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Identification of cyclopentenyl fatty acids by 1 H and 13 C nuclear magnetic resonance
Author(s) -
Blaise Pierre,
Farines Marie,
Soulier Jacques
Publication year - 1997
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/s11746-997-0209-7
Subject(s) - fatty acid , gas chromatography , chemistry , thin layer chromatography , chromatography , nuclear magnetic resonance , proton , carbon fibers , organic chemistry , materials science , nuclear physics , physics , composite number , composite material
Abstract Gorlic, chaulmoogric and hydnocarpic fatty acids, specific to the seed oil of the genus Hydnocarpus sp. (Flacourtiaceae), are determined only with difficulty by gas chromatography. These fatty acids were isolated in their methyl ester form by a combination of different chromatographic techniques (thin‐layer chromatography/Ag + and high‐pressure liquid chromatography). The proton and carbon nuclear magnetic resonance analysis of these fatty acid methyl esters showed some characteristic signals of the cyclopentenyl ring. The presence of these signals in the proton and/or carbon nuclear magnetic resonance spectrum of an oil thus will allow us to confirm the presence of these cyclopentenyl fatty acids in lipids.