482-483 / 1195
Table 6. Molecular Detection Assay
Salmonella
Method Comparison Results
1
2
Matrix/
Inoculating Organism
%
Injury
a
APC
CFU/g
Test
Portion
Size
Contamination
Level
MPN
b
(CFU/g)
Total
Samples
3M Molecular
Detection Assay
Reference
Method
Chi
Square
c
Presump.
Pos.
Confirm
Pos.
USDA
Raw ground beef
S. enterica
ser. Ohio STS 81
--Internal--
NA
2.7 x 10
4
25g
Control
Low
NA
0.58
5
20
0
15
0
15
0
11
-
1.71
Raw ground beef
S. enterica
ser. Ohio STS 81
--Independent--
NA
9.2 x 10
2
25g
Control
Low
NA
1.01
5
20
0
6
0
6
0
6
-
0
Cooked breaded chicken
S. enterica
ser. Typhimurium
ATCC 14028
--Internal--
57%
3.3 x 10
2
325g
Control
Low
NA
1.1
5
20
0
11
0
11
0
12
-
0.10
Cooked breaded chicken
S. enterica
ser. Typhimurium
ATCC 14028
--Independent--
NA
5.4 x 10
2
325g
Control
Low
NA
1.89
5
20
0
11
0
11
0
12
-
0.10
Pasteurized liquid whole eggs
S. enterica
ser. Enteritidis
ATCC 13076
67%
<10
100 mL
Control
Low
NA
2.3
5
20
0
18
0
18
0
13
-
3.49
FDA-BAM
Raw shrimp
S. enterica
ser. Virchow ATCC
51955
60%
2.6 x 10
3
25g
Control
Low
NA
2.3
5
20
0
5
0
5
0
8
-
1.00
Bagged spinach
S. enterica
ser. Saintpaul
ATCC 9712
NA
3.1 x 10
4
25g
Control
Low
NA
0.23
5
20
0
9
0
9
0
7
-
0.41
Wet pet food
S. enterica
ser. Poona
NCTC 4840
NA
<10
375g
Control
Low
NA
0.58
5
20
0
8
0
8
0
5
-
1.00
24