. 2020 Oct 5;12(10):2281. doi: 10.3390/polym12102281

Table 1.

Thickness, film solubility (FS), and transparency of films incorporated with green tea extract (GTE) at pH 3 or pH 11 with different concentrations.

PH Level	Source	(w/w Protein)	Thickness (mm)	FS (%)	Transparency (% mm⁻¹)
pH 3	Control	Control	0.087 ± 0.002^F	54.76 ± 0.17^B	3.11 ± 0.17^C
	GTE	2%	0.088 ± 0.002^F	36.90 ± 0.13^E	3.28 ± 0.06^CB
		4%	0.093 ± 0.001^E	32.95 ± 0.17^G	3.38 ± 0.20^B
		6%	0.098 ± 0.002^D	30.48 ± 0.2^H	3.59 ± 0.18^A
pH 11	Control	Control	0.92 ± 0.002^E	64.22 ± 0.08^A	0.96 ± 0.08^F
	GTE	2%	0.100 ± 0.002^C	42.65 ± 0.09^C	3.11 ± 0.15^C
		4%	0.103 ± 0.002^B	39.66 ± 0.14^D	2.38 ± 0.16^D
		6%	0.107 ± 0.002^A	36.27 ± 0.17^F	1.96 ± 0.18^E

Data are presented as means ± SD for thickness, FS, and transparency (n = 6). Different letters in the same column indicate significant differences (p < 0.05) among the film samples with different concentrations of GTE at different pH levels.