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Polysaccharide degradation in waterlogged oak wood from the ancient warship Vasa
2008 (English)In: Holzforschung, ISSN 0018-3830, E-ISSN 1437-434X, Vol. 62, no 1, 57-63 p.Article in journal (Refereed) Published
Abstract [en]

A rather extensive degradation of cellulose and hemicelluloses was found in waterlogged oak wood samples from the ancient warship Vasa by size exclusion chromatography with the solvent system lithium chloride/ N,N-dimethylacetamide (LiCl/DMAc). The degradation has mainly occurred after salvage of the wreck, probably as a consequence of keeping iron contaminated wood in contact with air. The most likely explanation is Fenton type of reactions degrading the wood polymers and oxidising reduced sulphur forms to sulphuric acid. An increased degradation rate of the Vasa wood can be anticipated in the future if the sulphuric acid cannot be neutralised and the oxidative reactions cannot be quenched.

Place, publisher, year, edition, pages
2008. Vol. 62, no 1, 57-63 p.
Keyword [en]
degradation, iron, oak wood, size exclusion chromatography (SEC), sulphur, waterlogged wood, kraft pulps, iron, hydrolysis, suberin
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-17262DOI: 10.1515/hf.2008.008ISI: 000252041400008OAI: oai:DiVA.org:kth-17262DiVA: diva2:335305
Note

QC 20100525

Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2017-12-12Bibliographically approved

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