The effect of extraction solvent on antioxidant activity, total phenol content and total flavonoid content of Postia puberula

The propose of this study is evaluation effects of different solvents on antioxidant activity and phenol and flavonoid content of Postia puberula (Asteracea). The obtained ethanol, methanol, water and hydroalchol extract were investigated for antioxidant activity and phenol and flavonoid content. The antioxidant activity were measured by 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and β-carotene/linoleic acid assay, also phenol and flavonoid content were measured by gallic acid and quercetin as standard compound. The result of this study showed that the the different solvents can effective on antioxidant activity, phenol and flavonoid content so that, in both method hydroalchol extract has more antioxidant activity, also hydroalchol extract has more phenol, but more flavonoid  observed in ethanolic extract