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Triacylglycerols of Vernonia galamensis seed oil

Ncube, Ignatious ; Read, John S. ; Adlercreutz, Patrick LU and Mattiasson, Bo LU (1998) In Phytochemistry 47(5). p.723-727
Abstract

Separation methods using silica gel column chromatography and preparative thin layer chromatography were employed to prepare pure triacylglycerol fractions of the oil from Vernonia galamensis seeds. Pure vernolic acid (12, 13-epoxy-octadec-cis-9-enoic acid) was prepared by enzymatic hydrolysis of the chromatographically purified major triacylglycerol, trivernolin, using a commercially available immobilised lipase in a non-polar organic solvent. Analysis of the divernoloyl and monovernoloyl triacylglycerols with porcine pancreatic lipase indicated that vernolic acid is found mainly as the secondary ester in the divernoloyl triacylglycerol but not the monovernoloyl triacylglycerol.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Compositae, Divernoloylglycerides, Monovernoloyl glycerides, Seed oil, Triacylglycerols, Trivernolin, Vernolic acid, Vernonia galamensis
in
Phytochemistry
volume
47
issue
5
pages
5 pages
publisher
Elsevier
external identifiers
  • scopus:0032032066
ISSN
0031-9422
DOI
10.1016/S0031-9422(97)00677-8
language
English
LU publication?
yes
id
d1c6e48c-ffdf-4183-b9ab-f2ad79c9c363
date added to LUP
2019-06-20 16:11:57
date last changed
2020-01-13 02:04:23
@article{d1c6e48c-ffdf-4183-b9ab-f2ad79c9c363,
  abstract     = {<p>Separation methods using silica gel column chromatography and preparative thin layer chromatography were employed to prepare pure triacylglycerol fractions of the oil from Vernonia galamensis seeds. Pure vernolic acid (12, 13-epoxy-octadec-cis-9-enoic acid) was prepared by enzymatic hydrolysis of the chromatographically purified major triacylglycerol, trivernolin, using a commercially available immobilised lipase in a non-polar organic solvent. Analysis of the divernoloyl and monovernoloyl triacylglycerols with porcine pancreatic lipase indicated that vernolic acid is found mainly as the secondary ester in the divernoloyl triacylglycerol but not the monovernoloyl triacylglycerol.</p>},
  author       = {Ncube, Ignatious and Read, John S. and Adlercreutz, Patrick and Mattiasson, Bo},
  issn         = {0031-9422},
  language     = {eng},
  month        = {03},
  number       = {5},
  pages        = {723--727},
  publisher    = {Elsevier},
  series       = {Phytochemistry},
  title        = {Triacylglycerols of Vernonia galamensis seed oil},
  url          = {http://dx.doi.org/10.1016/S0031-9422(97)00677-8},
  doi          = {10.1016/S0031-9422(97)00677-8},
  volume       = {47},
  year         = {1998},
}