目的分离、纯化具有降血糖作用的仙人掌多糖组分。方法经热水提取、乙醇沉淀、DEAE Sepharose fast flow离子交换色谱和Sephadex G系列凝胶滤过色谱纯化得到5种仙人掌多糖组分。醋酸纤维薄膜电泳检测多糖纯度,凝胶色谱测定相对分子质量...目的分离、纯化具有降血糖作用的仙人掌多糖组分。方法经热水提取、乙醇沉淀、DEAE Sepharose fast flow离子交换色谱和Sephadex G系列凝胶滤过色谱纯化得到5种仙人掌多糖组分。醋酸纤维薄膜电泳检测多糖纯度,凝胶色谱测定相对分子质量,高效液相色谱测定糖的组成。结果5种多糖都已达到电泳纯。它们的相对分子质量依次为2.0×103、1.0×106、4.0×103、9.2×105、5.0×103。ODP1由鼠李糖组成,ODP2可能由鼠李糖和葡萄糖组成,ODP4可能由鼠李糖和D-半乳糖组成。ODP3和ODP5分别由鼠李糖和一未知糖组分组成。结论仙人掌多糖的提取没有必要采用脱蛋白、脱色素步骤,本实验所提取的仙人掌多糖是均一的。展开更多
文摘目的分离、纯化具有降血糖作用的仙人掌多糖组分。方法经热水提取、乙醇沉淀、DEAE Sepharose fast flow离子交换色谱和Sephadex G系列凝胶滤过色谱纯化得到5种仙人掌多糖组分。醋酸纤维薄膜电泳检测多糖纯度,凝胶色谱测定相对分子质量,高效液相色谱测定糖的组成。结果5种多糖都已达到电泳纯。它们的相对分子质量依次为2.0×103、1.0×106、4.0×103、9.2×105、5.0×103。ODP1由鼠李糖组成,ODP2可能由鼠李糖和葡萄糖组成,ODP4可能由鼠李糖和D-半乳糖组成。ODP3和ODP5分别由鼠李糖和一未知糖组分组成。结论仙人掌多糖的提取没有必要采用脱蛋白、脱色素步骤,本实验所提取的仙人掌多糖是均一的。
基金Project(2018YFC1801804)supported by the National Key R&D Program of ChinaProjects(2016JJ3146,2017JJ3160)supported by the Natural Science Foundation of Hunan Province,China。
基金Project(51504298)supported by the National Natural Science Foundation of ChinaProject(2016JJ3146)supported by the Natural Science Foundation of Hunan Province,China+1 种基金Project(1053320171098)supported by the Fundamental Research Funds for the Central Universities of ChinaProject supported by the Postdoctoral Research Funding Plan in Central South University,China
基金Project(31570113)supported by the National Natural Science Foundation of ChinaProject(2016YFB0101310)supported by the National Key Research and Development Program of China
基金financial supports from the National Key R&D Program of China(No.2018YFC1801804)the Shandong Provincial Natural Science Foundation,China(Nos.ZR2020QD120 and ZR2018LD001)Project of Introducing and Cultivating Young Talent in the Universities of Shandong Province,China(No.QC2019YY144)。
基金Project(SKL-SPM-202003) supported by the State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,ChinaProject(1920001004360) supported by the Foshan Science and Technology Innovation Program,China。