title: Qualitative and quantitative changes of beech wood degraded by wood-rotting basidiomycetes monitored by Fourier transform infrared spectroscopic methods and multivariate data analysis.
abstract: Beech wood (Fagus sylvatica L.) veneers were cultivated with white and brown rot fungi for up to 10 weeks. Fungal wood modification was traced with Fourier transform near infrared (FT-NIR) and Fourier transform mid infrared (FT-MIR) methods. Partial least square regression (PLSR) models to predict the total lignin content before and after fungal decay in the range between 17.0% and 26.6% were developed for FT-MIR transmission spectra as well as for FT-NIR reflectance spectra. Weight loss of the decayed samples between 0% and 38.2% could be estimated from the wood surface using individual PLSR models for white rot and brown rot fungi, and from a model including samples subjected to both degradation types.
authors.affiliation: Competence Center for Wood Composites and Wood Chemistry (Wood K plus), Linz, Austria. f.fackler@kplus-wood.at
authors.forename: Karin
authors.initials: K
authors.lastname: Fackler
authors.forename: Manfred
authors.initials: M
authors.lastname: Schwanninger
authors.forename: Cornelia
authors.initials: C
authors.lastname: Gradinger
authors.forename: Barbara
authors.initials: B
authors.lastname: Hinterstoisser
authors.forename: Kurt
authors.initials: K
authors.lastname: Messner
mesh_terms: D001487:Basidiomycota / Q000254:growth & development*; D029964:Fagus / Q000378:metabolism* / Q000382:microbiology; D008031:Lignin / Q000378:metabolism; D015999:Multivariate Analysis; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*; D013997:Time Factors; D014934:Wood / Q000378:metabolism* / Q000382:microbiology
chemical_list: D008031:Lignin