(13)C NMR characterization of triacylglycerols of Moringa oleifera seed oil: an “oleic-vaccenic acid” oil.
 |
Related Articles |
(13)C NMR characterization of triacylglycerols of Moringa oleifera seed oil: an “oleic-vaccenic acid” oil.
J Agric Food Chem. 2002 Feb 27;50(5):970-5
Authors: Vlahov G, Chepkwony PK, Ndalut PK
The composition of acyl chains and their positions in the triacylglycerols of the oil extracted from seeds of Moringa oleifera were studied by (13)C NMR spectroscopy. The unsaturated chains of M. oleifera seed oil were found to comprise only mono-unsaturated fatty acids and, in particular, two omega-9 mono-unsaturated acids, (cis-9-octadecenoic (oleic acid) and cis-11-eicosenoic acids) and one omega-7 mono-unsaturated acid (cis-11-octadecenoic acid (vaccenic acid)). The mono-unsaturated fatty acids were detected as separated resonances in the spectral regions where the carbonyl and olefinic carbons resonate according to the 1,3- and 2-positions on the glycerol backbone. The unambiguous detection of vaccenic acid was also achieved through the resonance of the omega-3 carbon. The (13)C NMR methodology enabled the simultaneous detection of oleate, vaccenate, and eicosenoate chains according to their positions on the glycerol backbone (1,3- and 2-positions) through the carboxyl, olefinic, and methylene envelope carbons of the triacylglycerol acyl chains.
PMID: 11853466 [PubMed - indexed for MEDLINE]
Related posts:
- Analytical characterization of Moringa oleifera seed oil grown in temperate regions of Pakistan.
- Removal of cadmium from aqueous system by shelled Moringa oleifera Lam. seed powder.
- Effects of Moringa oleifera seed extract on rumen fermentation in vitro.
- Profiling glucosinolates and phenolics in vegetative and reproductive tissues of the multi-purpose trees Moringa oleifera L. (horseradish tree) and Moringa stenopetala L.
- Single-step ion exchange purification of the coagulant protein from Moringa oleifera seed.