RT Journal Article T1 Organosolv processing of vine shoots: fractionation and conversion of hemicellulosic sugars into platform chemicals by microwave irradiation A1 Rivas Siota, Sandra A1 Lopez Caamaño, Laura A1 Vila Babarro, Carlos A1 Parajó Liñares, Juan Carlos K1 3302.90 Ingeniería Bioquímica K1 3303.03 Procesos Químicos AB Vine shoots were subjected to a mild aqueous extraction (to remove water-soluble extractives), and the extracted solids were reacted in catalyzed media (containing water and 1-butanol) to achieve the one-stage solubilization of lignin and hemicelluloses, yielding a cellulose-rich solid. Operating in a microwave-heated reactor under optimized conditions (190 °C in media containing 2% of catalyst and 52% 1-butanol), 67.8% lignin was dissolved, and solids containing 75% cellulose were obtained. Lignin was recovered from the reaction medium and characterized, whereas the hemicellulose-derived products present in the aqueous phase (obtained under conditions leading to maximum concentrations of 17.7 g pentoses/L) were converted into furfural at 64.6% molar yield by acidic processing in the presence of recycled 1-butanol. PB Bioresource Technology SN 09608524 YR 2021 FD 2021-12 LK http://hdl.handle.net/11093/2564 UL http://hdl.handle.net/11093/2564 LA eng NO Bioresource Technology, 342, 125967 (2021) NO Financiado para publicación en acceso aberto: Universidade de Vigo/CISUG NO Deputación de Ourense | Ref. INOU20-03A DS Investigo RD 20-abr-2025