Immobilization of commercial laccase onto green coconut fiber by adsorption and its application for reactive textile dyes degradation
作者： Raquel O. Cristóvão , Ana P.M. Tavares , Ana Iraidy Brígida , José M. Loureiro , Rui A.R. Boaventura
DOI: 10.1016/J.MOLCATB.2011.04.014
关键词: Laccase 、 Biocatalysis 、 Effluent 、 Chemical engineering 、 Enzyme action 、 Contact time 、 Chemistry 、 Adsorption 、 Sewage treatment 、 Immobilized enzyme 、 Chromatography
摘要: Abstract An effort has been made to find a cheaper, easily available and simple alternative for the immobilization of enzymes subsequent utilization at large scale in textile wastewater treatment. Commercial laccase was immobilized first time on an agroindustrial residue, green coconut fiber, by physical adsorption. The effect conditions (enzyme concentration, contact pH value) properties biocatalyst determined. Then, enzyme characterization performed kinetic parameters were obtained. Thermal operational stabilities improved compared with free commercial showing its potential continuous applications. Finally, performance degradation various reactive dyes mixture them batch reactors evaluated. Two phenomena observed: decolourization solutions due adsorption support action. A high percentage practically all two cycles effective dye obtained, suitability colour removal from industrial effluents.
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