Antioxidant activities of isolated compounds from stems of Mimosa invisa Mart. ex Colla

Química Nova

David, Juceni P.¹  Lima, Luciano S.¹  Universidade Federal da Bahia, Salvador, Brasil¹  Universidade Estadual do Sudoeste da Bahia, Jequié, Brasil¹  Universidade Estadual de Feira de Santana, Feira de Santana, Brasil¹  Aguiar, Rosane M.¹  Queiróz, Luciano P. de¹  Alves, Clayton Q.¹  David, Jorge M.¹  Rezende, Larissa C. de¹ 

关键词: Mimosa invisa;    lignans;    4';    6;    7-trimethoxyflavonol.;   

DOI  :  10.1590/S0100-40422012000300024

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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.

【 授权许可】

Unknown