Possibility of using lichen and mistletoe extracts as potential natural wood preservative

• Cafer Yildiz, Ümit ^[1] ; Kiliç, Ceyhun ^[2] ; Gürgen, Ayşenur ^[1] ; Yildiz, Sibel ^[1]
  1. [1] Karadeniz Technical University

     Karadeniz Technical University

     Turquía

     
  2. [2] Department of non-Forest Products. Eastern Karadeniz Forestry Research Institute. Turkey
• Localización: Maderas: Ciencia y tecnología, ISSN 0717-3644, ISSN-e 0718-221X, Vol. 22, Nº. 2, 2020, págs. 179-188
• Idioma: inglés
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• Resumen

  • Increasing environmental pressures on toxic chemical wood preservatives lead to the development of natural and environmentally friendly wood preservatives. In this study, using possibilities of lichen (Usnea filipendula) and leaves of mistletoe (Viscum album) as potential natural wood preservative were researched. Impregnation procedure was applied at four different concentration levels and with two different extraction methods (hot water and methanol). The concentration levels were arranged as 3%, 5%, 10%, 15% for hot water and as 3.75%, 6.25%, 12.5%, 18.75% for methanol. The treatment procedure has been applied according to the ASTM D 1413 (1988) standard test method. The fungal decay test has been done according to the EN 113 (1996) standard test method using a brown rot fungus, Coniophora puteana for both treated test and untreated control samples. The best results were obtained at the highest concentration level of the solutions. However, the weight losses in treated test specimen have not met the standard requirements. Nevertheless, it can be assumed that both natural extracts provide promising protection performance.