Abstract
Improper disposal of palm biomass wastes resulting from industrial palm oil production may contribute to the environmental issues in Indonesia. However, given their abundance and availability, empty fruit bunches (EFB) can be potentially considered as a raw material for unbleached pulp. In this study, unbleached pulp was produced from oil palm EFB by a pulping process with alkaline pretreatment. FT-IR analysis confirmed the presence of cellulose in the pulp, with absorption peaks at 3332 cm-1 corresponding to the O-H stretching and at 1029 cm-1 assigned to the stretching of the C-O-C bond, respectively. SEM images revealed the aspect of individual fibers, with a rigid appearance, in the pulp obtained from EFB biomass. The major crystalline peak was observed at 2θ of 22.41°, indicating the presence of cellulose. Brown paper was made from the unbleached pulp (A4 size, with a grammage of 134 g/m2 and a thickness of 219.3 μm) and proved to have excellent mechanical strength. Therefore, unbleached pulp from oil palm EFB can be recommended to be used in the manufacture of brown paper.
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