Structural features of a neutral heteropolysaccharide CPB-4 from Cynanchum paniculatum / 中国中药杂志
China Journal of Chinese Materia Medica
;
(24): 128-130, 2002.
Article
Dans Chinois
| WPRIM
| ID: wpr-274997
ABSTRACT
<p><b>OBJECTIVE</b>To study the chemical features of CPB-4, a heteropolysaccharide obtained from Cynanchum paniculatum.</p><p><b>METHOD</b>Sugar composition analysis, methylation analysis, partial hydrolysis and carbon-13 nuclear magnetic resonance were used to determine the sugar composition, linkages, main chain, branch chains and branching points.</p><p><b>RESULT</b>CPB-4 is composed of L-arabinose, L-xylose, L-rhamnose and D-galactose in closely molar ratios of 0.80.20.21.0. Its main chain is comprised of 1, 5 linked galactose and side chains are comprised of terminal xylose, terminal arabinose, oligosaccharide of arabinose and oligosaccharide of arabinose, rhamnose and galactose. The branching points are located at C-6 and C-2 of galactose.</p><p><b>CONCLUSION</b>CPB-4 is a new heteropolysaccharide from C. paniculatum.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Arabinose
/
Plantes médicinales
/
Polyosides
/
Rhamnose
/
Xylose
/
Chimie
/
Racines de plante
/
Cynanchum
/
Méthylation
langue:
Chinois
Texte intégral:
China Journal of Chinese Materia Medica
Année:
2002
Type:
Article
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