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Determination of petroselinic acid in Umbelliflorae seed oils by combined GC and 13 C NMR spectroscopy analysis
Author(s) -
Mallet J. F.,
Gaydou E. M.,
Archavlis A.
Publication year - 1990
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/bf02540408
Subject(s) - triolein , chemistry , nuclear magnetic resonance spectroscopy , oleic acid , spectroscopy , chromatography , fatty acid , carbon 13 nmr , organic chemistry , analytical chemistry (journal) , biochemistry , physics , quantum mechanics , lipase , enzyme
Synthetic triolein and tripetroselinin mixtures were examined by 13 C NMR spectroscopy, showing marked chemical shift differences of the olefinic carbon atoms. Peak height ratios were compared to weight values for quantitative determination of oleic and petroselinic acids in seed oils, since these two fatty acids are quantitated together by GC analysis. Values observed for NMR peak height ratios were fairly close and agreed well with weight ratios. From overall compositions of eleic and petroselinic acids obtained by GC and relative compositions given by 13 C NMR, petroselinic acid has been determined in ten Umbelliflorae seed oils.