Journal article
Ecofriendly biodegradation and detoxification of Reactive Red 2 textile dye by newly isolated Pseudomonas sp. SUK1
The aim of this work is to evaluate textile dyes degradation by novel bacterial strain isolated from the waste disposal sites of local textile industries. Detailed taxonomic studies identified the organisms as Pseudomonas species and designated as strain Pseudomonas sp. SUK1. The isolate was able to decolorize sulfonated azo dye (Reactive Red 2) in a wide range (up to 5 g l(-1)), at temperature 30 degrees C, and pH range 6.2-7.5 in static condition.
This isolate also showed decolorization of the media containing a mixture of dyes. Measurements of COD were done at regular intervals to have an idea of mineralization, showing 52% reduction in the COD within 24h. Induction in the activity of lignin peroxidase and azoreductase was observed during decolorization of Reactive Red 2 in the batch culture, which represented their role in degradation.
The biodegradation was monitored by UV-vis, IR spectroscopy, HPLC. The final product, 2-naphthol was characterized by GC-mass spectroscopy. The phytotoxicity study revealed the degradation of Reactive Red 2 into non-toxic product by Pseudomonas sp. SUK1.
Language: | English |
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Year: | 2009 |
Pages: | 735-42 |
ISSN: | 18733336 and 03043894 |
Types: | Journal article |
DOI: | 10.1016/j.jhazmat.2008.07.020 |
Bacterial Proteins Biodegradation Biodegradation, Environmental Detoxification Industrial Waste Lignin peroxidase NADH, NADPH Oxidoreductases Naphthalenesulfonates Nitroreductases Peroxidases Pseudomonas Pseudomonas sp. SUK1 Textile Industry Textile dyes Transcriptional Activation Triazines azoreductase lignin peroxidase reactive red 2