Antioxidant activity of insect gall extracts of Pistacia integerrima

Eshwarappa, R. S. B. and Lakshmikantha, R. Y. and Sundara Rajan, S. and Sujan Ganapathy, P. S. and Austin Richard, S. and Dhananjaya, B. L. (2015) Antioxidant activity of insect gall extracts of Pistacia integerrima. Acta Scientiarum Polonorum : Technologia Alimentaria , 14 (4). pp. 367-374. ISSN 1889-9594

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Background. Pistacia integerrima (P. integerrina) insect galls are widely used in ayurveda and siddha sys- tem of medicine as karkatasringi. The use of leaf galls as a rejuvenator may be attributed to antioxidant prop- erty, however there is less scientific evidence. Therefore, the aim of this study was to evaluate the chemical composition and the antioxidant potential of leaf gall extracts (aqueous and ethanol) of P. integerrina, which is extensively used in the preparation of traditional medications. Material and methods. The antioxidant activities of aqueous and ethanolic leaf gall extracts were examined using diphenylpicrylhydrazyl (DPPH), hydroxyl scavenging and ferric reducing power (FRAP) methods. Results. The presences of phenolics, tannins, phytosterols, triterpenoids, saponins, flavonoids and reducing sugars were identified in both the extracts. In comparison to the aqueous extract, the ethanolic extract had the highest total phenolic and flavonoid content at 234 ±2.4 mg of GAE/g d.w. and 95.5 ±3.2 mg of QUE/g d.w., respectively. This higher content of total phenolics and flavonoids found in the ethanolic extract was directly associated with higher antioxidant activity. Conclusion. This study demonstrates the poetnet antioxidant activities of P. integerrima leaf gall extracts. Further, there was a strong association between the higher antioxidant activities with that of higher total phe- nolic and flavonoid content in the ethanolic leaf gall extracts of P. integerrima. The results encourage the use of P. integerrima leaf gall extracts for medicinal health, functional food and nutraceuticals applications, due to their antioxidant properties. Future work will be interesting to learn the chemical composition and better understand the mechanism of action of the antioxidants present in the extract for development as a drug for therapeutic application.

Item Type: Article
Subjects: Agriculture Biological Sciences > Biochemistry
University of Mysore > PG Campuses > Manasagangotri, Mysore > Agriculture Biological Sciences > Biochemistry
Divisions: PG Campuses > Manasagangotri, Mysore > Biochemistry
Depositing User: Praveen Kumari B.L
Date Deposited: 18 Apr 2016 07:52
Last Modified: 18 Apr 2016 07:52

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