TITLE

PROPERTIES OF BLUE-STAINED WOOD

AUTHOR(S)
Humar, Miha; Vek, Viljem; Bučar, Bojan
PUB. DATE
June 2008
SOURCE
Wood Industry / Drvna Industrija;2008, Vol. 59 Issue 2, p75
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Discoloration of wood is frequently caused by blue-stain fungi. Among them Aureobasidium pullulans and Sclerophoma pithyophila are reported as the most important staining organism. In previous researches, it was generally considered that blue-stain fungi do not influence mechanical properties. However, there were some opposite results published as well. In order to elucidate this issue, specimens made of Scots pine (Pinus sylvestris) sapwood were exposed to two blue stain fungi A. pullulans and S. pithyophila for periods between two and eight weeks. FTIR, weight, colour and non-destructive modulus of elasticity measurements were performed before and after exposure. The results showed that blue stain fungi, besides considerable discoloration, do not cause any significant damage to wood. Surprisingly the non-destructive MoE analysis showed that modulus of elasticity even slightly increase after fungal exposure.
ACCESSION #
33060420

 

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