Abstract
The polysaccharide fraction from Ceratozamia spinosa appears to be made up mainly by a chemically homogeneous polysaccharide but with a wide range of molecular weight. By NMR and chemical degradative methods, it is shown to consist essentially of a backbone of alternate-->4)-beta-D-GlcpA-(1-->and-->2)-alpha-D-Manp-(1--> units. On the 4 position of the latter, beta-D-GlcpA residues are linked. End units of alpha-L-Araf, beta-D-Xylp, alpha-L-Rhap, and alpha-L-3-OMe-Rhap are linked to C-3 and/or C-4 positions of beta-D-GlcpA residues.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adhesives / chemistry*
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Adhesives / isolation & purification
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Arabinose / analysis
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Carbohydrate Conformation
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Carbohydrate Sequence
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Glucose / analysis
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Magnetic Resonance Spectroscopy
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Mannose / analysis
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Molecular Sequence Data
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Oligosaccharides / chemistry*
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Oligosaccharides / isolation & purification
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Plants / chemistry*
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Polysaccharides / chemistry*
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Polysaccharides / isolation & purification
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Rhamnose / analysis
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Xylose / analysis
Substances
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Adhesives
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Oligosaccharides
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Polysaccharides
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Xylose
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Arabinose
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Glucose
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Mannose
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Rhamnose