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

Table 9

The physical performance of the optimized film.

Sample	Thickness (mm)	TS (MPa)	E%	T%	WS (%)	WVP (×10^−10gs^−1m^−1Pa^−1)
Starch + glycerol + gelatin	0.071 ± 0.02^a	4.47 ± 1.21^b	109.91 ± 2.31^b	41.21 ± 0.13^a	43.64 ± 0.03^a	1.50 ± 0.02^c
Starch + glycerol	0.064 ± 0.01^b	4.83 ± 0.5^a	138.32 ± 11.94^a	41.12 ± 0.34^a	44.83 ± 0.31^c	1.56 ± 0.04^b
Starch + gelatin	0.068 ± 0.03^b	4.15 ± 0.07^c	89.62 ± 3.64^c	41.09 ± 0.18^a	43.77 ± 0.53^b	1.67 ± 0.02^a

Different letters indicated significant ().