Studies of the distribution of the 4- O-methyl- d-glucuronic acid residues in birch xylan

The distribution of the 4- O-methyl- d-glucuronic acid residues in birch xylan has been studied. Elimination of the 4- O-methyl- d-glucuronic acid residues of methylated birch-xylan was followed by specific cleavage of the xylan backbone at the originally branched d-xylose residues, using a techniqu...

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Bibliographic Details
Published in:Carbohydrate research 1975-01, Vol.42 (2), p.297-304
Main Authors: Rosell, Karl-Gunnar, Svensson, Sigfrid
Format: Article
Language:English
Subjects:
Betula pendula
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Summary:The distribution of the 4- O-methyl- d-glucuronic acid residues in birch xylan has been studied. Elimination of the 4- O-methyl- d-glucuronic acid residues of methylated birch-xylan was followed by specific cleavage of the xylan backbone at the originally branched d-xylose residues, using a technique involving sequential oxidation, β-elimination, and mild hydrolysis with acid. The molecular weight distribution of the resulting methylated oligosaccharides indicates that the 4- O-methyl- d-glucuronic acid residues are irregularly distributed in birch xylan.
ISSN:0008-6215
1873-426X
DOI:10.1016/S0008-6215(00)84271-8