Antioxidant and Antimicrobial Activity of Grape Skin

Ms. Sneha V & Dr. V. Judia Harriet Sumathy
Postgraduate & Research Department of Biotechnology, Women’s Christian College, Chennai – 600 006.

A B S T R A C T
Grape (Vitis vinifera) skins and seeds are considered to be rich sources of poly-phenolic compounds.Using the sap of grapevines, European folk healers sought to cure skin and eye diseases. Other historical uses include the leaves being used to stop bleeding, pain and inflammation of hemorrhoids. Resveratrol is found in widely varying amounts among grape varieties, primarily in their skins and seeds, which, in muscadine grapes, have about one hundred times higher concentration than pulp. Fresh grape skin contains about 50 to 100 micrograms of resveratrol per gram. These grape skin extract compounds are believed to act as anti-mutagenic and antiviral agents. The present study is aimed at extracting skin of red grapes with methanol and perform the phytochemical tests using qualitative analysis. Furthermore Total Phenolic content by Quantitative analysis, Column Chromatography by GC-MS to confirm the secondary metabolites for skin, Antioxidant activity by DPPH, Hydrogen Peroxide and Total antioxidant capacity and Antibacterial activity for grape skin would be assessed.
Keywords: Grape skin, Resveratrol, Phytochemical Analysis, Antioxidant and Antimicrobial Property.