Now showing 1 - 3 of 3
  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","527"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","530"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","Bader, Thomas Karl"],["dc.contributor.author","Dibdiakova, Janka"],["dc.contributor.author","Filbakk, Tore"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Hofstetter, Karin"],["dc.date.accessioned","2018-11-07T09:08:59Z"],["dc.date.available","2018-11-07T09:08:59Z"],["dc.date.issued","2012"],["dc.description.abstract","The paper focuses on the use of thermogravimetric analysis (TGA) as a fast method for estimating the change of lignocellulosic materials during fungal degradation in laboratory trials. Traditionally, evaluations of durability tests are based on mass loss. However, to gain more knowledge of the reasons for differences in durability and strength between wooden materials, information on the chemical changes is needed. Pinus sylvestris sapwood was incubated with the brown rot fungus Gloeophyllum trabeum and the white rot fungus Trametes versicolor. The TGA approach used was found to be reproducible between laboratories. The TGA method did not prove useful for wood deteriorated by white rot, but the TGA showed to be a convenient tool for fast estimation of lignocellulosic components both in sound wood and wood decayed by brown rot."],["dc.identifier.doi","10.1007/s00107-011-0566-7"],["dc.identifier.isi","000304653300017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/26159"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","0018-3768"],["dc.title","Thermogravimetric analysis for wood decay characterisation"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS
  • 2014Journal Article
    [["dc.bibliographiccitation.firstpage","129"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","European Journal of Wood and Wood Products"],["dc.bibliographiccitation.lastpage","133"],["dc.bibliographiccitation.volume","72"],["dc.contributor.author","Brischke, Christian"],["dc.contributor.author","Welzbacher, Christian R."],["dc.contributor.author","Gellerich, Antje"],["dc.contributor.author","Bollmus, Susanne"],["dc.contributor.author","Humar, Miha"],["dc.contributor.author","Plaschkies, Katharina"],["dc.contributor.author","Scheiding, Wolfram"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","van Acker, Joris"],["dc.contributor.author","De Windt, Imke"],["dc.date.accessioned","2018-11-07T09:46:52Z"],["dc.date.available","2018-11-07T09:46:52Z"],["dc.date.issued","2014"],["dc.description.abstract","In Europe, the durability of wood against wood-destroying basidiomycetes is tested according to CEN/TS 15083-1 (Durability of wood and wood-based products-determination of the natural durability of solid wood against wood-destroying fungi, test methods-part 1: basidiomycetes, 2005). Existing experience with this standard is quite heterogeneous wherefore six research institutions teamed up and established a new round-robin trial. Fagus sylvatica, Quercus robur, Robinia pseudoacacia as well as sap- and heartwood of Pinus sylvestris, were tested against Coniophora puteana and Trametes versicolor without any pre-treatment, with pre-leaching (EN 84) and with 6 months natural weathering of the specimens. Durability classification revealed differences between test laboratories and depended on pre-treatment and respective statistical measures applied."],["dc.identifier.doi","10.1007/s00107-013-0764-6"],["dc.identifier.isi","329640000017"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/34984"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1436-736X"],["dc.relation.issn","0018-3768"],["dc.title","Wood natural durability testing under laboratory conditions: results from a round-robin test"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
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  • 2012Journal Article
    [["dc.bibliographiccitation.firstpage","191"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Holzforschung"],["dc.bibliographiccitation.lastpage","198"],["dc.bibliographiccitation.volume","66"],["dc.contributor.author","Bader, Thomas Karl"],["dc.contributor.author","Hofstetter, Karin"],["dc.contributor.author","Alfredsen, Gry"],["dc.contributor.author","Bollmus, Susanne"],["dc.date.accessioned","2018-11-07T09:15:40Z"],["dc.date.available","2018-11-07T09:15:40Z"],["dc.date.issued","2012"],["dc.description.abstract","Fungal degradation alters the microstructure of wood and its physical and chemical properties are also changed. While these changes are well investigated as a function of mass loss, mass density loss and changes in equilibrium moisture content are not well elucidated. The physical and chemical alterations are crucial when linking microstructural characteristics with macroscopic mechanical properties. In the present article, a consistent set of physical, chemical and mechanical characteristics is presented, which were measured on the same sample before and after fungal degradation. In the first part of this two-part contribution, elucidating microstructure/stiffness-relationships of degraded wood, changes in physical and chemical data are presented, which were collected from specimens of Scots pine (Pinus syluestris) sapwood degraded by Gloeophyllum trabeum (brown rot) and Trametes versicolor (white rot) for up to 28 weeks degradation time. A comparison of mass loss with corresponding mass density loss demonstrated that mass loss entails two effects: firstly, a decrease in sample size (more pronounced for G. trabeum), and secondly, a decrease of mass density within the sample (more pronounced for T. versicolor). These two concurrent effects are interrelated with sample size and shape. Hemicelluloses and cellulose are degraded by G. trabeum, while T. versicolor was additionally able to degrade lignin. In particular because of the breakdown of hemicelluloses and paracrystalline parts of cellulose, the equilibrium moisture content of degraded samples is lower than that in the initial state."],["dc.identifier.doi","10.1515/HF.2011.149"],["dc.identifier.isi","000300740500007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/27751"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Walter De Gruyter Gmbh"],["dc.relation.issn","0018-3830"],["dc.title","Microstructure and stiffness of Scots pine (Pinus sylvestris L) sapwood degraded by Gloeophyllum trabeum and Trametes versicolor - Part I: Changes in chemical composition, density and equilibrium moisture content"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]
    Details DOI WOS