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Cyanidin\u20103\u2010glucoside (cy3glc) revealed a stronger interaction than malvidin\u20103\u2010glucoside (mv3glc) at pH\u20051 according to their apparent association constants. A higher color increased was also obtained for cy3glc at pH\u20053.5 as a result of this stronger interaction. A high\u2010frequency chemical shift of the cy3glc aromatic protons suggest the formation of ionic pairs. The interaction parameters (<jats:italic>K\u2248<\/jats:italic>700\u2009<jats:sc>m<\/jats:sc><jats:sup>\u22121<\/jats:sup>, <jats:italic>n<\/jats:italic>\u2248295) indicated the binding of approximately two anthocyanin molecules by each sulfate group. The equilibrium and rate constants of cy3glc in the presence of dendrimer showed an increased stability of the flavylium cation and a higher protection of this species from hydration (p<jats:italic>K<\/jats:italic>\u2032<jats:sub>a<\/jats:sub> and p<jats:italic>K<\/jats:italic><jats:sub>h<\/jats:sub> increased almost one pH unit). The tuning and color stabilization of anthocyanins by using this dendrimer allow novel applications as colorimetric sensors for food packaging.<\/jats:p>","DOI":"10.1002\/chem.201901912","type":"journal-article","created":{"date-parts":[[2019,7,2]],"date-time":"2019-07-02T06:24:21Z","timestamp":1562048661000},"page":"11696-11706","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Impact of a Water\u2010Soluble Gallic Acid\u2010Based Dendrimer on the Color\u2010Stabilizing Mechanisms of Anthocyanins"],"prefix":"10.1002","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2226-0404","authenticated-orcid":false,"given":"Lu\u00eds","family":"Cruz","sequence":"first","affiliation":[{"name":"REQUIMTE\/LAQV Departamento de Qu\u00edmica e, Bioqu\u00edmica, Faculdade de Ci\u00eancias Universidade do Porto  Rua do Campo Alegre, s\/n 4169-007 Porto Portugal"}]},{"given":"Nuno","family":"Bas\u00edlio","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE Departamento de Qu\u00edmica Faculdade de Ci\u00eancias e Tecnologia Universidade, Nova de Lisboa  2829-516 Caparica Portugal"}]},{"given":"Johan","family":"Mendoza","sequence":"additional","affiliation":[{"name":"LAQV, REQUIMTE Departamento de Qu\u00edmica Faculdade de Ci\u00eancias e Tecnologia Universidade, Nova de Lisboa  2829-516 Caparica Portugal"}]},{"given":"Nuno","family":"Mateus","sequence":"additional","affiliation":[{"name":"REQUIMTE\/LAQV Departamento de Qu\u00edmica e, Bioqu\u00edmica, Faculdade de Ci\u00eancias Universidade do Porto  Rua do Campo Alegre, s\/n 4169-007 Porto Portugal"}]},{"given":"Victor","family":"de\u2005Freitas","sequence":"additional","affiliation":[{"name":"REQUIMTE\/LAQV Departamento de Qu\u00edmica e, Bioqu\u00edmica, Faculdade de Ci\u00eancias Universidade do Porto  Rua do Campo Alegre, s\/n 4169-007 Porto Portugal"}]},{"given":"Maun 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