WILMINGTON, Del. -- DuPont Qualicon has announced that its BAX system for detecting listeria has been certified Performance Tested Method No. 030502 by the AOAC Research Institute of Gaithersburg, Md.
Validation studies compared BAX system performance to the standard culture method used by the USDA Food Safety & Inspection Service, which requires a 48-hour dual enrichment and manual plating. AOAC-RI found that the automated BAX system performed as well as the culture method for detecting listeria species on environmental surfaces such as plastic, ceramic, rubber, concrete, wood, cast iron and air filter material. Also, proprietary BAX system media combines a single enrichment step with shorter incubation times, so that results are available about 30 to 33 hours after sampling.
"Labs that need third-party endorsement have been waiting for this approval," Kevin Huttman, president of DuPont Qualicon, said. "Now they can start saving time and money with the simplified enrichment and next-day results of the BAX system."
The BAX detection system is a DNA-based technology for screening raw ingredients, finished products and environmental samples for pathogens or other organisms, company officials said.
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