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蒲黄经热水提取,脱除蛋白质、乙醇沉淀,Sephadex G50柱层析分离,DEAE-Sephadex A25和DEAE-Cellulose离子交换柱层析分离得3种白色粉末状多糖TAA、TAB、TAC。经凝胶柱层析、醋酸纤维素薄膜电泳证明,三者为均一体。3种多糖经酸全水解、纸层析和气相色谱分析,确定了糖基的组成及摩尔组成比。用核磁共振、甲基化分析、NaIO_4氧化等方法对多糖结构进行了初步探讨。
Puhuang was extracted by hot water, the protein was removed, ethanol precipitation, Sephadex G50 column chromatography, DEAE-Sephadex A25 and DEAE-Cellulose ion exchange column chromatography isolated three kinds of white powder polysaccharides TAA, TAB, TAC. Gel column chromatography, cellulose acetate electrophoresis showed that the three were uniform. Three kinds of polysaccharides by acid hydrolysis, paper chromatography and gas chromatography analysis to determine the composition of sugar and molar ratio of sugar. The structures of polysaccharides were preliminarily studied by means of nuclear magnetic resonance, methylation analysis and NaIO 4 oxidation.