Thermo Fisher Scientific Announces Same Day Results for Environmental Listeria with DuPont Qualicon BAX® System Listeria Assay
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Posted: 27 September 2010 | Mackintosh Lloyd Ltd | 1 comment
Thermo Fisher Scientific, announced the DuPont Qualicon BAX® System Listeria Assay…
Thermo Fisher Scientific, announced the DuPont Qualicon BAX® System Listeria Assay...
Thermo Fisher Scientific, the world leader in serving science, today announced that the DuPont Qualicon BAX® System Reverse Transcriptase 8-hour Listeria Assay is now available alongside the Oxoid range in Europe, Canada, Australia and New Zealand. The assay allows food companies to detect environmental Listeria spp. in less than 8 hours – saving more than two days on traditional detection methods and allowing problems to be swiftly identified, ultimately helping companies avoid product recalls and processing line shutdowns.
![Oxoid Ref 373 BAX 8 hr Listeria Oxoid Ref 373 BAX 8 hr Listeria](http://www.newfoodmagazine.com/wp-content/uploads/Oxoid-Ref-373-BAX-8-hr-Listeria-300x233.jpg)
![Oxoid Ref 373 BAX 8 hr Listeria Oxoid Ref 373 BAX 8 hr Listeria](http://www.newfoodmagazine.com/wp-content/uploads/Oxoid-Ref-373-BAX-8-hr-Listeria-300x233.jpg)
Food companies can detect environmental Listeria spp. in less than 8 hours with the DuPont Qualicon BAX® System Reverse Transcriptase 8-hour Listeria Assay.
With the new BAX® System 8-hour Listeria Assay, results from environmental samples can be available the same day they are taken. If the result is positive, there is only a limited amount of production to be concerned about, meaning the problem can likely be identified and resolved before the next shift begins. This speed is of particular value to manufacturers of short shelf-life, ready-to-eat products including chilled meals, cooked meats, smoked fish, bagged salads and dairy products.
This reverse-transcriptase PCR assay allows for detection of Listeria at concentrations as low as 10 CFU/ml. Samples do not require the normal enrichment period which can range from one to several days. Listeria cells are simply resuscitated by incubation in a specific collection buffer for just four hours. Then, following a short reverse transcriptase step which gives a ‘jump-start’ to the PCR replication process, samples are loaded into the BAX® System cycler/detector for processing. Results are automatically interpreted by the systems’ user-friendly software and displayed on screen using positive (red) or negative (green) icons.
In validation studies, the performance of the BAX® System 8-hour Listeria Assay was superior to the reference USDA FSIS culture method in the detection of Listeria from stainless steel surfaces.
Using a panel of 58 Listeria strains, across the 7 species of Listeria, and 52 non-Listeria strains, the assay demonstrated 100 percent inclusivity and exclusivity. The BAX® System 8-hour Listeria Assay has been approved and certified by the AOAC Research Institute (AOAC RI Performance Tested Method number 030801).
For further information about the BAX® System and assays available from Oxoid in Europe, Canada, Australia and New Zealand, please contact your local Oxoid representative or Val Stroud by phone +44 1256 841144, fax +44 1256 329728, email [email protected] or visit www.oxoid.com.
Oxoid is part of Thermo Fisher Scientific Inc., the world leader in serving science.
Dear
we are interested in the Thermo Fisher Scientific Environmental Listeria with DuPont Qualicon BAX® System Listeria Assay
kind regards
Herman Storme