Abstract—Sodium hydroxide pretreatment of oil palm mesocarp fiber (OPMF) was carried out with NaOH from 2% to 10% (w/v) at temperature 500C and 700C. The performances of pretreatments were evaluated based on total carbohydrate and reducing sugar including glucose, xylose and arabinose after enzymatic hydrolysis on the pretreated biomass. It was found that the enzymatic hydrolysis had significantly improved when 6% NaOH in 700C applied in the pretreatment process. The highest total reducing sugars produced by means of commercial enzymes was achieved with the overall conversions of glucan and xylan of 87% and 60.73% respectively. The compositions of OPMF in this study are as follows (% g/g dry biomass): glucan, 28.8, xylan, 25.3, arabinan, 1.91, ethanol extractive, 6.32 and ash, 2.60.
Index Terms—Enzymatic hydrolysis, glucose, NaOH pretreatment, oil palm mesocarp fiber.
Nur Izzati Iberahim, Jamaliah Md Jahim, and Shuhaida Harun are with the Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia. (e-mail:nurizzatiberahim@gmail.com, jamal@eng.ukm.my, suhaida@eng.ukm.my)
Mohd Tusirin Mohd Nor is with the UKM-YSD-Chair for Sustainable Development of Palm Oil Processing, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia. (e-mail: tusirin@eng.ukm.my)
Osman Hassan is with the School of Chemical Sciences and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia (UKM), 43600 Bangi, Selangor, Malaysia. (e-mail: osman@pkrisc.cc.ukm.my)
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Cite:Sodium Hydroxide Pretreatment and Enzymatic Hydrolysis of Oil Palm Mesocarp Fiber, "Nur Izzati Iberahim, Jamaliah Md Jahim, Shuhaida Harun, Mohd Tusirin Mohd Nor, and Osman Hassan," International Journal of Chemical Engineering and Applications vol. 4, no. 3, pp. 101-105, 2013.
