Abstract
Summary Lipids were extracted from various tissues of lambs, hogs, and cattle, and the content of tetraenoic, pentaenoic, and hexaenoic acids were determined upon the lipids. Reproductive and glandular tissue lipids have the highest contents of polyunsaturated acids. Lamb testes lipid, containing 15.6% hexaenoic acid, was found to be the richest source of this acid. It also contains 10.3% arachidonic acid. The most practical sources for isolation of these acids from the point of view of availability as well as content are beef testes lipid and hog brain lipid for hexaenoic acid and hog liver lipid for arachidonic acid. Extraction by saponification of the entire tissue generally increases yield of total fatty acids above the yield of lipid obtained by ethanol extraction, but the total acids obtained have generally lower content of hexaenoic acid. Ethanol extraction is preferred. No lipid was extractable from dehydrated blood.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
