Estudio comparativo de las fracciones lipídicas de Bactris gasipaes Kunth (chontaduro) obtenidas por extracción soxhlet y por extracción con CO2 supercrítico.

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. [ABSTRACT FROM AUTHOR]