4. AOACRIMicroMethods-2018Awards

996 B ird et al .: J ournal of aoaC i nternational V ol . 99, n o . 4, 2016

20

Figure 3. POD values of candidate method versus reference method for creamy peanut butter.

and peanut butter test portions. Additional identification work was conducted on these isolates at the collaborating laboratories and the coordinating laboratory. For the raw ground beef, the isolates recovered from Laboratories 3, 12, and 16 all serotyped as a different serovar from the inoculating culture, possibly indicating the presence of low- level contamination of Salmonella in the matrix that was not detected during the initial background screen. For peanut

Discussion

Although one laboratory experienced issues with the lysis procedure, no negative feedback was provided by the collaborating laboratories in regard to the performance of the 3M MDA 2 – Salmonella method. During the evaluation, a small number of laboratories recovered Salmonella in their uninoculated control data for both the raw ground beef

Figure 4. dPOD values of candidate method versus reference method for creamy peanut butter.

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