The Vitis genus is member of the grape family, Vitaceae, and is a rich source of resveratrol and resveratrol oligomers. These natural products exhibit a wide of biological activities including anti-inflammatory, antimicrobial, antioxidant and cytotoxic activities. While these compounds have traditionally been isolated from different parts of the grape plants, including the leaves, reports of their presence in grape leaves collected during the fall season are lacking. Phytochemical study of an acetone extract of cabernet franc (Vitis vinifera) fall leaves, has afforded several polyphenolic compounds, including flavonoid and flavonoid glycosides. However, resveratrol oligomers appear to be absent or present in only small quantities. The structures of isolated polyphenolic compounds were characterized by 1D and 2D-NMR spectroscopic data.

Polyphenolic compounds from cabernet franc (Vitis vinifera) fall leaves

251st National Meeting (2016)

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