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Year : 2010  |  Volume : 6  |  Issue : 24  |  Page : 335-338

Antioxidant activity of five Brazilian plants used as traditional medicines and food in Brazil

1 Laboratory of Research on Natural Products, University of Region of Cariri, Crato (CE), Brazil
2 Laboratory of Pharmacology and Medicinal Chemistry, University of Region of Cariri, Crato (CE), Brazil
3 College of Medicine, Federal University of Ceará, Barbalha (CE), Brazil
4 Laboratory of Microbiology and Molecular Biology, University of Region of Cariri, Crato (CE), Brazil

Correspondence Address:
Henrique D. M. Coutinho
University of the Region of Cariri, Center of Biological Sciences and Health, Department of Biological Sciences, Laboratory of Microbiology and Molecular Biology, Crato (CE), CEP 63105-000
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Source of Support: Brazilian agencies FUNCAP, CNPq and CAPES, Conflict of Interest: None

DOI: 10.4103/0973-1296.71789

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Background: This study evaluates the radical-scavenging activity of five plants used as food and medicines in the northeastern region of Brazil. Materials and Methods: Spectrophotometric analysis of the plants' ethanol extracts was carried out. The antioxidant activity was determined by the DPPH (2,2-diphenyl-1 picrylhydrazyl) test. The antioxidant capacity was measured using ascorbic acid as a positive control. Results: All tested plant extracts showed an antioxidant activity, but the highest activity was observed with the extracts of Momordica charantia and Eugenia jambolana. Conclusions: Therefore, these species must be studied as a putative source of products for use in the prevention and treatment of diseases in which oxidants or free radicals are implicated.

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