417 / 1195
Page
15
of
38
value of 0.60 was obtained with 95% confidence intervals of (0.39, 0.78). A dPOD
CP
value of 0.00 with 95%
confidence intervals of (-0.28, 0.28) indicating no statistical difference between the candidate method presumptive
and confirmed results.
For the high inoculation level there were 5 presumptive and confirmed positives for the candidate method and 5
confirmed positives following the reference method. A POD
C
and POD
R
value of 1.00 was obtained with 95%
confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with 95% confidence intervals of (-0.43,
0.43), indicating no statistical difference between the candidate and reference method. A POD
CP
value and a POD
CC
value of 1.00 was obtained with 95% confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with
95% confidence intervals of (-0.43, 0.43), indicating no statistical difference between the candidate method
presumptive and confirmed results.
Pasteurized American Cheese
For the low inoculation level, there were 16 presumptive and confirmed positives for the candidate method and 13
confirmed positives following the FDA/BAM reference method. A POD
C
value of 0.80 was obtained with 95%
confidence intervals of (0.58, 0.92). A POD
R
value of 0.65 was obtained with 95% confidence intervals of (0.43,
0.82). A dPOD
C
value of 0.15 was obtained with 95% confidence intervals of (-0.12, 0.40) indicating no statistical
difference between the candidate and reference method. For the low inoculation level a POD
CP
value and a POD
CC
value of 0.80 was obtained with 95% confidence intervals of (0.58, 0.92). A dPOD
CP
value of 0.00 with 95%
confidence intervals of (-0.25, 0.25) indicating no statistical difference between the candidate method presumptive
and confirmed results.
For the high inoculation level, there were 5 presumptive and confirmed positives for the candidate method and 5
confirmed positives following the reference method. A POD
C
and POD
R
value of 1.00 was obtained with 95%
confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with 95% confidence intervals of (-0.43,
0.43), indicating no statistical difference between the candidate and reference method. A POD
CP
value and a POD
CC
value of 1.00 was obtained with 95% confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with
95% confidence intervals of (-0.43, 0.43), indicating no statistical difference between the candidate method
presumptive and confirmed results.
Dry Pet Food - 375 g
For the low inoculation level, there were 7 presumptive and confirmed positives for the candidate method and 5
confirmed positives following the FDA/BAM reference method. A POD
C
value of 0.35 was obtained with 95%
confidence intervals of (0.18, 0.57). A POD
R
value of 0.20 was obtained with 95% confidence intervals of (0.11,
0.47). A dPOD
C
value of 0.10 was obtained with 95% confidence intervals of (-0.18, 0.36) indicating no statistical
difference between the candidate and reference method. For the low inoculation level a POD
CP
value and a POD
CC
value of 0.35 was obtained with 95% confidence intervals of (0.18, 0.57). A dPOD
CP
value of 0.00 with 95%
confidence intervals of (-0.28, 0.28) indicating no statistical difference between the candidate method presumptive
and confirmed results.
For the high inoculation level, there were 5 presumptive and confirmed positives for the candidate method and 5
confirmed positives following the reference method. A POD
C
and POD
R
value of 1.00 was obtained with 95%
confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with 95% confidence intervals of (-0.43,
0.43), indicating no statistical difference between the candidate and reference method. A POD
CP
value and a POD
CC
value of 1.00 was obtained with 95% confidence intervals of (0.57, 1.00). A dPOD
C
value of 0.00 was obtained with
95% confidence intervals of (-0.43, 0.43), indicating no statistical difference between the candidate method
presumptive and confirmed results.
Creamy Peanut Butter
For the low inoculation level, there were 10 presumptive and confirmed positives for the candidate method and 9
confirmed positives following the FDA/BAM reference method. A POD
C
value of 0.50 was obtained with 95%
confidence intervals of (0.30, 0.70). A POD
R
value of 0.45 was obtained with 95% confidence intervals of (0.26,
2013.09 /PTM Matrix Extension Report
March 2014
Expert Review Panel Use Only
AOAC Research Institute
Expert Review Panel Use Only