Vinylcatechin dimers are much better copigments for anthocyanins than catechin dimer procyanidin b3

Journal of Agricultural and Food Chemistry
Luis CruzVictor de Freitas

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.

References

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Oct 13, 2009·Journal of Agricultural and Food Chemistry·Luís CruzVictor de Freitas
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Citations

Mar 2, 2012·Journal of Agricultural and Food Chemistry·Belén GordilloFrancisco J Heredia
Jul 9, 2013·Journal of Agricultural and Food Chemistry·Natércia TeixeiraVictor de Freitas
Mar 10, 2016·Chemical Reviews·Patrick TrouillasOlivier Dangles
Jul 1, 2012·Wiley Interdisciplinary Reviews. Computational Molecular Science·B Lachele FoleyRobert J Woods
Feb 9, 2012·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Fei HeChang-Qing Duan
Jul 3, 2019·Chemistry : a European Journal·Luís CruzEduardo Fernandez-Megia
Jun 6, 2018·Journal of Agricultural and Food Chemistry·Paula AraújoJoana Oliveira
Nov 18, 2015·Journal of Chemical Theory and Computation·Sushil K MishraJaroslav Koča

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