Objective: In order to apply the guiding basis for harvest

management

storage and process of Paris polyphylla var. yunnanensis rhizome

chemical composition changes of P. polyphylla var. yunnanensis rhizome during the storage period was studied. Method: Nine P. polyphylla var. yunnanensis rhizome samples were sealed up and stored at room temperature for one year. The chemical compositions of P. polyphylla var. yunnanensis rhizome samples were analyzed with HPLC method before and after storage. Result: The chemical compositions of P. polyphylla var. yunnanensis rhizome were changed significantly after stored for one year

which could cause the changes of the medicinal quality and efficacy. Among them

the content of saponin Ⅵ in P. polyphylla var. yunnanensis rhizome increased;the content of saponinⅡ decreased;and no regularity was observed for the contents changes of saponinⅠ and saponin Ⅶ. Conclusion: According to the chemical composition changes of P. polyphylla var. yunnanensis rhizome

long storage period should be avoided to keep its medicinal quality and efficacy.