fulltext.study @t Gmail

Decolorization of synthetic dyes by laccase immobilized on epoxy-activated carriers

Paper ID Volume ID Publish Year Pages File Format Full-Text
35589 45097 2008 10 PDF Available
Title
Decolorization of synthetic dyes by laccase immobilized on epoxy-activated carriers
Abstract

The laccase from the ascomycete Myceliophthora thermophila was covalently immobilized on polymethacrylate-based polymers (Sepabeads EC-EP3 and Dilbeads NK) activated with epoxy groups. The enzyme immobilized on Sepabeads EC-EP3 exhibited notable activity (203 U/g) along with remarkably improved stability towards pH, temperature and storage time, but no increased resistance to organic solvents. In addition, the biocatalyst also showed good operational stability, maintaining 84% of its initial activity after 17 cycles of oxidation of ABTS. The immobilized laccase was applied to the decolorization of six synthetic dyes (Reactive Black 5, Acid Blue 25, Methyl Orange, Remazol Brilliant Blue B, Methyl Green and Acid Green 27) with or without the redox mediator 1-hydroxybenzotriazole. The laccase immobilized in Sepabeads EC-EP3 retained 41% activity in the decolorization of Methyl Green in a fixed-bed reactor after five cycles. The features of these biocatalysts are very attractive for their application on the decolorization of dyes in the textile industry in batch and continuous fixed-bed bioreactors.

Keywords
Covalent immobilization; Epoxy carriers; Acrylic polymers; Laccase; Decolorization; Synthetic dyes
First Page Preview
Decolorization of synthetic dyes by laccase immobilized on epoxy-activated carriers
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 43, Issue 2, February 2008, Pages 169–178
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us