壳聚糖/β-环糊精交联聚合物的制备及其对葛根素的吸附性能  

Preparation of Chitosan-β-Cyclodextrin Cross-linked Copolymer and Its Adsorption to Puerarin

作　　者：苏苗[1] 王丽丽[1] 林强[1] 

机构地区：[1]北京联合大学生物化学工程学院,北京100023

出　　处：《过程工程学报》2011年第6期978-983,共6页The Chinese Journal of Process Engineering

摘　　要：以壳聚糖与β-环糊精为原料、高碘酸钠为氧化剂、环氧氯丙烷为交联剂,用反相悬浮法制备新型壳聚糖/β-环糊精,用红外光谱和电镜扫描对其进行结构表征,研究其对葛根素的吸附性、洗脱性及重复使用性.结果表明,最佳吸附条件为:吸附时间4h,温度35℃,pH=7,葛根素初始浓度0.5mg/mL,壳聚糖/环糊精对葛根素的吸附量达52.43mg/g,洗脱率达89.69%,且表现出较好的重复使用性.A new type chitosan-β-cyclodextrin copolymer was prepared with the chitosan and β-cyclodextrin as materials,sodium periodate as oxidant,epichlorohydrin as cross-linker using inverse suspension method. Its structure was characterized by FT-IR and SEM. Its adsorption and desorption performance to puerarin,and reusability were investigated. The results showed that the optimal conditions were： adsorption time 4 h,temperature 35℃,pH？7 and initial concentration of puerarin 0.5 mg/mL,the maximum adsorption of puerarin on chitosan-β-cyclodextrin was 52.43 mg/g,its elution rate of puerarin 89.69%,and it showed good reusability.

关 键 词：壳聚糖/环糊精交联聚合物 葛根素 吸附 环氧氯丙烷 

分 类 号：O647.3[理学—物理化学]