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Effect of alkali treatment and fungal degradation on the nanostructure and cellulose arrangement in Scots pine cell walls – A neutron and X-ray scattering study

cris.virtual.author-orcid0000-0002-6947-9019
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cris.virtualsource.author-orcid7b4d6fa7-016d-4f87-a041-42ee4800e1ca
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dc.abstract.enResearch on new conservation treatments for historical wood requires considerable amounts of appropriate wood material, which is hard to acquire. Thus, we produced biologically and chemically degraded model wood that could be used as a representative material in future research on consolidating agents. Using chemical composition determinations, we found that fungal decay targeted mainly polysaccharides, while alkaline treatment mostly reduced hemicelluloses and lignin content. X-ray and neutron scattering showed that all decayed samples had increased disorder in microfibril alignment and larger elementary fibril cross-sections, and alkaline-treated samples had much larger elementary fibril spacing compared to those decayed by fungi. These nanoscale and chemical differences correlate with physical property changes. For example, decreased cellulose crystallinity and increased disorder of the microfibrils in degraded cell walls likely contribute to the lower elastic moduli measured for these cell walls. The obtained data improves understanding of how degradation alters wood structures and properties across length scales and will be valuable for future studies focusing on archeological wood. Moreover, it leads to the conclusion that it is more appropriate to develop treatments that consider not only spatial variability and degree of wood degradation but also the corresponding molecular and nanoscale changes in the cell walls.
dc.affiliationWydział Leśny i Technologii Drewna
dc.affiliation.instituteKatedra Nauki o Drewnie i Techniki Cieplnej
dc.contributor.authorBroda, Magdalena
dc.contributor.authorPlaza, Nayomi Z.
dc.contributor.authorJakes, Joseph E.
dc.contributor.authorBaez, Carlos
dc.contributor.authorPingali, Sai Venkatesh
dc.contributor.authorBras, Wim
dc.contributor.institutionUniwersytet Przyrodniczy w Poznaniu
dc.date.access2024-09-26
dc.date.accessioned2024-09-26T11:54:26Z
dc.date.available2024-09-26T11:54:26Z
dc.date.copyright2024-09-12
dc.date.issued2025
dc.description.accesstimeat_publication
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if10,7
dc.description.points140
dc.description.reviewreview
dc.description.versionfinal_published
dc.description.volume347
dc.identifier.doi10.1016/j.carbpol.2024.122733
dc.identifier.issn0144-8617
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/1756
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S0144861724009597
dc.languageen
dc.pbn.affiliationforestry
dc.relation.ispartofCarbohydrate Polymers
dc.relation.pagesart. 122733
dc.rightsCC-BY-NC
dc.sciencecloudsend
dc.share.typeOTHER
dc.subject.enCellulose crystallinity
dc.subject.enWood degradation
dc.subject.enCellulose arrangement
dc.subject.enCell wall nanostructure
dc.subject.enNeutron scattering
dc.subject.enCellulose microfibrils
dc.subject.plkrystaliczność celulozy
dc.subject.pldegradacja drewna
dc.subject.plstruktura ściany komórkowej
dc.subject.plmikrofibryle celulozowe
dc.titleEffect of alkali treatment and fungal degradation on the nanostructure and cellulose arrangement in Scots pine cell walls – A neutron and X-ray scattering study
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume347