Enzymatic Saccharification of Oil Palm Mesocarp Fiber (OPMF) Treated with Superheated Steam

Nik Anis Nik Mahmud, Azhari Samsu Baharuddin, Ezyana Kamal Bahrin, Alawi Sulaiman, Mohd Nazli Naim, Rabitah Zakaria, Mohd Ali Hassan, Haruo Nishida, Yoshihito Shirai

Abstract


The effectiveness of superheated steam pretreatment on the enzymatic saccharification of oil palm mesocarp fiber (OPMF) was investigated by varying the temperature (140 to 210 °C) and the retention time (20 to 90 minutes). The results showed that superheated steam pretreatment at 180 °C for 60 minutes is the optimum condition for enzymatic saccharification of OPMF. Scanning electron microscopy (SEM) images of the OPMF show that superheated steam pretreatment is able to remove silica bodies. Further characterization by FTIR and TG/DTG analysis of the raw and treated OPMF indicates that the solubilization and removal of hemicelluloses took place after the pretreatment. This suggested that superheated steam pretreatment is an effective method for the alteration of the OPMF structure and enhances the digestibility of the biomass, hence improving enzymatic saccharification.

Keywords


Superheated steam; Oil palm mesocarp fiber; Enzymatic saccharification

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