Specialised solutions for in-house food testing NZMS Scientific’s range of products provide fast results and greater convenience. Reducing time to product release, reducing labour costs, or preventing contamination of product are just some of the benefits our range can provide. www.foodtechnology.co.nz 21 the genomic islet that acts as a lifesaver for certain Listeria monocytogenes strains in these situations. “We were able to assign a function to the two genes,” she says. “The first gene is a transcriptional regulator, which in certain situations regulates the frequency and activity of the second protein. The second is a protease, an enzyme that breaks down other proteins. Proteases help bacteria break down unfunctional proteins that are created during stress situations.” Study director Kathrin Rychli says the two genes make up a functional unit, specifically the stress survival islet SSI-2 which is predominantly found in L. monocytogenes strains that are specialised for food and food processing environments. “We were able to identify a specific genome type in which the SSI-2 sequence is always present,” she says. “This sequence type, ST121, is found almost exclusively in food and the food processing environment and hardly ever in clinical isolates. In strains forming part of the ST121 group, SSI-2 is highly conserved. SSI-2 thus appears to be niche-specific, and through the discovery of the new stress survival island, the researchers were able to describe an important survival strategy of foodborne Listeria. Knowing the genetic mechanism, allows you to think about new strategies for food safety,” Rychli says. Easy organism detection and counting • Ready to use system for microbial testing on food, beverages, cosmetics & raw materials • Self diffusing media • Simple to pick colonies for subculturing • Rapid easy read-out of results LICENSE NUMBER 011404 Integrated solution for pathogen detection • Speed - over 100% faster than conventional cyclers • Simplicity - designed to be simple, flexible and easy to run • Specificity - use of patented primer probes • Sensitivity - innovative immunomagnetic sample preparation For more information, please contact us on 09 259 4062 or nzms@nzms.co.nz nzms.co.nz Sterility testing utilising bioluminescence technology • Rapid microbial control for your products • No sample preparation required • 2 days incubation • Automated data analysis • Up to 96 samples within 45 min • Easy to use software • Intelligent reagent tracking • Secure data base FT390
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