Effect of inducers on the decolorization and biodegradation of textile azo dye Navy blue 2GL by Bacillus sp. VUS

Dawkar, Vishal V.; Jadhav, Umesh; Ghodake, Gajanan S.; Govindwar, Sanjay P.

doi:10.1007/s10532-009-9266-y

Cited by 95 publications

(26 citation statements)

References 29 publications

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“…It is well known that bacteria degrade azo dyes reductively under anaerobic conditions to colorless aromatic amines. The carcinogenicity of an azo dye may be due to the dye itself or aryl amine derivatives produced during the reductive biotransformation of an azo linkage (Dawkar et al 2009). These colorless aromatic amines should be degraded further because these may be toxic, mutagenic, and carcinogenic to humans and animals (Chen 2006).…”

Section: Biodegradation Of Dyes By Bacteriamentioning

confidence: 99%

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Biodegradation of Synthetic Dyes—A Review

Ali

2010

Water Air Soil Pollut

640

253

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The contamination of soils and waters by dye-containing effluents is of environmental concern. Due to the increasing awareness and concern of the global community over the discharge of synthetic dyes into the environment and their persistence there, much attention has been focused on the remediation of these pollutants. Among the current pollution control technologies, biodegradation of synthetic dyes by different microbes is emerging as an effective and promising approach. The bioremediation potentials of many microbes for synthetic dyes have been demonstrated and those of others to be explored in future. The biodegradation of synthetic dyes is an economic, effective, biofriendly, and environmentally benign process. Bioremediation of xenobiotics including synthetic dyes by different microbes will hopefully prove a green solution to the problem of environmental soil and water pollution in future. This review paper discusses comprehensively the science and arts of biodegradation of synthetic dyes.

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Section: Biodegradation Of Dyes By Bacteriamentioning

confidence: 99%

“…They concluded that the degradation product was less toxic. Dawkar et al (2009) carried out phytotoxicity analysis of textile azo dye Navy blue 2GL and its metabolites formed after degradation by Bacillus sp. VUS.…”

Section: Phytotoxicity and Microbial Toxicity Of Dyes And Their Biodementioning

confidence: 99%

Biodegradation of Synthetic Dyes—A Review

Ali

2010

Water Air Soil Pollut

640

253

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“…Considering the time and decolorization efficiency, 24 h of treatment time is suitable for spore laccase in dye decolorization ( Figure 5d). Some Bacillus species cultures can also degrade synthetic dyes with high efficiency, but usually need a longer time than spore laccase (Dawkar et al, 2009;Kadam et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

PREPARATION AND CHARACTERIZATION OF IMMOBILIZED SPORES WITH LACCASE ACTIVITY FROM Bacillus pumilus W3 ON DEAE-CELLULOSE AND THEIR APPLICATION IN DYE DECOLORIZATION

Zhou

Zhang

Cai

et al. 2017

Braz. J. Chem. Eng.

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-In order to obtain a more stable and reusable immobilized spore laccase for dye decolorization, the spores from Bacillus pumilus W3 were immobilized on diethylaminoethyl cellulose (DEAE-cellulose). Free and immobilized spore laccase retained 34.38% and 46.11% of their initial activity, respectively, after 10 days incubation at pH 9.0. Their residual activity remained at 27.36% and 31.84% after 10 h incubation at 70 °C. Immobilized spore laccase was more stable than free spore laccase in the presence of most organic solvents, metal ions and inhibitors. The tested dyes, including methyl green, methyl red and acid red 1, were removed 86.82%, 78.14% and 88.60%, respectively, by immobilized spore laccase after 24 h at 37 °C, and 74.34% of initial decolorization activity after 7 cycles was retained when it decolorized acid red 1. These properties indicated that immobilized spore laccase may be useful in textile effluent treatment.

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“…In addition, several synergistic interactions of oxidoreductase-related enzymes such as laccase (EC 1.10.3.2; Dawkar et al 2009), azoreductase (EC 1.7.1.6; Maier et al 2004), and NADH dehydrogenase (EC 1.6.5.3; Ng et al 2013) or cytochrome C oxidase (Wariishi et al 2002) were involved simultaneously. These enzymes all play crucial roles in dealing with decolorization of azo dyes, suggesting that decolorization seemed not simply to be driven solely by mono enzymatic catalysis or single metabolic route.…”

Section: Genomic and Enzymes Studies Of Proteusmentioning

confidence: 99%

Electron transport phenomena of electroactive bacteria in microbial fuel cells: a review of Proteus hauseri

Hsueh

Chen

2017

Bioresour. Bioprocess.

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This review tended to decipher the expression of electron transfer capability (e.g., biofilm formation, electron shuttles, swarming motility, dye decolorization, bioelectricity generation) to microbial fuel cells (MFCs). As mixed culture were known to perform better than pure microbial cultures for optimal expression of electrochemically stable activities to pollutant degradation and bioenergy recycling, Proteus hauseri isolated as a "keystone species" to maintain such ecologically stable potential for power generation in MFCs was characterized. P. hauseri expressed outstanding performance of electron transfer (ET)-associated characteristics [e.g., reductive decolorization (RD) and bioelectricity generation (BG)] for electrochemically steered bioremediation even though it is not a nanowire-generating bacterium. This review tended to uncover taxonomic classification, genetic or genomic characteristics, enzymatic functions, and bioelectricity-generating capabilities of Proteus spp. with perspectives for electrochemical practicability. As a matter of fact, using MFCs as a tool to evaluate ET capabilities, dye decolorizer(s) could clearly express excellent performance of simultaneous bioelectricity generation and reductive decolorization (SBG and RD) due to feedback catalysis of residual decolorized metabolites (DMs) as electron shuttles (ESs). Moreover, the presence of reduced intermediates of nitroaromatics or DMs as ESs could synergistically augment efficiency of reductive decolorization and power generation. With swarming mobility, P. hauseri could own significant biofilm-forming capability to sustain ecologically stable consortia for RD and BG. This mini-review evidently provided lost episodes of great significance about bioenergysteered applications in myriads of fields (e.g., biodegradation, biorefinery, and electro-fermentation). Keywords

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Effect of inducers on the decolorization and biodegradation of textile azo dye Navy blue 2GL by Bacillus sp. VUS

Cited by 95 publications

References 29 publications

Biodegradation of Synthetic Dyes—A Review

Biodegradation of Synthetic Dyes—A Review

PREPARATION AND CHARACTERIZATION OF IMMOBILIZED SPORES WITH LACCASE ACTIVITY FROM Bacillus pumilus W3 ON DEAE-CELLULOSE AND THEIR APPLICATION IN DYE DECOLORIZATION

Electron transport phenomena of electroactive bacteria in microbial fuel cells: a review of Proteus hauseri

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