Resumen

RESTREPO, Jaime; ESTUPINAN, Jaime A  y  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.

Palabras clave : peachpalm; supercritical fluids; soxhlet; Bactric gasipaes Kunth.

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