Fritsche K L, Johnston P V
Department of Food Science, University of Illinois, Urbana 61801.
J Nutr. 1988 Apr;118(4):425-6. doi: 10.1093/jn/118.4.425.
Feeding of purified diets containing fish oil without added antioxidant leads to rapid autoxidation of the oil and the possibility of artifactual results due to the feeding of autoxidation products. Purified diets containing menhaden oil without any added antioxidant deteriorate quickly. Peroxide value of the diet is elevated 5- to 6-fold within 24 h and 12-fold within 48 h when exposed to air at room temperature. Addition of 0.02% t-butylhydroquinone to the fish oil prevents this deterioration for at least 72 h. Determination of fatty acid composition is not a sensitive indicator of diet integrity. Supplementation of fish oil diets with vitamin E to help protect against in vivo peroxidation is discussed.
喂食不含添加抗氧化剂的含鱼油纯化日粮会导致鱼油迅速自动氧化，并因喂食自动氧化产物而产生人为结果的可能性。不含任何添加抗氧化剂的含鲱鱼油纯化日粮会迅速变质。当在室温下暴露于空气中时，日粮的过氧化值在24小时内升高5至6倍，在48小时内升高12倍。向鱼油中添加0.02%的叔丁基对苯二酚可防止这种变质至少72小时。脂肪酸组成的测定不是日粮完整性的敏感指标。本文讨论了在鱼油日粮中添加维生素E以帮助防止体内过氧化的问题。
