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Determination of double bond position in unsaturated triglycerides by analysis of the oxidation products by gas liquid chromatography
Author(s) -
Tulloch A. P.,
Craig B. M.
Publication year - 1964
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02667029
Subject(s) - chemistry , double bond , dibasic acid , permanganate , reagent , rapeseed , chromatography , gas chromatography , linoleic acid , organic chemistry , periodate , fatty acid , food science
Oleic, linoleic, and linolenic esters and olive, sunflower, linseed, rapeseed, hydrogenated rape‐seed, and coriander oils have been oxidized by the permanganate‐periodate reagent. The relative amounts of the dibasic acids and of the mono‐basic acids produced were determined by gas liquid chromatography (GLC). These results were used in combination with the compositions of the oils, also found by GLC, to calculate the positions of the double bonds in the unsaturated fatty acids of the oils. Evidence for the presence of small amounts of 11‐octadecenoic acid and other unusual isomers was obtained.