Table 2. Changes in color values of chicken patties incorporated with CH, CH+GA, and GA-g-CH during refrigerated storage

Parameters	Treatments	Storage time (day)
Parameters	Treatments	0	3	6	9	12	15
CIE L*	CON	55.65±1.05^Af	57.26±0.72^Ae	58.72±0.81^Ad	60.39±0.53^Ac	63.65±0.68^Ab	66.45±0.43^Aa
	CH	55.85±0.77^Ad	57.23±0.46^Acd	57.94±0.78^Ac	59.60±1.31^ABb	60.44±1.03^Bab	61.61±0.87^Ba
	CH+GA	55.38±0.48^Ad	56.72±0.84^Ac	57.02±0.96^Ac	59.01±0.57^ABb	60.01±0.11^Bab	60.97±0.87^Ba
	GA-g-CH	55.32±0.91^Ae	55.77±0.77^Ade	57.14±0.80^Acd	57.64±0.63^Bbc	58.84±0.85^Bab	59.89±0.94^Ba
CIE a*	CON	5.87±0.12^Aa	5.60±0.15^Ab	5.12±0.13^Bc	4.61±0.10^Cd	3.98±0.23^Ce	3.52±0.11^Cf
	CH	6.00±0.40^Aa	5.91±0.23^Aa	5.49±0.19^ABb	5.03±0.08^Bc	4.79±0.17^Bc	4.40±0.11^Bd
	CH+GA	5.93±0.45^Aa	5.94±0.25^Aa	5.72±0.22^Aab	5.29±0.19^ABbc	5.17±0.14^ABcd	4.81±0.06^Ad
	GA-g-CH	5.92±0.30^Aa	5.90±0.14^Aa	5.79±0.21^Aab	5.54±0.14^Abc	5.33±0.16^Acd	5.00±0.18^Ad
CIE b*	CON	21.51±0.83^Aa	20.96±0.83^Aab	19.98±0.36^Bb	18.61±0.20^Cc	17.65±0.46^Cc	16.38±0.23^Cd
	CH	22.78±0.73^Aa	22.26±0.47^Aab	21.08±0.90^ABbc	20.14±0.72^Bcd	18.90±0.46^Bde	18.17±0.78^Be
	CH+GA	22.63±0.67^Aa	22.32±0.50^Aa	21.86±0.46^Aa	21.01±0.40^ABb	20.62±0.49^Abc	20.02±0.12^Ac
	GA-g-CH	22.94±0.99^Aa	22.23±0.28^Aab	22.02±0.44^Ab	21.50±0.28^Abc	21.07±0.32^Ac	20.74±0.27^Ac

Values are presented as mean±SE.
Different letters within a column indicate significant difference (p<0.05).
Different letters within a row indicate significant difference (p<0.05).
CH, chitosan; GA, gallic acid; GA-g-CH, gallic acid-grafted-chitosan.