Circular dichroism of anthocyanidin 3-glucoside self-aggregates

Detalhes bibliográficos
Autor(a) principal: Gavara, Raquel
Data de Publicação: 2013
Outros Autores: Petrov, Vesselin, Quintas, Alexandre, Pina, Fernando
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.26/6830
Resumo: “NOTICE: this is the author’s version of a work that was accepted for publication in Phytochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Phytochemistry Volume 88, April 2013, Pages 92–98. DOI 10.1016/j.phytochem.2012.12.011 ."
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spelling Circular dichroism of anthocyanidin 3-glucoside self-aggregatesCircular dichroismAnthocyaninsJ and H aggregates“NOTICE: this is the author’s version of a work that was accepted for publication in Phytochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Phytochemistry Volume 88, April 2013, Pages 92–98. DOI 10.1016/j.phytochem.2012.12.011 ."“NOTICE: this is the author’s version of a work that was accepted for publication in Phytochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Phytochemistry Volume 88, April 2013, Pages 92–98. DOI 10.1016/j.phytochem.2012.12.011 .""Self-association constants for the flavylium cations of the six most common anthocyanidin 3-glucosides were determined by circular dichroism (CD) and UV–Vis spectroscopy. Along with previous 1H NMR results, all measurements were consistent with a monomer–dimer model. The CD spectra of the antho-cyanidin 3-glucosides were similar to the analogues 3,5-diglucosides. All dimers of the anthocyanidin 3-glucosides exhibited left-handed CD signals, with petunidin-3-glucoside and myrtillin having the most intense signals. In addition, the magnitude of the molar ellipticity, [h], was generally higher for the 3-glucosides than for the 3,5-diglucosides. For all six anthocyanins studied, the CD absorption spectra of their dimers showed evidence of the splitting of the monomer absorption into lower (J) and higher (H) energy bands. The angle and the distance between the dipolar moments of the two monomers comprising the dimer were obtained from the lower energy absorption band. While the angle was more or less similar in all six dimers, the separation distance between the monomer dipole moments differed dramatically. The intensity of the CD signal displayed a linear dependence with the inverse square of the dipole moment distances."ElsevierRepositório ComumGavara, RaquelPetrov, VesselinQuintas, AlexandrePina, Fernando2014-10-17T15:38:14Z2013-04-01T00:00:00Z2013-04-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/6830engPhytochemistry. 2013 Apr;88:92-98. doi: 10.1016/j.phytochem.2012.12.0110031-9422info: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:RCAAP2022-10-06T14:51:30Zoai:comum.rcaap.pt:10400.26/6830Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:06:05.762028Repositório 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 Circular dichroism of anthocyanidin 3-glucoside self-aggregates
title Circular dichroism of anthocyanidin 3-glucoside self-aggregates
spellingShingle Circular dichroism of anthocyanidin 3-glucoside self-aggregates
Gavara, Raquel
Circular dichroism
Anthocyanins
J and H aggregates
title_short Circular dichroism of anthocyanidin 3-glucoside self-aggregates
title_full Circular dichroism of anthocyanidin 3-glucoside self-aggregates
title_fullStr Circular dichroism of anthocyanidin 3-glucoside self-aggregates
title_full_unstemmed Circular dichroism of anthocyanidin 3-glucoside self-aggregates
title_sort Circular dichroism of anthocyanidin 3-glucoside self-aggregates
author Gavara, Raquel
author_facet Gavara, Raquel
Petrov, Vesselin
Quintas, Alexandre
Pina, Fernando
author_role author
author2 Petrov, Vesselin
Quintas, Alexandre
Pina, Fernando
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório Comum
dc.contributor.author.fl_str_mv Gavara, Raquel
Petrov, Vesselin
Quintas, Alexandre
Pina, Fernando
dc.subject.por.fl_str_mv Circular dichroism
Anthocyanins
J and H aggregates
topic Circular dichroism
Anthocyanins
J and H aggregates
description “NOTICE: this is the author’s version of a work that was accepted for publication in Phytochemistry. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Phytochemistry Volume 88, April 2013, Pages 92–98. DOI 10.1016/j.phytochem.2012.12.011 ."
publishDate 2013
dc.date.none.fl_str_mv 2013-04-01T00:00:00Z
2013-04-01T00:00:00Z
2014-10-17T15:38:14Z
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/10400.26/6830
url http://hdl.handle.net/10400.26/6830
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Phytochemistry. 2013 Apr;88:92-98. doi: 10.1016/j.phytochem.2012.12.011
0031-9422
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
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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