Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Effect Of Metal Ions On Triphenylmethane Dye Decolorization By Laccase From Trametes Versicolor

Effect Of Metal Ions On Triphenylmethane Dye Decolorization By Laccase From Trametes Versicolor Abstract The aim of this study was investigate the influence of different metal ions on laccase activity and triphenylmethane dye decolorization by laccase from white-rot fungus Trametes versicolor . Laccase activity was inhibited by monovalent ions (Li + , Na + , K + and Ag + ) but the presence of divalent ions increased laccase activity at the concentration of 10 mmol/l. The effect of metal ions on decolorization of triphenylmethane dyes with different structures namely Bromochlorophenol Blue, Bromophenol Blue, Bromocresol Blue and Phenol Red was tested. The presence of metal ions (Na + , K + , Mg 2+ , Ca 2+ , Ba 2+ , Mn 2+ , Zn 2+ ) slightly decreased triphenylmethane dye decolorization by laccase from T. versicolor except Na + and Mg 2+ , which caused the increase of decolorization for all tested dyes. Decolorization of selected dyes showed that the presence of low-molecular-weight compounds is necessary for effective decolorization. Hydroxybenzotriazole (HBT) is the most frequently used. Although HBT belongs to most frequently used redox mediator and generally increase decolorization efficiency, so its presence decreased decolorization percentage of Bromophenol Blue and Bromochlorophenol Blue, the influence of metal ions to dye decolorization by laccase has the similar course with or without presence of redox mediator HBT. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nova Biotechnologica et Chimica de Gruyter

Effect Of Metal Ions On Triphenylmethane Dye Decolorization By Laccase From Trametes Versicolor

Loading next page...
 
/lp/de-gruyter/effect-of-metal-ions-on-triphenylmethane-dye-decolorization-by-laccase-mC9DYkTQyJ
Publisher
de Gruyter
Copyright
Copyright © 2015 by the
ISSN
1338-6905
eISSN
1338-6905
DOI
10.1515/nbec-2015-0026
Publisher site
See Article on Publisher Site

Abstract

Abstract The aim of this study was investigate the influence of different metal ions on laccase activity and triphenylmethane dye decolorization by laccase from white-rot fungus Trametes versicolor . Laccase activity was inhibited by monovalent ions (Li + , Na + , K + and Ag + ) but the presence of divalent ions increased laccase activity at the concentration of 10 mmol/l. The effect of metal ions on decolorization of triphenylmethane dyes with different structures namely Bromochlorophenol Blue, Bromophenol Blue, Bromocresol Blue and Phenol Red was tested. The presence of metal ions (Na + , K + , Mg 2+ , Ca 2+ , Ba 2+ , Mn 2+ , Zn 2+ ) slightly decreased triphenylmethane dye decolorization by laccase from T. versicolor except Na + and Mg 2+ , which caused the increase of decolorization for all tested dyes. Decolorization of selected dyes showed that the presence of low-molecular-weight compounds is necessary for effective decolorization. Hydroxybenzotriazole (HBT) is the most frequently used. Although HBT belongs to most frequently used redox mediator and generally increase decolorization efficiency, so its presence decreased decolorization percentage of Bromophenol Blue and Bromochlorophenol Blue, the influence of metal ions to dye decolorization by laccase has the similar course with or without presence of redox mediator HBT.

Journal

Nova Biotechnologica et Chimicade Gruyter

Published: Dec 1, 2015

References