Wood Science and Technology

, Volume 46, Issue 1–3, pp 271–285 | Cite as

Production of hemicellulosic sugars from Pinus pinaster wood by sequential steps of aqueous extraction and acid hydrolysis

  • M. J. González-Muñoz
  • Rosana Alvarez
  • Valentín Santos
  • J. C. Parajó


Pinus pinaster wood samples were subjected to aqueous extraction at 130°C to remove extractives and to a sequential stage of hydrothermal processing under selected operational conditions to obtain hemicelluloses-free solids and liquors containing hemicelluloses-derived products (mainly oligomeric saccharides and monosaccharides). Liquors were separated from the media, supplemented with sulfuric acid (4%), and heated to cause the posthydrolysis of oligomeric saccharides to yield hemicellulosic sugars. The effects of the major operational conditions on the yields of the target products were assessed in selected experiments. The considered process enabled the recovery of hemicellulosic sugars (mannose, glucose, xylose, and galactose) at almost quantitative yields.


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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • M. J. González-Muñoz
    • 1
    • 2
  • Rosana Alvarez
    • 3
    • 4
  • Valentín Santos
    • 1
    • 2
  • J. C. Parajó
    • 1
    • 2
  1. 1.Department of Chemical Engineering, Polytechnical BuildingUniversity of Vigo (Campus Ourense), As LagoasOurenseSpain
  2. 2.CITI-University of Vigo-Tecnopole, San Ciprián de ViñasOurenseSpain
  3. 3.Department of Organic Chemistry, Faculty of ChemistryUniversity of Vigo, Lagoas-MarcosendeVigoSpain
  4. 4.Department of Organic Chemistry, Faculty of ChemistryUniversity of Vigo, Spain (Campus Ourense), As LagoasOurenseSpain

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