Bioenergetics and pathway of acid blue 113 degradation by<i>Staphylococcus lentus</i>

Sekar, Sudharshan; Surianarayanan, M.; Shanmugam, Bhuvanesh Kumar; Mandal, Asit Baran

doi:10.1002/btpr.1626

Cited by 19 publications

(16 citation statements)

References 37 publications

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“…Mohammed et al [33] identified 4-diazenyl-1-naphthylamine, 1-naphthyldiazene or 5-diazenyl-1-naphthol as intermediates during the degradation of AB113, which are subsequently mineralized. The intermediate products of the degradation of AB113 are less recalcitrant and are eventually converted to CO 2 and H 2 O [34]. Despite these reported studies, the use of quantum chemical calculation to predict the degradation potential of AB113 by different oxidant has not been presented.…”

Section: Introductionmentioning

confidence: 99%

Predicting the degradation potential of Acid blue 113 by different oxidants using quantum chemical analysis

Asghar

Bello

Raman

et al. 2019

Heliyon

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In this work, quantum chemical analysis was used to predict the degradation potential of a recalcitrant dye, Acid blue 113, by hydrogen peroxide, ozone, hydroxyl radical and sulfate radical. Geometry optimization and frequency calculations were performed at ‘Hartree Fock’, ‘Becke, 3-parameter, Lee–Yang–Parr’ and ‘Modified Perdew-Wang exchange combined with PW91 correlation’ levels of study using 6-31G* and 6-31G** basis sets. The Fourier Transform-Raman spectra of Acid blue 113 were recorded and a complete analysis on vibrational assignment and fundamental modes of model compound was performed. Natural bond orbital analysis revealed that Acid blue 113 has a highly stable structure due to strong intermolecular and intra-molecular interactions. Mulliken charge distribution and molecular electrostatic potential map of the dye also showed a strong influence of functional groups on the neighboring atoms. Subsequently, the reactivity of the dye towards the oxidants was compared based on the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy values. The results showed that Acid blue 113 with a HOMO value -5.227 eV exhibits a nucleophilic characteristic, with a high propensity to be degraded by ozone and hydroxyl radical due to their lower HOMO-LUMO energy gaps of 4.99 and 4.22 eV respectively. On the other hand, sulfate radical and hydrogen peroxide exhibit higher HOMO-LUMO energy gaps of 7.92 eV and 8.10 eV respectively, indicating their lower reactivity towards Acid blue 113. We conclude that oxidation processes based on hydroxyl radical and ozone would offer a more viable option for the degradation of Acid blue 113. This study shows that quantum chemical analysis can assist in selecting appropriate advanced oxidation processes for the treatment of textile effluent.

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Section: Introductionmentioning

confidence: 99%

Predicting the degradation potential of Acid blue 113 by different oxidants using quantum chemical analysis

Asghar

Bello

Raman

et al. 2019

Heliyon

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“…This differences could be attributed to the capability of BioRC1e to handle variables such as agitation (baffles), aeration and precise temperature control. In one of the earlier studies, the differences in mechanism of degradation as a result of shake flask and reactor environment was highlighted (Sekar et al, 2012). The present study emphasises the need for the precise control of bioreactor variables for successful biodegradation process.…”

Section: Carbon Dioxide Evolution Studiesmentioning

confidence: 87%

Metabolism and biotransformation of azo dye by bacterial consortium studied in a bioreaction calorimeter

Shanmugam

Surianarayanan

2015

Bioresource Technology

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“…Shigella boydii could remove 100 mg/L of AB-113 with 96% efficiency within 76 h, and when the concentration increased to 500 mg/L, the efficiency decreased to 89% (Senthilvelan et al 2014). Also, Staphylococcus lentus decolorized 25, 50, 75, 100, and 500 mg/L of AB-113 with 92, 79, 62, 60, and 35% efficiencies within 70 h, respectively (Sekar et al 2012). As compared with other studies, microorganisms were not able to remove high concentrations of AB-113 at the same time intervals as the present study, which reveals the high potential of Klebsiella sp.…”

Section: Effect Of Initial Dye Concentrationsmentioning

confidence: 98%

Simultaneous decolorization/degradation of AB-113 and chromium(VI) removal by a salt-tolerant Klebsiella sp. AB-PR and detoxification of biotransformed-metabolites

Emadi

Sadeghi

Forouzandeh

et al. 2021

Int. J. Environ. Sci. Technol.

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Textile wastewater contains dyes, heavy metals, and salts. In this study, a salt-tolerant decolorizing strain was isolated from vermicompost and identified as Klebsiella sp. strain AB-PR by 16S ribosomal RNA gene analysis. Klebsiella sp. strain AB-PR was presented to simultaneously remove high concentrations of diazo dye and hexavalent chromium under saline conditions for the first time. Maximum decolorization of 95.50% was observed for 800 mg/L of Acid Blue-113 at pH 7 and temperature 35 °C with 5% inoculum size under static conditions. Also, decolorization efficiencies for 13 and 8 g/L of glucose and yeast extract as optimum carbon and nitrogen sources were 94.52 and 94.70%, respectively. Klebsiella sp. strain AB-PR could tolerate 50 g/L of NaCl and decolorize 94.18% of Acid Blue-113. The maximum decolorization and removal efficiencies for 800 mg/L of Acid Blue-113 and 30 mg/L of hexavalent chromium with 50 g/L of NaCl were 90.98 and 89.42%, respectively. Gas chromatography-mass spectrometry and Fourier transform-infrared spectroscopy studies showed that Acid Blue-113 was cleaved to the aromatic amines metabolites with lower molecular weight. The phyto-toxicity study exhibited that Acid Blue-113 was not toxic for Triticum aestivum and Maize. But after biological treatment, the toxicity was increased, and the seeds could not germinate. Therefore, ultraviolet-C/H 2 O 2 was applied for the detoxification of biotransformed metabolites. After application of ultraviolet-C/H 2 O 2 , toxic aromatic metabolites were converted to nontoxic and linear organic products, and the seeds were germinated completely. Thus, the combined application of biological-chemical treatment is effective in the detoxification of textile wastewater. KeywordsAzo dye acid blue-113 • Bio-decolorization • Detoxification by UV-C/H 2 O 2 • Hexavalent chromium • Integrated treatment • Saline condition * M. Sadeghi

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Bioenergetics and pathway of acid blue 113 degradation byStaphylococcus lentus

Cited by 19 publications

References 37 publications

Predicting the degradation potential of Acid blue 113 by different oxidants using quantum chemical analysis

Predicting the degradation potential of Acid blue 113 by different oxidants using quantum chemical analysis

Metabolism and biotransformation of azo dye by bacterial consortium studied in a bioreaction calorimeter

Simultaneous decolorization/degradation of AB-113 and chromium(VI) removal by a salt-tolerant Klebsiella sp. AB-PR and detoxification of biotransformed-metabolites

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