Clark R M, Hundrieser K E
Department of Nutritional Sciences, University of Connecticut, Storrs 06269-4017.
Lipids. 1993 Feb;28(2):157-9. doi: 10.1007/BF02535781.
The fatty acids associated with triacylglycerol, cholesteryl ester, phosphatidylethanolamine, phosphatidylcholine and sphingomyelin in human milk were compared. Ten milk samples were selected for lipid class analysis based on their total lipid polyunsaturated/saturated fatty acid ratio (P/S ratio). The P/S ratio of the selected milk samples ranged from 0.3 to 0.8. Linoleic acid was the predominant fatty acid in milk to affect the P/S ratio. The percentage of linoleic acid in milk triacylglycerol was correlated (r = 0.84, P < 0.05) with the total milk lipid P/S ratio. Linoleic acid esterified to cholesterol was not correlated with total milk lipid P/S ratio but was correlated (r = -0.66, P < 0.05) with the quantity of lipid in the milk. Linoleic acid in the phospholipid classes did not correlate with shift in P/S ratio of the total milk lipid or linoleic acid content of other lipid classes.
对人乳中与三酰甘油、胆固醇酯、磷脂酰乙醇胺、磷脂酰胆碱和鞘磷脂相关的脂肪酸进行了比较。根据总脂质多不饱和/饱和脂肪酸比率（P/S比率）选择了10份乳样进行脂质类别分析。所选乳样的P/S比率在0.3至0.8之间。亚油酸是乳中影响P/S比率的主要脂肪酸。乳三酰甘油中亚油酸的百分比与总乳脂质P/S比率相关（r = 0.84，P < 0.05）。酯化到胆固醇上的亚油酸与总乳脂质P/S比率不相关，但与乳中脂质的量相关（r = -0.66，P < 0.05）。磷脂类中的亚油酸与总乳脂质P/S比率的变化或其他脂质类中亚油酸含量均不相关。
