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metadata.dc.type: | Artigo de Periódico |
Title: | Antioxidant activities of isolated compounds from stems of Mimosa invisa Mart. ex Colla |
Other Titles: | Química Nova |
Authors: | Alves, Clayton Queiroz David, Jorge Mauricio Rezende, Larissa Cavalcante de Lima, Luciano S. David, Juceni Pereira de Lima Aguiar, Rosane Moura Queiroz, Luciano Paganucci de |
metadata.dc.creator: | Alves, Clayton Queiroz David, Jorge Mauricio Rezende, Larissa Cavalcante de Lima, Luciano S. David, Juceni Pereira de Lima Aguiar, Rosane Moura Queiroz, Luciano Paganucci de |
Abstract: | This work describes the phytochemical study of stems of Mimosa invisa (Mimosaceae) and the evaluation of the antioxidant potential of isolated compounds. Cromatografic techniques were employed to isolate salicifoliol, pinoresinol, quercetin, quercetin-3-O-rhamnopyranosyl, quercetin-3-O-arabinofuranosyl lupeol, β-amyrin, sitosterol, p-hydroxy coumaric acid, 4-hydroxy-3-methoxy benzaldehyde (vanillin), 4-hydroxy-3,5-dimethoxy benzaldehyde, 4-hydroxy-3-methoxy benzoic acid and 4',6,7- trimethoxy flavonol. The latter had been previously described but the spectrometric data shown indicated the structure required review. The antioxidant activity of the compounds was evaluated by the DPPH test and capability of NBT reduction by superoxide radicals. Quercetin glycosides showed lower antioxidant potential than quercetin and, salicifoliol was found to be more active than pinoresinol. |
Keywords: | Mimosa invisa Lignans 4',6,7-trimethoxyflavonol |
metadata.dc.publisher.country: | Brasil |
metadata.dc.rights: | Acesso Aberto |
URI: | http://repositorio.ufba.br/ri/handle/ri/15532 |
Issue Date: | 2012 |
Appears in Collections: | Artigo Publicado em Periódico (Química) |
Files in This Item:
File | Description | Size | Format | |
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Clayton Q. Alves.pdf | 416,24 kB | Adobe PDF | View/Open |
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