A poster by Thermo Scientific presented ay the 2022 IAFP Conference in August showed validation methods of the company’s SureTect Listeria monocytogenes and Listeria species PCR Assays, which led to AOAC recognition for official method of first action.

For the unpaired collaborative study, Evangelos J Vandoros, et al, compared the SureTect Listeria PCR Assays Method to the method outlined in the FDA-Bam Chapter 10. The matrix used for the study was full-fat cottage cheese with a test portion of 25g.

The researchers validated both SureTect Listeria PCR Assays (Listeria species and Listeria monocytogenes) in this study, as they follow the same method protocol and are validated for the same matrices.

Outcomes showed consolidated dLPOD data from 12 collaborators for the SureTect Listeria PCR methods and the FDA-BAM Chapter 10 reference method. The data was within confidence intervals showing that there was no significant difference between the SureTect methods and the reference method. The time to result was less than 24 hours.

Based on these findings, the SureTect Listeria monocytogenes and Listeria species PCR Assays were both granted AOAC Official Methods First Action

The validated categories for the assays include milk and dairy, fresh produce, seafood, raw meat, ready to eat/reheat and environmental,