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Enzyme degrades lignin: Trametes fungi


Trametes versicolor on tree / Jensbn / LicenseGFDL - Gnu Free Document License

Laccase enzymes of Trametes fungi catalyze the oxidation of organic and inorganic substrates including lignin through direct electron transfer.

"First of all, high-redox-potential laccases are able to oxidize both high- and low-redox-potential substrates, which significantly broadens the degradation ability of the fungi at the beginning of their growth. Secondly, for all high-redox-potential laccases, bioelectroreduction of oxygen on the carbon electrode based on direct electron transfer reactions between the electrode (solid substrate) and the enzymes has been shown, including the two laccases studied in the present work. Indeed, not only laccase, but also all ligninolytic enzymes from white rot fungi (lignin and manganese peroxidases, laccase, and cellobiose dehydrogenase) display the phenomenon of direct electron transfer." (Shleev et al. 2007:46)
About the inspiring organism
Med_800pxtrametes_versicolor_2 Fungi

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Organism/taxonomy data provided by:
Species 2000 & ITIS Catalogue of Life: 2008 Annual Checklist

Bioinspired products and application ideas

Application Ideas: Biofuel cells, biosensors, green biodegration of xenobiotics including pulp bleaching, labeling in immunoassays, bioremediation, green organic synthesis, fungicidal and bactericidal products.

Industrial Sector(s) interested in this strategy: Electronics, Energy, Waste Treatment, Agriculture, Bioremediation

Laboratory of Chemical Enzymology
A.I. Yaropolov
A.N. Bach Institute of Biochemistry
Shleev, S.; Nikitina, O.; Christenson, A.; Reimann, C. T.; Yaropolov, A. I.; Ruzgas, T.; Gorton, L. 2007. Characterization of two new multiforms of Trametes pubescens laccase. Bioorganic Chemistry. 35(1): 35-49.
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over 5 years ago
Really interesting strategy.
However the best idea it will be to emulate the lactase enzyme not only to produce a paper without toxic chemical, but to keep aside the lignin for a bio plastic prodution (there are several products already made with lignin instead of Corn plastics)
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