Correlation between scavenging property and antioxidant activity in the extracts of Emblica officinalis Gaertn., syn. Phyllanthus emblica L. Fruit

The present study investigates a concentration-dependent assessment of scavenging property and antioxidant activity in the extracts of Emblica officinalis Gaertn. syn. Phyllanthus emblica L. fruit using various in vitro assays. A correlation of aqueous and ethanolic extract of Emblica fruit along with different known standards for its antioxidative properties was made by performing assays like TPC, RP, TAC, DPPH FRAP and HRSA. Both the aqueous and ethanolic extract of fruit showed high phenolic content beside strong reducing power and free radical scavenging capacity. The hydroxyl radical scavenging potential of aqueous extract was higher compared to ethanolic extract. A high positive correlation was observed among the in vitro assays for the antioxidative properties except for HRS assay which showed negative corelation. Our finding not only tots up the results related to antioxidant asset of amla fruit but also emphasizes the fact of its usefulness as chemopreventive and/or chemotherapeutic importance. Further studies are warranted to explore the constituents responsible for the antioxidant property and other pharmacological activities.