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Original Article | Open Access

Effect of Enzyme-assisted Refining on the Properties of Bleached Softwood Pulp

YangYang Peng1, Hao Liu1, ShiYu Fu1( ), XinLiang Li2
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, Guangdong Province, 510640, China
Youtell Biochemical Co., Ltd., Yueyang, Hu'nan Province, 414009, China
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Abstract

Enzymatic pretreatment of pulp is demonstrated to be potentially effective for decreasing the energy consumption in the refining process.Herein, a neutral cellulase was utilized for the pretreatment of bleached softwood pulp in order to improve the refining performance.Cellulase pretreatment effectively improved the drainability of the pulp and could thus reduce the energy consumption in the refining process.The beating degree of the pulp was significantly improved at 6000 PFI revolutions, at which a maximum increase of 70% could be obtained.The water retention value (WRV) of the pulp increased by 17% after treatment with cellulase at a dosage of 5 IU/g, and the fibers could be easily torn apart after enzymatic treatment.To achieve the same beating degree, the refining time could be shortened by 80% when the pulp was treated with cellulase.Using a low dosage of cellulase, the freeness of the pulp increased rapidly without deterioration of the mechanical properties.

Keywords

energy consumptionphysical propertiescellulase pretreatmentrefining

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Paper and Biomaterials
Volume 3 Issue 3,
July 2018
Pages 7-15
DOI: 10.26599/PBM.2018.9260016
Cite this article:
Peng Y, Liu H, Fu S, et al. Effect of Enzyme-assisted Refining on the Properties of Bleached Softwood Pulp. Paper and Biomaterials, 2018, 3(3): 7-15. https://doi.org/10.26599/PBM.2018.9260016

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Received: 16 May 2018
Accepted: 02 June 2018
Published: 01 July 2018
© 2018 Paper and Biomaterials Editorial Board

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
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