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Wood Science and Technology

, Volume 21, Issue 1, pp 65–74 | Cite as

Studies on the utilization of Pinus pinaster bark

Part 1: Chemical constituents
  • G. Vázquez
  • G. Antorrena
  • J. C. Parajó
Article
  • 121 Downloads

Summary

The chemical constituents of Pinus pinaster bark are studied, as a first step of a study devoted to its benefit. The analyzed samples showed an average content of 0.5% ash, 2.5% waxes (measured as the hexane and benzene soluble fractions), 39.3% of soluble materials in polar organic solvents, water and NaOH solutions, 28.9% polysaccharides (roughly half corresponding to cellulose), 29.6% Klason lignin, 59.7% aromatic content and 1.0% suberin. The fraction with potential utility, formed by formaldehyde-condensable polyphenols and polysaccharides, is over 60 weight percent of bark. The results are compared with those determined for other pine species.

Keywords

Cellulose Benzene Hexane Lignin Polysaccharide 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • G. Vázquez
    • 1
  • G. Antorrena
    • 1
  • J. C. Parajó
    • 1
  1. 1.Chemical Engineering Department Faculty of ChemistryUniversity of SantiagoSantiago de CompostelaSpain

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