RT info:eu-repo/semantics/article
T1 Valorization of rice bran: modified supercritical CO2 extraction of bioactive compounds
A1 Benito Román, Oscar
A1 Varona Fernández, Sandra
A1 Sanz Díez, Mª Teresa
A1 Beltrán Calvo, Sagrario
K1 Supercritical fluid extraction
K1 CO2
K1 Rice bran oil
K1 Valorization
K1 Circular economy
K1 Ingeniería química
K1 Chemical engineering
AB In this work, as a first step in a comprehensive strategy for the valorization of rice bran, the extraction of oil using supercritical CO2 and ethanol as cosolvent has been studied. The effect of extraction temperature (40 and 60 °C), pressure (30 and 40 MPa) and amount of ethanol used (0, 5 and 10%) has been considered. The quality extracted oil has been evaluated in terms of antioxidant activity, fatty acid profile and bioactive compounds such as phenolics, flavonoids, γ-oryzanols, and tocopherols content.Results revealed that, using neat CO2, the best oil in terms of antioxidant activity was obtained at 40 °C and 30 MPa. However, the addition of ethanol as modifier significantly increased the amount of bioactive molecules extracted and hence the overall antioxidant activity of the oil, which was maximum at 40 MPa and 10% ethanol, regardless the temperature. The use of ethanol also affected the amount of fatty acids and γ-oryzanols extracted.
PB Elsevier
SN 1226-086X
YR 2019
FD 2019-12
LK http://hdl.handle.net/10259/5159
UL http://hdl.handle.net/10259/5159
LA eng
NO Junta de Castilla y León and the European Regional Development Fund (ERDF) for the financial support of project BU301P18
DS Repositorio Institucional de la Universidad de Burgos
RD 25-abr-2024