Mycobiology.  2008 Jun;36(2):114-120.

Degradation of Three Aromatic Dyes by White Rot Fungi and the Production of Ligninolytic Enzymes

Affiliations
  • 1Department of Biology, University of Incheon, Incheon 402-749, Korea. tslee@incheon.ac.kr
  • 2Department of Biology, Dongguk University, Seoul 100-715, Korea.
  • 3Chemichal Safety and Accident Prevention Division, National Institute of Environmental Research, Incheon 404-708, Korea.

Abstract

This study was conducted to evaluate the degradation of aromatic dyes and the production of ligninolytic enzymes by 10 white rot fungi. The results of this study revealed that Pycnoporus cinnabarinus, Pleurotus pulmonarius, Ganoderma lucidum, Trametes suaveolens, Stereum ostrea and Fomes fomentarius have the ability to efficiently degrade congo red on solid media. However, malachite green inhibited the mycelial growth of these organisms. Therefore, they did not effectively decolorize malachite green on solid media. However, P. cinnabarinus and P. pulmonarius were able to effectively decolorize malachite green on solid media. T. suaveolens and F. rosea decolorized methylene blue more effectively than any of the other fungi evaluated in this study. In liquid culture, G. lucidum, P. cinnabarinus, Naematoloma fasciculare and Pycnoporus coccineus were found to have a greater ability to decolorize congo red. In addition, P. cinnabarinus, G. lucidum and T. suaveolens decolorized methylene blue in liquid media more effectively than any of the other organisms evaluated in this study. Only F. fomentarius was able to decolorize malachite green in liquid media, and its ability to do so was limited. To investigate the production of ligninolytic enzymes in media containing aromatic compounds, fungi were cultured in naphthalene supplemented liquid media. P. coccineus, Coriolus versicolor and P. cinnabarinus were found to produce a large amount of laccase when grown in medium that contained napthalene.

Keyword

Aromatic dyes; Decolorization; Ligninolytic enzymes; White rot fungi

MeSH Terms

Coloring Agents
Congo Red
Coriolaceae
Fungi
Humans
Laccase
Methylene Blue
Naphthalenes
Ostrea
Pleurotus
Pycnoporus
Reishi
Rosaniline Dyes
Trametes
Coloring Agents
Congo Red
Laccase
Methylene Blue
Naphthalenes
Rosaniline Dyes
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