Preliminary analysis of Brazilian Amazonian plant extracts using bench-top assays in a through-put basis aiming the identification of potential antioxidant natural product
Rev. ciênc. farm. básica apl
;
3801/01/2017. tab, ilus, Graf
Artículo
en Inglés
| LILACS
| ID: biblio-1100220
ABSTRACT
Plants are a source of compounds that are used for the treatment of human and veterinary diseases. Brazil is one of the richest countries in the world in terms of biodiversity. The present study evaluated extracts using thin-layer chromatography to identify antioxidant activity and determine the presence of groups of compounds, in a large-scale basis. A total of 1,260 aqueous and organic extracts were obtained from plants that were collected in the Amazon and Atlantic rain forests. Thin-layer chromatography was performed to evaluate the presence of alkaloids, anthraquinones, cardioactive glicosides, terpenes, and phenolics and determine antioxidant and radical scavenging activity using the following reagents Dragendorff's reagent, KOH, Kedde's reagent, sulphuric acid, NP reagent, ß-carotene, and 2,2-diphenyl-1-picrylhydrazyl (DPPH). Of the 1,260 extracts, 837 (66.43%) presented a ß-carotene/bleaching response, and 1,205 (95.63%) presented a radical scavenging response. Alkaloids were found in 203 extracts (16.11%). Anthraquinones were found in 14 extracts (1.11%), cardenolides were found in eight extracts (0.63%). The present findings shows the importance of the Brazilian Amazon plants as sources of antioxidant and radical scavenging active compounds.(AU)
Texto completo:
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Índice:
LILACS (Américas)
Asunto principal:
Extractos Vegetales
/
Ecosistema Amazónico
/
Annonaceae
/
Antioxidantes
Tipo de estudio:
Estudio diagnóstico
/
Estudio pronóstico
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Rev. ciênc. farm. básica apl
Asunto de la revista:
Farmacología
Año:
2017
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Núcleo de Pesquisas em Biodiversidade da Universidade Paulista/BR
/
Universidade Paulista/BR
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