二十二碳六烯酸和花生四烯酸在婴儿配方奶粉中的应用

介绍了乳母中天然存在的两种不饱和脂肪酸二十二碳六烯酸（DHA）和花生四烯酸（AA）在婴儿生长发育中的作用及其在配方奶粉中强化对非母乳喂养婴儿营养的重要性。并介绍了各专家组织对DHA和AA在婴儿配方奶粉中补充的推荐及目前的应用情况。探讨了HDA和AA的两种来源，即天然来源和利用生物技术发酵生产。DHA和AA的天然来源主要是鱼油和蛋黄，而目前商业上大都利用生物技术以薇藻和真菌发酵生产DHA和AA。介绍了生物技术发酵生产DHA和AA的工艺，并讨论了发酵产品在婴儿配方奶粉中应用的安全性。

Application of decosahexaenoic acid and arachidonic acid in infant formula

The roles of two polyunsaturated fa tty acids decosahexaenoic acid(DHA)and arachidonic acid(AA)which natu-rally present in breast milk in infan t growth and development and the importance of their supplement to infant formula in non -breast -fed infants nutrition were i ntroduced.Recommendations of experts panels on supplement of DHA and AA in infant formula and application situation nowadays were also introduced.The two resour ces of DHA and AA,natural resources a nd fermentation through biotechnology,were described.The natural resources of DHA and AA are fish oil and egg yolk,but most i ndustrial DHA and AA are produced by fermentation o f microalga and fungi at present.The production process of DHA and AA by fe rmentation and the safety of fermentation product applied in infant formula were dis cussed.