[The potential antineoplastic acting constituents of Physalis alkekengi L. var franchetii Mast].

In a continuing search for potent antineoplastic compounds in indigenous plants, a water extract of Physalis alkekengi L. var. franchetii Mast. fruits was shown to have reproducible antineoplastic activity against Ehrlich ascites carcinoma in mice. Systematic fractionation of the extract led to the isolation of citric acid as the major active principle.