环糊精(cyclodextrin)简称CD或YD,是由淀粉经环糊精糖基转移酶酶解而得,是以α-1,4键联结成的环状低聚糖化合物。环合的葡萄糖分子数主要有6、7、8个三种,分别称为α-、β-和γ-环糊精,亦有少量8个以上葡萄糖环合物。环糊精的衍生物近年来也有较多的报道。 Cyclodextrin (abbreviated as CD or YD) is a cyclic oligosaccharide compound formed by the enzymatic hydrolysis of starch by cyclodextrin glycosyltransferase. There are mainly 6, 7, 8 three kinds of cyclodextrin glucose molecules, which are called α-, β- and γ-cyclodextrin respectively. There are also a few more than 8 glucose congeners. Derivatives of cyclodextrins have also been reported more in recent years.