奶中超氧化物歧化酶(SOD)活性的研究

The Activity of Superoxide Dismutase(SOD) in Animal Milk

采用邻苯三酚自氧化法，对五种有代表性的动物奶中ＳＯＤ活性进行了研究。结果表明：在种间是猪＞狗＞人＞奶山羊＞奶牛，在种内随个体略有变化，在泌乳期间是初乳＞末乳＞常乳，在泌乳期内随泌乳时间呈规律性变化。奶中所含的ＳＯＤ，既能提高饮奶人的免疫功能，又利于奶本身的保鲜。

The method of autoxidation of pyrogallol was used in this experiment to study SOD activity in animal milk. The result is as follows: Among the different species, the SOD activity of each milk is in the order: pig>dog>human>goat>cow. within individual species, there was a slight change of SOD activity. Among the different lactation period, the SOD activity follows the order: colostrum> late > lactation milk> normal milk. Within the lactation period, the SOD activity of their milk shows a regular tread with the lactating time.