Food Protection Trends - November 2009 - 813

Industry Products assess if the correct Nisaplin® levels are present in each food batch. Malene Svejstrup, application scientist at Danisco explained: “It is important to have the correct dosage of Nisaplin® in the foods we test. If it is too low, it could result in a reduced shelf life of the food. We have been manually measuring inhibition zones with callipers to test Nisaplin® levels for 25 years at Danisco. This method can introduce many variations and results can differ from person to person, which is why we are validating an automated zone sizer to determine if it is a good alternative.” Mrs. Svejstrup continued,“To date, the system has generated promising results and we can measure the zones in half the time it used to take when we were performing manual measurements.” Martin Smith of Synbiosis stated, “Ensuring the quality of food is very important and we are excited that one of the food ingredients companies has chosen to use an AutoZone to standardize a critical food test. Danisco’s validation studies with the AutoZone show that microbiologists can save time, while achieving accurate and reproducible results, making the AutoZone an essential tool for testing the activity of bacteriocides in any food manufacturing facility.” Synbiosis 301.662.2863 Frederick, MD www.synbiosis.com BAX® System MP Enrichment Media Approved by AOAC for Both E. coli O157:H7 and Salmonella Testing he AOAC Research Institute has approved the use of BAX® System E. coli O157:H7 MP enrichment media for Salmonella testing. Validated on ground beef, beef trim, spinach and lettuce, the BAX® System performed as well as or better than traditional culture methods for detecting Salmonella, but with quicker time to result. The MP enrichment media was originally designed for use with the BAX® System assay for detecting E. coli O157:H7 in ground beef and beef trim. Recently, AOAC RI extended certification of that assay to also include lettuce and spinach. This means that the identical MP enrichment protocol has been approved by AOAC RI for both Salmonella and E. coli O157:H7 testing of those foods. “Customers can now use the same 8-hour enrichment to test certain types of meat and fresh produce for two different pathogens,” said Linda Peng, research microbiologist – DuPont Qualicon. “This will not only save hands-on time, but the single medium will also reduce inventory and storage costs for food companies.” Food processing companies around the world rely on the BAX® system to detect pathogens or other organisms in raw ingredients, finished products and environmental samples. The automated system uses leading-edge technology, T Synbiosis Danisco Uses AutoZone Automated Zone Sizing System to Ensure Foods are Consistently Protected against Pathogenic Bacteria ynbiosis, a manufacturer of automated microbiological systems, has announced that international food ingredients company, Danisco is using an AutoZone, automated zone measurement system to reproducibly predict the efficacy of Nisaplin®, a natural bacteriocide which inhibits growth of pathogenic and food spoilage Gram-positive bacteria in food. Microbiologists at Danisco’s Food Protection Division in Denmark liquidize different food samples containing Nisaplin®. They plate them out on 35 cm glass plates of Iso-Sensitest Agar seeded with Micrococcus luteus. The Nisaplin® in the food produces 64 zones of inhibition on each plate, which scientists at Danisco can rapidly measure and analyze using the AutoZone system. From the zone size data, they can S Be sure to mention, “I read about it in Food Protection Trends”! The publishers do not warrant, either expressly or by implication, the factual accuracy of the products or descriptions herein, nor do they so warrant any views or opinions offered by the manufacturer of said articles and products. NOVEMBER 2009 | FOOD PROTECTION TRENDS

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Food Protection Trends - November 2009

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