title: Solid state NMR and IR characterization of wood polymer structure in relation to tree provenance.
abstract: (13)C nuclear magnetic resonance and mid-infrared spectroscopies were used for characterizing changes in the chemical structure of wood polymers (cellulose, hemicellulose and lignin) in relation to the tree growth location. Samples of three provenances in Europe (Finland, Poland and Italy) were selected for studies. The requirement was to use untreated solid wood samples to minimize any manipulation to the nanostructure of native wood. The results confirm that the chemical and physical properties of samples belonging to the same wood species (Picea abies Karst.) differ due to the origin. Both FT-IR and dynamic NMR spectroscopies were able to correctly discriminate samples originating from three different provenances in Europe. Such methods might be very useful for both, research and understanding of wood microstructure and its variability due to the growth conditions.
authors.affiliation: Trees and Timber Institute IVALSA/CNR, via Biasi 75, 38010 San Michele All'Adige, Italy. Electronic address: santoni@ivalsa.cnr.it.
authors.forename: Ilaria
authors.initials: I
authors.lastname: Santoni
authors.affiliation: Industrial Engineering Department, University of Trento, v. Mesiano 77, 38123 Trento, Italy. Electronic address: callonee@ing.unitn.it.
authors.forename: Emanuela
authors.initials: E
authors.lastname: Callone
authors.affiliation: Trees and Timber Institute IVALSA/CNR, via Biasi 75, 38010 San Michele All'Adige, Italy. Electronic address: anna.sandak@ivalsa.cnr.it.
authors.forename: Anna
authors.initials: A
authors.lastname: Sandak
authors.affiliation: Trees and Timber Institute IVALSA/CNR, via Biasi 75, 38010 San Michele All'Adige, Italy. Electronic address: sandak@ivalsa.cnr.it.
authors.forename: Jakub
authors.initials: J
authors.lastname: Sandak
authors.affiliation: Industrial Engineering Department, University of Trento, v. Mesiano 77, 38123 Trento, Italy. Electronic address: sandra.dire@ing.unitn.it.
authors.forename: Sandra
authors.initials: S
authors.lastname: Dirè
mesh_terms: D001704:Biopolymers / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015999:Multivariate Analysis; D028222:Picea / Q000737:chemistry / Q000254:growth & development; D013045:Species Specificity; D017550:Spectroscopy, Fourier Transform Infrared; D014197:Trees / Q000737:chemistry* / Q000254:growth & development; D014934:Wood / Q000737:chemistry* / Q000254:growth & development
chemical_list: D001704:Biopolymers
keywords: Mid-infrared spectroscopy; PCA; Solid state NMR spectroscopy; Wood provenance