Antioxidant activity of Syzygium cumini leaf gall extracts

Eshwarappa, R. S. B. and Iyer, R. S. and Subbaramaiah, S. R. and Richard, S. A. and Dhananjaya, B. L. (2014) Antioxidant activity of Syzygium cumini leaf gall extracts. BioImpacts, 4 (2). pp. 101-107. ISSN 2228-5652

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Abstract

Introduction: Free radicals are implicated in several metabolic diseases and the medicinal properties of plants have been explored for their potent antioxidant activities to counteract metabolic disorders. This research highlights the chemical composition and antioxidant potential of leaf gall extracts (aqueous and methanol) of Syzygium cumini (S. cumini), which have been extensively used in traditional medications to treat various metabolic diseases. Methods: The antioxidant activities of leaf gall extracts were examined using diphenylpicrylhydrazyl (DPPH), nitric oxide scavenging, hydroxyl scavenging and ferric reducing power (FRAP) methods. Results: In all the methods, the methanolic extract showed higher antioxidant potential than the standard ascorbic acid. The presence of phenolics, flavonoids, phytosterols, terpenoids, and reducing sugars was identified in both the extracts. When compared, the methanol extract had the highest total phenolic and flavonoid contents at 474±2.2 mg of GAE/g d.w and 668±1.4 mg of QUE/g d.w, respectively. The significant high antioxidant activity can be positively correlated to the high content of total polyphenols/flavonoids of the methanol extract. Conclusion: The present study confirms the folklore use of S. cumini leaves gall extracts as a natural antioxidant and justifies its ethnobotanical use. Further, the result of antioxidant properties encourages the use of S. cumini leaf gall extracts for medicinal health, functional food and nutraceuticals applications.

Item Type: Article
Uncontrolled Keywords: controlled study, drug mechanism, antioxidant activity, 1, nitric oxide, article, carbohydrate, flavonoid, phenol, saponin, terpenoid, tannin derivative, plant leaf, ascorbic acid, 1 diphenyl 2 picrylhydrazyl, sugar, phytochemistry, phytosterol, flavanoid, Syzygium cumini, triterpenoid, Syzygium cumini extract
Subjects: C Chemical Science > Biochemistry
Divisions: Department of > Biochemistry
Depositing User: Arshiya Kousar
Date Deposited: 18 Jun 2019 09:43
Last Modified: 18 Jun 2019 09:43
URI: http://eprints.uni-mysore.ac.in/id/eprint/3350

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