On the Electrochemical Oxidation of Resveratrol

Detalhes bibliográficos
Autor(a) principal: Corduneanu, Oana
Data de Publicação: 2006
Outros Autores: Janeiro, Patricia, Brett, Ana Maria Oliveira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/8278
https://doi.org/10.1002/elan.200503469
Resumo: Resveratrol (3,5,4prime-trihydroxystilbene) is an organic metabolite produced by plants in response to fungal infection. It is found in various plant fruits and is abundant in the skins of unripe grapes and related products. This photosensitive molecule exists in two isomeric forms, trans and cis-resveratrol. The antioxidant activity of resveratrol, both trans and cis forms, was evaluated by means of cyclic, differential pulse and square-wave voltammetry over a wide pH range, using a glassy carbon electrode. Voltammograms of resveratrol presented two oxidation peaks; the first oxidation peak corresponds to the oxidation of the phenol group and was shown to undergo an irreversible oxidation reaction. The second oxidation peak corresponds to the oxidation of the resorcinol moiety and is also irreversible. The influence of pH on the electrochemical oxidation process of resveratrol was investigated.
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spelling On the Electrochemical Oxidation of ResveratrolResveratrol (3,5,4prime-trihydroxystilbene) is an organic metabolite produced by plants in response to fungal infection. It is found in various plant fruits and is abundant in the skins of unripe grapes and related products. This photosensitive molecule exists in two isomeric forms, trans and cis-resveratrol. The antioxidant activity of resveratrol, both trans and cis forms, was evaluated by means of cyclic, differential pulse and square-wave voltammetry over a wide pH range, using a glassy carbon electrode. Voltammograms of resveratrol presented two oxidation peaks; the first oxidation peak corresponds to the oxidation of the phenol group and was shown to undergo an irreversible oxidation reaction. The second oxidation peak corresponds to the oxidation of the resorcinol moiety and is also irreversible. The influence of pH on the electrochemical oxidation process of resveratrol was investigated.2006info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/8278http://hdl.handle.net/10316/8278https://doi.org/10.1002/elan.200503469engElectroanalysis. 18:8 (2006) 757-762Corduneanu, OanaJaneiro, PatriciaBrett, Ana Maria Oliveirainfo: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:RCAAP2020-05-25T13:16:30Zoai:estudogeral.uc.pt:10316/8278Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:01:42.871830Repositório 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 On the Electrochemical Oxidation of Resveratrol
title On the Electrochemical Oxidation of Resveratrol
spellingShingle On the Electrochemical Oxidation of Resveratrol
Corduneanu, Oana
title_short On the Electrochemical Oxidation of Resveratrol
title_full On the Electrochemical Oxidation of Resveratrol
title_fullStr On the Electrochemical Oxidation of Resveratrol
title_full_unstemmed On the Electrochemical Oxidation of Resveratrol
title_sort On the Electrochemical Oxidation of Resveratrol
author Corduneanu, Oana
author_facet Corduneanu, Oana
Janeiro, Patricia
Brett, Ana Maria Oliveira
author_role author
author2 Janeiro, Patricia
Brett, Ana Maria Oliveira
author2_role author
author
dc.contributor.author.fl_str_mv Corduneanu, Oana
Janeiro, Patricia
Brett, Ana Maria Oliveira
description Resveratrol (3,5,4prime-trihydroxystilbene) is an organic metabolite produced by plants in response to fungal infection. It is found in various plant fruits and is abundant in the skins of unripe grapes and related products. This photosensitive molecule exists in two isomeric forms, trans and cis-resveratrol. The antioxidant activity of resveratrol, both trans and cis forms, was evaluated by means of cyclic, differential pulse and square-wave voltammetry over a wide pH range, using a glassy carbon electrode. Voltammograms of resveratrol presented two oxidation peaks; the first oxidation peak corresponds to the oxidation of the phenol group and was shown to undergo an irreversible oxidation reaction. The second oxidation peak corresponds to the oxidation of the resorcinol moiety and is also irreversible. The influence of pH on the electrochemical oxidation process of resveratrol was investigated.
publishDate 2006
dc.date.none.fl_str_mv 2006
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10316/8278
http://hdl.handle.net/10316/8278
https://doi.org/10.1002/elan.200503469
url http://hdl.handle.net/10316/8278
https://doi.org/10.1002/elan.200503469
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Electroanalysis. 18:8 (2006) 757-762
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