Table 4. Results of fitting growth models for P. aeruginosa in fresh pork stored at 4 °C.
| Method | Sensor | Simulation equation | λ (h) | μmax(h−1) | Training | Testing | r | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rc2 | RMSEC | SSE | Rp2 | RMSEP | SSE | ||||||
| Gompertz | S9 | f(x) = 1.131 + 1.388*exp(−exp(0.06703/1.388*(102.3-x) + 1)) | 102.3 | 0.0247 | 0.8322 | 0.2764 | 12 | 0.8836 | 0.2784 | 3.797 | 0.9829 |
| S4 | f(x) = 1.089 + 1.576*exp(−exp(0.07715/1.576*(113.6-x) + 1)) | 113.6 | 0.0284 | 0.7681 | 0.3787 | 22.52 | 0.8873 | 0.2720 | 3.626 | 0.9633 | |
| PC 1 | f(x) = −4.95 + 7.972*exp(−exp(0.1182/7.972*(−13.1-x) + 1)) | −13.1 | 0.0435 | 0.7310 | 1.3770 | 297.8 | 0.8210 | 1.2482 | 76.35 | 0.9540 | |
| lg(CFU/g) | f(x) = 3.383 + 4.455*exp(−exp(0.1169/4.455*(71.2-x) + 1)) | 71.2 | 0.0430 | 0.9861 | 0.2075 | 8.869 | — | — | — | ||
| Logistic | S9 | f(x) = 1.109 + 1.41/(1 + exp(0.06493*(132.8-x))) | 132.8 | 0.06493 | 0.8450 | 0.2657 | 11.08 | 0.8991 | 0.2631 | 3.405 | 0.9889 |
| S4 | f(x) = 1.089 + 1.557/(1 + exp(0.07956*(144.4-x))) | 144.4 | 0.07956 | 0.7773 | 0.3712 | 21.26 | 0.9023 | 0.2550 | 3.186 | 0.9613 | |
| PC 1 | f(x) = −4.921 + 7.644/(1 + exp(0.02252*(81.05-x))) | 81.05 | 0.02252 | 0.7357 | 1.365 | 292.6 | 0.8242 | 1.2367 | 74.95 | 0.9683 | |
| lg(CFU/g) | f(x) = 3.307 + 4.306/(1 + exp(0.04258*(121.5-x))) | 121.5 | 0.04258 | 0.9850 | 0.2152 | 9.543 | — | — | — | — | |