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

Hydrogen bond studies in substituted N-(2-hydroxyphenyl)--2-[(4-methylbenzenesulfonyl)amino]acetamid...

Evaluación de Esteroides Aromáticos como Indicadores de Madurez Térmica en Extractos de Roca

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

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

Chemical Reactivity of Atrazine Employing the Fukui Function

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

Synthesis and crystal structures of cis-palladium(II) and cis-platinum(II) complexes containing di...

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

Efecto de la composición del soporte sobre las estructuras superficiales de óxidos de níquel y molib...

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