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

International Journal of Environmental Research and Public Health, Год журнала: 2022, Номер 19(16), С. 9962 - 9962

Опубликована: Авг. 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.

Язык: Английский

---

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, Год журнала: 2024, Номер 10(11), С. e32339 - e32339

Опубликована: Июнь 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

Язык: Английский

---

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

World Journal of Microbiology and Biotechnology, Год журнала: 2025, Номер 41(2)

Опубликована: Янв. 22, 2025

Язык: Английский

---

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

Microorganisms, Год журнала: 2022, Номер 10(5), С. 994 - 994

Опубликована: Май 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.

Язык: Английский

---

Azo Dye Bioremediation: An Interdisciplinary Path to Sustainable Fashion

Environmental Technology & Innovation, Год журнала: 2024, Номер unknown, С. 103832 - 103832

Опубликована: Сен. 1, 2024

Язык: Английский

---

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, Год журнала: 2024, Номер 186, С. 189 - 199

Опубликована: Апрель 5, 2024

Язык: Английский

---

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

Biocatalysis and Agricultural Biotechnology, Год журнала: 2023, Номер 51, С. 102802 - 102802

Опубликована: Июль 29, 2023

Язык: Английский

---

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

Journal of Cleaner Production, Год журнала: 2024, Номер 457, С. 142489 - 142489

Опубликована: Май 4, 2024

Язык: Английский

---

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

Ceramics International, Год журнала: 2023, Номер 50(1), С. 957 - 968

Опубликована: Окт. 20, 2023

Язык: Английский

---

Preparation of mesoporous lignin-based aerogels for organic dyes removal

International Journal of Chemical Reactor Engineering, Год журнала: 2025, Номер unknown

Опубликована: Март 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.

Язык: Английский

---