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On the effect of hemicellulose removal on cellulose-lignin interactions
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0003-4266-0720
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.
Rise Bioecon, Drottning Kristinas Väg 61,Box 5604, SE-11486 Stockholm, Sweden.
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0002-8614-6291
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
AB Svensk Papperstidning , 2017. Vol. 32, no 4, p. 542-549
Keywords [en]
Cellulose, Lignin Carbohydrate Complexes, Ultrastructure, Hydrophobic interactions, Water extraction, kraft impregnation
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-220877DOI: 10.3183/NPPRJ-2017-32-04-p542-549ISI: 000418122100006OAI: oai:DiVA.org:kth-220877DiVA, id: diva2:1171517
Funder
Knut and Alice Wallenberg Foundation
Note

QC 20180108

Available from: 2018-01-08 Created: 2018-01-08 Last updated: 2018-05-31Bibliographically approved

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Giummarella, NicolaHenriksson, GunnarLawoko, Martin

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