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Hemicellulose and hexenuronic acid removal selectivity to give boosting effect to ECF bleaching

IOP conference series. Materials Science and Engineering, 2021-02, Vol.1034 (1), p.12040 [Peer Reviewed Journal]

2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1757-8981 ;EISSN: 1757-899X ;DOI: 10.1088/1757-899X/1034/1/012040

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  • Title:
    Hemicellulose and hexenuronic acid removal selectivity to give boosting effect to ECF bleaching
  • Author: Trismawati ; Nanlohy, Hendry Y. ; Zainal, A ; Wikanaji, D. ; Setiyo, Muji
  • Subjects: Bleaching ; Brightness ; Carbohydrates ; Cooking ; Enzymes ; Eucalyptus ; Hydrogen bonds ; Lignin ; Selectivity ; Sodium carbonate ; Wood chips ; Wood pulp ; Xylanase
  • Is Part Of: IOP conference series. Materials Science and Engineering, 2021-02, Vol.1034 (1), p.12040
  • Description: Abstract Varies wood structure need difference way of treatment to get the appropriate quality of wood pulp. In pulp industry, wood chips should be cooked and bleached in order to have a good quality of pulp suitable for paper industry. A modified pulp cooking such as Continuous Isothermal Cooking and Super Batch Cooking followed by ECF bleaching is a good alternative for the achievement the necessary standard quality. Effort to achieve better quality in higher yield has so many times been done. Enzyme treatment using xylanase using Ecopuylp TX-200 is a good alternative that could be done in the ECF bleaching stage. Two kinds of unbleached wood pulp from Eucalyptus camaldulensis from AA Thailand, Acacia mangium from RAPP Indonesia is used in this experiment. The bleaching results are analysed for yield, viscosity, hexenuronic acid content, and brightness. The results give an indication that wood structure has a close correlation with the accessibility of enzyme and chemistries in giving peeling effect of lignin from lignin carbohydrate complex (LCC) to get high brightness of pulp with minimum fibre losses. The presence of Na 2 CO 3 in the cooking liquor to gather with the xylanase has positive effect in the cleavage of hemicellulose and lignin through hydrogen bond at – OCH 3 .
  • Publisher: Bristol: IOP Publishing
  • Language: English
  • Identifier: ISSN: 1757-8981
    EISSN: 1757-899X
    DOI: 10.1088/1757-899X/1034/1/012040
  • Source: IOP Publishing Free Content
    GFMER Free Medical Journals
    ProQuest Central
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