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Vernonia galamensis : A rich source of epoxy acid
Author(s) -
Ayorinde Folahan O.,
Butler Boddy D.,
Clayton Marcella T.
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/bf02540503
Subject(s) - oleic acid , stearic acid , linoleic acid , chemistry , palmitic acid , arachidic acid , chromatography , extraction (chemistry) , fatty acid , organic chemistry , biochemistry
A percolation extraction of Vernonia galamensis seed, affording 38.6% of crude vernonia oil is described. The dark colored crude oil was degummed with water, treated with activated charcoal and bleached with a neutral agent, to give a light colored oil (Lovibond: 0.9 red, 3.5 yellow). Gas chromatographic/mass spectrometric analysis of the refined oil indicates a relative fatty acid composition of 79–81% vernolic ( cis ‐12,13‐epoxy‐ cis ‐9‐octadecenoic) acid, 11–12% linoleic acid, 4–6% oleic acid, 2–3% stearic acid, 2–4% palmitic acid, and a trace amount of arachidic acid.