Producción Científica Profesorado

Purification of Anthocyanins with oDihydroxy Arrangement by Sorption in Cationic Resins Charged with Fe(III).



Galan Vidal, Carlos Andres

2014

Purification of Anthocyanins with oDihydroxy Arrangement by Sorption in Cationic Resins Charged with Fe(III) Castaneda-Ovando, A; Galan-Vidal, CA; Contreras-Lopez, E; Paez-Hernandez, ME (2014) Journal of Chemistry 2014 1-9


Abstract


In the present work, a new purification method of anthocyanins with o-dihydroxy arrangement is proposed. This method is based on a ligand-exchange mechanism, using a cationic exchange resin loaded with metallic ions in order to increase the affinity of the resin to the anthocyanin(s) with o-dihydroxy arrangement. This method was used to purify the main anthocyanin (cyanidin-3-glucoside; Cy-3-glc) from the anthocyanic methanolic extract of blue corn. The best sorption result was using Fe(III) in its ion form. The purification procedure begins with the formation of a metal-anthocyanin complex (Cy-3-glc-Fe) which was optimal at pH 5, followed by a NaOH 0.1?M elution process in order to eliminate anthocyanins without o-dihydroxy arrangement, sugars, and organic acids. Finally, the pure anthocyanin is obtained by adding HCl 0.1?M which breaks the metal-anthocyanin complex.



Producto de Investigación




Artículos relacionados

Do Spiroarsoranes Exhibit Polytopal Equilibrium in Solution?

Cobalt electrodeposition on polycrystalline palladium. Influence of temperature on kinetic parameter...

Characterization of Main Anthocyanins Extracted from Pericarp Blue Corn by MALDI-ToF MS

Kinetics of Polypyrrole Films Doped with Sulphate Ions Electrodeposited Over Graphite - Epoxy Resin ...

Nucleation and growth of cobalt onto different substrates: Part I. Underpotential deposition onto a ...

Zinc Electrodeposition from Chloride Solutions onto Glassy Carbon Electrode

Predicting the Phase Diagram of a Liquid Crystal Using the Convex Peg Model and the Semiempirical PM...

A theoretical quantum study on the distribution of electrophilic and nucleophilic active sites on Ag...

A Semiempirical PM6 Study of Some Aminopyrimidine Derivatives and their Interaction with an Iron Sur...

Revisión de variables de diseño y condiciones de operación en la electrocoagulación