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BIBTEX RIS

Fenóis totais e atividade antioxidante de cinco plantas medicinais

2007; Brazilian Chemical Society; Volume: 30; Issue: 2 Linguagem: Inglês

10.1590/s0100-40422007000200021

ISSN

1678-7064

Autores

Cleyton Marcos de M. Sousa, Hilris Rocha e Silva, Gerardo Magela Vieira Júnior, Mariane Cruz Costa Ayres, Charllyton Luís Sena da Costa, Delton Sérvulo Araújo, Luís Carlos Duarte Cavalcante, Elcio Daniel Sousa Barros, Paulo Breitner de M. Araújo, Marcela S. Brandão, Mariana Helena Chaves,

Tópico(s)

Phytochemicals and Medicinal Plants

Resumo

Teles Freire and Qualea grandiflora Mart.The total phenolics content of the plant extracts, determined by the Folin-Ciocalteu method, varied from 250.0 ±8,2 to 763,63 ± 13.03 mg of gallic acid equivalent/g dry EtOH extract.The antioxidant activity of extracts was evaluated using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay system.Extract of bark from T. brasiliensis, the most active, with an EC 50 value of 27.59 ± 0.82 μg/mL, was comparable to rutin (EC 50 = 27.80 ± 1.38) and gallic acid (EC 50 = 24.27± 0.31), used as positive controls.The relationship between total phenolic content and antioxidant activity was positive and significant for T. brasiliensis, C. macrophyllum and C. cerifera.

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