Abstract

ANTIOXIDANT ACTIVITY OF EXTRACTS OF PELARGONIUM GRAVEOLENS

Ripu Daman*, Anurag and Anju Pal

Abstract

Antioxidant activity was carried out for ethanolic and aqueous extracts with DPPH-scavenging and Hydrogen peroxide-scavenging model. In DPPH-scavenging model, Plant extracts and standard (ascorbic acid) solution were prepared in different concentrations. and absorbance was recorded at 517 nm. The ethanolic extract of Pelargonium graveolens showed the high %inhibition (61%) of DPPH followed by aqueous extract of Pelargonium graveolens In hydrogen peroxide scavenging model. The standard, ascorbic acid and the extracts were prepared in phosphate buffer The absorbance was measured at 230 nm against the blank solution containing phosphate buffer without hydrogen peroxide. In Hydrogen peroxide-scavenging model, ethanolic extract showed high % inhibition (87.1%) and least inhibition was done by aqueous extract of Pelargonium graveolens. In DPPHscavenging model, the ethanolic extract of Pelargonium graveolens showed the highest 61% (100μg/ml) scavenging of DPPH followed by 55.3% (80μg/ml) and aqueous extract of Pelargonium graveolens and least scavenging was done by ethanolic extract of 19.2% (100μg/ml). In Hydrogen peroxide-scavenging model, ethanolic extract showed high scavenging (87.1%) of hydrogen peroxide which further followed by (72%) and least scavenging was done by aqueous extract of Pelargonium graveolens.

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