Influence of organic and inorganic compounds on oxidoreductive decolorization of sulfonated azo dye C.I. Reactive Orange 16

Telke, Amar A.; Kalyani, Dayanand; Dawkar, Vishal V.; Govindwar, Sanjay P.

doi:10.1016/j.jhazmat.2009.07.008

Cited by 112 publications

(44 citation statements)

References 40 publications

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“…Some other enzymes like NADH-DCIP reductase and riboflavin reductase have been reported to function for reduction of azo dyes (Ghodake et al, 2009;Kalyani et al, 2008;Telke et al, 2009), but so far these have had limited application for the reduction of azo dyes. Most of these enzymes are shown to be ineffective in vivo (Blumel et al, 2002;Russ et al, 2000).…”

Section: Reductive Enzymesmentioning

confidence: 99%

“…This effect may be due to protection from inactivation of the enzyme by hydrogen peroxide or interactions that facilitate the complete oxidation-reduction cycle for the lignin peroxidase (Young & Yu, 1997). Telke et al (2009) reported a novel enzyme, a laccase-like phenol oxidase that has the ability to react with non-phenolic substrates. Lignin peroxidase catalyzes the depolymerization of methylated lignin in dye degradation process (Saratale et al, 2009(Saratale et al, , 2011.…”

Section: Oxidative Enzymesmentioning

confidence: 99%

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Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations

Ibekwe

Yang

et al. 2016

Science of The Total Environment

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Azo dyes and their intermediate degradation products are common contaminants of soil and groundwater in developing countries where textile and leather dye products are produced. The toxicity of azo dyes is primarily associated with their molecular structure, substitution groups and reactivity. To avoid contamination of natural resources and to minimize risk to human health, this wastewater requires treatment in an environmentally safe manner. This manuscript critically reviews biological treatment systems and the role of bacterial reductive and oxidative enzymes/processes in the bioremediation of dye-polluted wastewaters. Many studies have shown that a variety of culturable bacteria have efficient enzymatic systems that can carry out complete mineralization of dye chemicals and their metabolites (aromatic compounds) over a wide range of environmental conditions. Complete mineralization of azo dyes generally involves a two-step process requiring initial anaerobic treatment for decolorization, followed by an oxidative process that results in degradation of the toxic intermediates that are formed during the first step. Molecular studies have revealed that the first reductive process can be carried out by two classes of enzymes involving flavin-dependent and flavin-free azoreductases under anaerobic or low oxygen conditions. The second step that is carried out by oxidative enzymes that primarily involves broad specificity peroxidases, laccases and tyrosinases. This review focuses, in particular, on the characterization of these enzymes with respect to their enzyme kinetics and the environmental conditions that are necessary for bioreactor systems to treat azo dyes contained in wastewater.

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Section: Reductive Enzymesmentioning

confidence: 99%

Section: Oxidative Enzymesmentioning

confidence: 99%

Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations

Ibekwe

Yang

et al. 2016

Science of The Total Environment

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“…Turquoise Blue extracts generated a number of signals greater than Remazol Black and Novacron Red extracts. The use of TLC to evaluate the fungal or enzymatic degradation of dye have been reported in the enzymatic decolorization Telke et al 2009). In these publications, the disappearance of the original dye's signal and the appearance of one or more signals with different Rf were correlated with fungal or enzymatic dye degradation.…”

Section: Decolorization Products Evaluationmentioning

confidence: 99%

Degradation and detoxification of synthetic dyes and textile industry effluents by newly isolated Leptosphaerulina sp. from Colombia

Plácido

Chanagá

Ortiz-Monsalve

et al. 2016

Bioresour. Bioprocess.

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Background: Wastewaters from the textile industry are an environmental problem for the well-known Colombian textile industry. Ligninolytic fungi and their enzymes are an option for the treatment of these wastewaters; however, the Colombian biodiversity has not been deeply evaluated for fungal strains with ligninolytic activities. In this research, 92 Colombian fungal isolates were collected from four locations around the Aburrá valley, Antioquia, Colombia. Their decolorizing activities were evaluated using Novacron Red, Remazol Black and Turquoise Blue in solid and liquid media at different culture conditions. The best fungal isolate was evaluated in the bioremediation of two real effluents and its enzymatic extracts were used in the decolorization of the three dyes.Results: From 92 Colombian fungal isolates, Leptosphaerulina sp. exhibited the best decolorization percentage (>90 %) in solid and liquid cultures, and in agitated and un-agitated conditions. Leptosphaerulina sp. effectively decolorized the three dyes and two real effluents from textile industries. This decolorization was catalyzed by the production of significant quantities of laccase (650 U/L) and manganese peroxidase (100 U/L). Leptosphaerulina sp. enzymatic extracts exhibited decolorizing activity when ABTS as mediator was added. Leptosphaerulina sp. decolorized two real effluents from textile industries (>90 %) under conditions of low pH and glucose supplementation. Enzymatic degradation and decolorization products' innocuity was demonstrated by cytotoxic and chromatographic analyses.Conclusion: Leptosphaerulina sp. was the best Colombian isolate. This fungal strain achieved a decolorization above 90 % for the three dyes and two real effluents from a textile industry. This decolorization was performed by producing significant amounts of laccase and manganese peroxidase. Leptosphaerulina sp. is an interesting prospect to treat waters polluted with dyes without the production of compounds dangerous for the environment.

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“…ADR also showed maximum decolorization of C.I. reactive orange 16 (100 mg/L) under static condition whereas less decolorization at shaking condition (Telke et al, 2009). The other examined dye: reactive turquoise, cibacron violet and black5 showed a lower decolorization efficiency compared with congo and methyl red at 28, 32 and 70%, respectively, after 72 h of incubation.…”

Section: Decolorization Of Different Azo-dyesmentioning

confidence: 85%

Decolorization of two azo dyes using marine Lysobacter sp. T312D9

Khouloud¹

2013

MJM

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Aims: Novel azo dye-degrading bacterium T312D9 strain has been isolated from Abou Quir Gulf, Alexandria, Egypt. Methodology and Results:The identification of the isolate by 16S rRNA gene sequencing revealed to be Lysobacter sp. This marine ecofriendly isolate was exploited for its ability to degrade two synthetic azo dyes considered as detrimental pollutants from industrial effluents: congo red and methyl red. Using different dye concentrations showed the highest metabolic activity for complete degradation obtained from 100 to 500 mg/L within 30 h under static condition, also, sustaining higher dye loading of 1 g/L was carried out. The significant induction of enzymes NADH -2,6-dichloroindophenol (NADH-DCIP) reductase and tyrosinase indicated their prominent role in dye degradation. The biodegradation of two azo dyes were analyzed by gas chromatographicmass spectrum analysis (GC-MS) and Fourier transform infrared spectroscopy (FTIR) before and after treatment. Toxicity study revealed the much less toxic nature of the metabolites produced after complete decolorization. Conclusion, significance and impact of study: Lysobacter sp T312D9 represent an inexpensive and promising marine bacteria for removal of both methyl and congo red. High sustainable metabolic activity for biodegradation under static condition. NADH-DCIP reductase and tyrosinase were significantly induced during biodegradation of dyes. The obtained metabolites revealed to be less toxic in nature which offers a practical biological treatment.

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Influence of organic and inorganic compounds on oxidoreductive decolorization of sulfonated azo dye C.I. Reactive Orange 16

Cited by 112 publications

References 40 publications

Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations

Bacterial diversity and composition in major fresh produce growing soils affected by physiochemical properties and geographic locations

Degradation and detoxification of synthetic dyes and textile industry effluents by newly isolated Leptosphaerulina sp. from Colombia

Decolorization of two azo dyes using marine Lysobacter sp. T312D9

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