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Observed and predicted TTD of SEA under combined conditions for external validation.
| T (°C) | Inoculation level (SD) (log CFU/g) | Obs (corrected TTD) (SD) (h) | Pred (h) | |
|---|---|---|---|---|
| Linear polynomial regression | Threshold method | |||
| 25 ± 1 | 2.51 (0.01) | 29.00 (0.12) | 30.74 | 32.07 |
| 25 ± 1 | 3.59 (0.04) | 23.00 (0.11) | 22.50 | 28.32 |
| 25 ± 1 | 4.42 (0.02) | 15.00 (0.13) | 16.43 | 18.08 |
| 32 ± 1 | 2.51 (0.01) | 18.00 (0.10) | 17.26 | 16.20 |
| 32 ± 1 | 3.59 (0.04) | 12.00 (0.09) | 13.65 | 11.57 |
| 32 ± 1 | 4.42 (0.02) | 10.50 (0.04) | 11.13 | 7.64 |
