or very strong flour, or an imbalance of enzyme activity. Higher volume tends to be associated with more aerated crumb and superior texture and consumers believe they are getting more for their money.

This information is then used to modify the dough mix, so that the final product can be properly handled by automatic slicing machines, and packed into standard-sized bags. The Volscan Profiler claims to speed up this process, so that the optimum dough mix can be achieved rapidly and efficiently.

Previous methods to calculate dough volume include seed displacement, in which the amount of rape seed or pearl barley packed around the loaf in a standard container is measured. This method is time consuming and unreliable due to seed clumping, moisture absorption and potential crushing of the product.

The Volscan Prolifer, however, provides a non-contact method, the results of which can be obtained rapidly and accurately.

The test sample is easily located at each end onto the mounting device. The item is then weighed and an eye-safe laser device scans vertically to measure its contours at selectable intervals whilst it rotates. This assessment can take from a few seconds to a few minutes, depending upon the chosen interval and the preferred precision.

Upon completion, the following measurements can be quickly determined: bread volume, length, maximum width, maximum height, height of the maximum width and width of the maximum height.

These numbers are then further manipulated to automatically calculate and display the volume yield of the bread based on the weight of the flour used (volume/100 g flour). All measurement data is saved in spreadsheet files for easy access and analysis. The scanned data can be viewed in both 2D and 3D representations to allow comparisons with previous archived measurements.


Flowmeter for in-line viscosity measurement

In many process industries, the accurate measurement of viscosity is crucial to the quality of the product. Measuring viscosity directly in the process provides the real-time process conditions. This method eliminates the costly process delays typically associated with transferring samples to the lab. Endress+Hauser’s second generation of the Promass I Coriolis flowmeter, delivers in-line viscosity measurement as well as improved specifications of mass flow, density and temperature measurements.

Dual-mode and modified Torsion Mode Balance (TMB) are both significant enhancements to the application of the Coriolis principle which are key to the higher functionality and accuracy of the Promass I. The flowmeter’s patented TMB counterbalance system improves the specifications for both mass flow and zero point stability. Its robust design and fully balanced system ensure that it is not influenced by plant vibration and temperature shocks; maintaining an accuracy of 0.1% even during CIP/SIP cleaning periods.

The dual-mode makes the new Promass I the first commercial Coriolis mass flowmeter to use two simultaneous resonant frequencies of 600–700 Hz for mass flow and 900 Hz for viscosity measurement. This specifically eliminates the adverse effects of air entrainment on the viscosity measurement, providing higher accuracy and increasing the range of reliable applications.

The meter’s design complies with industry specific requirements. For example, IEC Ex approvals for explosion hazard areas, or compliance with the hygienic standards of 3A, EHEDG and FDA, which make it suitable for healthcare, food and beverage applications. The integrated software package provides users with derived measurements such as Brix, fat content, suspended solids, Baume, degrees Plato and percentage of alcohol.

By providing precise and reliable real-time viscosity measurements the new Promass I enables process quality improvements and cost efficiencies, whilst the improved specifications of mass flow, density and temperature measurements set new performance benchmarks for the Coriolis principle.

Endress+Hauser Australia
Tel: (02) 8877 7000
Fax: (02) 8877 7099
Web: www.au.endress.com


TurbiCheck white light turbidity meter

New from Lovibond is the TurbiCheck WL White Light Turbidity Meter!

The TurbiCheck WL allows easy turbidity measurement in either the field or laboratory. Using a white light source and 90° detection, the TurbiCheck WL meets the specifications for EPA turbidity measurement (US EPA Standard 180.1).

A power efficient micro-circuit design allows the instrument to yield 5000 tests on 4-AA alkaline batteries with an estimated 7–10 year bulb life. The instrument features Auto-Ranging, automatically selecting the correct turbidity range for your sample.

Calibration is simple with the included calibration standards. The instrument comes with all required items for testing including the TurbiCheck WL turbidity meter, sample cuvettes, batteries, calibration standards, manual and carrying case.

TurbiCheck WL highlights
Features of the TurbiCheck WL are:

  • Ideal for regulatory monitoring, process control or field use
  • Simple operation
  • Easy calibration
  • Auto-Ranging
  • Meets USEPA

TurbiCheck WL specifications
The specifications are:

  • Range: 0.01–1100 NTU
  • Accuracy: ± 2% Full Scale or 0.01 NTU (0–500 NTU)
    ± 3% Full Scale (500–1100 NTU)
  • Resolution: 0.01 NTU to 100.0 NTU
    0.1 NTU from 100.0 to 999.9 NTU
    1.0 NTU from 1000 to 1100 NTU

The Australian distributor is:
Labtek Pty Ltd
PO Box 5316 Brendale, QLD 4500
Tel: 1300 881 318
Fax: 1300 881 513
Email: sales@labtek.com.au
Web: www.labtek.com.au


New freezer proof RFID tags

Peacock Bros. (www.peacocks.com.au) now supply UPM Raflatac freezer proof RFID tags designed to operate reliably within freezer environments down to –40°C.

The Dogbone RFID tag design offers up to 240-bit of EPC memory and an additional 64-bit locked tag identifier code and 32-bit serial number. It has a printable white synthetic face that can be printed over with an RFID thermal transfer label printer for encrypting and printing of user readable information.
The tags can be read through a covering of frost, humid air and wet surfaces such as packaging and ice and complies with all of the GS1 EPC Global standards. This latest RFID tag from UPM Raflatac has already been trialled overseas within frozen goods distribution centres.

The RFID tags can be placed on pallets, cartons and even product packaging and does not require “line-of-sight” to be read. If RFID readers are installed onto the forklifts, then the entire process of receiving, dispatching and storing of frozen goods can be automated. This system eliminates data errors from manual input, provides a platform for instant real-time locating of products and product movement information and reduces labour costs.


Thermal mass flow meter for carbon dioxide applications

The ST75 Flow Meter from Fluid Components International (FCI) claims to deliver precise direct mass flow measurement of gases in an easy to install insertion style instrument that requires almost no maintenance over a long life.
It is suitable for the measurement of CO2 in a variety of industrial applications including the bottling of beverages such as soda drinks, beer and sparkling wine.

The ST75 Flow Meter is designed for demanding process industry plant environments. The meter is designed for line sizes from 6 to 51mm and provides three unique outputs: the mass flow rate, totalised flow and media temperature.

With accuracy to ±1% of reading and ±0.5% repeatability, the ST75 meter’s design includes media temperature compensation to ensure performance under variable process and plant temperature conditions. Its precision flow element has a no-moving parts design that employs platinum RTD sensors embedded in equal mass thermowells with microprocessor electronics that can be calibrated to laboratory standards for CO2 as well as many other gases.

The ST75 Flow Meter operates over a wide flow range, from 0.01 to 950 NCMH depending on line size, which makes it equally well suited for low flow and high flow applications. For variable process conditions, the ST75 is factory preset to a wide turndown range at 10:1 to 100:1.

Developed with FCI’s thermal dispersion technology, the ST75 provides direct-flow measurement for more accurate performance at a lower cost by eliminating the need for temperature sensors, flow computers, or other devices that are required with orifice plates, Venturis, Vortex shedding and other meters. Its no-moving parts feature is designed to ensure superior service life. There are no orifices or inlets to clog or foul, which significantly reduces scheduled maintenance and unplanned shut-downs.

The ST75 Flow Meter’s standard outputs are fully scaleable 4–20mA and 0–10V. They are user assignable to flow rate and/or temperature and a 0–1kHz pulse output of total flow. The instrument can be ordered for input power with either 18 to 36 Vdc or 85 to 265 Vac, with or without a built-in LCD digital display.

The ST75 is enclosed in a rugged, all-metal, dust and water resistant NEMA Type 4X (IP66) rated package designed for hazardous area installations.

AMS Instrumentation & Calibration Pty Ltd
Tel: (03) 9017 8225
Email: sales@ams-ic.com.au
Web: www.ams-ic.com.au


 

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