Decolorization of Reactive Black 5 by a newly isolated bacterium Bacillus sp. YZU1
- 11 July 2012
- journal article
- Published by Elsevier BV in International Biodeterioration & Biodegradation
- Vol. 76, 41-48
- https://doi.org/10.1016/j.ibiod.2012.06.023
Abstract
A bacterial strain, YZU1, with remarkable ability to decolorize Reactive Black 5 (RB-5), was isolated from soil samples collected around a textile factory. Phenotypic and phylogenetic analyses of the 16S rDNA sequence indicated that YZU1 belonged to Bacillus sp. Bacillus sp. YZU1 showed great capability to decolorize various reactive textile dyes, including azo dye. Static conditions with pH 7.0 and 40 °C were considered to be optimum for decolorizing RB-5. Bacillus sp. YZU1 grew well in medium containing high concentration of dye (100 mg/l), resulting in approximately 95% decolorization in 120 h, and could tolerate up to 500 mg/1 of RB-5. Enzyme assays demonstrated that Bacillus sp. YZU1 possessed azoreductase and played the most important role in decolorization, while a small percentage of decolorization occurred via passive surface adsorption. High biodegradation extent under a mild condition suggested that Bacillus sp. YZU1 had great potential to be applied in dye effluent treatment.Keywords
This publication has 34 references indexed in Scilit:
- Decolorization of sulfonated azo dye Metanil Yellow by newly isolated bacterial strains: Bacillus sp. strain AK1 and Lysinibacillus sp. strain AK2Journal of Hazardous Materials, 2011
- Sequestration of Reactive Blue 4 by free and immobilized Bacillus subtilis cells and its extracellular polysaccharidesColloids and Surfaces B: Biointerfaces, 2010
- Selection of indicator bacteria based on screening of 16S rDNA metagenomic library from a two-stage anoxic–oxic bioreactor system degrading azo dyesBioresource Technology, 2010
- Removal of basic yellow dye from aqueous solution by sorption on green alga Caulerpa scalpelliformisJournal of Hazardous Materials, 2007
- Adsorption of Reactive Black 5 from an aqueous solution: equilibrium and kinetic studiesDesalination, 2006
- Decolorization of reactive dyes by mixed cultures isolated from textile effluent under anaerobic conditionsEnzyme and Microbial Technology, 2006
- Degradation of the textile dyes Basic yellow 28 and Reactive black 5 using diamond and metal alloys electrodesChemosphere, 2004
- Reactive dye bioaccumulation by Saccharomyces cerevisiaeProcess Biochemistry, 2003
- Decolorization of the textile dyes by newly isolated bacterial strainsJournal of Biotechnology, 2003
- Archaea in coastal marine environments.Proceedings of the National Academy of Sciences of the United States of America, 1992