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

Paper ID Volume ID Publish Year Pages File Format Full-Text
14416 1219 2010 12 PDF Available
Title
Laccases and their natural mediators: Biotechnological tools for sustainable eco-friendly processes
Abstract

Laccases are oxidoreductases which oxidize a variety of aromatic compounds using oxygen as the electron acceptor and producing water as by-product. The interest for these old enzymes (first described in 19th century) has progressively increased due to their outstanding biotechnological applicability. The presence of redox mediators is required for a number of biotechnological applications, providing the oxidation of complex substrates not oxidized by the enzyme alone. The efficiency of laccase–mediator systems to degrade recalcitrant compounds has been demonstrated, but still the high cost and possible toxicity of artificial mediators hamper their application at the industrial scale. Here, we present a general outlook of how alternative mediators can change this tendency. We focus on phenolic compounds related to lignin polymer that promotes the in vitro transformation of recalcitrant non-phenolic structures by laccase and are seemingly the natural mediators of laccases. The use of eco-friendly mediators easily available from lignocellulose, could contribute to the industrial implementation of laccases and the development of the 21th century biorefineries.

Keywords
Laccase; Natural mediators; Phenolic compounds; Oxidation mechanisms; Bioremediation; Lignin biodegradation; Lignocellulose biorefinery
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 28, Issue 6, November–December 2010, Pages 694–705
Authors
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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