期刊
BIORESOURCE TECHNOLOGY
卷 282, 期 -, 页码 525-529出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.03.065
关键词
Oil palm empty fruit bunch; Deep eutectic solvent; Pretreatment; Lignocellulosic biomass; Choline chloride; Enzymatic hydrolysis
资金
- UCSI University Pioneer Scientist Incentive Fund [Proj-In-FETBE-043]
In this work, a novel solvent, deep eutectic solvent (DES) was applied to examine its effectiveness in pretreating OPEFB. Three types of DESs, i.e. choline chloride-lactic acid (ChCl-LA), choline chloride-urea (ChCl-U) and choline chloride-glycerol (ChCl-G) were investigated. The pretreatment performance was based on cellulose digestibility, structural and morphology changes. At molar ratio of 1:2, ChCl-LA attained the highest reducing sugars yield of 20.7%, followed by ChCl-G (20.0%) and ChCl-U (16.9%). FT-IR and SEM results further confirmed the outstanding ability of ChCl-LA due of its ability in cellulose, hemicellulose and lignin disruption, exposing its cellulose fraction to enzymatic hydrolysis. ChCl-LA is also more favorable compare to acid and alkaline solvents as it could prevent sugars loss, use of expensive corrosion resistant equipment and ease products separation.
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