. 2021 Nov 12;10(11):2789. doi: 10.3390/foods10112789

Table 2.

Mechanical properties, water vapor permeability, and water contact angle of pullulan/chitosan-based bioactive films.

Films	Thickness (μm)	TS (MPa)	EB (%)	EM (GPa)	WVP (×10⁻⁹ g.m/m².Pa.s)	WCA (deg.)
PLN/CTS	43.1 ± 5.0 ^a	49.7 ± 5.3 ^a	5.9 ± 1.0 ^b	2.2 ± 0.2 ^a	0.77 ± 0.01 ^b	56.5 ± 3.8 ^a
PLN/CTS/ZnO	41.6 ± 3.9 ^a	61.5 ± 4.3 ^c	4.8 ± 0.9 ^a	2.6 ± 0.3 ^b	0.79 ± 0.03 ^b	59.6 ± 1.6 ^ab
PLN/CTS/PPS	47.0 ± 5.2 ^a	51.7 ± 4.8 ^b	5.7 ± 0.5 ^b	2.2 ± 0.2 ^a	0.72 ± 0.04 ^a	64.6 ± 4.1 ^c
PLN/CTS/ZnO/PPS	45.5 ± 4.5 ^a	62.6 ± 4.2 ^c	5.2 ± 0.4 ^ab	2.6 ± 0.2 ^b	0.69 ± 0.01 ^a	61.3 ± 2.0 ^b

The data are denoted as a mean ± standard deviation. In the same column, any two means, followed by the same letter, are not meaningfully (p > 0.05) dissimilar from Duncan’s multiple range tests.