Fig. 1From: Characterization and anti-tumor activity of a polysaccharide isolated from Dendrobium officinale grown in the Huoshan CountyPolysaccharide isolation and purification. a Elution profiles of the crude polysaccharide isolated from D. officinale grown in the Huoshan area using a DEAE-52 column. b Gel filtration chromatography was performed with a Sephadex G-100 columnBack to article page