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An Update on Xylan Synthesis [PDF]
Plant cell walls are complex structural frameworks that affect cell shape and differentiation, and that protect the plant cell against environmental conditions (Scheller and Ulvskov, 2010). One of the major components of the wall is the hemicellulosic polysaccharide xylan, which is composed of a linear β-(1,4)-linked D-xylosyl (Xyl) backbone with ...
Doering, Anett +2 more
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The Xylan of Rhodymenia palmata [PDF]
Barry and Dillon1 reported the isolation from the red seaweed Rhodymenia palmata of a polysaccharide which gave D-xylose on hydrolysis. Our special interest in xylans2 has led us to investigate this substance more fully as part of the research programme of the Scottish Seaweed Research Association.
E G V, PERCIVAL +5 more
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Alterations of the degree of xylan acetylation inArabidopsisxylan mutants [PDF]
Xylan is the second most abundant polysaccharide in secondary walls of dicot plants and one of its structural features is the high degree of acetylation of xylosyl residues. In Arabidopsis, about 60% of xylosyl residues in xylan are acetylated and the biochemical mechanisms controlling xylan acetylation are largely unknown.
Chanhui, Lee +3 more
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Xylan is known as a strength-enhancing agent for paper. However, it is difficult to adsorb xylan onto cellulose fibers because it carries the same negative charge as fibers. Therefore, either cationization of xylan or addition of cationic polyelectrolyte
Sang Hoon Lee +2 more
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A novel acetyl xylan esterase enabling complete deacetylation of substituted xylans [PDF]
Acetylated 4-O-(methyl)glucuronoxylan (GX) is the main hemicellulose in deciduous hardwood, and comprises a β-(1→4)-linked xylopyranosyl (Xylp) backbone substituted by both acetyl groups and α-(1→2)-linked 4-O-methylglucopyranosyluronic acid (MeGlcpA).
Razeq, Fakhria M. +7 more
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Synergistic mechanism of GH11 xylanases with different action modes from Aspergillus niger An76
Background Xylan is the most abundant hemicellulose polysaccharide in nature, which can be converted into high value-added products. However, its recalcitrance to breakdown requires the synergistic action of multiple enzymes.
Shu Zhang +8 more
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Optimizing yield and chemical compositions of dimethylsulfoxide-extracted birchwood xylan
Dimethylsulfoxide (DMSO) extraction is commonly used to study the chemical structures of original xylan in the plant cell wall, since the DMSO can preserve the original structure of the xylan as much as possible during the extracting process. In addition,
Mingquan Zhang +3 more
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Sugarcane processing roughly generates 54 million tonnes sugarcane bagasse (SCB)/year, making SCB an important material for upgrading to value-added molecules.
Leila Khaleghipour +7 more
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Xylan-degrading enzymes from Aspergillus niger and Hypocrea orientalis were characterized by enzyme activity assays and protein profiling with SDS-PAGE and LC-MS/MS. The hydrolysis of Miscanthus xylan by xylan-degrading enzymes from A.
Hailong Li +5 more
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Structure of Hardwood Xylan and Specificity ofStreptomyces β-Xylanase toward the Xylan [PDF]
Three kinds of xylo-oligosaccharides having structures of 3(2)-beta-xylosylxylobiose, 3(2)-beta-xylobiosylxylobiose, and 2(2)-beta-xylobiosyl-xylobiose were isolated from an enzymatic hydrolysate of hardwood xylan with Streptomyces beta-xylanase. The structures suggest that the hardwood xylan has both (1-->2)- and (1-->3)-beta-D-xylopyranosyl linkages ...
Yoshida, Shigeki +3 more
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