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Structure of some intact lipids of petrel stomach oils
Author(s) -
Watts Rodney,
Warham John
Publication year - 1976
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02532831
Subject(s) - chemistry , wax , ether , triglyceride , stereochemistry , organic chemistry , biochemistry , cholesterol
The stomach or proventricular oils from 16 species of petrel have been analyzed and the carbon number distributions of the wax esters, triglycerides, and diacylglyceryl ethers are reported. The wax esters have been fractionated further into less and more polar species. To determine whether any intermolecular specificity existed, carbon number distributions for each lipid class were calculated, assuming random esterifications. The triglyceride and diacylglyceryl ether compositions observed were all found to agree closely with those calculated. The wax esters from three petrel species were found to have greater proportions of the middle range species with carbon numbers 34–38 than calculated. However, most of the lipids examined had random structures which have been found to be characteristic of marine sources. The results in general support the belief that the oils are derived directly from dietary sources rather than synthesis by the proventricular glands.