Abstract

REVEALING THE MIRACLE: GRAPE SEED

Seena Thomas*, Anuroopa P. and Gulafsha M.

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Abstract

Grapes have been commonly used in various fields since the ancient Greek and Roman civilizations. Grape seeds are waste products of the winery and grape juice industry. These seeds contain lipid, protein, carbohydrates, and 5–8% polyphenols depending on the variety. Grape seeds contain mainly phenols such as proanthocyanidins (oligomeric proanthocyanidins). Polyphenols in grape seeds are mainly flavonoids, including gallic acid, the monomeric flavan-3-ols catechin, epicatechin, gallocatechin, epigallocatechin, and epicatechin 3-Ogallate, and procyanidin dimers, trimers, and more highly polymerized procyanidins. Grape seed extract is known as a powerful antioxidant that protects the body from premature aging, disease, and decay. Research suggests that grape seed extract is beneficial in many areas of health because of its antioxidant effect to bond with collagen, promoting youthful skin, cell health, elasticity, and flexibility. Other studies have shown that proanthocyanidins help to protect the body from sun damage, to improve vision, to improve flexibility in joints, arteries, and body tissues such as the heart, and to improve blood circulation by strengthening capillaries, arteries, and veins. This review summarizes the phytochemical constituents, pharmacological activities, and various applications of grape seeds.

Keywords: Grape seed extract (GSE), Polyphenols, Proanthocyanidins, Flavanoids.