Shen L, Van Dael P, Luten J, Deelstra H
Department of Pharmaceutical Sciences, University of Antwerp (UIA), Wilrijk, Belgium.
Int J Food Sci Nutr. 1996 Jan;47(1):75-81. doi: 10.3109/09637489609028564.
The trace element selenium (Se) has been recognized to be essential for human health. The dependence of infants on milk as their principal food source, generally low in Se content, makes them more vulnerable to inadequate Se intake. The present study compared the Se availability as estimated by a simulated gastrointestinal digestion procedure, of human milk and some common ruminant milks, namely cow, goat and sheep milk. The Se availability of human milk (11.1%) was significantly higher compared to that of cow (6.8%), goat (6.2%) and sheep milk ( < 2%). Further study suggested that the Se availability may be related to the gastric digestibility of protein. The high Se availability of human milk might be attributed to the high gastric digestibility of human milk protein. It was found that removal of the milk fat fraction increases the Se availability.
微量元素硒（Se）已被认为对人类健康至关重要。婴儿主要依赖牛奶作为食物来源，而牛奶中的硒含量通常较低，这使得他们更容易摄入不足的硒。本研究通过模拟胃肠道消化程序比较了母乳与一些常见反刍动物奶（即牛奶、羊奶和绵羊奶）中硒的可利用性。母乳的硒可利用性（11.1%）显著高于牛奶（6.8%）、羊奶（6.2%）和绵羊奶（<2%）。进一步的研究表明，硒的可利用性可能与蛋白质的胃消化率有关。母乳中硒的高可利用性可能归因于母乳蛋白质的高胃消化率。研究发现，去除乳脂肪部分可提高硒的可利用性。
