Table 1.

Changes of α-tocopherol (ppm) in corn oils with chitosan and collagen loaded with α-tocopherol at 60 °C storage

	Oxidation time (day)
	0	3	4	5
Controla	222 ± 7bac	200 ± 11a	107 ± 11b	67 ± 40b
Chitosan	222 ± 7a	207 ± 49a	194 ± 5a	138 ± 11a
Collagen	222 ± 7a	209 ± 24a	204 ± 5a	173 ± 13a
Control + T	1747 ± 66A	1336 ± 176A	1117 ± 83A	115 ± 30B
Chitosan + T	1747 ± 66A	1528 ± 145A	1405 ± 173A	877 ± 95A
Collagen + T	1747 ± 66A	1413 ± 266A	1232 ± 390A	842 ± 339A

^a‘Control’, ‘Chitosan’, and ‘Collagen’ were oil samples without addition of α-tocopherol nor carriers, with chitosan gel, and with collagen mesh structure, respectively. ‘Control + T’, ‘Chitosan + T’, and ‘Collagen + T’ were oil samples with addition of α-tocopherol, with α-tocopherol loaded chitosan gel, and with α-tocopherol loaded collagen mesh structure, respectively

^bMean ± standard deviation (n = 3)

^cDifferent letters indicated significant differences in the same day at 0.05 in the same column