Study on preparation of ?-cyclodextrin inclusion compound of volatile oil from Curcuma wenyujin / 中成药

Objective:To study optimum inclusion process conditions for volatile oil from Curcuma wenyujin. Methods: The study was carried out with orthogonal design. The process conditions were studied by determining the ultizision ratio of volatile oil from Curcuma wenyujin , the oil bearing rate and extract ratio of inclusion compound. Results: The optimum preparation conditions for inclusion were established as∶oil∶? CD was 1∶9, The inclusion temperature and time were at 40 ?C and for 1.5h , The ultizision ratio of oil was 86.5% . Conclusions: The rate is high and the method is applicable.