Huynh, T.D., Nguyen, V.T., Le, N.T., Nguyen, T.N.U. and Nguyen, D.D. 2020. Determination of total polyphenol, saponin contents, antioxidant and antibacterial activities of Melastoma malabathricum leaves by liquid-liquid extraction. CTU Journal of Innovation and Sustainable Development . 12, 1 (Mar. 2020), 8-15. DOI:https://doi.org/10.22144/ctu.jen.2020.002.