Table 2.
Color (L*, a*, b*), opacity (Op), oxygen permeability (O2P), water vapor permeability (WVP), total phenol content (TPC), and DPPH antioxidant activity of the RS/CMCh/ppl blended films.
| Film | L* | a* | b* | Op | O2P (×10−19 kg·m/Pa·m2·s) | WVP (×10−14 kg·m/Pa·m2·s) | TPC (mg·GAE/g·Sample) |
DPPH (%·Inhibition) |
|---|---|---|---|---|---|---|---|---|
| Control | 96.07 ± 0.49 a | –1.12 ± 0.09 a | 06.62 ± 0.47 a | 1.71 ± 0.35 ab | 5.00 ± 0.51 ab | 4.66 ± 0.30 a | - | 39.3 ± 1.6 a |
| ppl-2.5% | 84.15 ± 0.50 b | –0.22 ± 0.18 b | 30.08 ± 0.72 b | 2.31 ± 0.54 ab | 4.78 ± 0.04 a | 4.82 ± 0.81 a | 0.210 ± 0.004 a | 45.7 ± 1.6 b |
| ppl-5.0% | 81.04 ± 0.84 c | 0.80 ± 0.36 | 38.57 ± 0.85 c | 1.63 ± 0.19 a | 4.73 ± 0.08 a | 4.36 ± 0.53 a | 0.244 ± 0.002 b | 55.0 ± 0.8 c |
| ppl-10.0% | 74.08 ± 0.92 d | 5.78 ± 0.43 d | 49.38 ± 0.55 d | 2.04 ± 0.11 b | 5.74 ± 0.18 b | 5.86 ± 0.23 b | 0.408 ± 0.001 c | 69.9 ± 3.3 d |
Notes: Values area reported as average ± standard deviation. Values in the same column with different letters are statistically significantly different (p ≤ 0.05).