title: Degradation of a xenobiotic textile dye, Disperse Brown 118, by Brevibacillus laterosporus.
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.
authors.affiliation: Department of Biotechnology, Shivaji University, Kolhapur, India.
authors.forename: Mayur B
authors.initials: MB
authors.lastname: Kurade
authors.forename: Tatoba R
authors.initials: TR
authors.lastname: Waghmode
authors.forename: Akhil N
authors.initials: AN
authors.lastname: Kabra
authors.forename: Sanjay P
authors.initials: SP
authors.lastname: Govindwar
mesh_terms: D000429:Alcohol Oxidoreductases / Q000378:metabolism; D001391:Azo Compounds / Q000378:metabolism*; D001711:Biotransformation; D058675:Brevibacillus / Q000378:metabolism*; D002855:Chromatography, Thin Layer; D008401:Gas Chromatography-Mass Spectrometry; D006863:Hydrogen-Ion Concentration; D014442:Monophenol Monooxygenase / Q000378:metabolism; D011808:Quinone Reductases / Q000378:metabolism; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature; D013997:Time Factors; D015262:Xenobiotics / Q000378:metabolism*
chemical_list: D001391:Azo Compounds; D015262:Xenobiotics; C095594:disperse red 118; D000429:Alcohol Oxidoreductases; C057990:veratryl alcohol oxidase; D014442:Monophenol Monooxygenase; D011808:Quinone Reductases; C033633:dichlorophenolindophenol reductase