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Publication Date:
August 2006
ISSN:
1437-434X
DOI:
10.1515/HF.2006.085

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Holzforschung

International Journal of the Biology, Chemistry, Physics, and Technology of Wood

Editor-in-Chief: Faix, Oskar

Editorial Board Member: Daniel, Geoffrey / Militz, Holger / Rosenau, Thomas / Salmen, Lennart / Sixta, Herbert / Vuorinen, Tapani / Argyropoulos, Dimitris S. / Balakshin, Yu / Barnett, J. R. / Berry, Richard / Burgert, Ingo / Evans, Robert / Evtuguin, Dmitry V. / Frazier, Charles E. / Fukushima, Kazuhiko / Gellerstedt, Göran / Gindl-Altmutter, Wolfgang / Glasser, W. G. / Heitner, Cyril / Holmbom, Bjarne / Isogai, Akira / Kadla, John F. / Kleen, Marjatta / Koch, Gerald / Lachenal, Dominique / Mansfield, Shawn D. / Morrell, J.J. / Niemz, Peter / Pizzi, Antonio / Ragauskas, Arthur J. / Ralph, John / Rice, Robert W. / Salin, Jarl-Gunnar / Schmitt, Uwe / Schultz, Tor P. / Schwanninger, Manfred / Sipilä, Jussi / Tamminen, Tarja / Viikari, Liisa / Welling, Johannes / Willför, Stefan / Yoshihara, Hiroshi

8 Issues per year

Increased IMPACT FACTOR 2011: 1.748
5-year IMPACT FACTOR: 1.838
Rank 2 out of 21 in category Materials Science, Paper & Wood and 10 out of 59 in category Forestry in the 2011 Thomson Reuters Journal Citation Report/Science Edition.

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Issues

Studies on the dehydrogenative polymerizations of monolignol β-glycosides. Part 2: Horseradish peroxidase-catalyzed dehydrogenative polymerization of isoconiferin

Yuki Tobimatsu1 / Toshiyuki Takano2 / Hiroshi Kamitakahara3 / Fumiaki Nakatsubo4

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Corresponding author. Division of Forest & Biomaterials Science, Graduate School of Agriculture, Kyoto University, Sakyo-ku 606-8502, Japan Phone: +81-75-7536255 Fax: +81-75-7536300

Citation Information: Holzforschung. Volume 60, Issue 5, Pages 513–518, ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: 10.1515/HF.2006.085, August 2006

Publication History:
Received:
January 18, 2006
Accepted:
June 14, 2006
Published Online:
2006-08-16

Abstract

Dehydrogenative polymerization of isoconiferin (IC; coniferyl alcohol γ-O-β-D-glucopyranoside) catalyzed by horseradish peroxidase (HRP) was carried out. The polymerization of IC proceeded in a homogeneous system, resulting in a water-soluble dehydrogenation polymer (IC-DHP). The degree of polymerization (DP) of IC-DHP was significantly higher than that of a standard dehydrogenative polymer (CA-DHP) obtained from coniferyl alcohol (CA) in a heterogeneous system. Under optimum conditions, the DP of IC-DHP was 44 (M n=1.5×104), whereas that for CA-DHP was only 11 (M n=3.0×103, as acetate). Spectroscopic analyses confirmed that IC-DHP has a lignin-like structure containing D-glucose moieties attached to the lignin side-chains. The D-glucose unit introduced into γ-O position of CA essentially influenced the water solubility and molecular mass of the resulting DHP.

Keywords: coniferyl alcohol; dehydrogenation polymer (DHP); dehydrogenative polymerization; enzymatic polymerization; horseradish peroxidase (HRP); isoconiferin; monolignol β-d-glucoside

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