AOAC RI ERP Final Action Recommendations eBook

Table 3. Data Summary – Test Method vs Confirmed Results From Test Method Enrichment

Collaborative Study Approved Protocol Expert Review Panel Use Only

Enrichment Media/ Sample Size/ Enrichment Time

BAX ® Presumptive

BAX ® Confirmed

MPN a /Test Portion (cfu/test portion for surface testing)

dPOD CP f

N b

95% CI g

Matrix

Strain

d

e

x c

POD CP

95% CI

x

POD CC

95% CI

Control

5

0

0

(0, 0.43)

0

0

(0, 0.43)

0

(-0.45, 0.45)

S . Heidelberg DD13017

Ground Beef TSB+n/375g/ 24 hr

0.37 (0.20, 0.59) 20

5

0.25

(0.11, 0.47)

5

0.25

(0.11, 0.47)

0

(-0.14, 0.14)

Control

5

0

0

(0, 0.43)

0

0

(0, 0.43)

0

(-0.45, 0.45)

S . Heidelberg DD13017

BPW/25g/ 20 hr

Ground Beef

0.37 (0.20, 0.59) 20

4

0.2

(0.08, 0.42)

4

0.2

(0.08, 0.42)

0

(-0.14, 0.14)

Chicken Rinse

BPW/30ml/16 and 22 hr

Naturally Occurring

NA

20

11

0.55

(0.34, 0.74)

11

0.55

(0.34, 0.74)

0

(-0.14, 0.14)

Control

5

0

0

(0, 0.43)

0

0

(0, 0.43)

0

(-0.45, 0.45)

S . Typhimurium DD586 S . Typhimurium DD586

Cream Cheese

MP/25g/12 and 24 hr

0.20 (0.077, 0.39) 20

2

0.1

(0.028, 0.30)

2

0.1

(0.028, 0.30)

0

(-0.14, 0.14)

Control

5

0 5 0 4 5 0 4 5 0 3 5 0 5 0 5

0

(0, 0.43)

0 5 0 4 5 0 4 5 0 4 5 0 5 0 5

0

(0, 0.43)

0 0 0 0 0 0 0 0 0 0 0 0 0 0

(-0.45, 0.45) (-0.14, 0.14) (-0.45, 0.45) (-0.14, 0.14) (-0.45, 0.45) (-0.45, 0.45) (-0.14, 0.14) (-0.45, 0.45) (-0.45, 0.45) (-0.29, 0.19) (-0.45, 0.45) (-0.45, 0.45) (-0.14, 0.14) (-0.45, 0.45) (-0.14, 0.14)

Cream Cheese

LB/25g/24 hr

0.20 (0.077, 0.39) 20

0.25

(0.11, 0.47)

0.25

(0.11, 0.47)

0.00

5

0

(0, 0.43) 0.08-0.42 0.57-1.0 (0, 0.43) 0.08-0.42 0.57-1.0 0.05-0.36 0.57-1.0 (0, 0.43) 0-0.43

0

(0, 0.43) 0.08-0.42 0.57-1.0 (0, 0.43) 0.08-0.42 0.57-1.0 0.08-0.42 0.57-1.0 (0, 0.43) 0-0.43

S . Newport DD1261

MP/25g/12 and 24 hr

Lettuce

0.40 (0.22, 0.64) 20

0.20

0.2 1.0

4.3 (2.5, 8.2)

5 5

1.0

Control

0

0

S . Newport DD1261

Lettuce

LB/25g/24 hr

0.40 (0.22, 0.64) 20

0.20

0.2 1.0

4.3 (2.5, 8.2)

5 5

1.0

Control

0

0

S . Newport DD1261

LB/25g/24 hr + regrowth

Lettuce

0.40 (0.22, 0.64) 20

0.15

0.2 1.0

-0.05

4.3 (2.5, 8.2)

5 5

1.0

Control

0

0

S . Tennessee DD13062 S . Tennessee DD13062

Dry pet food BPW/375g/24 + regrowth

0.29 (0.13, 0.53) 20

0.25

(0.11, 0.47)

0.25

(0.11, 0.47)

Control

5

0

(0, 0.43)

0

(0, 0.43)

Dry pet food LB/375g/24 + regrowth

0.29 (0.13, 0.53) 20

0.25

(0.11, 0.47)

0.25

(0.11, 0.47)

18