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Growth of mold and rot fungi on copper-impregnated Scots pine sapwood [Elektronisk resurs] Influence of planing depth and inoculation pattern.
- Myronycheva, Olena, 1975- (författare)
- Sehlstedt-Persson, Margot, 1957- (författare)
- Karlsson, Olov (författare)
- Sandberg, Dick, 1967- (författare)
- Luleå tekniska universitet Institutionen för teknikvetenskap och matematik (utgivare)
- Publicerad: North Carolina State University, 2018
- Engelska.
- Ingår i: BioResources. - 1930-2126. ; 13:4, 8787-8801
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- The biocidal properties of an industrially used copper-based preservative were evaluated at different planing depths on exposure of pine wood to mold fungi in direct and indirect contamination methods, with simultaneous verification of white rot fungi virulence on wood. The preservative was an aqueous solution of copper carbonate, 2-aminoethanol, and quaternary ammonium compounds. Full cell preservative impregnation efficiency against visual mold fungi growth was tested on sapwood surfaces planed to different depths before impregnation. The virulence of two white rot fungal strains of Trametes versicolor (441 and JPEI) against the dried non-impregnated and impregnated wood samples was also tested. The unplaned surface of impregnated timber was occupied by air-borne contaminants, such as Paecilomyces variotti and Aspergillus niger up to 30%, and, even after impregnation it was necessary to process the surface to avoid micro-fungi settlement. The virulence of the tested rot fungi strains was confirmed by the aggressive degradation of non-impregnated wood with a mass loss of over 40%. Both Trametes sp. strains degraded the preservative-impregnated wood with a mass loss of 3.1% to 4.8%, but degradation by the JPEI strain was more intensive and more dependent on planing depth than the other strain (441).
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- Agricultural and Veterinary sciences (hsv)
- Agricultural Science, Forestry and Fisheries (hsv)
- Wood Science (hsv)
- Lantbruksvetenskap och veterinärmedicin (hsv)
- Lantbruksvetenskap, skogsbruk och fiske (hsv)
- Trävetenskap (hsv)
- Engineering and Technology (hsv)
- Mechanical Engineering (hsv)
- Other Mechanical Engineering (hsv)
- Teknik och teknologier (hsv)
- Maskinteknik (hsv)
- Annan maskinteknik (hsv)
- Träteknik (ltu)
- Wood Science and Engineering (ltu)
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