3M Molecular Detection Assay Listeria method

3M’s Molecular Detection Assay Listeria method has received a matrix extension for select food through the AOAC Research Institute’s Performance^SM Tested Methods Program from the AOAC Research Institute.

An expansion of the prior PTM certification from AOAC-RI (PTM Certification #081203), the Listeria method is now certified for the detection of Listeria spp. in select food matrices, providing greater applicability of the method for food and beverage processors. In recent years, several large outbreaks of listeriosis have been linked to contaminated manufactured foods ranging from vegetables to milk to meat.

The matrix extension of AOAC-PTM status required a rigorous, independent laboratory examination of the 3M molecular test method’s ability to accurately detect Listeria spp. within a variety of intentionally contaminated food matrices. Select food matrices specifically analysed during the testing process included cantaloupe, spinach, cottage cheese, beef hot dogs, deli-style turkey meat and cold smoked salmon. No statistically significant differences were found in the sample results between the 3M Molecular Detection Assay Listeria when compared to conventional reference methods.

The 3M Molecular Detection System is based on isothermal DNA amplification and bioluminescence detection technologies and is designed around modern-day food processors’ need for a real-time pathogen detection approach that is faster and simpler while also more accurate.