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In vitro oxidative and enzymatic degradation of modified wood
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Material och produkter (TRm).ORCID iD: 0000-0002-6208-8314
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Trä.ORCID iD: 0000-0003-2902-2257
Technische Universität München, Germany.
2014 (English)In: The seventh European Conference on Wood Modification : Book of Abstracts, 2014, Vol. 6, p. 36-39, article id 1Conference paper, Published paper (Refereed)
Abstract [en]

Fungal cellulases have been shown to be less efficient in modified wood than in untreated wood (Lekounogou et al. 2008; Vena°s 2008). However, Verma and Mai (2010) showed that cellulase efficacy is partly restored in 1,3-dimethylol-4,5-dihydroxyethyleneurea (DMDHEU) treated wood by pre-treatment with Fenton's reagent, simulating the oxidative degradation phase in initial brown rot decay. In this study, we examined whether Fenton derived hydroxyl radicals (OH) and cellulases are able to cleave polysaccharides in furfurylated and acetylated wood and to what extent enzyme efficacy is increased by oxidative pre-treatment of these materials. The results show that fungal cellulases were able to degrade acetylated wood and that the cellulase efficacy was increased by oxidative pre-treatment by 20%, which is half of the increase in untreated wood. Furthermore, the results indicate that poly(furfuryl alcohol) is degraded by Fenton derived OH. This indicates a possible route for the eventual degradation of modified wood.

Place, publisher, year, edition, pages
2014. Vol. 6, p. 36-39, article id 1
Series
The International Wood Products Journal, ISSN 2042-6445
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-12431DOI: 10.1179/2042645314Y.0000000080Scopus ID: 2-s2.0-84923009248Local ID: 19309OAI: oai:DiVA.org:ri-12431DiVA, id: diva2:970255
Conference
The seventh European Conference on Wood Modification. Lisboa, Portugal. March 10-12, 2014
Available from: 2016-09-13 Created: 2016-09-13 Last updated: 2019-08-13Bibliographically approved

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