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

Influence of the Cation Nature of the Sulphate Salt on the Electrochemical Synthesis of Sulfate-Dope...

Magnetic transition phase diagram of cobalt clusters electrodeposited on HOPG: Experimental and micr...

ELECTROCHEMICAL STUDY ABOUT ZINC ELECTRODEPOSITION ONTO GCE AND HOPG SUBSTRATES

Effect of TiO2-Al2O3 sol-gel supports on the superficial Ni and Mo species in oxidized and sulfided ...

Nucleation and growth of cobalt onto different substrates: Part II. The upd-opd transition onto a go...

THEORETICAL STUDY ON THE MODIFICATION OF ACTIVE SITES IN GOLD SURFACES MODELED AS FINITE CLUSTERS: I...

Morphological and magnetic properties of cobalt nanoclusters electrodeposited onto HOPG

Analysis of the experimental pressuretemperature behavior in the isotropicnematic phase transition f...

Copper Electrodeposition On Glassy Carbon And Highly Oriented Pyrolytic Graphite Substrates From Per...

Quantum chemical study of the electrochemical reduction of the [Co(H2O)6]2+ and [Co(NH3)5(H2O)]2+ io...