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Growth of mold and rot fungi on copper-impregnated Scots pine sapwood: Influence of planing depth and inoculation pattern.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0001-7864-8091
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0002-3544-8716
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0002-7711-9267
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0002-4526-9391
2018 (engelsk)Inngår i: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 13, nr 4, s. 8787-8801Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

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 variottiand 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).

sted, utgiver, år, opplag, sider
North Carolina State University , 2018. Vol. 13, nr 4, s. 8787-8801
HSV kategori
Forskningsprogram
Träteknik
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URN: urn:nbn:se:ltu:diva-71285DOI: 10.15376/biores.13.4.8787-8801ISI: 000454215100118Scopus ID: 2-s2.0-85056570471OAI: oai:DiVA.org:ltu-71285DiVA, id: diva2:1257396
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Validerad;2018;Nivå 2;2018-10-30 (svasva)

Tilgjengelig fra: 2018-10-19 Laget: 2018-10-19 Sist oppdatert: 2020-01-28bibliografisk kontrollert

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Myronycheva, OlenaSehlstedt-Persson, MargotKarlsson, OlovSandberg, Dick

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