2026-06-21T18:08:53Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/74702023-04-17T09:20:48Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245
Valorization of brewer’s spent grain by consecutive supercritical carbon dioxide extraction and enzymatic hydrolysis
Alonso Riaño, Patricia
Melgosa Gómez, Rodrigo
Trigueros Andrés, Ester
Illera Gigante, Alba Ester
Beltrán Calvo, Sagrario
Sanz Díez, Mª Teresa
Biorefinery
Brewer's spent grain
Supercritical fluid extraction
Enzymatic hydrolysis
The double effect of supercritical carbon dioxide, sc-CO2, in a biorefinery concept applied to brewer’s spent grain
(BSG) was assessed in this work. Extraction conditions to remove and valorize the lipophilic fraction were
studied (20–40 MPa and 40–80 ◦C) obtaining a maximum yield of 5.70 ± 0.07 g/100 gBSG at 80 ◦C and 40 MPa.
High pressures and temperatures resulted in higher content of total phenolic and flavonoid compounds, as well as
higher antioxidant capacity. It was observed an improvement of the enzymatic hydrolysis yield by cellulase in
the sc-CO2 treated BSG compared to the non-treated. This improvement could be partially attributed to the
removal of the lipid fraction and to morphological changes of BSG after sc-CO2. Based on this double benefit, scCO2 can play an important role on biomass valorization.
2023-03-01
2023-03-01
2022-12
info:eu-repo/semantics/article
0308-8146
http://hdl.handle.net/10259/7470
10.1016/j.foodchem.2022.133493
eng
Food Chemistry. 2022, V. 396, 133493
https://doi.org/10.1016/j.foodchem.2022.133493
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104950RB-I00/ES/VALORIZACION DE SUBPRODUCTOS MARINOS MEDIANTE TECNOLOGIAS DE FLUIDOS SUB- Y SUPERCRITICOS PARA LA OBTENCION DE BIOCOMPUESTOS VALIOSOS/
info:eu-repo/grantAgreement/Junta de Castilla y León//BU301P18//Valorización integral de subproductos de la industria agroalimentaria mediante tecnologías emergentes/ALVALOR/
info:eu-repo/grantAgreement/Junta de Castilla y León//BU050P20//Valorización de la fracción proteica de subproductos de la industria agroalimentaria de Castilla y León mediante tecnologías de fluidos presurizados/
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
Atribución 4.0 Internacional
Elsevier