炸油飮食降低血漿與肝臓維生素A含量

Dietary Oxidized Frying Oil Decreased Plasma and Liver Vitamin A in Rats

湯雅理(Ya-Li Tang) ； 黃青真(Ching-Jang Huang)

《中華民國營養學會雜誌》 23卷3期 (1998/08) Pp. 265-279

https://doi.org/10.6691/JCNS.199808_23(3).0005

摘要

The purpose of this study is to investigate the effect of oxidized frying oil on the vitamin A status. Three groups of Long-Evans male weanling rats were respectively fed P50, D50 and D500 diets. The D50 and D500 diets contained 15%(w/w) of oxidized frying oil whereas the P50 control diet contained 15%(w/w) fresh soybean oil. The P50 and D50 diets had normal vitamin E level (50mg/kg diet of α-tocophery1 acetate) while the D500 diet was supplemented with high level of vitamin E (500mg/kg diet). The vitamin A of all three diets was supplied by 4000 IU/kg diet of retiny1 palmitate. After 14 weeks of feeding, the D50 and D500 groups of rats showed vitamin A status inferior to the P50 group. The liver total retinol concentration of the D50 and D500 groups was about half of those of the control (P50) group (P＜0.05). The plasma retinol concentration of the D50 and D500 groups was also significantly lower than that of the P50 group (P＜0.05). The results indicated that vitamin A status was aggravated by feeding an oxidized oil containing diet. As the D500 group was affected similarly to the D50 group, the effect can not be attributed indirectly to the deteriorated vitamin E status resulting from the ingestion of dietary oxidized oil.

關鍵字

氧化炸油 ； 維生素A ； 視綱醇

並列摘要

The purpose of this study is to investigate the effect of oxidized frying oil on the vitamin A status. Three groups of Long-Evans male weanling rats were respectively fed P50, D50 and D500 diets. The D50 and D500 diets contained 15%(w/w) of oxidized frying oil whereas the P50 control diet contained 15%(w/w) fresh soybean oil. The P50 and D50 diets had normal vitamin E level (50mg/kg diet of α-tocophery1 acetate) while the D500 diet was supplemented with high level of vitamin E (500mg/kg diet). The vitamin A of all three diets was supplied by 4000 IU/kg diet of retiny1 palmitate. After 14 weeks of feeding, the D50 and D500 groups of rats showed vitamin A status inferior to the P50 group. The liver total retinol concentration of the D50 and D500 groups was about half of those of the control (P50) group (P＜0.05). The plasma retinol concentration of the D50 and D500 groups was also significantly lower than that of the P50 group (P＜0.05). The results indicated that vitamin A status was aggravated by feeding an oxidized oil containing diet. As the D500 group was affected similarly to the D50 group, the effect can not be attributed indirectly to the deteriorated vitamin E status resulting from the ingestion of dietary oxidized oil.

並列關鍵字

oxidized frying oil ； vitamin A ； retinol