The 9‐hexadecenoic and 11‐octadecenoic acid content of natural fats and oils | Zendy

Kuemmel D. F. | Zendy; Chapman L. R. | Zendy

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The 9‐hexadecenoic and 11‐octadecenoic acid content of natural fats and oils

Author(s) -

Kuemmel D. F.,

Chapman L. R.

Publication year - 1968

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/bf02530930

Subject(s) - chemistry , chromatography , cis–trans isomerism , gas chromatography , organic chemistry

The monoenoic methyl esters from numerous fats and oils which contained appreciable cis ‐9‐hexadecenoic acid ( cis ‐9‐16∶1) were isolated by liquid‐solid chromatography on silver nitrate‐silica gel. Analysis of the monoenes by packed and capillary column gas‐liquid chromatography showed that significant amounts of cis ‐11‐octadecenoic acid ( cis ‐11‐18∶1) were present in all samples. The amount of cis ‐11‐18∶1 found in the monoenoic methyl esters increased proportionally to logarithmic increases in the cis ‐9‐16∶1 level. Most analyses reported in the literature also show this proportionality. This mathematical relationship suggests that chain elongation of cis ‐9‐16∶1 to cis ‐11‐18∶1 is a biosynthetic pathway operative in a wide variety of species.

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