Table 5. Effect of aerobic, vacuum and different modified atmosphere packagings on color of poultry breast fillets

Packaging methods		Storage time (D)						p-value
Packaging methods		0	2	4	6	8	10	d	trt	d×trt
Visual color acore	Control	8.13^cde±0.08	7.47^hi±0.10	6.01^k±0.10	3.96^m±0.12	2.56ⁿ±0.07	1.00^o±0.00	<0.0001	<0.0001	<0.0001
	VP	8.49^ab±0.08	8.44^ab±0.10	7.67^gh±0.08	7.58^ghi±0.10	6.89^j±0.13	5.51ⁱ±0.12
	MAP-1	8.38^abc±0.07	8.33^bcd±0.07	8.11^cde±0.09	7.76^fg±0.09	7.76^fg±0.07	6.84^j±0.11
	MAP-2	8.62^a±0.07	8.31^bcd±0.07	8.00^ef±0.06	8.07^de±0.04	8.00^ef±0.00	7.36ⁱ±0.09
L*	Control	55.11^h±1.26	57.87^bcdefgh±1.26	59.96^abcde±1.92	57.63^cdefgh±0.12	56.55^efgh±0.84	58.28^bcdefgh±1.35	<0.0001	0.0033	0.075
	VP	55.39^gh±1.05	58.39^bcdefgh±1.08	58.14^bcdefgh±1.09	59.46^abcdef±0.83	60.43^abcd±0.94	57.14^defgh±1.08
	MAP-1	56.18^fgh±1.21	59.50^abcdef±0.50	58.71^abcde±0.70	59.78^abcde±0.92	62.01^a±0.94	61.15^ab±1.17
	MAP-2	55.97^gh±1.31	58.60^abde±0.74	60.50^acde±0.53	60.96^abc±0.19	58.16^bcdefgh±1.36	60.77^abc±0.76
a*	Control	14.27^a±0.60	14.48^a±0.81	15.01^a±1.44	12.18^abcd±0.81	11.40^bcde±0.15	11.16^cde±0.46	<0.0001	0.1467	0.105
	VP	13.93^abc±0.84	13.25^abc±0.63	13.45^abc±0.69	12.37^abcd±1.09	12.97^abc±0.98	13.09^abc±0.36
	MAP-1	13.84^abc±0.41	13.63^abc±0.38	14.22^ab±0.39	13.83^abc±0.53	9.82^de±1.02	11.38^bcde±0.52
	MAP-2	14.12^ab±0.52	12.89^abc±0.75	12.98^abc±0.79	13.59^abc±0.79	10.17^de±1.40	9.26^e±0.72
b*	Control	14.34^defgh±0.40	17.87^abcde±0.62	19.82^a±0.77	17.70^abcde±1.43	18.65^a±0.62	18.26^abcd ±1.42	<0.0001	<0.0001	0.271
	VP	14.56^cdefgh±1.42	14.04^efgh±1.41	16.68^abcdef±2.31	14.49^cdefgh±1.73	14.49^cdefgh±1.33	11.07^h±0.77
	MAP-1	13.38^fgh±0.70	16.13^abcdefg±0.98	18.01^abcde ±1.61	14.79^bcdefgh±0.78	13.32^fgh±0.60	12.31^gh±0.70
	MAP-2	14.67^cdefgh±1.05	16.73^abcdef±1.59	18.41^abc±1.42	18.91^a±0.71	14.86^bcdefgh±0.98	14.78^bcdefgh±1.06

Control, aerobic packaging; VP, vacuum packaging; MAP-1, modified atmosphere packaging 1 (0% O₂, 40% CO₂, 60% N₂); MAP-2, modified atmosphere packaging 2 (20% O₂, 40% CO₂, 40% N₂).
Superscripts indicate a statistical significant difference between days and treatment (p<0.05).