Table 4.

The water vapor permeation rate and solubility of starch/polyvinyl alcohol/citric acid ternary blend functional food packaging films.

Film	WVP(×10−9 g·m/m2·Pa·s)	Water Solubility (%)
S/P/C1:1:0	1.15 ± 0.04	29.8 ± 0.5
S/P/C3:3:0.08	1.21 ± 0.05	41.1 ± 0.2
S/P/C3:1:0.08	0.36 ± 0.11	6.5 ± 0.12
S/P/C1:1:0	1.56 ± 0.09	36.1 ± 0.04
S/P/C3:3:0.08	1.95 ± 0.15	45.6 ± 0.3
S/P/C3:1:0.08	0.42 ± 0.08	7.0 ± 0.7
S/P/C1:1:0	1.64 ± 0.10	33.5 ± 0.2
S/P/C3:3:0.08	1.76 ± 0.03	40.9 ± 0.14
S/P/C3:1:0.08	0.21 ± 0.13	6.2 ± 0.6