Food In Canada


Express Salmonella detection

A new system from 3M Food Safety is its 3M Petrifilm Salmonella Express System, a new pathogen detection technology

St. Paul, Minn. – 3M Food Safety has launched the 3M Petrifilm Salmonella Express System, a new pathogen detection technology.

The company says the system is focused on Salmonella, which comprises nearly half of all pathogen testing.

And it has already received Performance Tested Method (PTM) validation (Certification Number 061301) from AOAC Research Institute. The 3M Petrifilm Salmonella Express System was found to be equivalent to or better than the reference methods for raw ground chicken, pasteurized liquid whole egg, raw ground beef, raw ground pork, cooked chicken nuggets, frozen uncooked shrimp, fresh bunched spinach, dry dog food and stainless steel.

The new system provides a shorter time-to-result, more uniform results and a longer shelf life than the conventional agar methods. It provides detection and biochemical confirmation of Salmonella in enriched food and food process environmental samples, including dairy, fruits and vegetables, raw meat, seafood and pet food. Results can be available in as little as 44 hours.

The company says the system is easy-to-use and offers an all-in-one method. First, the 3M Petrifilm Salmonella Express Plate is a sample-ready, chromogenic culture medium that is specific to Salmonella and provides a presumptive result.

Next, the 3M Petrifilm Salmonella Express Confirmation Disk contains a substrate that facilitates the biochemical confirmation of all presumptive positive Salmonella colonies on the plate in just four hours.

By way of comparison, when food processors outsource sample testing with a third-party contract lab, they’ll commonly wait 24-72 hours for confirmation and pay a nominal amount for each presumptive positive colony requiring confirmation.

The new system was created to offer users an accurate, fast, simple and affordable solution, says the company.