栓钱菌质多糖的制备、纯化及性质研究

Preparation, Purification and Property of Polysaccharides in Shuanqian Fungal Substance

目的制备、纯化栓钱菌质中的多糖成分,研究其单糖组成及性质。方法通过红栓菌固体发酵马钱子药材,培养30 d后,将发酵产物栓钱菌质烘干,粉碎,经水煮、浓缩、脱色、脱蛋白、醇沉处理后得到粗多糖,苯酚-硫酸法测定其多糖含量。采用透析、Sephadex G-150凝胶柱色谱法进一步纯化,酸水解后薄层色谱分析其单糖组成。结果栓钱菌质粗多糖含量为47.68%,得率为10.52%,经纯化后的多糖不含核酸和蛋白质,由葡萄糖和半乳糖2种单糖组成。结论栓钱菌质多糖是由葡萄糖和半乳糖组成的灰白色粉末状杂多糖。

Objective To prepare and purify the polysaccharides in Shuanqian fungal substance （FS）;To study its monosaccharide composition and property. Methods Strychnos nux-vomica was under a thirty-day solid fermentation through Trametes cinnabarina. Then crude polysaccharide was got after the process of drying, smashing, water boiling, condensing, decoloring, removing protein and ethanol precipitation. The content of polysaccharides in Shuanqian FS was determined by phenol-sulfuric acid method. Dialysis and gel chromatography method was used to purify the crude polysaccharide. The purified composition was analyzed by acid hydrolysis and thin layer chromatography. Results The content of crude polysaccharide was 47.68%and yield was 10.52%. It showed that polysaccharide in Shuanqian FS contained glucose and galactose, but no nucleic acid and protein. Conclusion Polysaccharide in Shuanqian FS was an offwhite powdery heteropolysaccharide, which contained glucose and galactose.