Decolorization of Azo Dye by the White-Rot Basidiomycete Phanerochaete sordida and by Its Manganese Peroxidase
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概要
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We investigated the decolorization of an azo-reactive dye, Reactive Red 120, by a white-rot basidiomycete, Phanerochaete sordida strain YK-624. In liquid culture of P. sordida in a medium containing 3% malt extract and 200 mg/l of the dye, the dye was 90.6% decolorized after 7d. Manganese peroxidase (MnP) activity was detected during the decolorization process. The dye could be decolorized by purified MnP of P. sordida in the presence of Mn(II) and Tween 80. The involvement of lipid peroxidation during decolorization with MnP was considered. With shaking, the dye could be decolorized without the addition of hydrogen peroxide. The decolorization did not occur under anaerobic conditions, suggesting that dye decolorization by MnP is influenced by dissolved oxygen. Since catalase did not inhibit the decolorization with MnP, we inferred that the MnP catalytic cycle would be promoted by hydro peroxides formed from the decomposition of malonate or from lipid peroxidation.
- 社団法人日本生物工学会の論文
- 2003-05-25
著者
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Nakamura K
Department Of Biotechnology Graduate School Of Agricultural And Life Sciences The University Of Toky
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WATANABE Yoshio
Bioresource Laboratories, Mercian Corporation
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Nakamura Kazunori
Institute For Biological Resources And Functions National Institute Of Advanced Industrial Science A
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HARAZONO Koichi
Institute for Biological Resources and Functions, National Institute of Advanced Industrial, Science
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Watanabe Yoshio
Bioresource Laboratories Mercian Corporation
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Nakamura Kazunori
Department Of Biotechnology Graduate School Of Agricultural And Life Sciences The University Of Toky
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Harazono K
Institute For Biological Resources And Functions National Institute Of Advanced Industrial Science A
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Harazono Koichi
Institute For Biological Resources And Functions National Institute Of Advanced Industrial Science A
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Watanabe Yoshio
Bioresource Laboratories Mercian Co.
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