Abstract

• In the present research, the flower of Clitoria ternatea L. (Aung-me-nyo) that is one of the most popular Myanmar medicinal plants was selected to study total phenolic content, total flavonoid content and antioxidant activity. Preliminary phytochemical analyses indicated the presence of alkaloids, glycosides, carbohydrates, phenolic compounds, saponins, tannins, α-amino acids, reducing sugars, steroids, flavonoids, anthocyanins, starch and organic acids. Total phenolic contents of various extracts were investigated by Folin-Ciocalteu reagent and total flavonoid contents were determined by aluminium chloride colourimetric method. According to the results, total phenolic contents of petroleum ether, ethyl acetate, methanol and aqueous extracts were 16.36, 33.16, 25.12 and 11.22 µg GAE/mg of extract, respectively. Total flavonoid contents of petroleum ether, ethyl acetate, methanol and aqueous extracts are 132.17, 86.52, 73.48 and 23.48 µg QE/mg of extract, respectively. Antioxidant activity of the extracts of Clitoria ternatea flowers was screened by DPPH assay method and powerful antioxidant activity of the flower extracts was observed.