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Title: An experimental study of the effect of enzyme-assisted refining on energy consumption and paper properties for mixed hardwood pulp
Authors: Singh R.
Bhardwaj N.K.
Choudhury, Bijan
Published in: Appita Journal
Abstract: Effects of enzyme pretreatment on energy consumption during refining and also on the pulp/paper quality were evaluated. A commercial enzyme liquid formulation was used to study the refining process of bleached mixed hardwood pulp at different doses and reaction times. Enzymes can improve as well as degrade fibre properties, depending on the treatment conditions. At an enzyme dose of 0.06 lU/g o.d. (international unit per gram oven-dry) pulp and 2 h reaction time, 18% reduction in refining energy to reach CSF 300±10 was achieved. The enzyme pretreatment affected web consolidation and also improved the paper strength properties tensile index and burst index by 15% and 13%, respectively. This improvement is mainly due to enhancement of interfibre bondings as revealed by scanning electron microscope (SEM) image analysis.
Citation: Appita Journal (2014), 67(3): 226-231
Issue Date: 2014
Publisher: Appita Inc.
Keywords: Cellulase
Energy consumption
ISSN: 10386807
Author Scopus IDs: 57215037777
Author Affiliations: Singh, R., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur-247001, U.P., India
Bhardwaj, N.K., Avantha Centre for Industrial Research and Development, Yamuna Nagar-135001, Haryana, India
Choudhury, B., Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee-247667, U.K., India
Corresponding Author: Bhardwaj, N.K.; Avantha Centre for Industrial Research and Development, Yamuna Nagar-135001, Haryana, India; email:
Appears in Collections:Journal Publications [BT]

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