Journal
BIORESOURCE TECHNOLOGY
Volume 101, Issue 19, Pages 7362-7367Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2010.04.048
Keywords
Biofuel; Lignocellulose pretreatment; Sugar recovery; Response surface methodology; Optimization
Funding
- Ministry of Higher Education [6071162]
- Universiti Sains Malaysia [814021, 8021016]
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This work presents the pretreatment of oil palm fronds (OPF) using hot compressed water (HCW) to enhance sugar recovery in enzymatic hydrolysis. A central, composite rotatable design was used to optimize the effect of reaction temperature, reaction time and liquid-solid ratio on the pretreatment process. All variables were found to significantly affect the glucose yield. A quadratic polynomial equation was used to model glucose yield by multiple regression analysis, using response surface methodology (RSM). Using a 10 bar pressurized reactor, the optimum conditions for pretreatment of OPF were found at 178 degrees C, 11.1 min and a liquid-solid ratio of 9.6. The predicted glucose yield was 92.78 wt.% at the optimum conditions. Experimental verification of the optimum conditions gave a glucose yield in good agreement with the estimated value of the model. (C) 2010 Elsevier Ltd. All rights reserved.
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