| Journal: | Maderas : ciencia y tecnología |
| Database: | |
| System number: | 000534575 |
| ISSN: | 0718-221X |
| Authors: | Bari, Ehsan1 Mohebby, Behbood2 Naji, Hamid Reza3 Oladi, Reza4 Yilgor, Nural5 Nazarnezhad, Nouredin6 Ohno, Katie M.7 Nicholas, Darrel D.8 |
| Institutions: | 1Technical and Vocational University Technical Faculty of No. 2 Department of Wood Science and Engineering, Sari. Iran 2Tarbiat Modares University Faculty of Natural Resources Department of Wood and Paper Sciences, Noor. Iran 3University of Ilam Department of Forest Science, Ilam. Iran 4University of Tehran Karaj Faculty of Natural Resources Department of Wood Science and Technology, Iran 5Istanbul University Forestry Faculty Department of Forest Products Chemistry and Technology, Istanbul. Turkey 6Sari Agriculture and Natural Resources University Department of Wood and Paper Science, Sari. Iran 7USDA Forest Service Forest Products Laboratory, Madison Wisconsin. Estados Unidos 8Mississippi State University Department of Sustainable Bioproducts, Mississippi. Estados Unidos |
| Year: | 2018 |
| Volumen: | 20 |
| Number: | 1 |
| Pages: | 35-56 |
| Country: | Chile |
| Language: | Inglés |
| English abstract | Meticulous chemical analysis of decaying xylem and linking it to corresponding anatomical modification at the cellular level can improve our understanding of the decay process. The aim of this study was to monitor the histological, chemical, photochemical, and progression of wood degradation by two white-rot fungi at different intervals. Oriental beech wood (Fagus orientalis) blocks were exposed to Pleurotus ostreatus and Trametes versicolor to investigate the degradation capabilities of these two fungi. Light microscopy was used to study the decay patterns in wood. Decayed wood samples were also analyzed to determine lignin, cellulose and sugar contents and also evaluated at two week intervals by FT-IR spectroscopy to study chemical alterations. According to chemical analyses lignin is the most degraded polymer followed by cellulose and hemicelluloses for both white rot fungi. However, both test fungi tended to consume lignin more than cellulose. FT-IR spectra changes for lignin and carbohydrates in beech wood supported chemical alteration and indicated that both fungi decay wood in a simultaneous pattern. |
| Keyword: | Carbohydrate degradation, Cell wall decomposition, FT-IR, Oriental beech wood, Simultaneous white-rot, Wood chemistry, Wood decay. |
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