Fig. 1

Purification of polysaccharides. A DEAE-52 anion-exchange column chromatography elution curve of crude polysaccharide extracted from Dendrobium officinale leaves. B, C Sephadex G-100 column chromatography elution curves of fraction a and b
Purification of polysaccharides. A DEAE-52 anion-exchange column chromatography elution curve of crude polysaccharide extracted from Dendrobium officinale leaves. B, C Sephadex G-100 column chromatography elution curves of fraction a and b