Antioxidative Activity and Flavonoid Content of Chrysanthemum zawadskii Flowers

Abstract

To identify and quantify the major antioxidants present in Chrysanthemum zawadskii var. latilobum (C. zawadskii. hereafter). the flowers of C. zalvadskii were cut into pieces, extracted with methanol (MeOII). and fractionated by using n-hexane. chloroform (CHCl3), ethyl acetate (EtOAc), n-butanol (n-BuOII), and water. The highest concentration of polyphenol and flavonoid was observed in the EtOAc fraction. Based on ABTS and DPPH methods. highest antioxidative activities of Cl zawadskii were found in the EtOAc fraction. in their 81.56% and 68.12% levels, respectively. By using IIPLC. we identified two flavonoids: quercetin and luteolin. in the EtOAc fraction, and their contents were 20.02 and 1.65 mg.g(-1). respectively. Our results clearly suggest the presence of these antioxidants in the flower of zawadskii. thus it may be consumed as tea with health beneficial effects.