Occurrence of conjugated fatty acids in the seed oil ofcouepia longipendula (chrysobalanaceae) |
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| Authors: | V Spitzer F Marx J G S Maia K Pfeilsticker |
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| Affiliation: | (1) Lehrstuhl f. Lebensmittelwissenschaft und Lebensmittelchemie, Rheinische Friedrich-Wilhelms-Université, D-5300 Bonn 1, Germany;(2) Museu Paraense Emilio Goeldi, 66040 Belém, Brazil |
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| Abstract: | The seeds ofCouepia longipendula contain 74.2% oil. Gas chromatography (GC) and gas chromatography/ mass spectrometry (GC/MS) of the methyl esters and oxazoline derivatives of the fatty acids and ultraviolet (UV), infrared (IR),1H-nuclear magnetic resonance (NMR) and13C-NMR spectra of the oil showed the presence of palmitic (25.2%), palmitoleic (0.9%), stearic (6.2%), oleic (26.5%), vaccenic (0.4%), linoleic (7.4%), arachidic (0.3%), α-eleostearic (11.3%) and α-licanic (21.8%) acids. Licanic acid methyl ester was isolated by thin-layer chromatography (TLC) and the13C-NMR and1H-NMR data are presented. |
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| Keywords: | 13C-NMR Couepia longipendula α -eleostearic acid GC/MS 1H-NMR α -licanic acid Oxazoline derivatives |
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