The mixed volatile oil of qingpi and muxiang was included with β-cyclodextrin. The factors affecting inclusion complex formation were researched by L9(34) orthogonal test. The utilization ratio of the oil, the ratio of the oil in inclusion complex and recovery of inclusion complex were used as criteria in the test. The best conditions for inclusion were A2B2C3, that is,the complex should be formed in the aqueous solution containing β-cyclodextrin and oil with a ratio of 6:1 for three hours at 55℃.The comple...