| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4410027 | Chemosphere | 2012 | 6 Pages |
This study was performed to investigate the utility of bio-oil, produced via a fast pyrolysis process, as an antifungal agent against wood-rot fungi. Bio-oil solutions (25–100 wt.%) were prepared by diluting the bio-oil with EtOH. Wood block samples (yellow poplar and pitch pine) were treated with diluted bio-oil solutions and then subjected to a leaching process under hot water (70 °C) for 72 h. After the wood block samples were thoroughly dried, they were subjected to a soil block test using Tyromyces palustris and Trametes versicolor. The antifungal effect of the 75% and 100% bio-oil solutions was the highest for both wood blocks. Scanning electron microscopy analysis indicated that some chemical components in the bio-oil solution could agglomerate together to form clusters in the inner part of the wood during the drying process, which could act as a wood preservative against fungal growth. According to GC/MS analysis, the components of the agglomerate were mainly phenolic compounds derived from lignin polymers.
► Biooil was produced by fast pyrolysis technology with lignocellulosic biomass. ► Antifungal effect of biooil was evaluated using T. palustris and T. versicolor. ► Chemical components agglomerated in the inner part of wood and formed clusters. ► The clusters acted as wood preservatives and were identified as phenolic compounds.
