PHYTOCHEMICAL AND ANTIOXIDANT INVESTIGATION OF SOME VARIETIES OF GRAPE (VITIS VINIFERA) HARVESTED IN NINH THUAN PROVINCE, VIETNAM
Main Article Content
Abstract
Background: Grapes (Vitis vinifera L.) have been demonstrated to possess antioxidant activity, cardiac effects, antimicrobial effect, and immune system effects. The bioactive investigation of varieties of Grape harvested in Vietnam is limited. Objectives: The aim of this study is to phytochemical screening, total polyphenol determination and antioxidant evaluation of some varieties of Grape harvested in Ninh Thuan province. Materials and Methods: The fruit of two varieties of grape including NH.01.48 (NH) and Red Cardinal (Red) collected in Ninh Thuan province were phytochemical analyzed by Ciuley method with improvement, quantified total polyphenol content by Folin-Ciocalteu method, and determined antioxidant activity by DPPH assay. Results: Two varieties of grape juice including NH and Red contain flavonoids, anthocyanins, tannins, organic acids, and fats. Total polyphenol in grape juice of NH and Red were 0.0069% and 0.0049%. In the antioxidant capacity, IC50 values were 126.3 µg/ml and 71.94 µg/ml for NH and Red fruit juice, respectively. Conclusions: This current study demonstrated that two varieties of Grape collected in Ninh Thuan province could be used to develop antioxidant supplementary as well as therapeutic medicine
Article Details
Keywords
NH.01.48, Red Cardinal, antioxidant, Vitis vinifera, DPPH
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