Kiwifruit is a rich source of vitamin C. It also contains minerals such as potassium, phosphorus, magnesium, calcium, selenium, iron, zinc, and copper. Along with minerals it provides vitamins as Vitamin A, Vitamin C, folate, Vitamin B2, niacin, Vitamin B6, and Vitamin E. The skin of kiwi fruit is a good source of flavonoid antioxidants. The kiwifruit seed oil contains on average 62% alpha-linolenic acid, an omega-3 fatty acid. Usually a kiwifruit contains fat, protein, carbohydrates, and dietary fiber found partly in the edible skin (1).
Phytochemical analysis of kiwi peel detects the presence of vitamin E, 2,8-dimethyl-2-(4,8,12-trimethyltridec-11-enyl)chroman-6-ol, as well as α- and δ-tocopherol, 7 sterols, the triterpene ursolic acid, chlorogenic acid, and 11 flavonoids. Chemical fractionation of kiwi fruit pulp showed the presence of two caffeic acid glucosyl derivatives and two coumarin glucosydes, β-sitosterol, stigmasterol, campesterol, chlorogenic acid, and some flavone and flavanol molecules.