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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. / 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

12 Issues per year


IMPACT FACTOR 2016: 1.868
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CiteScore 2016: 1.83

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1437-434X
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Volume 66, Issue 5 (Jul 2012)

Issues

Extracting value-added products before pulping: Hemicellulosic ethanol from Eucalyptus globulus wood

Julio Rodríguez-López
  • Department of Chemical Engineering, Polytechnical Building, University of Vigo (Campus Ourense), 32004 Ourense, Spain
  • CITI, Avda. Galicia, n° 2, Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain
  • Other articles by this author:
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/ Aloia Romaní
  • Department of Chemical Engineering, Polytechnical Building, University of Vigo (Campus Ourense), 32004 Ourense, Spain
  • CITI, Avda. Galicia, n° 2, Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ María J. González-Muñoz
  • Department of Chemical Engineering, Polytechnical Building, University of Vigo (Campus Ourense), 32004 Ourense, Spain
  • CITI, Avda. Galicia, n° 2, Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain
  • Other articles by this author:
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/ Gil Garrote
  • Department of Chemical Engineering, Polytechnical Building, University of Vigo (Campus Ourense), 32004 Ourense, Spain
  • CITI, Avda. Galicia, n° 2, Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain
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  • De Gruyter OnlineGoogle Scholar
/ Juan C. Parajó
  • Corresponding author
  • Department of Chemical Engineering, Polytechnical Building, University of Vigo (Campus Ourense), 32004 Ourense, Spain
  • CITI, Avda. Galicia, n° 2, Tecnopole, San Cibrao das Viñas, 32900 Ourense, Spain
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Published Online: 2012-03-15 | DOI: https://doi.org/10.1515/hf-2011-0204

Abstract

Xylose solutions have been produced from Eucalyptus globulus wood by autohydrolysis (with hot, compressed water) and post-hydrolysis (in presence of sulfuric acid). This two-stage process led to solids enriched in cellulose and lignin (suitable as a substrate for pulping) and liquors containing xylose as the major component. The liquid phase from post-hydrolysis also contained other sugars (glucose, arabinose) and acetic acid. Neutralized liquors (as obtained, or after membrane concentration), were employed (directly or after detoxification by ion exchange) as fermentation media for the production of hemicelluosic bioethanol with the yeast Pichia stipitis CECT 1922T. Under the best conditions assayed (fermentation of neutralized, concentrated and detoxified two-stage hydrolysis liquors), bioconversion took place at nearly stoichiometric yield, with a volumetric productivity of 0.37 g l-1·h-1.

Keywords: ethanol; Eucalyptus globulus; fermentation; hemicelluloses; Pichia stipitis

About the article

Corresponding author. Department of Chemical Engineering, Polytechnical Building, Campus Ourense, University of Vigo. 32004, Ourense, Spain


Received: 2011-10-08

Accepted: 2012-02-21

Published Online: 2012-03-15

Published in Print: 2012-07-01


Citation Information: , ISSN (Online) 1437-434X, ISSN (Print) 0018-3830, DOI: https://doi.org/10.1515/hf-2011-0204.

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©2012 by Walter de Gruyter Berlin Boston. Copyright Clearance Center

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