Versatility of oxidoreductases in the remediation of environmental pollutants
Tukayi Kudanga1, Stephanie Burton1, Gibson S. Nyanhongo2, Georg M. Guebitz2
1
Biocatalysis and Technical Biology Research group, Cape Peninsula University of Technology, Bellville Campus, Symphony Way, PO Box 1906, Bellville, 7535, Cape Town, South Africa, 2Graz University of Technology, Institute of Environmental Biotechnology, Petersgasse 12/1, A-8010, Graz, Austria
TABLE OF CONTENTS
- 1. Abstract
- 2. Introduction
- 3. Brief review of oxidative enzymes and reaction mechanisms
- 3.1. Laccase (benzenediol:oxygen oxidoreductase, EC 1.10.3.2)
- 3.2. Tyrosinase (Tyros; E.C. 1.14.18.1, monophenol monoxygenase)
- 3.3. Lignin peroxidase (LiP; EC: 1.11.1.14)
- 3.4. Manganese peroxidase (MnP; EC 1.11.1.13
- 3.5. Coprinopsis cinerea peroxidase (CiP; EC 1.11.1.7)
- 3.6. Versatile peroxidase (VP; EC 1.11.1.16)
- 3.7. Heme-thiolate peroxidases
- 3.8. Dye-decolorizing peroxidases (/DyP; EC 1.11.1.X)
- 3.9. Secreted plant peroxidases (horseradish peroxidase (HRP, EC 1.11.1.7) and soybean peroxidase (SBP, EC 1.11.1.7)).
- 4. Applications of oxidoreductases for environmental purposes
- 4.1 .Soil remediation
- 4.2 .Waste water treatment
- 4.3. Decoloration of dyes
- 4.3.1. Peroxidases in dye decoloration/degradation
- 4.3.2. Laccases in dye decoloration/degradation
- 5. Perspective
- 6. Acknowledgements
- 7. References
1. ABSTRACT
Enzymatic transformation of recalcitrant and other pollutants is a promising eco-friendly alternative to physico-chemical methods in environmental remediation. This review summarizes some of the significant advances in applications of oxidative enzymes for treatment of xenobiotics. The review also discusses some of the underlying principles and enzyme reaction mechanisms in the detoxification or removal of xenobiotic compounds such as dyes, phenolic compounds, nitroaromatic compounds and polyaromatic hydrocarbons, as a way of remediating contaminated soils or wastewaters.
