Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood

We analyzed the effects of heat treatment on the chemical structure of wood from narrow-leafed Ash (Fraxinus angustifolia), a fast-growing and economically valuable species. We also analyzed the effects of heat treatment on the wood’s resistance to four decay fungi. Narrow-leafed Ash wood...

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Autores principales:	Yalcin,Mesut, Ibrahim,Halil
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2015
Materias:	Chemical structure decay resistance Fraxinus angustifolia thermal modification
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200020
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spelling	oai:scielo:S0718-221X20150002000202015-06-17Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash woodYalcin,MesutIbrahim,Halil Chemical structure decay resistance Fraxinus angustifolia thermal modification We analyzed the effects of heat treatment on the chemical structure of wood from narrow-leafed Ash (Fraxinus angustifolia), a fast-growing and economically valuable species. We also analyzed the effects of heat treatment on the wood’s resistance to four decay fungi. Narrow-leafed Ash wood samples were heated with saturated steam to 140, 180, 200, and 220°C for 2, 4, and 6 h. The relative contents of extractable components were analyzed, as well as the levels of holocellulose, cellulose, and lignin. In addition, the density, equilibrium moisture content, and pH of the samples were measured. To determine the effects of heat treatment on resistance to decay fungi, the samples were exposed to the white rot fungus Trametes versicolor, dry rot fungus Serpula lacrymans, and the brown rot fungi Coniophora puteana and Gloeophyllum trabeum. Changes in the chemical composition of the wood due to heat treatment were correlated with increased resistance to fungal decay. While the hemicellulose content was dramatically reduced with increasing temperature and treatment duration, the lignin content increased proportionately. Thus, heat treatment is an environmentally friendly method of preserving narrow-leafed Ash wood against various decay fungi.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.17 n.2 20152015-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200020en10.4067/S0718-221X2015005000040
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Chemical structure decay resistance Fraxinus angustifolia thermal modification
spellingShingle	Chemical structure decay resistance Fraxinus angustifolia thermal modification Yalcin,Mesut Ibrahim,Halil Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
description	We analyzed the effects of heat treatment on the chemical structure of wood from narrow-leafed Ash (Fraxinus angustifolia), a fast-growing and economically valuable species. We also analyzed the effects of heat treatment on the wood’s resistance to four decay fungi. Narrow-leafed Ash wood samples were heated with saturated steam to 140, 180, 200, and 220°C for 2, 4, and 6 h. The relative contents of extractable components were analyzed, as well as the levels of holocellulose, cellulose, and lignin. In addition, the density, equilibrium moisture content, and pH of the samples were measured. To determine the effects of heat treatment on resistance to decay fungi, the samples were exposed to the white rot fungus Trametes versicolor, dry rot fungus Serpula lacrymans, and the brown rot fungi Coniophora puteana and Gloeophyllum trabeum. Changes in the chemical composition of the wood due to heat treatment were correlated with increased resistance to fungal decay. While the hemicellulose content was dramatically reduced with increasing temperature and treatment duration, the lignin content increased proportionately. Thus, heat treatment is an environmentally friendly method of preserving narrow-leafed Ash wood against various decay fungi.
author	Yalcin,Mesut Ibrahim,Halil
author_facet	Yalcin,Mesut Ibrahim,Halil
author_sort	Yalcin,Mesut
title	Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
title_short	Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
title_full	Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
title_fullStr	Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
title_full_unstemmed	Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
title_sort	changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood
publisher	Universidad del Bío-Bío
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2015000200020
work_keys_str_mv	AT yalcinmesut changesinthechemicalstructureanddecayresistanceofheattreatednarrowleavedashwood AT ibrahimhalil changesinthechemicalstructureanddecayresistanceofheattreatednarrowleavedashwood
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Changes in the chemical structure and decay resistance of heat-treated narrow-leaved ash wood

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