Publication: Hydrothermal pretreatment optimization and deep eutectic solvent pretreatment of lignocellulosic biomass: An integrated approach
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Issued Date
2022
Resource Type
Language
eng
File Type
application/pdf
ISSN
2589014X
Rights Holder(s)
มหาวิทยาลัยศรีนครินทรวิโรฒ
Bibliographic Citation
Bioresource Technology Reports. Vol 17, No. (2022)
Suggested Citation
Gundupalli M.P., Tantayotai P., Panakkal E.J., Chuetor S., Kirdponpattara S., Thomas A.S.S., Sharma B.K., Sriariyanun M. Hydrothermal pretreatment optimization and deep eutectic solvent pretreatment of lignocellulosic biomass: An integrated approach. Bioresource Technology Reports. Vol 17, No. (2022). doi:10.1016/j.biteb.2022.100957 Retrieved from: https://hdl.handle.net/20.500.14740/10237
Abstract
The combined effect of hydrothermal (HT) and deep eutectic solvent (DES) pretreatment on hemicellulose and lignin removal was studied to enhance cellulose digestibility during saccharification. The operating conditions (water loading and time) for HT pretreatment of sugarcane bagasse (SB) were optimized using response surface methodology (RSM). The SB optimum conditions were applied to other biomass with similar lignin and hemicellulose composition (rice straw (RS) and napier grass (NG)). The HT solids were further subjected to DES pretreatment using ChCl/LA (1:2). The pretreatment efficiency was compared between untreated, HT, ChCl/LA, and HT-ChCl/LA treated solids based on the glucose yield during saccharification. The hemicellulose recovery and delignification were higher in HT-ChCl/LA solids compared to HT and ChCl/LA solids. During saccharification (72 h) of HT- ChCl/LA solids, the glucose yield increased 3.1, 3.4, and 2.9-times for SB, RS, and NG, respectively. Hemicellulose and lignin obtained at different pretreatment stages could benefit the biorefineries. © 2022 Elsevier Ltd