Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2018
Forfattere
Ingunn M. VågenSammendrag
Det er ikke registrert sammendrag
Sammendrag
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Forfattere
Trond Løvdal Ingunn M. Vågen Giovanni Agati Lorenza Tuccio Stanislaw Kaniszewski Maria Gregorowska Ryszard Kosson Agnieszka Bartoszek Ferruh Erdogdu Mustafa Tutar Bart van Droogenbroeck Christine Vos Inge Hanssen Romain Larbat Christophe Robin Michel Verheul Randi Seljåsen Dagbjørn SkipnesSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Eva Narten HøbergSammendrag
Det er ikke registrert sammendrag
Forfattere
Greeley Beck Emil Engelund Thybring Lisbeth Garbrecht ThygesenSammendrag
Earlywood samples of unmodified and acetylated radiata pine were exposed to the brown-rot fungus Rhodonia placenta for 1, 2, 3 and 4 weeks for unmodified samples and 10, 16, 24 and 28 weeks for acetylated samples. Longer incubation periods were used for acetylated samples based on the hypothesis that given enough time under favourable conditions the fungus would eventually degrade the wood. After exposure, samples were weighed and chemically characterized by ATR-FTIR analysis, acetyl content by saponification, and hydroxyl (OH) accessibility by deuterium exchange. Longer incubation times for acetylated samples led to comparable levels of mass loss between unmodified and acetylated wood. Initial brown-rot decay in acetylated wood exhibited a different trend compared to unmodified wood, with an increased OH accessibility and a significant reduction in acetyl content. This was followed by a stable, low OH accessibility and plateau in acetyl content above 10% mass loss in acetylated wood. In unmodified wood, the OH accessibility was nearly constant throughout decay, while the initially low acetyl content decreased linearly with mass loss. ATR-FTIR analysis confirmed the differences in acetyl removal between unmodified and acetylated wood. Wood-water relations before and after brown-rot decay were determined with low-field nuclear magnetic resonance (LFNMR) relaxometry on water saturated samples. For the decayed acetylated wood, the behaviour of the water corresponded well with de-acetylation observed by chemical characterization. The results show that after removal of acetyl groups, degradation of acetylated wood by R. placenta occurred at a similar rate to that of unmodified wood.