Study on the Inclusion Compound of Baicalin with Hydroxypropyl-?-Cyclodextrin / 中成药

Objective: To prepare the inclusion compund of baicalin-hydroxypropyl-?-cyclodextrin (HP-?-CD) and identify it. Methods: The inclusion compound of baicalin-HP-?-CD was confirmed by freeze-drying method. Results: The inclusion compound of baicalin-HP-?-CD was confirmed by IR absorption spectroscopy and differential scanning calorimetry (DSC). The results indicated that the inclusion compound of baicalin-HP-?-CD was formed. The content analysis of the inclusion compound showed that the molecular ratio of baicalin to HP-?-CD was 1∶1. Conclusion: The solubility of baicalin is increased from 0.112mg/ml to 2.743mg/ml. when the drug is included by HP-?-CD.