Mineralization of the sulfonated azo dye Mordant Yellow 3 by a 6-aminonaphthalene-2-sulfonate-degrading bacterial consortium

Haug, Wolfgang; Schmidt, A.; Nörtemann, Bernd; Hempel, D. C.; Stolz, A.; Knackmuss, Hans‐Joachim

doi:10.1128/aem.57.11.3144-3149.1991

Cited by 275 publications

(60 citation statements)

References 19 publications

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“…2). This can be explained on the basis that glucose serves as a source of reducing equivalents and at lower glucose concentration the reducing equivalents generated would not be enough to support efficient decolorization (HAUG et al 1991, DONLON et al 1997.…”

Section: Effect Of Co-substrate On Dye Decolorizationmentioning

confidence: 99%

“…Alternately glucose may enhance decolorization by allowing faster growth of actively respiring bacteria resulting in rapid depletion of oxygen from the medium and thus creating conditions favourable for anaerobic reduction of azo dyes (HAUG et al 1991). The culture also exhibited the requirement of yeast extract in addition to glucose for decolorization.…”

Section: Effect Of Co-substrate On Dye Decolorizationmentioning

confidence: 99%

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Decolorization of diazo-dye Reactive Blue 172 byPseudomonas aeruginosa NBAR12

Bhatt

Patel

Keharia

et al. 2005

J. Basic Microbiol.

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A novel bacterial strain capable of decolorizing textile dyes was isolated from dye contaminated soil obtained from industrial estate of Ahmedabad, Gujarat, India. The bacterial isolate Pseudomonas aeruginosa NBAR12 was capable of decolorizing 12 different dyes tested with decolorization efficiency varying in the range of 80 to 95%. Maximum extent as well as rate of Reactive Blue 172 (RB 172) decolorization was observed when glucose (2 g x l(-1)) and yeast extract (2.5 g x l(-1)) were supplemented in the medium. The optimum dye pH and temperature for dye decolorization was found to be 7 and 40 degrees C, respectively. The decolorizing activity was found to increase with increasing the dye concentration from 50 to 400 mg x l(-1). The dye decolorization was strongly inhibited at 500 mg dye l(-1) in the medium. High performance thin layer chromatography analysis indicated that dye decolorization occurred due to the breakdown of dye molecules into colorless end products.

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Section: Effect Of Co-substrate On Dye Decolorizationmentioning

confidence: 99%

Section: Effect Of Co-substrate On Dye Decolorizationmentioning

confidence: 99%

Decolorization of diazo-dye Reactive Blue 172 byPseudomonas aeruginosa NBAR12

Bhatt

Patel

Keharia

et al. 2005

J. Basic Microbiol.

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“…The bacterial utilization of arenesulfonates as carbon sources is characterized by narrow substrate ranges [37,88,129], one major exception being Sphingomonas sp. strain BN6 [130,131]. In contrast, the assimilation of sulfur from these compounds is characterized by the wide substrate ranges of the organisms involved; Pseudomonas putida S-313 desulfonates several hundred compounds [44,45,132], and other bacteria have similar properties [46,129].…”

Section: Aerobes Assimilating Sulfonate-sulfurmentioning

confidence: 99%

Microbial desulfonation

Cook

1998

FEMS Microbiology Reviews

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Organosulfonates are widespread compounds, be they natural products of low or high molecular weight, or xenobiotics. Many commonly found compounds are subject to desulfonation, even if it is not certain whether all the corresponding enzymes are widely expressed in nature. Sulfonates require transport systems to cross the cell membrane, but few physiological data and no biochemical data on this topic are available, though the sequences of some of the appropriate genes are known. Desulfonative enzymes in aerobic bacteria are generally regulated by induction, if the sulfonate is serving as a carbon and energy source, or by a global network for sulfur scavenging (sulfate starvation induced (SSI) stimulon) if the sulfonate is serving as a source of sulfur. It is unclear whether an SSI regulation is found in anaerobes. The anaerobic bacteria examined can express the degradative enzymes constitutively, if the sulfonate is being utilized as a carbon source, but enzyme induction has also been observed. At least three general mechanisms of desulfonation are recognisable or postulated in the aerobic catabolism of sulfonates: (1) activate the carbon neighboring the C y Q bond and release of sulfite assisted by a thiamine pyrophosphate cofactor; (2) destabilize the C y Q bond by addition of an oxygen atom to the same carbon, usually directly by oxygenation, and loss of the good leaving group, sulfite; (3) an unidentified, formally reductive reaction. Under SSIS control, different variants of mechanism (2) can be seen. Catabolism of sulfonates by anaerobes was discovered recently, and the degradation of taurine involves mechanism (1). When anaerobes assimilate sulfonate sulfur, there is one common, unknown mechanism to desulfonate the inert aromatic compounds and another to desulfonate inert aliphatic compounds; taurine seems to be desulfonated by mechanism (1).

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“…The degradation of azo dyes by microbial consortia and the concomitant manipulation of cultural conditions appear promising. Haug et al [71] recently demonstrated that under anaerobic conditions, the sulfonated azo dye Mordant Yellow 3 was reduced by a bacterial consortium preadapted to aerobic growth on 6-aminonaphthalene-2-sulfonate. The azo linkage of Mordant Yellow 3 was reduced anaerobically, producing 6-aminonaphthalene-2-sulfonate and 5-aminosalicylate, which are aromatic amines.…”

Section: Research Perspectivesmentioning

confidence: 99%

Degradation of Azo Dyes by Environmental Microorganisms and Helminths

Chung¹,

Stevens²

1993

Environ Toxicol Chem

141

154

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The degradation of azo dyes by environmental microorganisms, fungi, and helminths is reviewed. Azo dyes are used in a wide variety of products and can be found in the effluent of most sewage treatment facilities. Substantial quantities of these dyes have been deposited in the environment, particularly in streams and rivers. Azo dyes were shown to affect microbial activities and microbial population sizes in the sediments and in the water columns of aquatic habitats. Only a few aerobic bacteria have been found to reduce azo dyes under aerobic conditions, and little is known about the process. A substantial number of anaerobic bacteria capable of azo dye reduction have been reported. The enzyme responsible for azo dye reduction has been partially purified, and characterization of the enzyme is proceeding. The nematode Ascaris lumbricoides and the cestode Moniezia expunsa have been reported to reduce azo dyes anaerobically. Recently the fungus Phanerochaete chrysosporium was reported to mineralize azo dyes via a peroxidation-mediated pathway. A possible degradation pathway for the mineralization of azo dyes is proposed and future research needs are discussed.

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Mineralization of the sulfonated azo dye Mordant Yellow 3 by a 6-aminonaphthalene-2-sulfonate-degrading bacterial consortium

Cited by 275 publications

References 19 publications

Decolorization of diazo-dye Reactive Blue 172 byPseudomonas aeruginosa NBAR12

Decolorization of diazo-dye Reactive Blue 172 byPseudomonas aeruginosa NBAR12

Microbial desulfonation

Degradation of Azo Dyes by Environmental Microorganisms and Helminths

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