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Revista Colombiana de Química
Print version ISSN 0120-2804
Abstract
RESTREPO, Jaime; ESTUPINAN, Jaime A and COLMENARES, Ana J. Comparative study of lipid fractions from Bactris gasipaes Kunth (peach palm) obtained by soxhlet and supercritic CO2 extraction. Rev.Colomb.Quim. [online]. 2016, vol.45, n.1, pp.5-9. ISSN 0120-2804. https://doi.org/10.15446/rev.colomb.quim.v45n1.57199.
The efficiency and composition of lipid extracts of peach palm pulp (Bactris gasipaes Kunth), harvested in four different locations in the Colombian Pacific region, were evaluated by two different extraction methods. Soxhlet extraction method with hexane as a solvent, and supercritical fluid CO2 extraction method (SFE CO2) at 26,890 MPa and 330 K were tested. Results showed a higher efficiency for the SFE CO2 method (4.03-8.28% w/w) as compared to the soxhlet method (1.5-2.73% w/w) for four ecotypes or crops. Furthermore, the lipids characterization of the different ecotypes, performed by gas chromatography with a flame ionization detector (FID), showed a high content of unsaturated fatty acids, olive oil-like, with 36.23-51.89% w/w oleic acid, 2.38-8.82% w/w linoleic acid, and 0.22-1.58% w/w linolenic acid. The lipid content of peach palm fruit corroborate its potential as a very goodsource of essential fatty acids.
Keywords : peachpalm; supercritical fluids; soxhlet; Bactric gasipaes Kunth.