Phytochemical study and antioxidant activity of hydroethanolic extracts of desmodium ramosissimum g. don (1832) (fabaceae)

Desmodium ramosissimum is a medicinal plants used in rural areas in Togo. The aim of this study is to contribute to a better knowledge of the biological activities of D. ramosissimum, with a particular focus on the antioxidant activity of its different parts. Different organs such as leaves and roots were collected to extract active compounds by maceration. Antioxidant activity was evaluated using three different methods: DPPH radical scavenging, molybdenum ion reduction and iron reduction (FRAP method). Results recorded with all these methods showed that the leaves had a better antioxidant activity. The phytochemical screening revealed the presence of major chemical groups such as total polyphenols, tannins, alkaloids and saponosides. The leaves having shown the best antioxidant activity, they should be favored in the interest of preserving biodiversity.