Biorefining of Chemical Pulp by Using Cellulase
Hendro Risdianto, Wibian Fajar Irianto

Center for Pulp and Paper, MInistry of Industry
Jl. Raya Dayeuhkolot 132, Bandung, West Java, INDONESIA

Abstract

Refining in the paper industry is a process that energy consumed. Enzyme treatment can be used to reduce energy. In this study, cellulase was enzyme used for pulp pretreatment prior to refining in order to reduce the processing time. Cellulase dose of 2-5% was investigated in this study. The result showed that all cellulase treatment can reduce the processing time of refining at a freeness target of 40 SR compared to without cellulase treatment. The dose of 4% resulted in the most significant reduction in the processing time of refining. The cellulase pretreatment did not show a significant effect on pulp sheet quality i.e brightness, opacity, tensile strength, smoothness, and elongation.

Keywords: cellulase, freeness, processing time, refining

Topic: INDUSTRIAL BIOTECHNOLOGY AND BIOPROCESSING