Temperature profile
log increase
Our model (h)
PMPa (h)
PMPb (h)
1
1
2.14
1.75
4.00
1
2
2.66
2.21
16.00
2
1
2.04
1.68
4.00
2
2
2.46
2.17
8.00
3
1
1.94
1.62
5.00
3
2
2.40
2.17
>20.00
4
1
1.77
1.49
3.50
4
2
2.16
1.94
4.00
PMP
a
: Ground Beef Model; PMP
b
: Beef Gravy Model.
Table 3:
Predicted times to 1- and 2-log growth of C. perfringens in beef products as predicted by our model, PMP-ground beef model and PMP-beef gravy model, following four assumed process deviations.