Effect of heavy metals on the production of several laccase isoenzymes by Trametes versicolor and on their ability to decolourise dyes

The white-rot fungus Trametes versicolor growing in submerged culture on a basal medium, with barley bran as a carbon source, produced two laccase isoenzymes LacI and LacII. The addition of metal ions to the culture medium was performed to improve the total laccase activity and to determine the effect on the production of laccase isoenzymes. From all the tested metals, only Cu2+ increased laccase activity (up to 12-fold with respect to control cultures) and T. versicolor in presence of all metals produced the two isoenzymes in different proportion with ratios of activity (LacI/LacII) varying between 0.11 and 0.51. This factor played an important role in the decolourisation of the textile dye Indigo Carmine.     

Removal of emerging contaminants from wastewater using advanced treatments. A review

Environmental Chemistry Letters - The rise of emerging contaminants in waters challenges the scientific community and water treatment stakeholders to design remediation techniques that are simple,...