Determination of petroselinic acid inUmbelliflorae seed oils by combined GC and13C NMR spectroscopy analysis |
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| Authors: | J F Mallet E M Gaydou A Archavlis |
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| Affiliation: | (1) Laboratoire de Phytochimie, Paculté des Sciences et Techniques de Saint Jéróme, Avenue Escadrille Normandie Niémen, 13397 Marseille Cédex 13, France;(2) E.N.S.S.P.I.C.A.M., Université d'Aix-Marseille Ill, Avenue Escadrille Normandie Niémen, 13397 Marseille Céded 13, France;(3) Present address: Laboratoire de Chimie Organique Appliquée, Faculté des Sciences de Saint Jérome, Marseille Cédex 13, France |
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| Abstract: | Synthetic triolein and tripetroselinin mixtures were examined by13C 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 by13C NMR, petroselinic acid has been determined in tenUmbelliflorae seed oils. |
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| Keywords: | 13C NMR fatty acid gas chromatography oleic acid petroselinic acid seed oil Umbelliflorae |
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