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      Antioxidant activity of plant extracts from Colombian flora Translated title: Atividade antioxidante de extrato de plantas da flora colombiana

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          Abstract

          In this study the antioxidant activity of forty-six methanol plant extracts, from the botanical families Asteraceae, Euphorbiaceae, Melastomataceae, Rubiaceae and Solanaceae, collected at the Regional Natural Park Ucumarí (RNPU, Risaralda, Colombia), were established by using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay. The plant extracts that showed the greatest antioxidant activity were Phyllanthus sp. (54.0%, Euphorbiaceae), followed by the two species belonging to the Melastomataceae family Tibouchina grossa (47.0%) and Miconia lehmannii Cogn. (45.3%) and continuing with Lycianthes radiata (Sendt.) Bitter. (41.5%, Solanaceae). This is the first report on the antioxidant activity of these Colombian species.

          Translated abstract

          Neste estudo a atividade antioxidante de quarenta e seis extratos metanólicos de plantas das famílias botânicas Asteraceae, Euphorbiaceae, Melastomataceae, Rubiaceae e Solanaceae, coletadas no Parque Regional Natural Ucumarí (PRNU, Risaralda, Colômbia), foi determinada usando o ensaio de captação de radical livre de 1,1 difenil-2-picrilhidrazil (DPPH). Os extratos das plantas que mostraram a maior atividade antioxidante foram Phyllanthus sp. (54.0%, Euphorbiaceae), seguido por duas espécies da família de Melastomataceae Tibouchina grossa (47.0%) e Miconia lehmannii Cogn. (45.3%) e Lycianthes radiata (Sendt.) Bitter. (41.5%, Solanaceae). Esta é a primeira informação da atividade antioxidante destas espécies.

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          Most cited references27

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          Antioxidant activities of aqueous extracts of selected plants

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            Phytochemical methods A guide to modern technique of plant analysis

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              Antibacterial, Antifungal, and Cytotoxic Activities of 11 Solanaceae Plants from Colombian Biodiversity

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbfar
                Revista Brasileira de Farmacognosia
                Rev. bras. farmacogn.
                Sociedade Brasileira de Farmacognosia (Curitiba )
                1981-528X
                June 2009
                : 19
                : 2a
                : 382-387
                Affiliations
                [1 ] Universidad Tecnológica de Pereira Colombia
                Article
                S0102-695X2009000300008
                10.1590/S0102-695X2009000300008
                f5e4310c-d09c-4833-8c7d-536d59aa93c6

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0102-695X&lng=en
                Categories
                PHARMACOLOGY & PHARMACY

                Pharmacology & Pharmaceutical medicine
                DPPH,free radical-scavengers,Phyllanthus sp.,Tibouchina grossa,Miconia lehmannii,Lycianthes radiate,captadoras de radical livre,Lycianthes radiata

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