Naslov
Contribution to Understanding the Biodegradation Mechanism of Wood Sterilised by Gamma Radiation

Autori
Hasan, Marin ; Despot, Radovan ; Humar, Miha ; Pohleven, Franc ; Rep, Gregor

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
International Journal of Medicinal Mushrooms / Wasser, Solomon P. - New York (NY) : Wallingford : Begell house, inc., 2007, 308-309

Skup
The Fourth International Medicinal Mushrooms Conference

Mjesto i datum
Ljubljana, Slovenija, 23.09.2007. - 27.09.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
natural durability; Gloeophyllum trabeum; Trametes versicolor; wood sterilisation

Sažetak
An easy, fast and effective sterilisation method – gamma radiation changes molecular structure not only in pest’ s living cells, but also in wooden cell walls. Radiation-induced depolymerisation causes significant changes in wood properties crucial for laboratory testing of wood-preservative effectiveness. Natural durability of wood against rot fungi in lab conditions dependency on different sterilisation method was researched and the data presented. In the research, white rot fungus Trametes versicolor (L.: Fr.) Pilat. and brown rot fungus Gloeophyllum trabeum (Pers.: Fr.) were tested on the Scots pine. Cobalt 60Co was used as a gamma radiation source at the dosage of 30 and 150 kGy. Control non-irradiated specimens were sterilised by autoclaving. Statistically significant differences in mass loss between gamma irradiated and autoclaved specimens have been established only after 4 and 8 weeks of exposure to fungus G. trabeum. Irradiated specimens had greater mass loss. During further exposure, the differences decreased and became insignificant. On the other hand, during first 12 weeks of exposure to fungus T. versicolor, no significant differences in mass losses between irradiated and autoclaved specimens were determined. After 16 weeks of exposure, with 30 kGy irradiated specimens lost significantly more mass while the specimens irradiated with 150 kGy lost significantly less mass than the control ones.

Izvorni jezik
Engleski

Znanstvena područja
Temeljne medicinske znanosti, Šumarstvo, Biotehnologija

Napomena
International Journal of Medicinal Mushrooms, 9(3&4):308-309

POVEZANOST RADA