Study on the Relationship of the Phenolic, Flavonoid and Tannin Content to the Antioxidant Activity of Garcinia Atroviridis

Abstract

The presence of phenolic, flavanoid and tannin compound content in the methanolic extract of Garcinia atroviridis were investigated in this study using UV-Vis Spectrometry and consequently find the relationship between the chemical contents with the antioxidant activity. Garcinia atroviridis has phenolic content the highest followed by flavonoid and tannin content. The antioxidant activities of dried sample of Garcinia atroviridis was carried out by using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. The plant shows low antioxidant activity. Garcinia leaves from ethyl acetate extract showed the highest antioxidant activity (59.18%) followed by Garcinia leaves from methanol extract (57.97%), and then Garcinia leaves from hexane extract (55.67%). The total phenolic content showed a good correlation with the antioxidant activity but not with the total flavonoid and tannin content.