Efficient industrial dye decolorization by Bacillus sp. VUS with its enzyme system.

Ecotoxicology and Environmental Safety
Vishal V DawkarSanjay P Govindwar

Abstract

This work presents role of different enzymes in decolorization of industrial dye Orange T4LL by Bacillus sp. VUS. Bacillus sp. strain VUS decolorized dye Orange T4LL, under static anoxic condition in 24 h. During decolorization of Orange T4LL a significant induction in the activities of lignin peroxidase, tyrosinase, and reductases (NADH-DCIP, azo, and riboflavin) was observed. The biodegradation was monitored by Ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy, and high performance liquid chromatography. The final products 4-methyl-2-o-tolylazo-benzene-1,3-diamine and [3-(phenyl-hydrazono)-cyclohexa-1,4-dienyl]-methanol were characterized by gas chromatography-mass spectroscopy. Phytotoxicity, COD, and BOD revealed non-toxicity of degraded products. Phytotoxicity study demonstrated non-toxicity of the biodegraded products for crop plants with respect to Triticum aestivum and Sorghum bicolor. Bacillus sp. VUS with its enzyme system could be a useful tool for textile effluent treatment.

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Citations

Feb 11, 2015·Critical Reviews in Biotechnology·Shahid MahmoodDavid E Crowley
Jan 17, 2013·Journal of Bioscience and Bioengineering·Rijuta G SarataleGanesh D Saratale
Jun 16, 2015·Ecotoxicology and Environmental Safety·Muhammad ImranMuhammad Arshad
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Nov 10, 2020·Frontiers in Bioengineering and Biotechnology·Pankaj Kumar Arora
Feb 18, 2020·Ecotoxicology and Environmental Safety·Xuemin WeiJianping Han

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