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The structures of cyclopentenyl fatty acids in the seed oils of flacourtiaceae species by GC‐MS of their 4,4‐dimethyloxazoline derivatives
Author(s) -
Zhang J. Y.,
Wang H. Y.,
Yu Q. T.,
Yu X. J.,
Liu B. N.,
Huang Z. H.
Publication year - 1989
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/bf02546068
Subject(s) - chemistry , fragmentation (computing) , homologous series , gas chromatography–mass spectrometry , chromatography , stereochemistry , organic chemistry , mass spectrometry , biology , ecology
The structures of cyclopentenyl fatty acids in the seed oils of Hydnocarpus anthelmintica Pierre et Laness., H. alphina Wight, H. hainanensis (Merr.) and Taraktogenos merrilliana C.Y. Wu, all belonging to the family Flacourtiaceae, have been identified by GC‐MS of the mixed 2‐substituted 4,4‐dimethyloxazoline (DMOX) derivatives. These variations are characterized by the presence of key fragments at (M‐43), (M‐55) and (M‐67), while the location of a double bond in the chain is indicated by a 12‐mass interval between the highest peaks of two adjacent homologous ion clusters. The unique fragmentation pattern coupled with the good gas chromatographic qualities of these derivatives enable convenient structure determination of cyclopentenyl fatty acids in complex mixtures.