Phenol degradation bypseudomonas aeruginosa

Ahmed, A. M.; Nakhla, G.F.; Farooq, Shaukat

doi:10.1080/10934529509376188

Cited by 24 publications

(12 citation statements)

References 6 publications

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“…Phenol is a major environmental pollutant and phenol concentrations of upto 10,000 mg l −1 have been reported in many industrial wastes, being produced in several industries and operations such as petroleum refineries, gas and coke oven industries, pharmaceuticals, explosive manufacture, phenol-formaldehyde resin manufacture, plastic and varnish industries and related metallurgical operations, etc. [4][5][6][7]. Phenols are toxic to several biochemical functions [8] and to fish life [9].…”

Section: Introductionmentioning

confidence: 99%

Isolation and identification of novel high strength phenol degrading bacterial strains from phenol-formaldehyde resin manufacturing industrial wastewater

Arutchelvan

Kanakasabai

Nagarajan

et al. 2005

Journal of Hazardous Materials

102

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Section: Introductionmentioning

confidence: 99%

Isolation and identification of novel high strength phenol degrading bacterial strains from phenol-formaldehyde resin manufacturing industrial wastewater

Arutchelvan

Kanakasabai

Nagarajan

et al. 2005

Journal of Hazardous Materials

102

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“…These pollutants are usually treated in activated sludge processes because many aerobic bacteria and fungi are able to use phenol as a source of carbon and energy (Rebhun and Galil 1988;Watanabe et al, 1996). Biodegradation of phenol, therefore, has long been the subject of numerous investigations (Ruiz-Rrdaz et al, 2001;Chang et al, 1998;Fava et al, 1995;Abd-El-Haleem et al, 2003;Dean-Ross, 1989;Solomon et al, 1994;Ahmed et al, 1995;Alleman et al, 1995;Collins and daugulis, 1997;Fulthorpe and Allen, 1995;Lin et al, 1990;Morris and Lester, 1994;Ryu et al, 2000;Wang et al, 1996). A typical pathway for metabolizing an aromatic compound like phenol is to dihydroxylate the benzene ring to form a catechol derivative and then to open the ring through ortho or meta oxidation.…”

mentioning

confidence: 99%

Detection of meta - and ortho -cleavage dioxygenases in bacterial phenol-degraders

Zaki

2006

Journal of Applied Sciences and Environmental Management

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ABSTRACT:In the last five years, in our lab, several bacterial genera capable of degrading phenol as sole carbon source were isolated from different Egyptian ecosystems. Phenol mineralization using these isolates was ranged from 55% to 0.4%. In the present work, randomly chosen representative strains; W-17, DF4 (Acinetobacter), Sea-8 (Stenotrophomonas), W-6 (Klebsiella), S-5 (Bacillus) and W-15 (Ralstonia) were analyzed for the type of ring-cleavage (ortho or meta) dioxygenase physiologically induced during growth in the presence of phenol as a sole carbon and energy source. The specific activities of the phenol-degrading enzymes phenol hydroxylase, catechol-1,2-dioxygenase and catechol-2,3-dioxygenase were investigated. In addition, whole-cell dioxygenases activities of the examined isolates were determined. Out of the results, only the Acinetobacter strains W-17 and DF-4 showed activity with the enzymes phenol hydroxylase and catechol-1,2-dioxygenase, which responsible for phenol degradation through ortho-cleavage pathway. In contrast, isolates S-5, Sea-8, W-6, W-15 and Pla-1 showed activity with the enzyme catalyzing the second step in the phenol degradation meta-cleavage pathway, catechol-2,3-dioxygenase. On the basis of our previous and present analysis, the investigated isolates are considered to have a good potential for application in remediation of phenol contaminated environments and industrial wastewater. @JASEM Phenol and phenolic compounds are of widespread use in many industries such as polymeric resin production and oil refining. As a result, these compounds are commonly encountered in industrial effluents and surface water. These pollutants are usually treated in activated sludge processes because many aerobic bacteria and fungi are able to use phenol as a source of carbon and energy (Rebhun and Galil 1988;Watanabe et al., 1996). Biodegradation of phenol, therefore, has long been the subject of numerous investigations (Ruiz-Rrdaz et al

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“…Many industrial processes produce phenolic wastewater in which phenol may be present at concentrations as high as several grams per liter (Ahmed et al 1995;Razo-Flores et al 2003). The fate of phenolics is of serious environmental concern, since they are toxic and persist.…”

Section: Introductionmentioning

confidence: 98%

Phenol biodegradation in hybrid hollow-fiber membrane bioreactors

Wang

2008

World J Microbiol Biotechnol

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Hollow-fiber membrane bioreactors were developed with granular activated carbon (GAC) for the biodegradation of phenol using Pseudomonas putida. Hollow fibers showed similar structure with/without GAC incorporated; while GAC hollow fiber had a stronger phenol adsorption capacity. In batch biotransformation experiments, complete depletion of 1000 mg phenol l -1 (at which concentration free cells cannot grow) was accomplished in the reactor within 18 h in the hybrid bioreactor, comparing with 23 h in the GAC free bioreactor. Desorption and bioregeneration of the hollow-fiber membrane were believed to be the key for the enhancement of bioreactor performance. At continuous running, the GAC bioreactor showed its superiority over the GAC free bioreactor during start-up and elevated loading phase. More than 90% of the phenol was transformed in the GAC bioreactor when the phenol loading was \24 mg h -1 . The better bioreactor performance may be due to the enhanced mass transportation and adsorption capacity with the incorporation of GAC.

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Phenol degradation bypseudomonas aeruginosa

Cited by 24 publications

References 6 publications

Isolation and identification of novel high strength phenol degrading bacterial strains from phenol-formaldehyde resin manufacturing industrial wastewater

Isolation and identification of novel high strength phenol degrading bacterial strains from phenol-formaldehyde resin manufacturing industrial wastewater

Detection of <i>meta</i> - and <i>ortho</i> -cleavage dioxygenases in bacterial phenol-degraders

Phenol biodegradation in hybrid hollow-fiber membrane bioreactors

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