Preparation and identification of inclusion complexes of resveratrol with hydroxypropyl-β-cyclodextrin

The inclusion complexes were prepared by freeze-drying method.The optimum preparation condition was studied by orthogonal test with encapsulation rate as the index of evaluation: the ratio of Resveratrol to HP-β-CD 1∶2,inclusion temperature 20℃,inclusion time 60 minutes.Its structure was identified by IR,UV absorption spectrum,hence preliminarily proving that the inclusion complexes of Resveratrol-hydroxypropyl-β-cyclodextrin were satisfactorily formed.