Table 3.
P- values obtained by the Analyze of Variance (ANOVA) of the film properties.
| Model | Tensile strength (MPa) | Elastic modulus (kg cm−1) | Opacity (A mm−1) | Elongation at break (%) |
|---|---|---|---|---|
| X1 | 0.0029 | <0.0001 | 0.0002 | 0.0006 |
| X2 | <0.0001 | <0.0001 | 0.0001 | 0.0782 |
| X1*X2 | 0.9521 | 0.1142 | 0.0294 | 0.0006 |
| X12 | 0.0002 | 0.4031 | 0.0070 | 0.0001 |
| X22 | 0.2397 | 0.7607 | 0.0676 | 0.0909 |
X1 = Pectin concentration (g); X2 = Glycerol concentration (%).