H3, An Acidic Polysaccharide from Cuscuta chinensis

Abstract

Abstract: H3, a homogeneous acidic polysaccharide was obtained from the seeds of Cuscuta chinensis Lam. Its structure was characterized for the first time by chemical and spectroscopic methods to be a highly branched heteropolysaccharide with mean molecular weight of more than 1×10⁶. It was composed of 1,6-linked-β-D Galp, 1,4-linked-β-D Galp, 1,4-linked-β-D GalA, 1,3,6-linked-β-D Galp and 1,2,4-linked Rhap, with branching points at O-2 or O-4 of 1,2,4-linked Rhap and O-3 of 1,3,6-linked-β-D Galp. Its side chains included 1-linked Araf, 1,5-linked Araf and 1,3,5-linked Araf at O-3 of 1,6-linked Galp in the main chain.

Key words: Cuscuta chinensis, Convolvulaceae, Polysaccharides, NMR, Methylation analysis, Partial acid hydrolysis

Supporting:

Wang Zhan, Liu Cuiping, Fang Jinian^*. H3, An Acidic Polysaccharide from Cuscuta chinensis[J]. .

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H3, An Acidic Polysaccharide from Cuscuta chinensis

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