• CrissanMiranda
• Fleme Rodrigues
• PrabhaShetty

The present study was to evaluate the antioxidant potential and the total phenolic content of P.marsupium bark and V.vinifera seeds extract. Antioxidant potential of selected plants was investigated in aqueous and ethanolic solvent under two conditions 1hr and overnight extraction. The free radical scavenging activity was determined using DPPH (2,2-diphenyl-1-picrylhydrazyl) assay in the concentration range of 0.5mg/mlcm3-30.0mg/mlcm3.The scavenging activity of all the extracts was compared with standards namely Butylated hydroxyl toluene (BHT), Gallic acid and Ascorbic acid. IC50 of aqueous P. marsupium overnight extract was found to be 1.10 ± 0.263mg/cm3andthat of aqueous V.vinifera (1hr) extract was found to be 3.075 ± 0.074 mg/mlcm3for DPPH. Total phenolic content was determined by Folin-Ciocalteau method and expressed in terms of Gallic acid equivalent. The aqueous overnight extractofP. mMarsupiumand ethanolic overnight extract of V.viniferashowed highest phenolic content (30.88 ± 0.090 mg/mlcm3 and 33 ± 0.115mg/mlcm3) respectively.P. marsupium bark and V. vinifera seeds extract showed significant antioxidant activity as compared to standards (p < 0.05). The ferric reducing capacity was measured using ferrozine assay. The reducing power of the extracts increased with increasing concentration.

Antioxidant, DPPH, Total phenolic content, ferrozine

"Antioxidantcapacity and free radical scavenging activity of Pterocarpus marsupiumand Vitis vinifera by using different in vitro model-A comparative study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.578-585, May-2019, Available :http://www.jetir.org/papers/JETIR1905H92.pdf

"Antioxidantcapacity and free radical scavenging activity of Pterocarpus marsupiumand Vitis vinifera by using different in vitro model-A comparative study", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp578-585, May-2019, Available at : http://www.jetir.org/papers/JETIR1905H92.pdf