Use of Purified Enzymes in Mechanical Pulping, 1996 Pulping Conference Proceedings
Pere J
Siika-aho M
Viikari L
VTT Biotechnology and Food Research
Liukkonen S
Gullichsen J
Helsinki University of Technology
Coarse TMP pulp (CSF 400-700 ml) was treated with monocomponent cellulases and hemicellulases prior to secondary refinings in laboratory scale. The susceptibility of coarse mechanical pulp to enzymatic hydrolysis was low and the weight loss due to various treatments was typically between 0.2 and 0.5%. On the basis of energy savings and handsheet properties one cellulase, cellobiohydrolase I (CBH I), was shown to be superior to the other enzymes tested. In laboratory scale experiments CBH I resulted in energy savings of 20-40% as compared with the untreated control. Good pulp quality was obtained and no deterioration of handsheet strength or optical properties was observed. The results obtained with CBH I in laboratory scale were further verified succesfully in pilot scale.
Use of Purified Enzymes in Mechanical Pulping, 1996 Pulping Conference Proceedings
