» Articles » PMID: 26887225

Decolorization of Azo Dyes (Direct Blue 151 and Direct Red 31) by Moderately Alkaliphilic Bacterial Consortium

Overview
Specialty Microbiology
Date 2016 Feb 19
PMID 26887225
Citations 22
Authors
Affiliations
Soon will be listed here.
Abstract

Removal of synthetic dyes is one of the main challenges before releasing the wastes discharged by textile industries. Biodegradation of azo dyes by alkaliphilic bacterial consortium is one of the environmental-friendly methods used for the removal of dyes from textile effluents. Hence, this study presents isolation of a bacterial consortium from soil samples of saline environment and its use for the decolorization of azo dyes, Direct Blue 151 (DB 151) and Direct Red 31 (DR 31). The decolorization of azo dyes was studied at various concentrations (100-300mg/L). The bacterial consortium, when subjected to an application of 200mg/L of the dyes, decolorized DB 151 and DR 31 by 97.57% and 95.25% respectively, within 5 days. The growth of the bacterial consortium was optimized with pH, temperature, and carbon and nitrogen sources; and decolorization of azo dyes was analyzed. In this study, the decolorization efficiency of mixed dyes was improved with yeast extract and sucrose, which were used as nitrogen and carbon sources, respectively. Such an alkaliphilic bacterial consortium can be used in the removal of azo dyes from contaminated saline environment.

Citing Articles

Single and combined treatment processes for rhodamine B removal by coagulation-flocculation and adsorption.

Chebbi M, Youcef S, Youcef L, Soudani A, Dridi C, Sahli A RSC Adv. 2024; 14(51):37833-37845.

PMID: 39601002 PMC: 11591516. DOI: 10.1039/d4ra06882c.


Potential of halophiles and alkaliphiles in bioremediation of azo dyes-laden textile wastewater: a review.

Wadhawan G, Kalra A, Gupta A 3 Biotech. 2024; 14(9):194.

PMID: 39131176 PMC: 11306850. DOI: 10.1007/s13205-024-04036-0.


Associating Physical and Photocatalytic Properties of Recyclable and Reusable Blast Furnace Dust Waste.

Chaves N, Lima L, Monteiro M, Sobrinho R, Ferreira N, Ramos G Materials (Basel). 2024; 17(4).

PMID: 38399069 PMC: 10889973. DOI: 10.3390/ma17040818.


The Fashion Industry Needs Microbiology: Opportunities and Challenges.

Pedroso-Roussado C mSphere. 2023; 8(2):e0068122.

PMID: 36744949 PMC: 10117041. DOI: 10.1128/msphere.00681-22.


Toxicity Mitigation of Textile Dye Reactive Blue 4 by Hairy Roots of and Testing Its Effect in Model Systems.

Tungare K, Shahu R, Zambare V, Agarwal P, Jobby R, Nisar N Biomed Res Int. 2022; 2022:1958939.

PMID: 35924274 PMC: 9343192. DOI: 10.1155/2022/1958939.


References
1.
Kimura M . A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. J Mol Evol. 1980; 16(2):111-20. DOI: 10.1007/BF01731581. View

2.
Saitou N, Nei M . The neighbor-joining method: a new method for reconstructing phylogenetic trees. Mol Biol Evol. 1987; 4(4):406-25. DOI: 10.1093/oxfordjournals.molbev.a040454. View

3.
Olukanni O, Osuntoki A, Awotula A, Kalyani D, Gbenle G, Govindwar S . Decolorization of dyehouse effluent and biodegradation of Congo red by Bacillus thuringiensis RUN1. J Microbiol Biotechnol. 2013; 23(6):843-9. DOI: 10.4014/jmb.1211.11077. View

4.
Robinson T, McMullan G, Marchant R, Nigam P . Remediation of dyes in textile effluent: a critical review on current treatment technologies with a proposed alternative. Bioresour Technol. 2001; 77(3):247-55. DOI: 10.1016/s0960-8524(00)00080-8. View

5.
Rafii F, Franklin W, Cerniglia C . Azoreductase activity of anaerobic bacteria isolated from human intestinal microflora. Appl Environ Microbiol. 1990; 56(7):2146-51. PMC: 184574. DOI: 10.1128/aem.56.7.2146-2151.1990. View