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Title: Screening of antioxidant compounds during sprouting of Brassica oleracea L. var. costata DC
Author: Sousa, C.
Lopes, Graciliana
Pereira, D.M.
Taveira, M.
Valentão, P.
Seabra, R.M.
Pereira, J.A.
Baptista, Paula
Ferreres, F.
Andrade, P.B.
Keywords: Brassica oleracea L. var. costata DC
Phenolic compounds
Organic acids
Issue Date: 2007
Publisher: Bentham Science Publisher
Citation: Sousa, C.; Lopes, Graciliana; Pereira, D.M.; Taveira, M.; Valentão, P.; Seabra, R.M.; Pereira, J.A.; Baptista, Paula; Ferreres, F.; Andrade, P.B. (2007) - Screening of antioxidant compounds during sprouting of Brassica oleracea L. var. costata DC. Combinatorial Chemistry & High Throughput Screening. ISSN 1386-2073. 10:5, p. 377-386
Abstract: 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.
Peer review: yes
ISSN: 1386-2073
Appears in Collections:PTV - Artigos em Revistas Indexados ao ISI/Scopus

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