Degradation of a xenobiotic textile dye, Disperse Brown 118, by Brevibacillus laterosporus |
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Authors: | Mayur B Kurade Tatoba R Waghmode Akhil N Kabra Sanjay P Govindwar |
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Institution: | 1. Department of Biotechnology, Shivaji University, Kolhapur, India 2. Department of Biochemistry, Shivaji University, Kolhapur, 416004, India 3. Division of Applied Life Science, Gyeongsang National University, Jinju, Korea
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Abstract: | The toxic textile dye, Disperse Brown 118, was degraded by Brevibacillus laterosporus. 96 % decolorization was achieved within 48 h at pH 7, 40 °C at 50 mg dye l?1 accompanied by significant increases in the activities of veratryl alcohol oxidase, tyrosinase and NADH-DCIP reductase. HPTLC and FT-IR spectroscopy confirmed biodegradation after dye decolorization. As identified by GC–MS, biodegradation products of Disperse Brown 118 were N-carbamoyl-2-(8-chloroquinazolin-4-yl)oxy] acetamide and N-carbamoyl-2-(quinazolin-4-yloxy)acetamide which were much less toxic than parent dye as evidenced by phytotoxicity tests. |
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