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Isolation of polysaccharide from capsules made by BS mucilage by thin layer chromatography and its visualization under far UV light. (A) TLC image with dichloromethane:methanol:water = 8:1:0.1 as the developing solvent; (B) TLC image with ethyl acetate:methanol:water = 8:1:0.5 as the developing agent. 1–3, 4 and 5 refer to BS mucilage capsule samples, quercetin reference and excipient reference, respectively.
