Table 1. Results of PLS regression carried out on FTIR spectra (3,000–800 cm−1) and meat spoilage parameters obtained by traditional techniques on chicken samples at 4 ± 2 °C.
| Parameter | R2C | SEC | 1-VR | RMSEP | Mean | SD | RPD |
|---|---|---|---|---|---|---|---|
| TPC | 0.77 | 0.59 | 0.66 | 0.75 | 4.02 | 1.40 | 1.24 |
| Entero | 0.70 | 0.58 | 0.52 | 0.75 | 3.47 | 1.13 | 1.13 |
| Color | 0.65 | 15.17 | 0.33 | 21.02 | 92.10 | 28.02 | 0.97 |
| pH | 0.21 | 0.69 | 0.03 | 0.79 | 5.81 | 0.79 | 1.00 |
| TVBN | 0.74 | 2.34 | 0.56 | 3.19 | 14.46 | 5.43 | 1.27 |
| Shear force | 0.50 | 4.75 | 0.35 | 5.72 | 23.36 | 6.79 | 1.19 |