NORDIC PULP & PAPER RESEARCH JOURNAL
Home » Volume 32, 2017 » Issue No. 4
SPECIAL ISSUE ON LIGNIN
On the effect of hemicellulose removal on cellulose-lignin interactions. - OPEN ACCESS
Nicola Giummarella, Gunnar Henriksson, Lennart Salmén and Martin Lawoko
Abstract
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.
Keywords
Cellulose, Hydrophobic interactions, Kraft impregnation, Lignin carbohydrate complexes, Ultrastructure, Water extraction
Pages
542-549
DOI
10.3183/NPPRJ-2017-32-04-p542-549
Full text
PDF Document N2017-32-04_p542-549_Lawoko-Salmen.pdf (2674KB)
On the effect of hemicellulose removal on cellulose-lignin interactions. - OPEN ACCESS (2017-32-04_p542-549_Lawoko-Salmen.pdf)
Nordic Pulp & Paper Research Journal (NPPRJ) is an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents, pulp and paper and including new fiber-based materials, recovery and by-products from pulping processes, bio-refining and energy issues. Articles meeting required scientific standards are accepted from any continent.
ISSN: 0283-2631