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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/60929
Title: Origin of the acetylated structures present in white birch (Betula pendula Roth) milled wood lignin
Authors: Rencoret, Jorge ; Río Andrade, José Carlos del ; Gutiérrez Suárez, Ana ; Martínez, Ángel T.; Parkås, Jim; Li, Shiming; Lundquist, Knut
Issue Date: Jan-2012
Publisher: Springer
Citation: Wood Science and Technolog 46(1-3): 459–471 (2012)
Abstract: The occurrence and nature of acetate groups in the milled wood lignin (MWL) isolated from birch (Betula pendula Roth) has been addressed by spectroscopic (2D-NMR) and chemical degradative (derivatization followed by reductive cleavage, DFRC) methods. Considerable amounts of acetate groups were present in the MWL preparation. However, 2D-NMR analysis indicated that the lignin polymer is not extensively acetylated and that the major part of the acetate groups is attached to the xylan moieties present in the MWL preparation. Nevertheless, evidence of the presence of minor acetylation of the γ-carbon of the lignin side chain (<3% of both syringyl and guaiacyl lignin units) was provided by DFRC analysis
Description: 13 páginas, 4 figuras, 2 tablas -- PAGS nros. 459-471
Publisher version (URL): http://dx.doi.org/10.1007/s00226-011-0417-z
URI: http://hdl.handle.net/10261/60929
DOI: 10.1007/s00226-011-0417-z
ISSN: 0043-7719
E-ISSN: 1432-5225
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