New Phenolic Compounds and Antioxidant Potential of Catharanthus roseus

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

Autores

Federico Ferreres (Autor) Outra; David M Pereira (Autor) Outra; Patricia Valentao (Autor) FFUP; Paula B Andrade (Autor) FFUP; Rosa M Seabra (Autor) Outra; Mariana Sottomayor (Autor) FCUP

Revista

Título: Journal of Agricultural and Food Chemistry

Vol. 56 Nº 24

Páginas: 9967-9974

ISSN: 0021-8561

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 76 Citações

Scopus - 89 Citações

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

Outras Informações

ID Authenticus: P-003-TXH

DOI: 10.1021/jf8022723

Resumo (PT): Screening of the phenolic compounds from seeds, stems, leaves and petals of Catharanthus roseus (L.) G. Don (cv. Little Bright Eye) was achieved by HPLC-DAD-ESI-MS/MS. This is the first detailed study of noncolored phenolics in C. roseus, which allowed the characterization of three caffeoylquinic acids and fifteen flavonol glycosides (di- and trisaccharides of kaempferol, quercetin and isorhamnetin). Fifteen compounds are reported for the first time in this species. The scavenging ability of the different plant matrices was assessed against DPPH• radical and against reactive oxygen (superoxide radical) and a reactive nitrogen (nitric oxide) species. A concentration-dependent protective effect was observed for seeds and tissues, with petals shown to be the most active. <br> <br> <a target="_blank" href="http://pubs.acs.org/doi/abs/10.1021/jf8022723"> Texto integral </a> <br> <br>

Abstract (EN): Screening of the phenolic compounds from seeds, stems, leaves and petals of Catharanthus roseus (L.) G. Don (cv. Little Bright Eye) was achieved by HPLC-DAD-ESI-MS/MS. This is the first detailed study of noncolored phenolics in C. roseus, which allowed the characterization of three caffeoylquinic acids and fifteen flavonol glycosides (di- and trisaccharides of kaempferol, quercetin and isorhamnetin). Fifteen compounds are reported for the first time in this species. The scavenging ability of the different plant matrices was assessed against DPPH center dot radical and against reactive oxygen (superoxide radical) and a reactive nitrogen (nitric oxide) species. A concentration-dependent protective effect was observed for seeds and tissues, with petals shown to be the most active.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 8