Preparation and Characterization of Biodegradable Composited Films Based on Potato Starch/Glycerol/Gelatin

Table 7

Predicted and experimental data for the responses at the optimum point.

Indexes	Predicted value	Experimental value	Percentage error (%)
T%	44.37	41.21 ± 0.13	7.12
Thickness (mm)	0.073	0.071 ± 0.02	2.73
E%	102.15	109.91 ± 2.31	7.59
TS (MPa)	4.52	4.47 ± 1.21	1.11
WS %	39.13	43.64 ± 0.03	11.53
Comprehensive score	27.48	28.68 ± 0.79	4.35

Rheology of film-forming solutions.