分子印迹纤维膜富集分离白藜芦醇的研究

Study on the Separation and Purification of Resveratrol by Molecularly Imprinted Hollow Fiber Membrane

以白藜芦醇为模板分子,聚偏氟乙烯中空纤维膜为支撑体,采用自由基热聚合法制备白藜芦醇分子印迹复合膜,对膜分离性能进行了测试。结果表明,当萃取剂为纯甲醇时,物质透过膜的量很少,印迹膜体现出对模板分子的吸附选择性;当萃取剂为0.3%冰醋酸-甲醇时,印迹膜呈现对模板分子的透过选择性。

Resveratrol molecularly composite fiber membrane （MIM） was prepared by thermal initiated free radical polymerization on the surface of PVDF hollow fiber membrane with resveratrol as template. The separation performance of the prepared membrane for resveratrol was studied. The results showed that with methanol as extract, imprinted membrane showed absorption selectivity, while the permission amounts were low. While with 0.5 % acetic acid-methanol as extract, the imprinted membrane showed permission selectivity for template.