Premium
The seed oil of Bernardia pulchella (Euphorbiaceae) —A rich source of vernolic acid
Author(s) -
Spitzer V.,
Aitzetmüller K.,
Vosmann K.
Publication year - 1996
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/bf02517980
Subject(s) - euphorbiaceae , fatty acid , chemistry , gas chromatography–mass spectrometry , gas chromatography , derivative (finance) , mass spectrometry , organic chemistry , chromatography , botany , biology , financial economics , economics
The fatty acids from the seed oil of Bernardia pulchella (Euphorbiaceae) have been analyzed by gas chromatography (GC) and GC‐mass spectrometry (MS) analysis of their methyl esters. Vernolic acid is the main compound (91%), along with other usual fatty acids. In addition to the quantitation by GC analysis, 1 H‐nuclear magnetic resonance (NMR) signals from the seed oil have been used to estimate the total epoxy fatty acid content. The structure of vernolic acid has been proven by spectroscopic methods (infrared, 1 H, and 13 C‐NMR) and by GC‐MS analysis of the corresponding silylated hydroxy‐methoxy derivative. The 4,4‐dimethyloxazoline derivatives of the fatty acid mixture have also been examined by GC‐MS, and it was shown that this derivazation reaction is not suitable for the structure analysis of vernolic acid.