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Título : Supercritical carbon dioxide extraction of quinoa oil: Study of the influence of process parameters on the extraction yield and oil quality
Autor : Benito Román, Oscar
Rodríguez Perrino, María
Sanz Díez, Mª Teresa
Melgosa Gómez, Rodrigo
Beltrán Calvo, Sagrario
Publicado en: The Journal of Supercritical Fluids. 2018, V. 139, p. 62-71
Editorial : Elsevier
Fecha de publicación : sep-2018
Fecha de disponibilidad: sep-2020
ISSN : 0896-8446
DOI: 10.1016/j.supflu.2018.05.009
Resumen : The supercritical CO2 extraction of oil from four different quinoa varieties has been studied in this work. For this purpose, the influence of extraction temperature (40–60 °C), pressure (20–40 MPa) and raw material size (250–1000 μm) on the extraction rate has been considered. The extraction rate resulted to be faster the higher the pressure whereas the temperature had less influence on the extraction kinetics. The experimental data were modelled using the Sovova’s kinetic model. The quality of the oil extracted has been evaluated in terms of antioxidant activity (AA), fatty acid profile and tocopherol content. The highest AA was obtained for quinoa oil extracted at 40 MPa and 40 °C; this oil presented high content of polyunsaturated fatty acids (63% of the total) and significant amount of tocopherols (2.5 mg/g oil). Quinoa oil extracted using CO2 presented higher antioxidant capacity and tocopherol content than quinoa oil extracted with hexane, regardless the quinoa variety used.
Palabras clave: Supercritical fluid extraction
CO2
Quinoa
Oil
Tocopherol
Materia: Ingeniería química
Chemical engineering
Licencia: https://creativecommons.org/licenses/by-nc-nd/4.0/
URI : http://hdl.handle.net/10259/4903
Versión del editor: https://doi.org/10.1016/j.supflu.2018.05.009
Aparece en las colecciones: Artículos BIOIND

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