Antioxidant activity, extraction and determining of chemical structure of flavonoids and chalcone in flowers of Tanacetum parthenium L

One of the most important secondary metabolism products found in plants are flavonoids. They have medicinal and biological effects such as: purify blood, strengthen immune system, monitoring cholesterol level, regulate blood pressure, suppress acid secretion, prevent thrombus, suppress cytophy, antibacterial, prevent cancer, promote metabolism. In this study, the flavonoids and one chalcone from methanolic extract of flowers of Chrysanthemum parthenium (L.) Bernh. (syn. Tanacetum parthenium L.) (Compositae Family) were separated and purified by column chromatography and TLC methods. Kaempferol and naringenin are two flavonoids and trans- 4- ethoxy- 4'- methoxy chalcone as a chalcone compound were extracted, separated and detected by spectroscopy methods (1H-NMR, 13C-NMR, Mass and IR). Investigation of antioxidant activity included free radical scavenging activity towards 2, 2-diphenyl-1-pycrylhydrazile (DPPH) radicals. Methanolic extract of flowers of Tanacetum parthenium showed free radical scavenging activity.