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Natural Mediators in the Oxidation of Polycyclic Aromatic Hydrocarbons by Laccase Mediator Systems
Open accessAbstract
The oxidation of polycyclic aromatic compounds was studied in systems consisting of laccase from Trametes versicolor and so-called mediator compounds. The enzymatic oxidation of acenaphthene, acenaphthylene, anthracene, and fluorene was mediated by various laccase substrates (phenols and aromatic amines) or compounds produced and secreted by white rot fungi. The best natural mediators, such as phenol, aniline, 4-hydroxybenzoic acid, and 4-hydroxybenzyl alcohol were as efficient as the previously described synthetic compounds ABTS [2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid)] and 1-hydroxybenzotriazole. The oxidation efficiency increased proportionally with the redox potentials of the phenolic mediators up to a maximum value of 0.9 V and decreased thereafter with redox potentials exceeding this value. Natural compounds such as methionine, cysteine, and reduced glutathione, containing sulfhydryl groups, were also active as mediator compounds.
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Citations
Cited by
Decolorization and Detoxification of Textile Dyes with a Laccase from Trametes hirsuta
Abadulla, E., Tzanov, T., Costa, S., Robra, K.-H., Cavaco-Paulo, A., & Gübitz, G. M. (2000) · Applied and Environmental Microbiology · doi:10.1128/aem.66.8.3357-3362.2000 · Cited by 581
Husain, Q. (2006) · Critical Reviews in Biotechnology · doi:10.1080/07388550600969936 · Cited by 429
Bioprospecting and biotechnological applications of fungal laccase
Upadhyay, P., Shrivastava, R., & Agrawal, P. K. (2016) · 3 Biotech · doi:10.1007/s13205-015-0316-3 · Cited by 242
Indigo Degradation with Purified Laccases from Trametes hirsuta and Sclerotium rolfsii
Campos, R., Kandelbauer, A., Robra, K. H., Cavaco-Paulo, A., & Gübitz, G. M. (2001) · Journal of Biotechnology · doi:10.1016/s0168-1656(01)00303-0 · Cited by 216
Aptitude of Oxidative Enzymes for Treatment of Wastewater Pollutants: A Laccase Perspective
Unuofin, J. O., Okoh, A. I., & Nwodo, U. U. (2019) · Molecules · doi:10.3390/molecules24112064 · Cited by 172
Metadata
- Authors
- Johannes, C., & Majcherczyk, A.
- Venue
- Applied and Environmental Microbiology
- Publisher
- American Society for Microbiology
- Published
- 2000-02
- Volume
- 66
- Issue
- 2
- Pages
- 524-528
- ISSN
- 0099-2240 (ISSN-L)
- 1098-5336
- OpenAlex
- W2121661766
- Cited by
- 481
- References
- 0
- FWCI
- 26.70
- Type
- journal article
- Language
- en
- Open access
- green
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- Johannes, C., & Majcherczyk, A. (2000). Natural Mediators in the Oxidation of Polycyclic Aromatic Hydrocarbons by Laccase Mediator Systems. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.66.2.524-528.2000
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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