Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10198/757 |
Resumo: | Two Brassica oleracea varieties (B. oleracea L. var. costata DC and B. oleracea L. var. acephala) and Brassica rapa L. var. rapa inflorescences were studied for their chemical composition and antioxidant capacity. Phenolic compounds and organic acids profiles were determined by HPLC–DAD and HPLC–UV, respectively. B. oleracea var. costata and B. oleracea L. var. acephala inflorescences presented a similar qualitative phenolic composition, exhibiting several complex kaempferol derivatives and 3-p-coumaroylquinic acid, while B. rapa var. rapa was characterized by kaempferol and isorhamnetin glycosides and several phenolic acids derivatives. B. oleracea L. var. costata and B. rapa var. rapa showed the highest phenolics content. The three Brassica exhibited the same six organic acids (aconitic, citric, pyruvic, malic, shikimic and fumaric acids), but B. oleracea L. var. acephala presented a considerably higher amount. Each inflorescence 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 samples were also studied for its antimicrobial potential against Gram-positive and Gram-negative bacteria and fungi, displaying antimicrobial capacity only against Gram-positive bacteria. |
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Inflorescences of Brassicacea species as source of bioactive compounds: a comparative studyBrassica oleracea L. var. costata DCBrassica oleracea L. var. acephalaBrassica rapa var. rapa L.InflorescencesPhenolic compoundsOrganic acidsAntioxidant activityAntimicrobial activityTwo Brassica oleracea varieties (B. oleracea L. var. costata DC and B. oleracea L. var. acephala) and Brassica rapa L. var. rapa inflorescences were studied for their chemical composition and antioxidant capacity. Phenolic compounds and organic acids profiles were determined by HPLC–DAD and HPLC–UV, respectively. B. oleracea var. costata and B. oleracea L. var. acephala inflorescences presented a similar qualitative phenolic composition, exhibiting several complex kaempferol derivatives and 3-p-coumaroylquinic acid, while B. rapa var. rapa was characterized by kaempferol and isorhamnetin glycosides and several phenolic acids derivatives. B. oleracea L. var. costata and B. rapa var. rapa showed the highest phenolics content. The three Brassica exhibited the same six organic acids (aconitic, citric, pyruvic, malic, shikimic and fumaric acids), but B. oleracea L. var. acephala presented a considerably higher amount. Each inflorescence 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 samples were also studied for its antimicrobial potential against Gram-positive and Gram-negative bacteria and fungi, displaying antimicrobial capacity only against Gram-positive bacteria.ElsevierBiblioteca Digital do IPBSousa, CarlaTaveira, MarcosValentão, PatríciaFernandes, FátimaPereira, J.A.Estevinho, Leticia M.Bento, AlbinoFerreres, FredericoSeabra, Rosa M.Andrade, Paula B.2008-09-04T09:24:10Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/757engSousa, C.; Taveira, M.; Valentão, P.; Fernandes, F.; Pereira, J.A.; Estevinho, Letícia M.; Bento, Albino; Ferreres, F.; Seabra, R.M.; Andrade, P.B. (2008). Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study. Food Chemistry. ISSN 0308-8146. 110:4, p. 953-9610308-814610.1016/j.foodchem.2008.02.087info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-21T10:03:49Zoai:bibliotecadigital.ipb.pt:10198/757Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:54:25.432667Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
title |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
spellingShingle |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study Sousa, Carla Brassica oleracea L. var. costata DC Brassica oleracea L. var. acephala Brassica rapa var. rapa L. Inflorescences Phenolic compounds Organic acids Antioxidant activity Antimicrobial activity |
title_short |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
title_full |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
title_fullStr |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
title_full_unstemmed |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
title_sort |
Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study |
author |
Sousa, Carla |
author_facet |
Sousa, Carla Taveira, Marcos Valentão, Patrícia Fernandes, Fátima Pereira, J.A. Estevinho, Leticia M. Bento, Albino Ferreres, Frederico Seabra, Rosa M. Andrade, Paula B. |
author_role |
author |
author2 |
Taveira, Marcos Valentão, Patrícia Fernandes, Fátima Pereira, J.A. Estevinho, Leticia M. Bento, Albino Ferreres, Frederico Seabra, Rosa M. Andrade, Paula B. |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Sousa, Carla Taveira, Marcos Valentão, Patrícia Fernandes, Fátima Pereira, J.A. Estevinho, Leticia M. Bento, Albino Ferreres, Frederico Seabra, Rosa M. Andrade, Paula B. |
dc.subject.por.fl_str_mv |
Brassica oleracea L. var. costata DC Brassica oleracea L. var. acephala Brassica rapa var. rapa L. Inflorescences Phenolic compounds Organic acids Antioxidant activity Antimicrobial activity |
topic |
Brassica oleracea L. var. costata DC Brassica oleracea L. var. acephala Brassica rapa var. rapa L. Inflorescences Phenolic compounds Organic acids Antioxidant activity Antimicrobial activity |
description |
Two Brassica oleracea varieties (B. oleracea L. var. costata DC and B. oleracea L. var. acephala) and Brassica rapa L. var. rapa inflorescences were studied for their chemical composition and antioxidant capacity. Phenolic compounds and organic acids profiles were determined by HPLC–DAD and HPLC–UV, respectively. B. oleracea var. costata and B. oleracea L. var. acephala inflorescences presented a similar qualitative phenolic composition, exhibiting several complex kaempferol derivatives and 3-p-coumaroylquinic acid, while B. rapa var. rapa was characterized by kaempferol and isorhamnetin glycosides and several phenolic acids derivatives. B. oleracea L. var. costata and B. rapa var. rapa showed the highest phenolics content. The three Brassica exhibited the same six organic acids (aconitic, citric, pyruvic, malic, shikimic and fumaric acids), but B. oleracea L. var. acephala presented a considerably higher amount. Each inflorescence 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 samples were also studied for its antimicrobial potential against Gram-positive and Gram-negative bacteria and fungi, displaying antimicrobial capacity only against Gram-positive bacteria. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-09-04T09:24:10Z 2008 2008-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10198/757 |
url |
http://hdl.handle.net/10198/757 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Sousa, C.; Taveira, M.; Valentão, P.; Fernandes, F.; Pereira, J.A.; Estevinho, Letícia M.; Bento, Albino; Ferreres, F.; Seabra, R.M.; Andrade, P.B. (2008). Inflorescences of Brassicacea species as source of bioactive compounds: a comparative study. Food Chemistry. ISSN 0308-8146. 110:4, p. 953-961 0308-8146 10.1016/j.foodchem.2008.02.087 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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