882-883 / 1195
229
Table 1. Matrix Study Details inoculated with
Listeria monocytogenes
230
Matrix
Strain Used
Equilibration
Protocol
Number of Replicates
APC
Ground Beef
ATCC 13932
4°C for
48h
0 cfu/test portion – 5
0.2-2 cfu/test portion – 25
2-5 cfu/test portion – 5
200 CFU/g
Queso
Fresco
ATCC 19114
4°C for
48h
0 cfu/test portion – 5
0.2-2 cfu/test portion – 25
2-5 cfu/test portion – 5
40 CFU/g
Deli Ham
ATCC 7644
(Heat
Stressed)
4°C for
48h
0 cfu/test portion – 5
0.2-2 cfu/test portion – 25
2-5 cfu/test portion – 5
60 CFU/g
Deli Turkey
ATCC 51776
(Heat
Stressed)
4°C for
48h
0 cfu/test portion – 5
0.2-2 cfu/test portion – 25
2-5 cfu/test portion – 5
<10 CFU/g
231
PTM Certification Modification Report