Phytochemicals and antioxidant activity in seed and pulp of wild grape (Ampelocissus martinii Planch.) extracts

Abstract

In this work, the phytochemical content and antioxidant activity of methanolic extract of the wild grape seed and pulp were examined at three different stages, namely, immature, mature and ripe. The results showed that the seed extracts produce higher phytochemical content and antioxidant activity than the pulp extracts. For both seed and pulp extracts, polyphenols decrease at the ripening period. The immature wild grape seed extract (GWGS) showed the highest amount of phytochemicals and potent antioxidant activity. The content of phytochemical results are found to have a significant correlation with the antioxidant activities (p < 0.01). In conclusion, GWGS from the extract of wild grape seed is a source of phenolic compounds that might be potentially used as good supplement for health benefits.