International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 8, Issue:4, April, 2019

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(4): 1742-1754

Decolourization of Textile Azo Dye Direct Red 81 by Bacteria from Textile Industry Effluent
Sk. Md. Atiqur Rahman, Ananda Kumar Saha, Rokshana Ara Ruhi, Md. Fazlul Haque and Moni Krishno Mohanta*
Genetics and Molecular Biology Laboratory, Department of Zoology, University of Rajshahi, Rajshahi-6205, Bangladesh
*Corresponding author

Isolation and identification of the bacteria from textile effluent and evaluation of their ability to decolorize toxic sulfonated azo dye, Direct Red 81 were studied. A total of four bacterial strains were isolated from textile wastewater and their decolorizing activity was measured spectrophotometrically after incubation of the isolates for 24 h. in mineral salt medium modified with 100 ppm Direct Red 81 and supplemented with yeast extract. The bacterial strains were identified belonging to Raoultella planticola strain ALK314 (DR1), Klebsiella sp. SPC06 (DR2), Pseudomonas putida strain HOT19 (98.68%) (DR3) and Pseudomonas sp. strain 2016NX1 (DR4) respectively. Among the isolates Pseudomonas aeruginosa sp. strain ZJHG29 (DR4) was the most efficient bacteria to decolorize direct red 81 (100ppm) and showed 95% color removal efficiency at 36°C temperature in 24 hours. This study thus reveals that some bacteria inhabit in textile effluent whereby utilize the dyes as their source of energy and nutrition and imply their importance in the treatment of industrial effluents.

Keywords: Textile effluents, Azo dye, Decolorization, Bacteria

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How to cite this article:

Sk. Md. Atiqur Rahman, Ananda Kumar Saha, Rokshana Ara Ruhi, Md. Fazlul Haque and Moni Krishno Mohanta. 2019. Decolourization of Textile Azo Dye Direct Red 81 by Bacteria from Textile Industry Effluent.Int.J.Curr.Microbiol.App.Sci. 8(4): 1742-1754. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.