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Mode of action of brown rot decay resistance in modified wood: a review

  • Rebecka Ringman EMAIL logo , Annica Pilgård , Christian Brischke and Klaus Richter
Published/Copyright: August 15, 2013

Abstract

Chemically or physically modified wood materials have enhanced resistance to wood decay fungi. In contrast to treatments with traditional wood preservatives, where the resistance is caused mainly by the toxicity of the chemicals added, little is known about the mode of action of nontoxic wood modification methods. This study reviews established theories related to resistance in acetylated, furfurylated, dimethylol dihydroxyethyleneurea-treated, and thermally modified wood. The main conclusion is that only one theory provides a consistent explanation for the initial inhibition of brown rot degradation in modified wood, that is, moisture exclusion via the reduction of cell wall voids. Other proposed mechanisms, such as enzyme nonrecognition, micropore blocking, and reducing the number of free hydroxyl groups, may reduce the degradation rate when cell wall water uptake is no longer impeded.


Corresponding author: Rebecka Ringman, SP Technical Research Institute of Sweden, Wood Technology, Box 857, SE-501 15 Borås, Sweden, e-mail:

The authors gratefully acknowledge financial support from The Swedish Research Council Formas 213-2011-1481 and Gry Alfredsen for useful discussions.

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Received: 2013-4-2
Accepted: 2013-7-23
Published Online: 2013-08-15
Published in Print: 2014-02-01

©2014 by Walter de Gruyter Berlin Boston

Articles in the same Issue

  1. Masthead
  2. Masthead
  3. Review
  4. Mode of action of brown rot decay resistance in modified wood: a review
  5. Original Articles
  6. Photoyellowing of chemically modified chemithermomechanical pulps (CTMP) from Eucalyptus globulus under various atmospheres
  7. Selective purification of bleached spruce TMP process water by induced air flotation (IAF)
  8. Evaluation of the effects of compression combined with heat treatment by nanoindentation (NI) of poplar cell walls
  9. Measured temperature and moisture profiles during thermal modification of beech (Fagus sylvatica L.) and spruce (Picea abies L. Karst.) wood
  10. Modeling the influence of thermal modification on the electrical conductivity of wood
  11. Spruce fiber properties after high-temperature thermomechanical pulping (HT-TMP)
  12. Efficiency of visual strength grading of timber with respect to origin, species, cross section, and grading rules: a critical evaluation of the common standards
  13. Synthesis of alcohol-soluble phenol-formaldehyde resins from pyrolysis oil of Cunninghamia lanceolata wood and properties of molding plates made of resin-impregnated materials
  14. Enzymatic strategies to improve removal of hexenuronic acids and lignin from cellulosic fibers
  15. Phylogenetic analysis of major molds inhabiting woods. Part 4. Genus Alternaria
  16. Short Notes
  17. Comparison of hydrogenolysis with thioacidolysis for lignin structural analysis
  18. Detection of complex vascular system in bamboo node by X-ray μCT imaging technique
  19. Obituary
  20. Professor Gösta Brunow (1936–2013)
  21. Meetings
  22. Meetings
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