关键词: 
• essentialoil,β-cyclodextrin,steamdistillationmethod,Citrireticulataepericarpium,Atrac-tylodismacrocephalaeKoidiz

摘要: The paper is related to the investigation of the optimum extraction and inclusion condition of es‐sential oil in A tractylodis macrocephalae Koidiz .and Citri reticulatae pericarpium .The technique of ex‐traction and inclusion are steam distillation method and saturated water solution ,respectively .3 factors and 3 levels orthogonal design have been adopted to explore the optimum conditions .Extreme difference a‐nalysis and variance analysis has been used for data processing .Conditions for the extraction and inclusion of essential oil have been studied .Best extraction process of essential oil in A tractylodis macrocephalae Koidiz .and Citri reticulatae pericarpium is A2 B2 C3 :raw drug materials are boiled 5 hours by addition of 10 times of water to the middle powder (50 mesh screen) of A tractylodis macrocephalae Koidiz .and Citri reticulatae pericarpium .Moreover ,its best inclusion process is A3B2C1 :the proportion of essential oil andβ‐cyclodextrin is 1 :6 ,inclusion time is 1h at the temperature of 50 ℃ ,inclusion rate is 81 .90 % .It is concluded that the extraction and inclusion process of essential oil from A tractylodis macrocephalae Koidiz .and Citri reticulatae pericarpium are simple ,available and economic .