Abstract
The phospholipids obtained as acetone-insoluble and ethyl ether-soluble fractions from cow's and human milks, respectively, were analyzed for phosphorus, nitrogen and fatty acid composition. Considerable differences were seen in their fatty acid compositions as determined by gas liquid chromatography. The cow's milk phospholipid (3.43% phosphorus, 1.94% nitrogen) contained 3.3% of acids above C20, but the value was much less than 6.5% of human milk phospholipid (3.60% phosphorus, 2.00 % nitrogen) . These phospholipids are rich in fatty acids above C20 compared with those in acetone-soluble fractions. No appreciable amounts acids below C10 were found in both phospholipids.
