| Laccase-mediator system in the decolorization of different types of recalcitrant dyes. | |
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MedLine Citation:
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PMID: 18830647 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Phloroglucinol, thymol, and violuric acid (VIO) were selected as laccase mediators after screening 14 different compounds with indigo carmine (indigoid dye) as a substrate. With the presence of these three mediators, a nearly complete decolorization (90-100%) was attained in 1 h. Thus, these three compounds were used as mediators for the decolorization of other four dyes. The results indicated that VIO was effective mediator in decolorization of Remazol brilliant blue R (RBBR, anthraquinoid dye) and Coomassie brilliant blue G-250 (CBB, triphenylmethane dyes), and Acid red (diazo dye). In presence of VIO, the four dyes described above attained 70% decolorization. Thymol was able to mediate decolorization of RBBR and Azure A (heterocyclic dye). Phloroglucinol has no mediating capability in decolorization of the four dyes analyzed. Mediator concentration, pH, and copper ion have an effect on the decolorization of the RBBR. Our data suggested that the decolorization capabilities of laccase/mediator system were related to the types of mediator, the dye structure and decolorization condition. |
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Authors:
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Mei Rong Hu; Ya Peng Chao; Guo Qing Zhang; Zhi Quan Xue; Shijun Qian |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't Date: 2008-09-23 |
Journal Detail:
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Title: Journal of industrial microbiology & biotechnology Volume: 36 ISSN: 1476-5535 ISO Abbreviation: J. Ind. Microbiol. Biotechnol. Publication Date: 2009 Jan |
Date Detail:
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Created Date: 2008-12-16 Completed Date: 2009-04-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9705544 Medline TA: J Ind Microbiol Biotechnol Country: England |
Other Details:
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Languages: eng Pagination: 45-51 Citation Subset: IM |
Affiliation:
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State Key Laboratory of Transducer Technology, Institute of Microbiology, Chinese Academy of Sciences, P. O. Box 2714, 100101, Beijing, People's Republic of China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anthraquinones
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chemistry,
metabolism Barbiturates / chemistry* Biodegradation, Environmental Coloring Agents / chemistry, metabolism* Fungal Proteins / metabolism* Laccase / chemistry, metabolism* Oxidation-Reduction Phloroglucinol / chemistry* Polyporaceae / enzymology Thymol / chemistry* Waste Disposal, Fluid / methods* |
| Chemical | |
Reg. No./Substance:
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0/Anthraquinones; 0/Barbiturates; 0/Coloring Agents; 0/Fungal Proteins; 108-73-6/Phloroglucinol; 2580-78-1/Remazol Brilliant Blue R; 87-39-8/violuric acid; 89-83-8/Thymol; EC 1.10.3.2/Laccase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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