Supercritical CO2 extraction of oil and omega-3 concentrate from Sacha inchi (Plukenetia volubilis L.) from Antioquia, Colombia

Authors

DOI:

https://doi.org/10.3989/gya.0786161

Keywords:

a -linolenic acid, Omega-3, Sacha inchi, Supercritical extraction

Abstract


Sacha inchi (Plukenetia volubilis L.) seeds were employed for oil extraction with supercritical CO2 at laboratory scale. The supercritical extraction was carried out at a temperature of 60 °C, pressure range of 400–500 bars and CO2 flow of 40–80 g/min. The maximum recovery was 58% in 180 min, favored by increasing the residence time of CO2 in the extraction tank. Subsequently, the process was evaluated at pilot scale reaching a maximum recovery of 60% in 105 min, with a temperature of 60 °C, pressure of 450 bars and CO2 flow of 1270 g/min. The fatty acid composition of the oil was not affected for an extraction period of 30–120 min. The Sacha inchi oil was fractionated with supercritical CO2 to obtain an omega-3 concentrate oil without finding a considerable increase in the proportion of this compound, due to the narrow range in the carbon number of fatty acids present in the oil (16–18 carbons), making it difficult for selective separation.

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References

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Published

2017-03-30

How to Cite

1.
Triana-Maldonado DM, Torijano-Gutiérrez SA, Giraldo-Estrada C. Supercritical CO2 extraction of oil and omega-3 concentrate from Sacha inchi (Plukenetia volubilis L.) from Antioquia, Colombia. Grasas aceites [Internet]. 2017Mar.30 [cited 2024Mar.29];68(1):e172. Available from: https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/1638

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Research