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Analysis of seed oils containing cyclopentenyl fatty acids by combined chromatographic procedures
Author(s) -
Christie William W.,
Brechany Elizabeth Y.,
Shukla Vijai K. S.
Publication year - 1989
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/bf02535247
Subject(s) - chemistry , chromatography , fatty acid , gas chromatography , mass spectrometry , adduct , organic chemistry
The fatty acids of seed oils of the Flacourtiaceae, Hydnocarpus anthelmintica, Caloncoba echinata and Taraktogenus kurzii , have been examined by a combination of capillary gas chromatography, silver ion high performance liquid chromatography and gas chromatography‐mass spectrometry. In addition to the common range of cyclopentenyl fatty acids found in such oils, 13‐cyclopent‐2‐enyltridec‐4‐enoic acid was a major component of H. anthelmintica and was identified by mass spectrometry as its picolinyl ester and dimethyldisulphide adduct. It has not previously been found in nature. In the other seed oils, the isolated double bond in the corresponding fatty acid was in position 6, as expected. Similarly, cis ‐4‐hexadecenoic acid and C 16 and C 18 cyclopentyl fatty acids were identified for the first time in H. anthelmintica. Iso ‐ and anteiso ‐methylbranched fatty acids were present in trace amounts.