232-233 / 1195
AOAC INTERNATIONAL
324
325
Table 2. BAX® System Presumptive vs. Confirmed Results
Sample matrix Enrichment
media
a
MPN / test portion
(95% CI)
b
Number of
samples
(N)
c
BAX® System Presumptive
BAX® System Confirmed
dPOD
CP
g
95% CI
h
Pos
d
POD
CP
e
95% CI
Pos
POD
CC
f
95% CI
BAX® System Real-Time
Salmonella
- PTM #081201
Ground Beef
mTSB
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)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Ground Beef
BPW
0.37 (0.20, 0.59)
20
4
0.20
0.08-0.42
4
0.20
0.08-0.42
0
(-0.14, 0.14)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Cream cheese
MP media 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)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Cream
cheese
LB
0.20 (0.077, 0.39)
20
5
0.25
0.11-0.47
5
0.25
0.11-0.47
0
(-0.14, 0.14)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Dry pet food
BPW
0.29 (0.13, 0.53)
20
5
0.25
0.11-0.47
5
0.25
0.11-0.47
0
(-0.14, 0.14)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Dry pet food
LB
0.29 (0.13, 0.53)
20
5
0.25
0.11-0.47
5
0.25
0.11-0.47
0
(-0.14, 0.14)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45-0.45)
BAX® System Real-Time
Salmonella
- Eight Additional PCR Cycles
Ground Beef
mTSB
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)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Ground Beef
BPW
0.37 (0.20, 0.59)
20
4
0.5
0.08-0.42
4
0.20
0.08-0.42
0
(-0.14, 0.14)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Cream cheese
MP media 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)
0.00
5
0
0
0-0.43
0
0
0-0.43
0
(-0.45, 0.45)
Cream
cheese
LB
0.20 (0.077, 0.39)
20
5
0.25
0.11-0.47
5
0.25
0.11-0.47
0
(-0.14, 0.14)
Dupont BAX Salmonella PTM Report
Modification Approved 2012 / PTM Certification No. 081201
For Expert Review Panel Use Only
Do Not Distribute