Table 3.
The pH value, weight loss, and hardness of chicken breast fillets stored in PP containers (control) and plastic film laminated trays during seven days of storage at 4 °C.
| Property | Sample | Day | |||
|---|---|---|---|---|---|
| 1 | 3 | 5 | 7 | ||
| Weight loss (%) | Control | 3.69 ± 0.03 Ad | 5.09 ± 0.04 Ac | 5.55 ± 0.04 Ab | 6.83 ± 0.02 Aa |
| Film 1 | 3.16 ± 0.02 Ed | 4.63 ± 0.02 Cc | 5.25 ± 0.02 CDb | 6.34 ± 0.02 Da | |
| Film 2 | 3.23 ± 0.02 Dd | 4.49 ± 0.03 Dc | 5.11 ± 0.03 Eb | 6.19 ± 0.04 Ea | |
| Film 3 | 3.43 ± 0.02 Bd | 4.59 ± 0.04 Cc | 5.21 ± 0.03 Db | 6.55 ± 0.02 Ca | |
| Film 4 | 3.43 ± 0.02 BCd | 3.75 ± 0.02 Bc | 5.40 ± 0.03 Bb | 6.63 ± 0.02 Ba | |
| Film 5 | 3.37 ± 0.03 Cd | 4.43 ± 0.02 Dc | 5.28 ± 0.04 CDb | 6.55 ± 0.02 Ca | |
| Film 6 | 3.25 ± 0.01 Dd | 4.65 ± 0.02 Cc | 5.30 ± 0.02 Cb | 6.40 ± 0.02 Da | |
| Hardness (N) | Control | 123.55 ± 0.01 Ad | 130.14 ± 0.27 Ac | 138.68 ± 0.14 Ab | 144.02 ± 0.14 Aa |
| Film 1 | 119.58 ± 0.05 Ed | 122.25 ± 0.08 Ec | 130.59 ± 0.05 Eb | 140.42 ± 0.11 Da | |
| Film 2 | 118.80 ± 0.05 Fd | 121.41 ± 0.05 Fc | 130.22 ± 0.03 Fb | 137.69 ± 0.04 Ea | |
| Film 3 | 120.91 ± 0.06 Cd | 125.79 ± 0.04 Cc | 133.49 ± 0.07 Cb | 141.50 ± 0.07 Ca | |
| Film 4 | 121.38 ± 0.04 Bd | 125.88 ± 0.04 BCc | 133.97 ± 0.10 Bb | 142.51 ± 0.07 Ba | |
| Film 5 | 121.00 ± 0.16 Cd | 126.19 ± 0.05 Bc | 134.11 ± 0.05 Bb | 142.43 ± 0.06 Ba | |
| Film 6 | 120.23 ± 0.04 Dd | 122.72 ± 0.05 Dc | 132.43 ± 0.03 Db | 140.64 ± 0.15 Da | |
| pH | Control | 6.22 ± 0.07 Ad | 6.40 ± 0.05 Ac | 6.81 ± 0.06 Ab | 7.09 ± 0.03 Aa |
| Film 1 | 6.21 ± 0.02 Ad | 6.28 ± 0.02 BCc | 6.50 ± 0.04 Cb | 6.75 ± 0.02 Ca | |
| Film 2 | 6.22 ± 0.02 Ad | 6.33 ± 0.02 Bc | 6.45 ± 0.03 Cb | 6.72 ± 0.02 Ca | |
| Film 3 | 6.28 ± 0.02 Ad | 6.34 ± 0.02 ABc | 6.53 ± 0.03 BCb | 6.83 ± 0.02 Ba | |
| Film 4 | 6.24 ± 0.01 Ad | 6.35 ± 0.02 ABc | 6.63 ± 0.03 Bb | 6.86 ± 0.02 Ba | |
| Film 5 | 6.20 ± 0.02 Ac | 6.26 ± 0.02 Cc | 6.50 ± 0.04 Cb | 6.76 ± 0.02 Ca | |
| Film 6 | 6.25 ± 0.02 Ac | 6.31 ± 0.02 BCc | 6.52 ± 0.04 BCd | 6.85 ± 0.02 Ba | |
Control: polypropylene (PP) microwavable container. Capital letters of A–E represent significant differences (p < 0.05) amongst samples for each day for each property. Small letters of a–d represent significant differences (p < 0.05) amongst storage days for each sample for each property.