327 / 350
The ISO/FDA BAM method had a lower repeatability value than the 3M RYM method for all three levels,
1
with S
r
values, respectively, of 0.4273 and 0.4671 for the low level, 0.0554 and 0.0686 for the medium
2
level, and 0.0352 and 0.0385 for the high level. Detailed results are presented in Table 25.
3
4
5
6
7
8
9
10
11
12
Table 25.
Method Comparison Results for Fermented Salami at 48 Hours.
13
SD
SD
(S
r
)
(S
r
)
1
<10
<0
<10
<0
2
<10
<0
<10
<0
3
<10
<0
<10
<0
4
<10
<0
<10
<0
5
<10
<0
<10
<0
1
<10
<0
<10
<0
2
9.5 x10
1
1.9777
1.0x10
2
2.0000
3
1.0x10
1
1.0000
2.0 x10
1
1.3010
4
1.0x10
1
1.0000
1.0 x10
1
1.0000
5
3.0x10
1
1.4771
4.0x10
1
1.6021
1
3.2 x10
2
2.5051
3.4x10
2
2.5315
2
3.6 x10
2
2.5563
3.4x10
2
2.5315
3
3.9 x10
2
2.5911
3.2 x10
2
2.5051
4
3.0 x10
2
2.4771
2.5 x10
2
2.3979
5
2.6 x10
2
2.415
3.2x10
2
2.5051
1 2.5 x 10
3
3.3979
3.5 x 10
4
3.3010
2
2.6 x 10
3
3.4150
4.3 x 10
4
3.3802
3
2.6 x 10
3
3.4150
4.9 x 10
4
3.3802
4
2.2 x 10
3
3.3424
4.5x 10
4
3.3424
5
2.8 x 10
3
3.4472
5.2 x 10
4
3.3802
ISO/FDA BAM
p-value
Ct/g
LOG MEAN
Ct/g
LOG MEAN
Uninoculated
-
-
-
Level
Sample
3M RYM Petrifilm
-
NA
Low
1.3637 0.4671
1.4758 0.4273 0.7354
Medium
2.5089 0.0686
2.4942 0.0554 0.7194
High
3.4035 0.0385
3.3568 0.0352 0.0805
14
15
Fermented salami 60 hours
16
31
AOAC Research Institute
Expert Review Panel Use Only
OMAMAN-16D/ PTM Report
ERP Use Only - December 2014