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以往的试验表明,用5410代乳糕喂养婴儿,同时补充鱼肝油,可以满足婴儿的生长需要,在推广代乳糕作为婴幼儿的代乳食品时,以鱼肝油作为V_A的唯一来源可能会受到一定的限制,因而考虑以蔬菜中的胡萝卜素作为V_A的另一来源。关于胡萝卜素在成人体内吸收利用的研究已有很多报导,而关于婴儿的报告不仅很少,且结果不一致,如Zeben报告婴儿对熟菠菜及罐头西红柿汁中的胡萝卜素利用很差,吸收率仅为5.8%,Nicholls等用胡萝卜素油剂治疗缺乏V_A的儿童无效,而Friderichsen等发现干菠菜可使婴儿暗适应恢复正常,Hegman报告24个2—12月龄的健康婴儿对胡萝卜素油剂的平均吸收率为72.47%。
Previous tests showed that feeding 5410 Formula to infants and supplementing with cod liver oil can meet the growth needs of infants. In promoting the formula as an infant formula, the sole source of cod-oil for V_A may be subject to certain Therefore, consider carotene in vegetables as another source of V_A. There have been many reports of studies on the uptake and utilization of carotenoids in adults. There are not only few reports on infants but also inconsistent results. For example, Zeben reports that infants use poorly on carotene in cooked spinach and canned tomato juice, and that the rate of absorption is only low Was 5.8%. Nicholls et al. Used carotenoid oil to treat V_A-deficient children, whereas Friderichsen et al. Found that dry spinach can restore normal darkness in infants. Hegman reported mean carotenoid absorption in 24 healthy infants aged 2-12 months The rate was 72.47%.