Study On Optimal Extraction Technology for Volatile Oil in Radix Angelicae Pubescentis / 中药新药与临床药理

Objective To study the optimal extraction process of volatile oil in Radix Angelicae Pubescentis.Methods L9(34) orthogonal design was carried out for the optimization of water extraction of volatile oil in Radix Angelicae Pubescentis,and the content of volatile oil was used as referece index.Results The optimal extraction process was as follows:medicinal materials were crashed to go through mesh 80～100,then were soaked in 12-fold volume of water for 10 hours,and were extracted for 11 hours.Conclusion The optimal extraction techndogy is simple and feasible with the extraction rate of volatile oil being 2.66 %.