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. 2022 Nov 21;9:1047988. doi: 10.3389/fnut.2022.1047988

TABLE 2.

The parameters of color and opacity in films.

Films	L*	a*	b*	ΔE	WI	Opacity (mm^–1)
CS	35.12 ± 0.49^c	−0.42 ± 0.06^a	−0.22 ± 0.02^b	58.24 ± 0.47^a	35.12 ± 0.34^c	3.62 ± 0.02^d
CS/WPI	36.67 ± 0.17^b	−0.72 ± 0.01^b	−0.69 ± 0.07^c	56.62 ± 0.15^b	36.67 ± 0.16^b	8.61 ± 0.03^c
CS/WPI/TiO₂	39.29 ± 0.54^a	−1.46 ± 0.03^c	−0.86 ± 0.05^c	54.13 ± 0.42^c	39.22 ± 0.26^a	17.4 ± 0.03^ab
CS/WPI/WPEO	37.27 ± 0.43^b	−2.55 ± 0.02^d	1.25 ± 0.04^a	55.73 ± 0.33^b	37.25 ± 0.23^b	16.7 ± 0.04^b
CS/WPI/WPEO/TiO₂	38.76 ± 0.55^a	−1.92 ± 0.05^e	1.85 ± 0.04^a	54.12 ± 0.20^c	38.70 ± 0.33^a	17.9 ± 0.04^a

Data are expressed as mean ± SD. Different letters (a–d) in each column indicate significant differences among films (P < 0.05).