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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/13278
Title: Improving the material efficiency of recycled furnish for papermaking through enzyme modifications
Authors: Verma P.K.
Bhardwaj N.K.
Singh S.P.
Published in: Canadian Journal of Chemical Engineering
Abstract: Fibre fines and fibrils within recycled cellulosic pulp have high amorphous cellulose content. These fines, having a high surface area, restrict the free drainage of water and retain bound water within the pressed sheet but contribute little to the hydrogen bonding potential of the fibre slurry. The advantage of higher freeness, achieved by selective hydrolysis of excess fines through enzymes, can be used for enhancement of the drainage rate, leading to increased paper production. In this study, monocomponent cellulase treatment of recycled pulp for drainage improvement as a result of selective and controlled hydrolysis is investigated. The effectiveness of specific types of enzyme activity, endoglucanase or cellobiohydrolase, is studied. The increased solubilization of amorphous cellulose mediated by endoglucanase treatments improved pulp drainability by 11-25%, along with providing better paper properties such as tensile index and smoothness. © 2015 Canadian Society for Chemical Engineering.
Citation: Canadian Journal of Chemical Engineering (2016), 94(3): 430-438
URI: https://doi.org/10.1002/cjce.22410
http://repository.iitr.ac.in/handle/123456789/13278
Issue Date: 2016
Publisher: Wiley-Liss Inc.
Keywords: Cellulase enzyme
Endoglucanase
Hydrolysis
Pulp drainage
Recycled pulp
ISSN: 84034
Author Scopus IDs: 56305847100
55954738000
7407864677
Author Affiliations: Verma, P.K., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Bhardwaj, N.K., Avantha Centre for Industrial Research and Development, Yamuna Nagar, 135 001, India
Singh, S.P., Department of Paper Technology, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India
Corresponding Author: Bhardwaj, N.K.; Avantha Centre for Industrial Research and DevelopmentIndia; email: nishi.bhardwaj@gmail.com
Appears in Collections:Journal Publications [PT]

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