Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Viability of Bacillus cereus after processes in the study
| Phase | Raw milk | Early pasterurization | Inoculated milk1 | Storage before final pasteurization | Final pasteurization | Final storage conditions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| −22 °C | 4 °C | |||||||||||||
| Sample | 1 wk | 2 wks | 3 wks | 4 wks | 1 wk | 2 wks | 3 wks | 4 wks | ||||||
| 1 | 0.00 | 0.00 | 5.81±0.19 | Processed immediately after inoculation2 | 5.81±0.19 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 1* | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 1C | 5.53±0.01 | 5.53±0.01 | x | 3.05±0.21 | 0.00 | 0.00 | 0.00 | 5.42±0.02 | 0.00 | 0.00 | 0.00 | |||
| 1C* | 0.00 | 0.00 | x | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 2 | 5.81±0.08 | 24 h at 4 °C | 5.72±0.03 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||
| 2* | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 2C | 5.58±0.02 | 5.54±0.11 | x | 3.14±0.21 | 0.00 | 0.00 | 0.00 | 5.25±0.05 | 0.00 | 0.00 | 0.00 | |||
| 2C* | 0.00 | 0.00 | x | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 3 | 5.74±0.47 | 7 days at −21 °C | 2.82±0.13 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | ||
| 3* | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 3C | 5.54±0.12 | 2.39±0.39 | x | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||
| 3C* | 0.00 | 0.00 | x | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | |||