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Viewing Listeria monocytogenes

Maximimizing Technology Advancements in Environmental Testing

This article was published in the December 2016/January 2017 edition of Food Quality & Safety magazine.

The U.S. FDA is now exercising its judicial powers to bring federal criminal charges against food processors/manufacturers, their management and employees for food safety violations and non-compliance under the Food Safety Modernization Act (FSMA). There are significant technology advancements in pathogen detection and testing that greatly enhance the ability of food processors/manufacturers to reduce the “time-to-results” without compromising accuracy, have higher throughput and maximize operational efficiencies, and obtain test results within a production shift while improving the efficiency and efficacy of the their sanitization program. Combining superior enrichment media and testing systems is a critical first line of defense in protecting a company’s brand, its management and employees, and most importantly, its consumers.

Fast Detection of Listeria monocytogenes in Deli Meat and Dairy Products

Poster Presentation at the 2016 IAFP Annual Meeting in St. Louis, Missouri held July 31 to August 3, 2016

Introduction:  The ability of L. monocytogenes to proliferate in various foods at refrigeration temperatures and survive even after deep freezing makes the occurrence of this foodborne pathogen in ready-to-eat (RTE) foods of particular concern. It is especially threatening to the deli meat and dairy industries if fast and reliable detection methods are not applied. Since L. monocytogenes in RTE food can be present at low concentration with sub-lethal injury during food processing, an enrichment step is crucial to resuscitate injured cells and allow sufficient growth for detection.

Objective:  This study was to validate a sensitive and rapid method for L. monocytogenes detection in deli meat and dairy products.

Presenting Authors:

FoodChek Laboratories:  Dr. Sergiy Olishevskyy, Cathy St-Laruent, Melissa Buzinhani, Michael Giuffre

DuPont Nutrition & Health:  Morgan Wallace