2026-09-15T22:32:25Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/74702023-04-17T09:20:48Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

00925njm 22002777a 4500 dc Alonso Riaño, Patricia author Melgosa Gómez, Rodrigo author Trigueros Andrés, Ester author Illera Gigante, Alba Ester author Beltrán Calvo, Sagrario author Sanz Díez, Mª Teresa author 2022-12 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. 0308-8146 http://hdl.handle.net/10259/7470 10.1016/j.foodchem.2022.133493 Biorefinery Brewer's spent grain Supercritical fluid extraction Enzymatic hydrolysis Valorization of brewer’s spent grain by consecutive supercritical carbon dioxide extraction and enzymatic hydrolysis