ABSTRACT
OBJECTIVE:To study the decoction rate changes of 4 active ingredients in the volatile oil of Curcuma phaeocaulis before and after combined with Sparganium stoloniferum,and provide reference for showing the compatibility mechanism of C. pha-eocaulis and S. stoloniferum. METHODS:HPLC was used to simultaneously determine the contents of 4 active ingredients(curdi-one,curcumol,germacrone and β-elemene) in the volatile oil of C. phaeocaulis after C. phaeocaulis single decoction and com-bined decoction with S. stoloniferum. And the fried rates of each ingredient were compared. RESULTS:Compared with C. phaeo-caulis single decoction,there was significant difference in the fried amounts of curdione,curcumol,germacrone in the volatile oil after combined decoction(P0.05). CONCLUSIONS:The com-bined decoction of C. phaeocaulis and S. stoloniferum can effectively improve the dissolution of curdione,curcumol,germacrone in the volatile oil. It may be the reason for the enhancement of efficacy after compatibility.