期刊
BIORESOURCE TECHNOLOGY
卷 181, 期 -, 页码 263-269出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.01.072
关键词
Oil palm mesocarp fiber; Hydrothermal pretreatment; Hot compressed water; Wet disk milling pretreatment of biomass; Enzymatic hydrolysis
资金
- Science and Technology Research Partnership for Sustainable Development (SATREPS)
- Japan International Cooperation Agency (JICA)
- Japan Science and Technology Agency (JST)
Eco-friendly pretreatment methods for lignocellulosic biomass are being developed as alternatives to chemical based methods. Superheated steam (SHS), hot compressed water (HCW) and wet disk milling (WDM) were used individually and with combination to partially remove hemicellulose and alter the lignin composition of recalcitrant structure of oil palm mesocarp fiber (OPMF). The efficiency of the pretreatment methods was evaluated based on the chemical compositions altered, SEM analysis, power consumption and degree of enzymatic digestibility. Hemicellulose removal (94.8%) was more pronounced under HCW compared to SHS, due to maximal contact of water and production of acetic acid which enhanced further degradation of hemicellulose. Subsequent treatment with WDM resulted in defibrillation of OPMF and expansion of the specific surface area thus increasing the conversion of cellulose to glucose. The highest glucose yield was 98.1% (g/g-substrate) when pretreated with HCW (200 degrees C, 20 min) and WDM which only consumed 9.6 MJ/kg of OPMF. (C) 2015 Elsevier Ltd. All rights reserved.
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