Faus O, López Morales J, Faus M J, Periago J L, Bueno Sánchez A, Gil A, Martínez Valverde A
An Esp Pediatr. 1984 Oct 31;21(6):557-63.
The concentrations of free amino-acids have been determined in 54 samples of human milk: 18 in colostrum, 18 in transition milk and 18 in mature milk, all of them taken from women in the Eastern part of Andalucía. The amino-acids have been determined through high pressure ion-exchange chromatography and fluorimetric detection. Glutamic acid is the major free amino-acid, representing 21-52% of the total amount of these components in human milk. Its level increase significantly with advancing lactation. Taurine represents 14-19 of total free amino-acids in human milk, remaining its levels practically unchanged during the whole lactation. The fact that the major content of essential free amino-acids in present in human colostrum could suppose a contribution of these substances which are directly absorbable during a period of life when the nutritional requirements of the neonate are incremented.
已对54份人乳样本中的游离氨基酸浓度进行了测定：初乳18份、过渡乳18份、成熟乳18份，所有样本均取自安达卢西亚东部地区的女性。氨基酸通过高压离子交换色谱法和荧光检测法进行测定。谷氨酸是主要的游离氨基酸，占人乳中这些成分总量的21%-52%。其含量随着哺乳期的推进而显著增加。牛磺酸占人乳中游离氨基酸总量的14%-19%，在整个哺乳期其含量基本保持不变。人初乳中存在大量必需游离氨基酸这一事实表明，在新生儿营养需求增加的生命阶段，这些可直接吸收的物质能起到一定作用。
