PHYSICOCHEMICAL PROPERTY CHANGES OF OIL PALM MESOCARP FIBERS TREATED WITH HIGH-PRESSURE STEAM

Noor Seribainun Hidayah Md Yunos, Azhari Samsu Baharuddin, Khairul Faezah Md Yunos, M. Nazli Naim, Haruo Nishida

Abstract


High-pressure steam treatment (HPST) is a potential alternative method for the modification of lignocellulosic materials. The effect of HPST on oil palm mesocarp fibers (OPMF) was successfully investigated with treatment conditions of 170 ºC/ 0.82 MPa, 190 ºC/ 1.32 MPa, 210 ºC/ 2.03 MPa, and 230 ºC/ 3.00 MPa for 2 min. treatment time. Significant changes in the colour, smell, and mechanical properties of the samples were observed after the treatment. Scanning electron microscope (SEM) images revealed changes in the surface morphology of the OPMF after the pretreatment. The degradation of hemicelluloses and changes in the functional groups of the lignocellulosic components were identified using Fourier Transform Infrared (FTIR) and Thermogravimetric (TG) analysis. These results suggest that HPST is a promising method for the pretreatment of OPMF.

Keywords


High pressure steam; Lignocellulosic materials; Oil palm mesocarp fiber; Physicochemical properties

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