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Document 2 of 2 – 3M Petrifilm Salmonella Express PTM Study Report
Table 13. 3M Petrifilm SALX Method Comparison Chi-Square Results for Raw Ground Pork vs USDA (Internal Data)
1
Presumptive Confirmed
Control
N/A
< 0.075
5
0
0
0
-
-
0.2-2 CFU/
S. enterica
ser.
Montevideo
0.66
Test Portion ATCC 8387
(0.38-1.16)
Control
N/A
< 0.075
5
0
0
0
-
-
0.2-2 CFU/
S. enterica
ser.
Montevideo
0.66
Test Portion ATCC 8387
(0.38-1.16)
Control
N/A
< 0.075
5
0
0
0
-
-
0.2-2 CFU/
S. enterica
ser.
Montevideo
0.66
Test Portion ATCC 8387
(0.38-1.16)
Control
N/A
< 0.075
5
0
0
0
-
-
0.2-2 CFU/
S. enterica
ser.
Montevideo
0.66
Test Portion ATCC 8387
(0.38-1.16)
*Includes 95% confidence intervals
X
2
Alternative
Confirmation
X
2
Traditional
Conformation
APC
CFU/g
USDA/FSIS-
MLG
Inoculation
Level
Inoculating
Organism
MPN/25g*
Total
Samples
3M Petrifilm SALX
Method
18 Hr Primary Enrichment – 8 Hr RV-R10 2
0
Enrichment
2.4 x 10
7
20
9
9
9
0
0
18 Hr Primary Enrichment – 24 Hr RV-R10 2
0
Enrichment
2.4 x 10
7
20
9
9
9
0
0
24 Hr Primary Enrichment – 8 Hr RV-R10 2
0
Enrichment
2.4 x 10
7
20
9
9
9
0
0
24 Hr Primary Enrichment – 24 Hr RV-R10 2
0
Enrichment
2.4 x 10
7
20
9
9
9
0
0
2