Determination of Antioxidant Activity of Phenolic Extract of Grapes

Abstract

The grapes were extracted under various conditions using different solvents. The antioxidant activity of solvent extracts was investigated by DPPH radical scavenging method. Ethanol extract exhibited the highest antioxidant activity compared to the other solvents (BuOH, EtOAc, Me2 Cl2 and pet.ether). There was a correlation between antioxidant activity and total phenol content. HPLC analysis of the extracts showed that gallic and cinnamic acid was the major phenolic compounds in grapes. Various phenolic compounds such as catechin and coumaric acids were also identified.

Keywords: Grapes, antioxidants

Cite this Article

Laddha Chetna S, Rahate Karuna P. Determination of Antioxidant Activity of Phenolic Extract of Grapes. Research & Reviews: Journal of Botany. 2018; 7(2): 17–21p