Table 3.

Color (L∗: Luminosity, a∗: Chroma range green-red, b∗: Chroma range blue-yellow, ΔE∗: total color difference), opacity, and water vapor permeability of WPC films. F0: Film without active compounds (Control film); F1: 2% α-TOC – 0 ppm NAT; F2: 0% α-TOC – 300 ppm NAT; F3: 2% α-TOC – 300 ppm NAT.

Film	L∗	a∗	b∗	ΔE∗	Opacity	WVP (×10−10gm−1s−1Pa−1)
F0	89.7 ± 0.4a	−1.9 ± 0.1a	9.8 ± 1.3a	9.0 ± 1.4a	4.2 ± 0.6a	1.4 ± 0.0a
F1	90.9 ± 0.6b	−1.5 ± 0.1b	10.7 ± 1.6b,c	9.5 ± 1.7a,b	5.9 ± 0.7b	1.9 ± 0.1b
F2	90.5 ± 0.3c	−1.3 ± 0.1c	10.2 ± 0.8a,b	9.1 ± 0.8a	6.5 ± 1.0c	1.3 ± 0.1c
F3	90.9 ± 0.3b	−1.6 ± 0.1d	11.4 ± 0.9c	10.0 ± 0.9b	6.1 ± 0.5b,c	1.6 ± 0.0d

Mean values ± standard deviation, n = 3. Different letters in the same column indicate significant differences (p < 0.05) among the average values obtained by application of Duncans test.