Targeted metabolite analysis and antioxidant potential of Rumex induratus

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Luis Guerra (Autor) Outra; Clara Pereira (Autor) Outra; Paula B Andrade (Autor) FFUP; Angelo A Rodrigues (Autor) Outra; Federico Ferreres (Autor) Outra; De Pinho, PG (Autor) Outra; Rosa M Seabra (Autor) Outra; Patricia Valentao (Autor) FFUP

Revista

Título: Journal of Agricultural and Food Chemistry

Vol. 56 Nº 24

Páginas: 8184-8194

ISSN: 0021-8561

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 12 Citações

ISI Web of Science

Scopus - 15 Citações

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-003-W81

DOI: 10.1021/jf801385z

Resumo (PT): 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 dose-related activity against all tested reactive species. <br> <br> <a target="_blank" href="http://pubs.acs.org/doi/abs/10.1021/jf801385z"> Texto integral </a> <br> <br>

Abstract (EN): 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 center dot radical, a reactive oxygen species, hypochlorous acid, and a reactive nitrogen species, nitric oxide ((NO)-N-center dot), 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 dose-related activity against all tested reactive species.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11