4. AOACRIMicroMethods-2018Awards

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778  B ird et al . : J ournal of AOAC I nternational V ol . 98, N o . 3, 2015

Table 6. Total yeast and mold log 10 counts for raw almonds by 3M Petrifilm RYM Count Plate after 48 h incubation at 25 ° C versus FDA BAM (ref. 1) and ISO 21527 (ref. 4) reference methods a Uninoculated control Low Medium High Petrifilm RYM FDA BAM/ISO 21527 b Petrifilm RYM FDA BAM/ISO 21527 Petrifilm RYM FDA BAM/ISO 21527 Petrifilm RYM FDA BAM/ISO 21527 Lab A c B A B A B A B A B A B A B A B 1 <1.00 <1.00 1.00 d <1.00 1.30 1.30 1.78 1.85 1.60 1.30 2.28 1.95 1.78 e 1.90 e 2.04 f 2.40 f 2 1.30 d 1.00 d 1.30 d 1.85 d 1.78 1.60 2.04 1.70 1.30 1.90 2.11 2.34 1.95 e 2.15 e 2.64 2.84 3 <1.00 <1.00 <1.00 <1.00 1.30 1.30 1.60 1.60 2.34 2.28 2.38 2.18 3.56 3.11 3.30 3.11 4 g NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 5 <1.00 <1.00 <1.00 <1.00 1.30 1.00 1.78 1.95 2.30 2.15 2.30 2.45 3.41 3.04 3.18 3.18 6 <1.00 <1.00 <1.00 <1.00 1.48 1.30 2.20 1.78 1.00 h 2.00 h 2.34 2.20 3.08 3.15 3.36 3.28 7 <1.00 <1.00 <1.00 <1.00 1.78 1.30 1.70 1.30 2.45 2.20 2.43 2.11 3.20 2.90 3.20 3.11 8 <1.00 <1.00 <1.00 <1.00 1.85 1.95 1.00 1.00 2.49 2.45 2.00 2.08 3.26 3.51 3.00 3.08 9 <1.00 <1.00 <1.00 <1.00 1.30 1.30 1.48 1.00 2.53 2.46 2.56 2.53 3.08 3.00 3.04 3.00 10 <1.00 <1.00 <1.00 <1.00 1.30 1.00 1.30 1.00 2.08 2.43 2.00 2.56 3.26 3.11 3.30 3.04 11 <1.00 <1.00 <1.00 <1.00 1.00 1.48 1.48 1.60 2.00 2.08 1.95 1.90 3.08 3.04 3.15 3.08 12 <1.00 <1.00 <1.00 <1.00 1.60 1.78 1.30 1.00 2.08 2.30 2.00 2.00 3.60 3.36 3.40 3.08 13 <1.00 <1.00 <1.00 <1.00 1.48 1.30 1.48 1.30 2.00 2.20 1.78 1.95 2.90 2.90 2.90 2.95 14 <1.00 <1.00 <1.00 <1.00 1.48 1.60 1.70 1.78 2.45 2.23 2.76 2.08 3.43 3.00 3.40 3.23 15 <1.00 <1.00 <1.00 <1.00 1.78 1.70 1.78 1.85 2.45 2.26 2.45 2.30 3.23 2.90 3.41 3.41 a  Log 10

yeast and mold CFU/g. b  FDA BAM and ISO 21257 reference method replicates were enumerated at 5 and 7 days (uninoculated test portions) of incubation at 25 ° C. c  A and B = Indicated duplicate test portions. d  Data not included in statistical analysis for this contamination level. e  Double Grubbs’ outlier. f  Single Grubbs’ outlier. g  Laboratory data not included in statistical analysis for all contamination levels. h  Cochran’s outlier.

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