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On the effect of hemicellulose removal on cellulose-lignin interactions
KTH Royal Institute of Technology, Sweden.
KTH Royal Institute of Technology, Sweden.
RISE - Research Institutes of Sweden, Bioeconomy, Biorefinery and Energy.ORCID iD: 0000-0003-3534-1107
KTH Royal Institute of Technology, Sweden.
2017 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 32, no 4, p. 542-549Article in journal (Refereed) Published
Abstract [en]

In a recent study, it was suggested that there could be direct associations between cellulose and lignin in mild alkaline cooked pulps. The observation was based on studies showing that the molecular straining of lignin was similar to that of cellulose. This finding has serious ramifications for technical production of pulps as it could expand on what is known about recalcitrant lignin removal during pulping. Herein, we investigate the possible interaction between cellulose and lignin discussing possible mechanisms involved at the nano- and molecular-scales, and present support for that the removal of hemicellulose by hot water extraction or mild kraft pulping causes strong interactions between lignin and cellulose. 

Place, publisher, year, edition, pages
De Gruyter Open Ltd , 2017. Vol. 32, no 4, p. 542-549
Keywords [en]
Cellulose, Hydrophobic interactions, Kraft impregnation, Lignin carbohydrate complexes, Ultrastructure, Water extraction, Extraction, Hydrophobicity, Kraft pulp, Lignin, Hot water extraction, Lignin-carbohydrate complex, Molecular scale, Possible mechanisms, Strong interaction, Kraft Pulping, Pulps, Removal, Water Repellence
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:ri:diva-38041DOI: 10.3183/NPPRJ-2017-32-04-p542-549Scopus ID: 2-s2.0-85052682146OAI: oai:DiVA.org:ri-38041DiVA, id: diva2:1297134
Available from: 2019-03-19 Created: 2019-03-19 Last updated: 2019-03-20Bibliographically approved

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Salmen, Lennart

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