Table 8. Changes in color value (L*, ΔE) of houndfish treated by DW, 1% AA, CTS 1, CTS 2, CTS 3, CTS 4 during ice storage

	Samples	Storage time (days)
	Samples	0	4	8	12	16	20
E	DW	NA	3.60 ± 0.47^a	7.24 ± 2.09^a	8.32 ± 0.32^c	9.14 ± 0.11^d	10.27 ± 1.44^c
	1% AA	NA	3.51 ± 2.06^a	6.64 ± 1.38^a	7.43 ± 0.15^bc	8.02 ± 0.15^cd	8.75 ± 0.57^bc
	CTS 1	NA	3.51 ± 1.61^a	5.60 ± 1.47^a	6.50 ± 0.49^b	7.10 ± 0.67^bc	7.79 ± 0.12^b
	CTS 2	NA	3.14 ± 0.52^a	4.41 ± 0.38^a	4.81 ± 0.71^a	5.26 ± 0.19^ab	5.68 ± 0.31^a
	CTS 3	NA	3.01 ± 1.48^a	4.22 ± 0.24^a	4.49 ± 0.64^a	4.85 ± 0.28^a	5.11 ± 0.97^a
	CTS 4	NA	2.93 ± 0.89^a	4.30 ± 0.66^a	4.54 ± 0.40^a	4.92 ± 1.65^a	5.14 ± 0.20^a
L*	DW	52.4 ± 0.23^a	50.4 ± 1.65^a	47.2 ± 3.16^a	46.2 ± 0.22^a	45.4 ± 0.36^a	42.7 ± 1.07^a
	1% AA	51.7 ± 1.63^a	51.7 ± 0.71^a	47.5 ± 0.51^a	48.0 ± .88^b	47.1 ± 0.21^ab	44.7 ± 0.70^ab
	CTS 1	51.0 ± 0.72^a	49.1 ± 2.78^a	48.1 ± 0.99^a	47.8 ± .61^b	47.6 ± 0.55^b	45.9 ± 0.16^bc
	CTS 2	49.8 ± 0.72^a	50.0 ± 1.90^a	48.2 ± 0.86^a	47.9 ± 0.61^b	47.3 ± 0.42^ab	46.7 ± 0.48^bc
	CTS 3	50.8 ± 1.33^a	51.1 ± 0.51^a	48.3 ± 0.91^a	48.1 ± 0.61^b	47.4 ± 0.74^ab	47.0 ± 0.32^c
	CTS 4	49.5 ± 2.80^a	49.4 ± 1.67^a	48.2 ± 1.30^a	47.8 ± .97^b	47.4 ± 2.41^ab	46.9 ± 1.17^c

Values are mean ± SD (n = 3).
Values with different superscript within the same column are significantly different (p < 0.05).
DW, houndfish treated with distilled water; 1% AA, houndfish treated with 1% acetic acid; CTS 1, houndfish treated with 0.5% chitosan; CTS 2, houndfish treated with 1% chitosan; CTS 3, houndfish treated with 1.5% chitosan; CTS 4, houndfish treated with 2% chitosan; NA, not applicable.