棕榈酸
婴儿配方奶粉
化学
甘油三酯
硬脂酸
脂肪酸
排泄
食品科学
钙
肉豆蔻酸
尿
内分泌学
胆固醇
生物化学
生物
有机化学
作者
VP Carnielli,I. H. T. Luijendijk,Johannes B. van Goudoever,Esther Sulkers,Anneke Boerlage,H. J. Degenhart,Pieter J. J. Sauer
标识
DOI:10.1093/ajcn/61.5.1037
摘要
The effect of the structure of human milk triglycerides on intestinal fat absorption remains controversial. Twelve infants were each fed, for 1 wk in a crossover design, two formulas that differed only in triglyceride configuration. The "beta" formula contained triglycerides similar to those in human milk (26% palmitic acid, esterified predominantly to the sn-2 position) whereas in the "alpha" formula, which contained triglycerides similar to those in formulas currently marketed, palmitate was mainly at the sn-1,3 positions. Fatty acid, fat, and mineral balances were measured at the end of each 1-wk period. Myristic, palmitic, and stearic acids were absorbed better from the beta formula, but total fat excretion was not reduced. During the feeding of beta formula fecal calcium excretion was lower, urinary calcium higher, and urinary phosphate lower. A formula containing triglycerides similar to those in human milk has significant effects on fatty acid intestinal absorption and improves mineral balance in comparison with a conventional formula.
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