呼和浩特地区母乳中脂溶性VA、VD、VE含量

Investigation of the Contents of the Fat-Soluble Vitamins A, D and E in Human Milk from Hohhot

通过对母乳中脂溶性VA、VD、VE含量进行测定,分析母乳脂溶性维生素在不同泌乳期的含量特点及变化情况,并结合中国居民膳食营养素参考摄入量评估呼市地区母乳脂溶性VA、VD、VE的营养现状,为婴儿粉产品开发提供一定参考。结果表明,母乳初乳VA、VE含量分别为0.11 mg/100 mL和0.93 mg/100 mL,母乳成熟乳VA、VE含量分别为0.05 mg/100 mL和0.29 mg/100 mL,初乳和成熟乳中VD的含量很低,无法测出。母乳脂溶性VA、VE的含量随泌乳期的延长而逐渐减少,并且研究发现呼市地区母乳中VA含量较丰富,能够满足婴儿需求,而VD、VE含量较低,不能满足婴儿需求,需要在饮食中进行强化和补充。

This investigation determined the contents of the fat-soluble vitamins A,D and E in human milk samples collected from Hohhot,the capital of North China＇s Inner Mongolia region,and analyzed the changing patterns of these vitamins during the lactation period.Nutritional evaluation of maternal breast milk with respect to these fat-soluble vitamins was conducted by the Chinese dietary reference intake （DRI） with the aim of guiding the development of milk powder products for infants.The results showed that the contents of VA and VE were 0.11 and 0.93 mg/100 mL in colostrum,and 0.05 and 0.29 mg/100 mL in mature milk,respectively,while VD content was too low to be detected in colostrum and mature milk.VA and VE contents tended to decline with prolonged lactation.Moreover,it was found that VA was relatively abundant in breast milk from Hohhot,which could meet infants＇ nutritional requirements.However,breast milk could not meet VD and VE requirements for infants.As a result,dietary fortification and supplementation of VD and VE are needed for breastfed infants.