Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Chemical Characterisation of New Oils Extracted From Cañihua and Tarwi Seeds With Different Organic Solvents

Version 1 : Received: 9 May 2024 / Approved: 13 May 2024 / Online: 13 May 2024 (06:49:36 CEST)

How to cite: Ortiz-Sempértegui, J.; Ibieta, G.; Tullberg, C.; Peñarrieta, J. M.; Linares-Pastén, J. A. Chemical Characterisation of New Oils Extracted From Cañihua and Tarwi Seeds With Different Organic Solvents. Preprints 2024, 2024050805. https://doi.org/10.20944/preprints202405.0805.v1 Ortiz-Sempértegui, J.; Ibieta, G.; Tullberg, C.; Peñarrieta, J. M.; Linares-Pastén, J. A. Chemical Characterisation of New Oils Extracted From Cañihua and Tarwi Seeds With Different Organic Solvents. Preprints 2024, 2024050805. https://doi.org/10.20944/preprints202405.0805.v1

Abstract

Vegetable oils contain fatty acids, phenolic compounds, natural antioxidants, and fat-soluble vitamins, which are beneficial against different diseases. Oil extraction methods can, however, affect their composition. This study aims to characterize the chemical composition of oils from two Andean seeds, cañihua (Chenopodium pallidicaule) and tarwi (Lupinus mutabilis), extracted with different organic solvents, petroleum ether, hexane, and ethanol. This study compares these oils with commercial sunflower, rapeseed, and olive oils. Results showed that oils extracted with hexane had the highest yield, while those extracted with ethanol had higher antioxidant activity and total phenolic compound content. Additionally, using ethanol makes the process more sustainable than non-green solvents. The composition of tarwi and cañahua oils extracted with ethanol includes fatty acids, tocopherols, antioxidants, and phenolic compounds associated with health benefits.

Keywords

Vegetable oils; Andean seeds; green solvents; fatty acid profile; tocopherols

Subject

Chemistry and Materials Science, Food Chemistry

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