chemical composition density fast growing wood fiber characteristic pulp and paper Chemical Engineering Civil Engineering Computer Engineering Electrical and Electronics Materials Science and Engineering Mechanical Engineering Metallurgy Ocean Engineering Sakarifikasi Structural Engineering jamur pelapuk pelepah kelapa sawit pretreatment tandan kosong kelapa sawit - : adsorption Biomaterial Chemistry Citarum water river Kraft pulping; cooking liquor; bleaching sequence; pulp properties adhesive adsorbents changes of structural characteristics enzymatic saccharification functional groups lignin microwave-assisted oxalic acid pretreatment natural rubber latex oil palm empty fruit bunch oil palm empty fruit bunches oil palm frond plywood pore size reducing sugar sengon wood temperature white-rot fungi