Screening of antioxidant compounds during sprouting of Brassica oleracea L. var. costata DC

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

Autores

Carla Sousa (Autor) REIT; Lopes, G (Autor) Outra; David M Pereira (Autor) Outra; Taveira, M (Autor) Outra; Patricia Valentao (Autor) FFUP; Seabra, RM (Autor) Outra; Pereira, JA (Autor) Outra; Baptista, P (Autor) Outra; Ferreres, F (Autor) Outra; Paula B Andrade (Autor) FFUP

Revista

Título: Combinatorial Chemistry and High Throughput Screening

Vol. 10

Páginas: 377-386

ISSN: 1386-2073

Editora: Bentham

Indexação

ISI Web of Knowledge - 24 Citações

ISI Web of Science

Scopus - 29 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Outras ciências médicas

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-004-9K7

DOI: 10.2174/138620707781662817

Resumo (PT): The changes in antioxidant compounds of Brassica oleracea L. var. costata DC seeds were monitored during the first twelve days of seedling development. Sprouts were screened at time intervals of two days for phenolic compounds and organic acids. The identified phenolic compounds included esters of sinapic acid with glucose, gentiobiose and kaempferol, as well as sinapoylcholine. The organic acids were oxalic, aconitic, citric, pyruvic, malic, shikimic, and fumaric acids. During germination, a depletion of phenolic compounds was observed, although no qualitative changes were seen. Among individual compounds, kaempferol, choline and glucose esters of sinapic acid showed a marked decrease between days two and six, whereas the changes in gentiobiose esters of sinapic acid were smaller. The total organic acids content increased rapidly during the first four days, with less significant variations thereafter. Malic acid, the major organic acid found in sprouts, greatly contributed to this result though oxalic, pyruvic, and fumaric acids also increased in the same manner. In contrast, aconitic, citric and shikimic acids showed decreases between days two and twelve of germination. <br> <br>

Abstract (EN): The changes in antioxidant compounds of Brassica oleracea L. var. costata DC seeds were monitored during the first twelve days of seedling development. Sprouts were screened at time intervals of two days for phenolic compounds and organic acids. The identified phenolic compounds included esters of sinapic acid with glucose, gentiobiose and kaempferol, as well as sinapoylcholine. The organic acids were oxalic, aconitic, citric, pyruvic, malic, shikimic, and fumaric acids. During germination, a depletion of phenolic compounds was observed, although no qualitative changes were seen. Among individual compounds, kaempferol, choline and glucose esters of sinapic acid showed a marked decrease between days two and six, whereas the changes in gentiobiose esters of sinapic acid were smaller. The total organic acids content increased rapidly during the first four days, with less significant variations thereafter. Malic acid, the major organic acid found in sprouts, greatly contributed to this result though oxalic, pyruvic, and fumaric acids also increased in the same manner. In contrast, aconitic, citric and shikimic acids showed decreases between days two and twelve of germination.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 10