Thermogravimetric analysis for wood decay characterisation
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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.
KeywordsLignin Hemicellulose Trametes Versicolor Fungal Decay Gloeophyllum Trabeum
Thermogravimetrische Analyse zur Charakterisierung der Holzfäule
The authors gratefully acknowledge the financial support of WoodWisdom-Net (www.woodwisdom.net), the wood industry partnership Building with Wood, and The Research Council of Norway for funding the research work within project “WoodExter”. This work forms part of that project. Also, thanks to Monica Fongen and Eva Grodås, Norwegian Forest and Landscape Institute, and to Thomas Koch, Vienna University of Technology for their work on the TGA.
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