Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/2197
Título: Targeted metabolite analysis and antioxidant potential of rumex induratus
Autor: Guerra, Luís
Pereira, C.
Rodrigues, M.A.
Andrade, P.B.
Ferreres, F.
Palavras-chave: Rumex induratus
Phenolic compounds
Organic acids
Antioxidant activity
Data: 2008
Editora: ACS
Citação: Guerra, L.; Pereira, C.; Rodrigues, M.A.; Andrade, P. B.; Ferreres, F. (2008) - Targeted metabolite analysis and antioxidant potential of rumex induratus. Journal of Agricultural and Food Chemistry. ISSN 1520-5118. 56:17, p. 8184-8194.
Resumo: Targeted metabolite analysis of aqueous extract of Rumex induratus leaves, in terms of phenolic compounds and organic acids, and the study of its antioxidant activity against the DPPH• radical, a reactive oxygen species, hypochlorous acid, and a reactive nitrogen species, nitric oxide (•NO), were performed. The samples were collected in several locations, spontaneously occurring or from greenhouse culture, at different stages of development and seasons. The phenolic composition was achieved by high-performance liquid chromatography (HPLC)-diode array detection, and four hydroxycinnamic acid derivatives and 10 flavonoid glycosides (C- and O-heterosides) were determined. Organic acids composition was established by HPLC-UV, revealing five compounds. The total amount of phenolic compounds and organic acids were affected by growing conditions and developmental phase. The aqueous extract exhibited a doserelated activity against all tested reactive species.
URI: http://hdl.handle.net/10198/2197
ISSN: 1520-5118
Versão do Editor: http://pubs.acs.org/doi/abs/10.1021/jf801385z
Aparece nas colecções:PTV - Artigos em Revistas Indexados ao ISI/Scopus



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