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Method extension for second DuPont X5 PCR assay

BAX System X5 PCR Assay for L. monocytogenes

DuPont’s BAX System X5 PCR assay for Listeria monocytogenes has received a method extension from the AOAC.

It has been approved as a method extension of AOAC Research Institute (AOAC-RI) Performance Tested Method.

The certification covers analysis of sample types including raw and ready-to-eat meats, cheese, dairy products, seafood, fresh produce and environmental surfaces.

DuPont’s Salmonella assay received the same certification recently.

The BAX System X5 handles 32 samples compared to the 96 sample capability of the Q7 system.

The firm said Listeria monocytogenes is a notable public health concern due to its ability to cause serious infection if a person eats contaminated food.

Rob McPheeters, Diagnostics global business leader, DuPont Nutrition & Health, said this increased concern has focused attention on the need for well-validated pathogen detection methods in the food processing environment.

“At DuPont Diagnostics, we are proud to offer a variety of validated PCR assays to help food manufacturers, service laboratories and retailers detect L. monocytogenes and other Listeria strains with speed, accuracy and reliability in a way that best fits a company’s workflow.”

Additional validations are in progress for PCR assays to detect E. coli O157:H7 and Listeria species.

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