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Title: Biodegradation of anthraquinone dyes by Shewanella sp. NTOU1 under anaerobic conditions
Authors: Wei-Chiung Chi;Chih-Hung Chen;Shiu-Mei Liu
Contributors: NTOU:Institute of Marine Biology
Keywords: decolorization pathways;disperse blue 3;disperse red 15;mordant red 11;reactive blue 4;reactive blue 19
Date: 2009
Issue Date: 2011-10-21T03:04:58Z
Publisher: Water Science and Technology
Abstract: Abstract:Shewanella sp. NTOU1 was able to decolorize a range of anthraquinone dyes [Reactive Blue 4 (RB4), Reactive Blue 19 (RB19), Mordant Red 11 (MR11), Disperse Red 15 (DR15), and Disperse Blue 3 (DB3)] under anaerobic conditions. By supplementing the medium with formate and ferric citrate as the electron donor and acceptor, respectively and cultivating it under the optimum pH (8–9) and temperature (45°C), this strain could decolorize these dyes (1,000 mg/L) at the initial color removal rates of 15–126 mg/L/h and the rates among them were RB19 > RB4 > DB3 > DR15 > MR11. The extent of color removal was in the range of 90–98% for RB19, 86–96% for RB4, 39–41% for MR11, 69–82% for DR15, and 89–91% for DB3. Based on the decolorization products detected by means of GC/MS analyses, probable pathways for the decolorization of these dyes by this strain were proposed.
Relation: 60(4), pp.889-899
URI: http://ntour.ntou.edu.tw/handle/987654321/29235
Appears in Collections:[海洋生物研究所] 期刊論文

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