Table 5.
Weight Loss, firmness, pH value, color, and sensory scores of apples.
| Film | P(LA-TMC)-7 | PLA/PTMC-7 | LDPE | Control | |
|---|---|---|---|---|---|
| Weight loss (%) | 0 | 0 | 0 | 0 | 0 |
| 7 | 1.9 ± 0.4 a | 1.8 ± 0.2 a | 2.0 ± 0.1 a | 5.6 ± 0.4 b | |
| 14 | 3.0 ± 0.2 a | 3.2 ± 0.2 a | 2.9 ± 0.0 a | 9.2 ± 0.6 b | |
| 21 | 3.9 ± 0.1 a | 3.6 ± 0.1 a | 3.6 ± 0.3 a | 14.3 ± 0.5 b | |
| 28 | 7.4 ± 0.3 a | 7.2 ± 0.6 a | 6.7 ± 0.5 a | 20.8 ± 1.3 b | |
| Firmness (N) | 0 | 22.6 ± 0.2 a | 22.6 ± 0.2 a | 22.6 ± 0.2 a | 22.6 ± 0.2 a |
| 7 | 21.3 ± 0.1 b | 21.9 ± 0.7 b | 21.8 ± 1.1 b | 19.2 ± 0.3 a | |
| 14 | 19.4 ± 0.4 b | 19.2 ± 0.2 b | 19.8 ± 0.9 b | 17.3 ± 0.5 a | |
| 21 | 18.5 ± 0.8 b | 18.0 ± 0.8 b | 18.7 ± 0.7 b | 10.5 ± 0.6 a | |
| 28 | 16.5 ± 1.0 a | 16.1 ± 0.4 a | 15.9 ± 0.1 a | -- | |
| Acidity | 0 | 1.24 ± 0.03 a | 1.24 ± 0.03 a | 1.24 ± 0.03 a | 1.24 ± 0.03 a |
| 7 | 1.21 ± 0.11 b | 1.20 ± 0.09 b | 1.21 ± 0.02 b | 1.16 ± 0.05 a | |
| 14 | 1.15 ± 0.07 b | 1.14 ± 0.07 b | 1.14 ± 0.12 b | 1.07 ± 0.13 a | |
| 21 | 1.12 ± 0.08 b | 1.11 ± 0.15 b | 1.12 ± 0.06 b | 1.05 ± 0.09 a | |
| 28 | 1.10 ± 0.06 a | 1.09 ± 0.07 a | 1.09 ± 0.07 a | -- | |
| Sensory evaluation | 0 | 9.8 ± 0.2 a | 9.8 ± 0.2 a | 9.8 ± 0.2 a | 9.8 ± 0.2 a |
| 7 | 8.9 ± 0.4 b | 8.8 ± 0.8 b | 9.0 ± 0.6 b | 7.5 ± 0.2 a | |
| 14 | 8.1 ± 0.6 b | 8.1 ± 0.2 b | 7.9 ± 0.7 b | 6.1 ± 0.8 a | |
| 21 | 6.5 ± 0.7 b | 6.8 ± 0.4 b | 7.0 ± 0.3 b | 3.3 ± 0.1 a | |
| 28 | 5.8 ± 0.1 a | 5.9 ± 0.5 a | 6.2 ± 0.6 a | -- |
All data are presented as mean ± standard deviation of the three replicates. Values followed by different small letter (a, b) in the same row are significantly different (p < 0.05). -- not detected.