title: Hot compressed water pretreatment of oil palm fronds to enhance glucose recovery for production of second generation bio-ethanol.
abstract: 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.
authors.affiliation: School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
authors.forename: Chun Sheng
authors.initials: CS
authors.lastname: Goh
authors.forename: Keat Teong
authors.initials: KT
authors.lastname: Lee
authors.forename: Subhash
authors.initials: S
authors.lastname: Bhatia
mesh_terms: D000704:Analysis of Variance; D056804:Biofuels / Q000032:analysis*; D000431:Ethanol / Q000378:metabolism*; D005947:Glucose / Q000032:analysis / Q000302:isolation & purification*; D006358:Hot Temperature; D008031:Lignin / Q000032:analysis; D008956:Models, Chemical; D000073878:Palm Oil; D018515:Plant Leaves / Q000187:drug effects*; D010938:Plant Oils / Q000737:chemistry*; D011134:Polysaccharides / Q000032:analysis; D012044:Regression Analysis; D014867:Water / Q000494:pharmacology*; D014994:Xylose / Q000032:analysis
chemical_list: D056804:Biofuels; D010938:Plant Oils; D011134:Polysaccharides; D014867:Water; D000431:Ethanol; D000073878:Palm Oil; C007916:hemicellulose; D008031:Lignin; D014994:Xylose; D005947:Glucose