Laccases and their natural mediators: Biotechnological tools for sustainable eco-friendly processes

The textile sector is 14% of total industrial production in India and contributes to about 4% of the gross domestic product and earns about 27% of India's total foreign exchange. Worldwide, up to 1...

Biological methods for textile dye removal from wastewater: A review

Immobilized ligninolytic enzymes: An innovative and environmental responsive technology to tackle dye-based industrial pollutants - A review

Detoxification of azo dyes in the context of environmental processes.

https://digital.csic.es/bitstream/10261/174137/1/2015-BiotechAdv.pdf

Laccase engineering: From rational design to directed evolution

Microbial fuel cell powered by lipid extracted algae: A promising system for algal lipids and power generation

Laccase/mediator assisted degradation of triarylmethane dyes in a continuous membrane reactor.

Laccases have good potential as bioremediating agents and can be used continuously in the immobilized form like many other enzymes. In the present study, laccase from Cyathus bulleri was immobilized by entrapment in Poly Vinyl Alcohol (PVA) beads cross-linked with either nitrate or boric acid. Immobilized laccase was used for dye decolorization in both batch and continuous mode employing a packed bed column. The products of degradation of dye Acid Red 27 were identified by LC MS/MS analysis. The method led to very effective (90%) laccase immobilization and also imparted significant stability to the enzyme (more than 70% after 5 months of storage at 4°C). In batch decolorization, 90-95% decolorization was achieved of the simulated dye effluent for up to 10–20 cycles. Continuous decolorization in a packed bed bioreactor led to nearly 90% decolorization for up to 5 days. The immobilized laccase was also effective in decolorization and degradation of Acid Red 27 in the presence of a mediator. Four products of degradation were identified by LC-MS/MS analysis. The immobilized laccase in PVA-nitrate was concluded to be an effective agent in treatment of textile dye effluents.

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Immobilized laccase mediated dye decolorization and transformation pathway of azo dye acid red 27

Combination of chemical and enzymatic treatment for efficient decolorization/degradation of textile effluent: High operational stability of the continuous process

Microbial community modulates electrochemical performance and denitrification rate in a biocathodic autotrophic and heterotrophic denitrifying microbial fuel cell

Meenu Chhabra

Papers

Microbial fuel cell powered by lipid extracted algae: A promising system for algal lipids and power generation

Laccase/mediator assisted degradation of triarylmethane dyes in a continuous membrane reactor.

Immobilized laccase mediated dye decolorization and transformation pathway of azo dye acid red 27

Combination of chemical and enzymatic treatment for efficient decolorization/degradation of textile effluent: High operational stability of the continuous process

Microbial community modulates electrochemical performance and denitrification rate in a biocathodic autotrophic and heterotrophic denitrifying microbial fuel cell