Antioxidant potential and determination of total phenolic and flavonoid content of Bugis ginseng (Talinum paniculatum Gaertn) leaf water extract

Abstract

Bugis ginseng (Talinum paniculatum Gaertn.) leaves function as a traditional medicine to increase breast milk production, to increase appetite, to improve the immune system and as an antibacterial as we as medicine for ulcers. Flavonoids are phenolic compounds, one of the secondary metabolites in plants that function as antioxidants. This study aims to determine the total phenol content, total flavonoids and antioxidant activity of water extract of Bugis ginseng leaves. Quantitative determination of total phenols using the Folin-Ciocalteu method was expressed as gallic acid equivalent (GAE) per gram of extract. Total flavonoid content using the AlCl3 method was expressed as Quercetin equivalent (QE) and in vitro antioxidant activity with DPPH (2, 2-diphenyl-1-picrylhydrazyl) expressed in terms of IC50 (inhibition concentration). The results showed that water extraction of ginseng leaves showed a total phenol content of 8.37 mg GAE/g extract, a total flavonoid content of 2.12 mg QE/g extract and an IC50 value of 60.27 ug/ml.