skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Xylan extraction strategies and the performance of the resulting high purity cellulose fiber to swelling and dissolution

Carbohydrate polymer technologies and applications, 2022-06, Vol.3, p.100196, Article 100196 [Peer Reviewed Journal]

2022 The Authors ;Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 2666-8939 ;EISSN: 2666-8939 ;DOI: 10.1016/j.carpta.2022.100196

Full text available

Citations Cited by
  • Title:
    Xylan extraction strategies and the performance of the resulting high purity cellulose fiber to swelling and dissolution
  • Author: Ngene, Gloria I. ; Roux, Jean-Claude ; Lachenal, Dominique
  • Subjects: Cellulose dissolution ; Cellulose fiber swelling ; Chemical and Process Engineering ; Chemical Sciences ; Cold caustic extraction ; Dissolving pulp ; Engineering Sciences ; Material chemistry ; Mechanical refining ; Paper-grade pulp ; Xylanase treatment
  • Is Part Of: Carbohydrate polymer technologies and applications, 2022-06, Vol.3, p.100196, Article 100196
  • Description: In this study, we investigated the influence of hemicelluloses removal treatment on the reactivity of the resulting pulp. The idea was to develop treatment strategies consisting of mechanical refining (different refining technologies), chemical treatment (CCE), and xylanase treatment that enabled both quantitative xylan removal as well as good reactivity to dissolution without the need for additional post-extraction treatments (cellulose activation) to improve reactivity. Cellulose post-extraction treatments result in additional production costs. The reactivity of the extracted pulps was evaluated based on the degree of swelling in NaOH and dilute cupriethylene diamine solution (CUEN), the solubility in 8% NaOH at -10 °C, and the Fock reactivity. The result obtained showed that hemicelluloses removal strategies that included mechanical refining treatment led to better pulp reactivity than unrefined pulp. The best result was obtained with refined pulp extracted with 6% soda (cellulose II not detected). In addition, we obtained a Fock reactivity ranging from 60 to 70%. The good correlations found between fiber swelling, solubility in caustic soda, and Fock reactivity suggest that the tedious Fock test could be substituted by the much simpler swelling and solubility measurements. The negative impact of cellulose II on pulp reactivity is due to the higher number of hydrogen bonds formed under dewatering and drying. This problem would most likely be averted in the ideal case where pulp dissolution is integrated into the pulp mill. [Display omitted]
  • Publisher: Elsevier Ltd
  • Language: English
  • Identifier: ISSN: 2666-8939
    EISSN: 2666-8939
    DOI: 10.1016/j.carpta.2022.100196
  • Source: DOAJ Directory of Open Access Journals
Back to results list
Go to Previous pagePrevious Result  4 NextGo to Next page
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait