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Wood Research and Technology

Holzforschung

Cellulose – Hemicelluloses – Lignin – Wood Extractives

Editor-in-Chief: Salmén, Lennart

Editorial Board: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Burgert, Ingo / Rio, Jose C. / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Koch, Gerald / Lachenal, Dominique / Laine, Christiane / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Potthast, Antje / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Sipilä, Jussi / Takano, Toshiyuki / Tamminen, Tarja / Theliander, Hans / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi


IMPACT FACTOR 2018: 2.579

CiteScore 2018: 2.43

SCImago Journal Rank (SJR) 2018: 0.829
Source Normalized Impact per Paper (SNIP) 2018: 1.082

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1437-434X
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Volume 63, Issue 6

Issues

Activation of thermomechanical pulp by laccases as studied by UV-Vis, UV resonance Raman and FTIR spectroscopy 10th EWLP, Stockholm, Sweden, August 25–28, 2008

Anni Lähdetie
  • Department of Forest Products Technology, TKK Helsinki University of Technology, Espoo, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Tiina Liitiä / Tarja Tamminen / Jaakko Pere / Anna-Stiina Jääskeläinen
  • Department of Forest Products Technology, TKK Helsinki University of Technology, Espoo, Finland
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2009-11-15 | DOI: https://doi.org/10.1515/HF.2009.125

Abstract

The changes in lignin structure of spruce thermomechanical pulp (TMP), induced by treatment with laccase of Trametes hirsuta (ThL) and laccase of Melanocarpus albomyces (MaL), has been investigated by UV-Vis, UV resonance Raman (UVRR), and Fourier transform infrared (FTIR) spectroscopy. The spectroscopic results showed that the structural changes were small; however, the changes were slightly more pronounced in the case of MaL. Nevertheless, the brightness of the pulps remained higher after treatment with MaL than after treatment with ThL. Accordingly, MaL is a promising enzyme for fiber activation and functionalization.

Keywords: activation of fibers; FTIR spectroscopy; laccase; thermomechanical pulp (TMP); UVRR spectroscopy; UV-Vis spectroscopy

About the article

Corresponding author. Department of Forest Products Technology TKK Helsinki University of Technology, P.O. Box 6400, 02015 Espoo, Finland


Received: 2008-11-29

Accepted: 2009-04-27

Published Online: 2009-11-15

Published Online: 2009-08-06

Published in Print: 2009-11-01


Citation Information: Holzforschung, Volume 63, Issue 6, Pages 745–750, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/HF.2009.125.

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