Table 1.
Thickness (µm), colour parameters, and opacity of films with and without Listex P100. PVOH, polyvinyl alcohol; SAG, sodium alginate with gelatin; SC, sodium caseinate.
| Films | Thickness | Opacity | L* | a* | b* | ΔE |
|---|---|---|---|---|---|---|
| SAG | 31.3 ± 1.9 a | 1.9 ± 0.2 c | 89.4 ± 0.1 b | −0.48 ± 0.02 b | 2.07 ± 0.32 a | - |
| SAG-Bph | 32.0 ± 1.8 a | 1.8 ± 0.2 c | 89.3 ± 0.5 b | −0.52 ± 0.02 a | 2.17 ± 0.03 a | 0.56 ± 0.01 b |
| SC | 91.7 ± 1.7 c | 0.6 ± 0.1 a | 89.8 ± 0.2 c | −0.38 ± 0.01 c | 1.75 ± 0.05 d | - |
| SC-Bph | 92.3 ± 1.6 c | 0.7 ± 0.1 a | 88.0 ± 0.1 a | −0.34 ± 0.01 d | 1.69 ± 0.02 c | 1.86 ± 0.14 c |
| PVOH | 48.0 ± 1.9 b | 1.2 ± 0.1 b | 89.0 ± 0.8 b | −0.14 ± 0.02 e | −0.04 ± 0.03 d | - |
| PVOH-Bph | 48.6 ± 1.8 b | 1.1 ± 0.3 b | 89.1 ± 0.1 b | −0.15 ± 0.01 e | −0.01 ± 0.04 c | 0.08 ± 0.02 a |
Different superscripts a–e within the same column indicate significant differences among the values of a parameter between different films according to analysis of variance (ANOVA).