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http://dx.doi.org/10.5658/WOOD.2010.38.4.341

Antimicrobial Activities of Wood Vinegar and Application as Natural Fungicides and Food Preservatives  

Lee, Sung-Suk (Division of Forest Bioenergy, Department of Forest Resources Utilization, Korea Forest Research Institute)
Ahn, Byoung-Jun (Division of Forest Bioenergy, Department of Forest Resources Utilization, Korea Forest Research Institute)
Cho, Sung-Taig (Division of Forest Bioenergy, Department of Forest Resources Utilization, Korea Forest Research Institute)
Publication Information
Journal of the Korean Wood Science and Technology / v.38, no.4, 2010 , pp. 341-348 More about this Journal
Abstract
Antifungal and antibacterial activities of wood vinegars were investigated in this study in order to apply for the natural fungicides and food preservatives. The antifungal activities of wood vinegars were measured as a hyphal growth inhibition rate using four plant pathogenic, four wood rot and one mushroom pathogenic fungi. Inhibition effect on the fungi growth was explicitly observed at the concentrations higher than 0.5% of unrefined wood vinegar and higher than 1.0% of refined wood vinegar, respectively, suggesting that unrefined wood vinegars showed the higher antifungal activities than that of refined wood vinegars. The highest inhibition effect on the fungi growth was shown in Libertella betulina which is a mushroom pathogenic fungus. In addition, the wood vinegars from Pinus densiflora showed the higher antifungal activities against the plant pathogenic and wood rot fungi than that from Quercus spp.. On the other hand, the antibacterial activities of wood vinegars were determined by a paper disc method using the three gram positive and five gram negative bacteria. The unrefined wood vinegars showed a prominent effect on the suppression of bacteria growth at the concentration of 10%, while the suppression of bacteria growth was not observed in the refined wood vinegars. These results also suggest that the unrefined wood vinegars showed the higher antibacterial activities than the refined wood vinegars. The antibacterial activities of wood vinegars against gram positive bacteria were higher than those of wood vinegars against gram negative bacteria. From these results, it can be inferred that the wood vinegars has the strong antimicrobial activities and can be applied as the natural fungicides and food preservatives.
Keywords
wood vinegar; antifungal activity; antibacterial activity; natural fungicide; food preservative;
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Times Cited By KSCI : 8  (Citation Analysis)
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