2006
DOI: 10.1002/bip.20533
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Covalent linkages between cellulose and lignin in cell walls of coniferous and nonconiferous woods

Abstract: Covalent linkages between wall polysaccharides and lignin, especially linkage between cellulose and lignin were discussed by carboxymethylation technique of whole cell walls of coniferous and nonconiferous woods. Hydroxyl groups of plant cell walls polysaccharides were highly substituted, but not those of lignin by carboxymethyl groups under the used conditions, and separated into water-soluble and insoluble fractions by water extraction. Carboxymethylated wall polysaccharides linked covalently with lignin wer… Show more

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Cited by 82 publications
(59 citation statements)
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“…Based on the nature of the small products, Zhang et al (2015) hypothesized that the cellulose-lignin interaction occupies the C6 position, disfavoring glycosidic bond cleavage that is required for the formation of levoglucosan and favoring light compound and furan formation through ring scission, rearrangement, and dehydration reactions. The strength of this effect on pyrolysis products is most pronounced in grasses, followed by softwood and then hardwood, possibly due to the increased prevalence of covalent bonds between cellulose and lignin in grass cell walls (Jin et al, 2006;Zhou et al, 2010). Hemicellulose-lignin interactions, especially the xylan-lignin interaction revealed in NMR experiments (Yuan et al, 2011), may also affect pyrolysis.…”
Section: Model 3: Interactions and Linkages Between Primary Componentsmentioning
confidence: 99%
“…Based on the nature of the small products, Zhang et al (2015) hypothesized that the cellulose-lignin interaction occupies the C6 position, disfavoring glycosidic bond cleavage that is required for the formation of levoglucosan and favoring light compound and furan formation through ring scission, rearrangement, and dehydration reactions. The strength of this effect on pyrolysis products is most pronounced in grasses, followed by softwood and then hardwood, possibly due to the increased prevalence of covalent bonds between cellulose and lignin in grass cell walls (Jin et al, 2006;Zhou et al, 2010). Hemicellulose-lignin interactions, especially the xylan-lignin interaction revealed in NMR experiments (Yuan et al, 2011), may also affect pyrolysis.…”
Section: Model 3: Interactions and Linkages Between Primary Componentsmentioning
confidence: 99%
“…In addition, wall composition and the fine structures of component polysaccharides vary depending upon the growth phase, cell type, cell position, and local region within the wall (4,5). In some cell types, lignin is deposited throughout the wall during secondary thickening (6,7), and in response to pathogen attack, the rapid formation of a cross-linked protein network, together with the deposition of lignin and callose, can strengthen walls and create new physical barriers to invading microorganisms (8).…”
mentioning
confidence: 99%
“…Iiyama and co-workers 21 reported that total yield of neutral monosaccharide of buried hardwoods for 6,000-10,000 years was 15-20% of those from sound wood, probably due to anaerobic atmosphere immediate after buried. Cell wall polysaccharides of plants litter are quickly decomposed, while lignin and polysaccharides covalently associated with lignin resist significantly to biological degradation 21,23,26 . The neutral monosaccharide detected from AL insol fraction would be released from the cell wall polysaccharides associated chemically with lignin.…”
Section: Neutral Sugar Compositionmentioning
confidence: 99%