By a News Reporter-Staff News Editor at Journal of Technology -- Research findings on Hazardous Materials are discussed in a new report. According to news reporting originating from Vellore, India, by VerticalNews correspondents, research stated, "The ability of halophiles to survive in the extreme salt concentrations has gained them the importance of being used in the treatment of industrial waste waters. A moderately halophilic bacterial strain with the ability to degrade the complex azo dye Direct Blue-1 (DB-1) was isolated from sea water and identified as Marinobacter sp. strain HBRA."
Our news editors obtained a quote from the research from VIT University, "Complete decolorization of DB-1 (100 mg L(-1)) was achieved in 6h at 37 °C, pH 8 and with 70 g L(-1) NaCl. Decolorization was analyzed by UV-vis spectrophotometer. The FT-IR spectrum revealed that Marinobacter sp. strain HBRA specifically targeted azo bond (NN) at 1631 cm(-1) to break down Direct Blue-1. Formation of metabolites at different retention times in HPLC indicated degradation. Biotransformation pathway for DB-1 was proposed based on LC-MS. Phytotoxicity study revealed the less toxic nature of the metabolites compared to the dye. Genotoxicity with Allium cepa confirmed the cytotoxic nature of DB-1 by inducing several chromosomal abnormalities compared to the negligible effects of degraded metabolites."
According to the news editors, the research concluded: "The current study is the first report on the detoxification of DB-1 by Marinobacter sp."
For more information on this research see: Biotransformation of Direct Blue 1 by a moderately halophilic bacterium Marinobacter sp. strain HBRA and toxicity assessment of degraded metabolites. Journal of Hazardous Materials, 2013;262():674-84. (Elsevier - www.elsevier.com; Journal of Hazardous Materials - www.elsevier.com/wps/product/cws_home/502691)
The news editors report that additional information may be obtained by contacting A.S. Arun Prasad, Division of Environmental Biotechnology, School of Biosciences and Technology, VIT University, Vellore, India. Additional authors for this research include V.S. Satyanarayana and K.V Bhaskara Rao.
Keywords for this news article include: Asia, India, Vellore, Hazardous Materials.
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