Structure and Synthesis of Milk Fat. V. A Postulated Sequence of Events from Analyses of Mammary Tissue Lipids

To further reveal the structure and synthesis of milk fat, mammary tissue lipids from two goats and two cows, all lactating, were analyzed. In comparison to the composition of milk lipids, the mammary tissue lipids showed elevated levels of all lipid classes excepting triglycerides. The investigation centered on fatty acid composition of the di-and triglycerides of mammary tissue, and milk fat from the section of udder corresponding to the tissue lipid sample. The objective was to shed light on intermediates in triglyceride and fat globule formation.