4. AOACRIMicroMethods-2018Awards

63

672 B ird et al .: J ournal of AOAC I nternational V ol . 99, N o . 3, 2016

Figure 4. Youden plots for 3M Petrifilm RAC Plate and SMEDP results for instant NFDM.

There were no statistically significant differences between the 3M Petrifilm RAC Plate and FDABAM methods as determined by the 95% CI of the differences of means at any of the three contamination levels.

was noted and it was determined that the data would be included in the statistical analysis. There were no statistically significant differences between the 3M Petrifilm RAC Plate and SMEDP methods as determined by the 95% CI of the differences of means at any of the three contamination levels.

Pasteurized Skim Milk

Instant NFDM

Pasteurized skim milk test portions were evaluated at a low, medium, and high contamination level for the presence of naturally occurring aerobic bacteria. Fifteen laboratories participated in the analysis of this matrix, with 13 laboratories submitting data. For the SMEDP high contamination level, one outlier laboratory was identified by the Cochran’s tests for outliers. However, no evidence of physical cause or suspicion of cause

Instant NFDM test portions were evaluated at a low, medium, and high contamination level for the presence of naturally occurring aerobic bacteria. Fifteen laboratories participated in the analysis of this matrix, with 15 laboratories submitting data. For the 3M Petrifilm RAC Plate low contamination level and for the SMEDP medium contamination level, one outlier laboratory was identified by the Cochran’s tests for outliers.

Figure 5. Youden plot for combined mean 3M Petrifilm RAC Plate and FDA BAM results for raw easy-peel shrimp evaluated at 32°C.

03/10/2019