Please use this identifier to cite or link to this item: http://hdl.handle.net/10216/101318
Author(s): Luis Cruz
Natercia F Bras
Natercia Teixeira
Nuno Mateus
Maria Joao Ramos
Olivier Dangles
Victor De Freitas
Title: Vinylcatechin Dimers Are Much Better Copigments for Anthocyanins than Catechin Dimer Procyanidin B3
Issue Date: 2010
Abstract: The binding constants (K) for the interaction of three copigments (CP), two epimeric vinylcatechin dimers (CP1 and CP2), and catechin dimer B3 (CP3) with two pigments, malvidin-3-glucoside (oenin) and malvidin-3,5-diglucoside (malvin), were determined. The K values clearly show that both vinylcatechin dimers have much higher affinity for oenin and malvin than dimer B3: K(CP2) > K(CP1) >> K(CP3). Quantum mechanics and molecular dynamics calculations were also performed to interpret the binding data and specify the relative arrangement of the pigment and copigment molecules within the complexes.
Subject: Outras ciências agrárias
Other Agrarian Sciences
Call Number: 49211
URI: http://hdl.handle.net/10216/101318
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FCUP - Artigo em Revista Científica Internacional

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