Multiple Approaches Towards Decolorization and Reuse of a Textile Dye (VB-B) by a Marine Bacterium Shewanella decolorationis

Babu, S. Satheesh; Mohandass, Chellandi; Raj, Abhay; Rajasabapathy, Raju; Dhale, Mohan Appasaheb

doi:10.1007/s11270-013-1500-x

Cited by 18 publications

(15 citation statements)

References 30 publications

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“…The sample matrix was loaded in a 7-mm Pellet Die of 7-mm Disc Holder Mount and pressed in 2 T Mini-Pellet Press (Specac Ltd.). The sample mixture was then analyzed using the instrument by mounting the sample on the sample holder using the ring holder and the transmittance scanned from the range of 4,000–400 cm −1 with a resolution of 1 cm −1 set for 20 scans per min ( Babu et al, 2013 ). The obtained peaks were compared with the published reference dye peaks ( Sigma-Aldrich, n.d. ; Sun et al, 2013 ; Maity et al, 2015 ; Sahu and Patel, 2015 ; Asses et al, 2018 ).…”

Section: Methodsmentioning

confidence: 99%

“…Though this species shows potential in dye decolorization, no studies have been attempted to prove this claim. Hence, to address this knowledge gap, we studied bio-decolorization of three dyes belonging to different classes using the S. kushneri HTSP strain: (i) Coomassie brilliant blue (CBB) G-250, a triphenylmethane dye commonly used in the textile industry and molecular biology laboratories ( Rayaroth et al, 2015 ; Abbas et al, 2016 ); (ii) Safranin O, a quinone imine dye commonly used as a biological stain in the laboratories ( Drabik et al, 2010 ; Sabnis, 2010 ); and (iii) Congo red, an azo dye, a known carcinogen, widely used in the paper, textile and other industries ( Babu et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

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Bio-Decolorization of Synthetic Dyes by a Halophilic Bacterium Salinivibrio sp.

et al. 2020

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Synthetic dyes, extensively used in various industries, act as pollutants in the aquatic environment, and pose a significant threat to living beings. In the present study, we assessed the potential of a halophilic bacterium Salinivibrio kushneri HTSP isolated from a saltpan for decolorization and bioremediation of synthetic dyes. The genomic assessment of this strain revealed the presence of genes encoding the enzymes involved in decolorization mechanisms including FMN-dependent NADH azoreductase Clade III, which cleave the azo bond of the dye, and the enzymes involved in deamination and isomerization of intermediate compounds. The dye decolorization assay was performed using this bacterial strain on three water-soluble dyes in different concentrations: Coomassie brilliant blue (CBB) G-250 (500–3,000 mg/L), Safranin, and Congo red (50–800 mg/L). Within 48 h, more than 80% of decolorization was observed in all tested concentrations of CBB G-250 and Congo red dyes. The rate of decolorization was the highest for Congo red followed by CBB G-250 and then Safranin. Using UV-Visible spectrometer and Fourier Transform Infrared (FTIR) analysis, peaks were observed in the colored and decolorized solutions. The results indicated a breakdown of dyes upon decolorization, as some peaks were shifted and lost for different vibrations of aromatic rings, aliphatic groups (–CH2, –CH3) and functional groups (–NH, –SO3H, and –SO3−) in decolorized solutions. This study has shown the potential of S. kushneri HTSP to decolorize dyes in higher concentrations at a faster pace than previously reported bacterial strains. Thus, we propose that our isolated strain can be utilized as a potential dye decolorizer and biodegradative for wastewater treatment.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bio-Decolorization of Synthetic Dyes by a Halophilic Bacterium Salinivibrio sp.

et al. 2020

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“…under microaerophilic condition within 5 days 19 . The bio-decolourization of dye depends on the organism, its growth conditions and concentration of the dye 2,15 . The presence of specific nutrients in the culture medium can enhance the growth of bacteria 19,23 with a concomitant increase in decolourization 24 .…”

Section:  mentioning

confidence: 99%

“…The pellets were re-suspended in physiological saline and a cell density of 10 6 cells ml -1 was used as the inoculum. Decolourization studies were carried out following Babu et al 15 with modification. The bacterial suspension (100 ml l -1 ) was inoculated into Zobell marine broth containing the dye (50 mg l -1 ) and incubated for 2 days.…”

mentioning

confidence: 99%

Sponge-Associated Bacterium, <i>Yangia pacifica</i>:A Potential Candidate for Bioremediation of Azo Dyes

Subina¹,

Nair²,

Gonsalves³

2017

Current Science

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The bioremediation potential of bacteria associated with the sponge Cinachyrella cavernosa on azo dyes, Amido black and Congo red is reported. Twenty four percent of the bacteria decolourized these dyes at 50 mg l -1 concentration. The isolate, Yangia pacifica, which showed higher tolerance and decolourization potential, was subjected to detailed studies. The strain showed >70% decolourization on day 3 and >96% on day 7. Decolourization was dependent on growth, medium, pH, temperature and dye concentration. Although decolourization reduced the toxicity of both dyes, the mechanism leading to decolourization of the two dyes was different.

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“…The vast majority of the research on biological decolorization has been carried out on fungi and mainly on their ligninolytic enzymes, discovered to degrade azo dyes aerobically (Erkurt et al 2010). Conversely, studies on dye removal operated by bacteria are relatively less reported (Pokharia and Ahluwalia 2013;Satheesh Babu et al 2013;Pandey et al 2007), although the bacterial decolorization is normally faster than the fungal systems (Shobana and Thangam 2012). Several bacteria have been shown to degrade azo dyes (Saratale et al 2011), and it has been documented that decolorization occurs via bacterial azoreductases, followed by the aerobic mineralization of colorless amines (Pandey et al 2007; Van der Zee and Villaverde 2005).…”

Section: Introductionmentioning

confidence: 99%

Decolorization of acid and basic dyes: understanding the metabolic degradation and cell-induced adsorption/precipitation by Escherichia coli

Cerboneschi

Corsi

Bianchini

et al. 2015

Appl Microbiol Biotechnol

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Escherichia coli strain DH5α was successfully employed in the decolorization of commercial anthraquinone and azo dyes, belonging to the general classes of acid or basic dyes. The bacteria showed an aptitude to survive at different pH values on any dye solution tested, and a rapid decolorization was obtained under aerobic conditions for the whole collection of dyes. A deep investigation about the mode of action of E. coli was carried out to demonstrate that dye decolorization mainly occurred via three different pathways, specifically bacterial induced precipitation, cell wall adsorption, and metabolism, whose weight was correlated with the chemical nature of the dye. In the case of basic azo dyes, an unexpected fast decolorization was observed after just 2-h postinoculation under aerobic conditions, suggesting that metabolism was the main mechanism involved in basic azo dye degradation, as unequivocally demonstrated by mass spectrometric analysis. The reductive cleavage of the azo group by E. coli on basic azo dyes was also further demonstrated by the inhibition of decolorization occurring when glucose was added to the dye solution. Moreover, no residual toxicity was found in the E. coli-treated basic azo dye solutions by performing Daphnia magna acute toxicity assays. The results of the present study demonstrated that E. coli can be simply exploited for its natural metabolic pathways, without applying any recombinant technology. The high versatility and adaptability of this bacterium could encourage its involvement in industrial bioremediation of textile and leather dyeing wastewaters.

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Multiple Approaches Towards Decolorization and Reuse of a Textile Dye (VB-B) by a Marine Bacterium Shewanella decolorationis

Cited by 18 publications

References 30 publications

Bio-Decolorization of Synthetic Dyes by a Halophilic Bacterium Salinivibrio sp.

Bio-Decolorization of Synthetic Dyes by a Halophilic Bacterium Salinivibrio sp.

Sponge-Associated Bacterium, <i>Yangia pacifica</i>:A Potential Candidate for Bioremediation of Azo Dyes

Decolorization of acid and basic dyes: understanding the metabolic degradation and cell-induced adsorption/precipitation by Escherichia coli

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