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Benito Román, Oscar Rodríguez Perrino, María Sanz Díez, Mª Teresa Melgosa Gómez, Rodrigo Beltrán Calvo, Sagrario 2018-09-03T10:30:43Z 2018-09 2020-09 0896-8446 http://hdl.handle.net/10259/4903 10.1016/j.supflu.2018.05.009 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. Junta de Castilla y León and the European Regional Development Fund (ERDF - FEDER) for the financial support of project BU055U16 application/pdf eng Elsevier The Journal of Supercritical Fluids. 2018, V. 139, p. 62-71 https://doi.org/10.1016/j.supflu.2018.05.009 info:eu-repo/grantAgreement/JCyL/BU055U16 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Supercritical fluid extraction CO2 Quinoa Oil Tocopherol Ingeniería química Chemical engineering Supercritical carbon dioxide extraction of quinoa oil: Study of the influence of process parameters on the extraction yield and oil quality info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion