title: Degradation of three aromatic dyes by white rot fungi and the production of ligninolytic enzymes.
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.
authors.affiliation: Department of Biology, University of Incheon, Incheon 402-749, Korea.
authors.forename: Chandana
authors.initials: C
authors.lastname: Jayasinghe
authors.forename: Ahmed
authors.initials: A
authors.lastname: Imtiaj
authors.forename: Geon Woo
authors.initials: GW
authors.lastname: Lee
authors.forename: Kyung Hoan
authors.initials: KH
authors.lastname: Im
authors.forename: Hyun
authors.initials: H
authors.lastname: Hur
authors.forename: Min Woong
authors.initials: MW
authors.lastname: Lee
authors.forename: Hee-Sun
authors.initials: HS
authors.lastname: Yang
authors.forename: Tae-Soo
authors.initials: TS
authors.lastname: Lee
keywords: Aromatic dyes; Decolorization; Ligninolytic enzymes; White rot fungi