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Mode of action of brown rot decay resistance of thermally modified wood: resistance to Fenton’s reagent
Georg-August-University Göttingen, Germany.ORCID iD: 0000-0003-0883-2306
Georg-August-University Göttingen, Germany.
2016 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 70, no 7, p. 691-697Article in journal (Refereed) Published
Abstract [en]

The resistance of heat treated (HT) wood to brown rot fungi has been investigated, while the role of the Fenton reaction (FR) in the initial phase of degradation was in focus. Micro-veneers made of Scots pine, were HT with various intensities and their mass losses (MLHT) were determined before soaking with a solution of Fenton’s reagent containing Fe ions and hydrogen peroxide. The mass loss of the veneers treated that way (MLFT), their tensile strength loss (TSLFT) and the H2O2 decomposition were observed. The MLFT, TSLFT, and H2O2 loss decreased with increasing MLHT of the veneers. Soaking of the veneers in acetate buffer containing only Fe without H2O2 revealed that the heat treatment (HT) strongly reduces the Fe uptake by the cell walls. FTIR spectroscopy indicated oxidation of the unmodified control veneers but did not reveal predominant decay of cell wall components; the HT veneers were not changed at all due to FR. It was concluded that the reason for the enhanced resistance of HT wood to FR is attributable to hindered diffusion of Fe ions into the wood cell wall.

Place, publisher, year, edition, pages
2016. Vol. 70, no 7, p. 691-697
National Category
Wood Science
Identifiers
URN: urn:nbn:se:lnu:diva-56895DOI: 10.1515/hf-2015-0141OAI: oai:DiVA.org:lnu-56895DiVA, id: diva2:975098
Available from: 2016-09-28 Created: 2016-09-28 Last updated: 2017-11-21Bibliographically approved

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Hosseinpourpia, Reza

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CiteExportLink to record
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  • nn-NO
  • nn-NB
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  • Other locale
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  • html
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  • asciidoc
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