摘要
以水为溶剂，乙醇为沉淀剂，提取分离了均一性的黄芪多糖。采用凝胶层析法测得各级分多糖的分子量，Ｓｃｈｕｌｚ－Ｄｉｎｌｉｎｇｅｒ习惯法求得其分子量分布曲线。使用分光光度计，以浊度滴定法及修正的Ｅｌｉａｓ公式，研究了多糖溶液的Ｈ条件，Ｈ温度为２０±０．０２℃，Ｈ溶剂为Ｖ水：Ｖ丙酮＝６９．９３：３０．０７。利用乌氏粘度计，依次稀释法测得各级分的特性粘度，建立Ｍａｒｋ－Ｈｏｕｗｉｎｋ方程［η］＝５．７５×１０－３Ｍ０．４５。
he homo-geneity astragalus membranceus polysaccharide was extracted and separeted by using the water as solvent, ethanol as precipitant. The molecular weight of polysaccharide was achieved by using sephadex G-75 gel analysis, and the distriluted diagram curve of the molecular lveight was got by the schulz-Dinlinger. The condition: centigrade was 20±0.02℃ dolvent was VH2O:Vactoen=69.93:30.07. was base on using spectropolarimetre. heterometric titration and the revised elias fomular with U-viscusimetre the classified nature of its viscosity was got by cliute analysis in praper order and Mark-Houwink formular =5.75×10-3M0.42 was that chielved.
出处
《莱阳农学院学报》
1997年第4期273-276,共4页
Journal of Laiyang Agricultural College
基金
山东省自然基金
关键词
黄芪多糖
高分子性能
astragelus membranceus polysacharide
high molecular chemical characters
