Biodegradation of Azo Dye Methyl Red by Pseudomonas aeruginosa: Optimization of Process Conditions

International Journal of Environmental Research and Public Health, Journal Year: 2022, Volume and Issue: 19(16), P. 9962 - 9962

Published: Aug. 12, 2022

Water pollution due to textile dyes is a serious threat every life form. Bacteria can degrade and detoxify toxic present in effluents wastewater. The study aimed evaluate the degradation potential of eleven bacterial strains for azo dye methyl red. optimum efficiency was obtained using P. aeruginosa. It found from initial screening results that aeruginosa most potent strain with 81.49% activity hence it subsequently used other experiments. To optimize conditions, number experiments were conducted where only one variable varied at time maximum observed 20 ppm concentration, 1666.67 mg/L glucose 666.66 sodium chloride pH 9, temperature 40 °C, 1000 urea 3 days incubation period, 66.66 hydroquinone (redox mediator). interactive effect pH, time, temperature, concentration second-order quadratic optimization process conditions further enhance biodegradation by 88.37%. metabolites aliquot mixture optimized analyzed Fourier transform infrared (FTIR), GC-MS, proton, carbon 13 Nuclear Magnetic Resonance (NMR) spectroscopic techniques. FTIR confirmed reduction bond Gas Chromatography-Mass Spectrometry (GC-MS) revealed degraded contains benzoic acid o-xylene as predominant constituents. Even isolated silica gel column identified 1H 13C NMR spectroscopy. These indicated be utilized an efficient detoxification remediation industrial wastewater containing red dyes.

Language: Английский

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A feasible approach for Azo-dye (Methyl Orange) degradation by textile effluent isolate Serratia marcescens ED1 strain for water sustainability: AST identification, degradation optimization and pathway hypothesis

Heliyon, Journal Year: 2024, Volume and Issue: 10(11), P. e32339 - e32339

Published: June 1, 2024

Methyl orange (MO) is a dye commonly used in the textile industry that harms aquatic life, soil and human health due to its potential as an environmental pollutant. The present study describes degradation ability of

Language: Английский

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Sustainable biodegradation of malachite green dye by novel non-pathogenic Pseudomonas aeruginosa ED24

World Journal of Microbiology and Biotechnology, Journal Year: 2025, Volume and Issue: 41(2)

Published: Jan. 22, 2025

Language: Английский

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Biodegradation, Decolorization, and Detoxification of Di-Azo Dye Direct Red 81 by Halotolerant, Alkali-Thermo-Tolerant Bacterial Mixed Cultures

Microorganisms, Journal Year: 2022, Volume and Issue: 10(5), P. 994 - 994

Published: May 9, 2022

Azo dyes impact the environment and deserve attention due to their widespread use in textile tanning industries challenging degradation. The high temperature, pH, salinity used these render industrial effluent decolorization detoxification a process. An enrichment technique was employed screen for cost-effective biodegraders of Direct Red 81 (DR81) as model diazo dye recalcitrant Our results showed that three mixed bacterial cultures achieved ≥80% within 8 h 40 mg/L minimal salt medium with 0.1% yeast extract (MSM-Y) real wastewater. Moreover, ≥70% 24 when challenged up 600 wastewater tolerated temperatures 60 °C, pH 10, 5% MSM-Y. Azoreductase main contributor DR81 based on crude oxidative reductive enzymatic activity cell-free supernatants stable at wide range temperatures. Molecular identification azoreductase genes suggested multiple AzoR per culture possible novel gene. Metabolite analysis using hyphenated techniques two pathways biodegradation involving symmetric asymmetric azo-bond cleavage. metabolites were non-toxic Artemia salina nauplii Lepidium sativum seeds. This study provided evidence degradation robust stress-tolerant potential azo treatment.

Language: Английский

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Azo Dye Bioremediation: An Interdisciplinary Path to Sustainable Fashion

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: unknown, P. 103832 - 103832

Published: Sept. 1, 2024

Language: Английский

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Harnessing the potential of a novel lignin-degrading Streptomyces sp. MS-S2 from wood-feeding termite for malachite green decolorization and detoxification

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 186, P. 189 - 199

Published: April 5, 2024

Language: Английский

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Biodegradation and decolorization of trypan blue azo dye by marine bacteria Vibrio sp. JM-17

Biocatalysis and Agricultural Biotechnology, Journal Year: 2023, Volume and Issue: 51, P. 102802 - 102802

Published: July 29, 2023

Language: Английский

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Biodegradation of aniline blue dye by salt-tolerant Bacillus thuringiensis DHC4 isolated from soil-feeding termite guts

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 457, P. 142489 - 142489

Published: May 4, 2024

Language: Английский

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Tunable Fe+3 and W+6 Co-doped BiVO4 nanohybrids with efficient photocatalytic and electrochemical chemical sensing characteristics

Ceramics International, Journal Year: 2023, Volume and Issue: 50(1), P. 957 - 968

Published: Oct. 20, 2023

Language: Английский

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Preparation of mesoporous lignin-based aerogels for organic dyes removal

International Journal of Chemical Reactor Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Abstract The efficient use of biomass and the treatment dye-contaminated wastewater are urgent issues. In this study, a novel mesoporous lignin-based composite aerogel (SL/CMX/AM) is synthesized via chemical cross-linking/freeze-drying method, its structure was characterized by SEM, FI-TR, BET. results showed that with dimensions ranging from 10 to 50 nm. aerogels were further applied for adsorption dyes. revealed optimal purifying conditions as follows: pH MB solution 11, mass 0.0100 g, concentration 200 mg g −1 , time 720 min, temperature 313.15 K, producing highest capacity 39.80 . mechanism discussed. process followed pseudo-second-order model fitted Langmuir isotherm model. thermodynamic parameters indicated dyes onto investigated material an endothermic spontaneous reaction at 293.15–313.15 K. Overall, work guides preparation their potential application in addressing problems.

Language: Английский

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