Journal ArticleDOI
Determination of double bond position in unsaturated triglycerides by analysis of the oxidation products by gas liquid chromatography
A. P. Tulloch,B. M. Craig +1 more
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Oleic, linoleic, and linolenic esters and olive, sunflower, linseed, rapeseed, hydrogenated rape-seed, and coriander oils have been oxidized by the permanganate-periodate reagent as discussed by the authors.Abstract:
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.read more
Citations
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Hydrocarbon chain packing and molecular motion in phospholipid bilayers formed from unsaturated lecithins. Synthesis and properties of sixteen positional isomers of 1,2-dioctadecenoyl-sn-glycero-3-phosphorylcholine.
P G Barton,F D Gunstone +1 more
TL;DR: In this paper, isomers of cis-octadecenoic acid, with the double bond in each position in the hydrocarbon chain, were used to synthesize the corresponding 1,2-diacyl-sn-glycero-3phosphorylcholines (lecithins).
Journal ArticleDOI
Analysis of fatty acids by gas chromatography, and its relevance to research on health and nutrition
TL;DR: Gas chromatography (GC) has been an indispensable analytical technique ever since the first exciting steps in the application of fatty acid determinations in oilseed plant breeding, biosynthesis and human metabolism as mentioned in this paper.
Journal ArticleDOI
The composition of beeswax and other waxes secreted by insects
TL;DR: The bumble bee wax contains major proportions of saturated and unsaturated hydrocarbons, and of long chain saturated, mono- and diunsaturated esters, and the relationship between structure and function of the waxes is discussed.
Journal ArticleDOI
Occurrence of mixtures of geometrical isomers of conjugated octadecatrienoic acids in some seed oils: Analysis by open‐tubular gas liquid chromatography and high performance liquid chromatography
Toru Takagi,Yutaka Itabashi +1 more
TL;DR: In this paper, an analytical method to obtain detailed compositions of the fatty acids in oils containing more than one conjugated octadecatrienoic acid by open-tubular gas liquid chromatography (GLC) and by reversed-phase HPLC were established.
References
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Journal ArticleDOI
Periodate–permanganate oxidations: v. oxidation of lipids in media containing organic solvents
TL;DR: In this paper, the periodate-permanganate reaction with methyl oleate and triolein has been studied in media containing a variety of organic solvents, and it has been shown that the reaction proceeds favorably in media with tertiar...
Journal ArticleDOI
Periodate–permanganate oxidations: i. oxidation of olefins
R. U. Lemieux,E. Von Rudloff +1 more
TL;DR: In this paper, it was discovered that olefinic double bonds are readily oxidized in an aqueous solution of periodate which contains only catalytic amounts of permanganate.
Journal ArticleDOI
Metabolism of essential fatty acids. VIII. Origin of 5,8,11-eicosatrienoic acid in the fat-deficient rat.
Armand J. Fulco,James F. Mead +1 more
Journal ArticleDOI
Quantitative fatty acid analysis of vegetable oils by gas-liquid chromatography.
B. M. Craig,N. L. Murty +1 more
TL;DR: In this article, the fatty acid composition of a number of vegetable oils and of two synthetic mixtures of methyl esters are compared by gas-liquid chromatography and by standard methods.
Journal ArticleDOI
Periodate-permanganate oxidations. IV. Determination of the position of double bonds in unsaturated fatty acids and esters
TL;DR: The reaction of the periodate-permanganate reagent with unsaturated fatty acids, including oleic, elaidic, eicosenoic, 10-undecenoic, and linoleic acids, was described in this article.