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

The role of temperature in copper electrocrystallization in ammoniachloride solutions

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

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

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

Bioacumulación y daños genotóxicos en Pez Cebra (Danio rerio) por arsénico en aguas de Zimapán, Hida...

Cobalt electrodeposition onto highly oriented pyrolytic graphite (HOPG) electrode from ammonium sulf...

Nucleation and Growth Kinetics of Electrodeposited Sulfate-Doped Polypyrrole: Determination of the D...

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

Electrochemical kinetic study about cobalt electrodeposition onto GCE and HOPG substrates from sulfa...

A Voltammetric Study Of The Underpotential Deposition Of Cobalt Onto A Glassy Carbon Electrode