Cerbulis J, Flanagan V P, Farrell H M
J Lipid Res. 1985 Dec;26(12):1438-43.
The hydrocarbon fraction of the neutral lipids of goats' milk was chromatographically purified and analyzed by gas-liquid chromatography and mass spectrometry. The goats' milk samples, which were collected during the spring of the year, represent a cross-sectional analysis; the purified hydrocarbon fraction displays a broad spectrum of compounds. The major components of the hydrocarbon fraction identified for the first time in goats' milk were 3,7,11,15-tetramethylhexadec-2-ene (phytene-2) (1.5%), squalene (approximately 2.5%), and n-C29H60 (4.2%); in addition, a series of odd and even carbon number n-alkanes (C15 to C33), a series of alkenes (C16 to C23), and a series of branched chain hydrocarbons were found. The goats' milk hydrocarbon fraction, in comparison to the known distribution from cows' milk, contains a good deal less squalene and phytene, and is more complex. One human milk hydrocarbon fraction isolated from a longitudinal composite sample from one lactation displays a distribution that appears to be more closely related to that of human skin lipids (1983. J. Lipid Res. 24: 120-130) than to those of goats' and cows' milk.
山羊奶中性脂质的烃类部分经色谱法纯化后，采用气液色谱法和质谱法进行分析。在春季采集的山羊奶样品代表了一种横断面分析；纯化后的烃类部分显示出广泛的化合物谱。首次在山羊奶中鉴定出的烃类部分的主要成分是3,7,11,15 - 四甲基十六 - 2 - 烯（植二烯）（1.5%）、角鲨烯（约2.5%）和正 - C29H60（4.2%）；此外，还发现了一系列奇数和偶数碳数的正构烷烃（C15至C33）、一系列烯烃（C16至C23）以及一系列支链烃。与已知的牛奶烃类分布相比，山羊奶烃类部分含有的角鲨烯和植二烯要少得多，且更为复杂。从一次哺乳期的纵向混合样品中分离出的人奶烃类部分的分布，与人类皮肤脂质的分布（1983年《脂质研究杂志》24卷：120 - 130页）的关系，似乎比与山羊奶和牛奶的分布关系更为密切。
