Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds: Phytochemical characterization and antioxidant potential

• Tipo: Artigo em Revista Científica Internacional
• Data: 2007

Autores

Federico Ferreres (Autor) Outra; Carla Sousa (Autor) REIT; Patricia Valentao (Autor) FFUP; Rosa M Seabra (Autor) Outra; Jose A Pereira (Autor) Outra; Paula B Andrade (Autor) FFUP

Revista

Título: Food Chemistry

Vol. 101 Nº 2

Páginas: 549-558

ISSN: 0308-8146

Editora: Elsevier

Indexação

ISI Web of Knowledge - 46 Citações

ISI Web of Science

Scopus - 57 Citações

Classificação Científica

FOS: Ciências agrárias > Outras ciências agrárias

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-004-D6K

DOI: 10.1016/j.foodchem.2006.02.013

Resumo (PT): Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds were studied for their chemical composition and antioxidant capacity. Thirteen phenolic compounds were characterized and quantified by reversed-phase HPLC-DAD-MS/MS-ESI and HPLC-DAD, respectively: two sinapoylgentiobiose isomers, three sinapoylglucose isomers, kaempferol-3-(sinapoyl)sophorotrioside-7-glucoside, sinapoylcholine, kaempferol-3,7-diglucoside-4′-(sinapoyl)glucoside, three disinapoylgentiobiose isomers, 1,2,2′-trisinapoylgentiobiose and 1,2-disinapoylglucose. Seven organic acids (aconitic, citric, ascorbic, malic, quinic, shikimic and fumaric acids) were also identified and quantified by HPLC-UV. The aqueous extract of tronchuda cabbage seeds was investigated for its capacity to act as a scavenger of DPPH radical and reactive oxygen species (superoxide radical, hydroxyl radical and hypochlorous acid), exhibiting antioxidant capacity in a concentration-dependent manner against all radicals. These results may be attributed to the high content of hydroxycinnamic derivatives and ascorbic acid. <br> <br> Keywords: Tronchuda cabbage seeds; Brassica oleracea L. var. costata DC; Phenolic compounds; Organic acids; Antioxidant capacity <br> <a target="_blank" href="http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T6R-4JJ884V-5&_user=2460038&_coverDate=12%2F31%2F2007&_rdoc=15&_fmt=high&_orig=browse&_srch=doc-info(%23toc%235037%232007%23998989997%23632445%23FLA%23display%23Volume)&_cdi=5037&_sort=d&_docanchor=&_ct=56&_acct=C000057398&_version=1&_urlVersion=0&_userid=2460038&md5=a7db9185f9804ae123c2266e8509f036"> Texto integral </a> <br> <br>

Abstract (EN): Tronchuda cabbage (Brassica oleracea L. var. costata DC) seeds were studied for their chemical composition and antioxidant capacity. Thirteen phenolic compounds were characterized and quantified by reversed-phase HPLC-DAD-MS/MS-ESI and HPLC-DAD, respectively: two sinapoylgentiobiose isomers, three sinapoylglucose isomers, kaempferol-3-(sinapoyl)sophorotrioside-7-glucoside, sinapoylcholine, kaempferol-3,7-diglucoside-4'-(sinapoyl)glucoside, three disinapoylgentiobiose isomers, 1,2,2'-trisinapoylgentiobiose and 1,2-disinapoylglucose. Seven organic acids (aconitic, citric, ascorbic, malic, quinic, shikimic and fumaric acids) were also identified and quantified by HPLC-UV. The aqueous extract of tronchuda cabbage seeds was investigated for its capacity to act as a scavenger of DPPH. radical and reactive oxygen species (superoxide radical, hydroxyl radical and hypochlorous acid), exhibiting antioxidant capacity in a concentration-dependent manner against all radicals. These results may be attributed to the high content of hydroxycinnamic derivatives and ascorbic acid.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10