Drvna industrija, Vol. 58 No. 1, 2007.
Izvorni znanstveni članak
Selected properties of beech wood degraded by brown-rot fungus Coniophora puteana
Rastislav Solár
Stanislav Kurjatko
Miroslav Mamon
Božena Košíková
Eva Neuschlová
Eva Výbohová
Sažetak
This paper reveals the alteration of selected physical and chemical properties of non-tension beech wood exposed to short- and medium-term degradation by the brown-rot fungus Coniophora puteana. The fungus caused a gradual mass loss and a significant decrease in wood density by the decay progression. Biodegradation increased the contents of polar extractives in wood markedly, it caused a substantial removal of cellulose and it relatively increased the contents of lignin in wood. The above mentioned alterations of beech wood were reflected in an expressively increased rate of wood/water interactions, influenced its permeability and the rate of surface swelling. Wood colour turned to brown, and its lightness was reduced after 60-day degradation. The chemical analyses, VIS and FTIR spectra confirmed significant chemical changes of beech wood.
Ključne riječi
beech wood; Coniophora puteana; physical properties; VIS and FTIR spectra
Hrčak ID:
12806
URI
Datum izdavanja:
11.6.2007.
Posjeta: 2.135 *