. 2022 Mar 23;15(7):2381. doi: 10.3390/ma15072381

Table 4.

Color (L*, a*, b*), total color difference (∆E), yellowness index (YI) and transmittance of unmodified and modified alginate films.

Sample	L*	a*	b*	∆E	YI	T₂₈₀ (%)	T₆₆₀ (%)
ALG	89.06 ± 0.76 ^a	−0.64 ± 0.04 ^a	6.75 ± 1.58 ^a	Used as standard	11.07 ± 2.84 ^ab	96.95	97.01
ALG + 0.10% MEL	88.87 ± 1.10 ^aA	−0.62 ± 0.04 ^aA	6.93 ± 1.67 ^aA	1.60 ± 1.04 ^A	11.59 ± 2.82 ^ab	61.22	87.65
ALG + 0.25% MEL	88.21 ± 0.54 ^abA	−0.60 ± 0.02 ^aA	8.56 ± 1.03 ^abAB	2.03 ± 0.77 ^B	13.84 ± 1.94 ^ab	62.38	86.73
ALG + 0.50% MEL	87.56 ± 2.21 ^bA	−0.48 ± 0.20 ^bA	10.19 ± 5.12 ^bB	4.64 ± 4.70 ^C	15.48 ± 4.82 ^a	43.67	85.24
ALG + 0.10% MEL + nZnO	87.96 ± 0.57 ^ab	−0.63 ± 0.03 ^aA	9.02 ± 1.03 ^bA	2.37 ± 1.16 ^A	14.65 ± 1.77 ^ab	61.19	71.76
ALG + 0.25% MEL + nZnO	86.73 ± 1.04 ^b	−0.44 ± 0.11 ^bB	11.03 ± 1.58 ^cB	4.72 ± 1.88 ^B	18.19 ± 2.82 ^ac	42.6	68.21
ALG + 0.50% MEL + nZnO	84.32 ± 0.84 ^c	0.07 ± 0.20 ^cC	15.07 ± 1.38 ^dC	9.46 ± 1.61 ^C	25.56 ± 2.61 ^c	39.39	70.14
ALG + 0.10% MEL + nAg	24.94 ± 4.92 ^bA	24.35 ± 2.81 ^bA	26.65 ± 6.30 ^bA	72.21 ± 1.15 ^A	129.86 ± 17.10 ^b	24.28	34.07
ALG + 0.25% MEL + nAg	24.39 ± 2.53 ^bA	25.57 ± 2.24 ^bA	23.60 ± 4.36 ^bcA	71.94 ± 0.65 ^A	137.25 ± 11.89 ^c	10.1	12.57
ALG + 0.50% MEL + nAg	22.61 ± 2.99 ^cA	24.48 ± 4.53 ^bA	20.94 ± 6.04 ^cA	72.82 ± 0.68 ^A	149.47 ± 18.47 ^d	4.19	10.29

Values are means ± standard deviation. Means with different lowercase (a–d) are significantly different at p < 0.05 (compared to control), means with different uppercase (A–C) are significantly different at p < 0.05 (compared to other variants within groups).