Hot compressed water pretreatment of oil palm fronds to enhance glucose recovery for production of second generation bio-ethanol.
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.
Goh
Chun Sheng
CS
School of Chemical Engineering, Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia.
Lee
Keat Teong
KT
Bhatia
Subhash
S
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
D056804:Biofuels; D010938:Plant Oils; D011134:Polysaccharides; D014867:Water; D000431:Ethanol; D000073878:Palm Oil; C007916:hemicellulose; D008031:Lignin; D014994:Xylose; D005947:Glucose