RT info:eu-repo/semantics/article
T1 Valorization of brewer’s spent grain by consecutive supercritical carbon dioxide extraction and enzymatic hydrolysis
A1 Alonso Riaño, Patricia
A1 Melgosa Gómez, Rodrigo
A1 Trigueros Andrés, Ester
A1 Illera Gigante, Alba Ester
A1 Beltrán Calvo, Sagrario
A1 Sanz Díez, Mª Teresa
K1 Biorefinery
K1 Brewer's spent grain
K1 Supercritical fluid extraction
K1 Enzymatic hydrolysis
K1 Biología
K1 Biology
K1 Ingeniería química
K1 Chemical engineering
AB 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 werestudied (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 ashigher antioxidant capacity. It was observed an improvement of the enzymatic hydrolysis yield by cellulase inthe sc-CO2 treated BSG compared to the non-treated. This improvement could be partially attributed to theremoval 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.
PB Elsevier
SN 0308-8146
YR 2022
FD 2022-12
LK http://hdl.handle.net/10259/7470
UL http://hdl.handle.net/10259/7470
LA eng
NO This work was supported by the Agencia Estatal de Investigación [grant number PID2019-104950RB-I00 / AEI / https://doi.org/10.130 39/501100011033] and the Junta de Castilla y León (JCyL) and the European Regional Development Fund (ERDF) [grant numbers BU301P18 and BU050P20]. E. Trigueros and P. Alonso-Riano ˜ predoctoral contracts were funded by JCyL and the European Social Fund (ESF) by ORDEN EDU/574/2018, de 28 de mayo and ORDEN EDU/556/2019, de 5 de junio, respectively.
DS Repositorio Institucional de la Universidad de Burgos
RD 07-may-2024