RT Journal Article
T1 Manufacturing of hemicellulosic oligosaccharides from fast-growing Paulownia wood via autohydrolysis: Microwave versus conventional heating
A1 Garcia Del Rio, Pablo
A1 Perez Perez, Alba
A1 Garrote Velasco, Gil
A1 Gullon Estevez, Beatriz
K1 3303.03 Procesos Químicos
K1 2403 Bioquímica
AB Microwave hydrothermal treatment (MHT) is considered a sustainable technology for the valorization of lignocellulosic materials, enabling the solubilization of hemicellulosic-derived compounds, especially in the form of oligosaccharides that may present potential in the chemical, pharmaceutical or nutraceutical industries. Hence, MHT at 200 and 230 °C, at severity (S0) among 2.92–4.66 were performed. S0 = 3.98 permitted the recovery of about 80% of the initial xylan as xylooligosaccharides. In order to compare the effectiveness of MHT, conventional hydrothermal treatment (CHT) was performed at conditions leading to the maximum recovery of oligosaccharides (S0 =3.98, non-isothermal regime at 203 °C). Despite the structural features of oligomers in the three liquors were very similar, the spent solids presented different enzymatic digestibility, which implied a different effect of the treatments, reaching up to 80% of glucan to glucose conversion for the solid after MHT at 230 °C for 0.5 min. Additionally, CHT consumed 2.1–2.8-fold greater energy than MHT, reflecting that microwave-assisted autohydrolysis is a sustainable and efficient technology to process PW.
PB Industrial Crops and Products
SN 09266690
YR 2022
FD 2022-11
LK http://hdl.handle.net/11093/3726
UL http://hdl.handle.net/11093/3726
LA eng
NO Industrial Crops and Products, 187, 115313 (2022)
NO Financiado para publicación en acceso aberto: Universidade de Vigo/CISUG
NO Agencia Estatal de Investigación | Ref. PID2019-110031RB-I00
DS Investigo
RD 04-dic-2024