Biodegradation and detoxification of -nitrophenol by Rhodococcus wratislaviensis

Gemini, Virginia L.; Gallego, Alfredo; Oliveira, Valéria Maia de; Gómez, Carlos Jaime Geroy; Manfio, Gilson Paulo; Korol, S.

doi:10.1016/j.ibiod.2004.08.003

Cited by 82 publications

(34 citation statements)

References 17 publications

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“…Degradation of pNP occurs by different pathways (Kitagawa et al 2004;Singh and Walker 2006;Perry and Zylstra 2007) and has mainly been reported in aerobic Gram-negative bacteria like Pseudomonas (Löser et al 1998) and Moraxella strains (Spain and Gibson 1991) as well as Gram-positive bacteria of the genera Rhodococcus (Gemini et al 2005) and Bacillus (Kadiyala and Spain 1998).…”

Section: Introductionmentioning

confidence: 99%

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Nielsen

Kjeldsen

Ingvorsen

2010

Antonie van Leeuwenhoek

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A novel actinobacterium, designated PNP1(T), was isolated from a wastewater treatment plant at a pesticide factory by selective enrichment with para-nitrophenol. The strictly aerobic strain PNP1(T) grew with para-nitrophenol as the sole carbon and energy source. Metabolism of para-nitrophenol resulted in the stoichiometric release of nitrite. When incubated with both para-nitrophenol and acetate, para-nitrophenol was degraded and utilized as growth substrate prior to acetate. When grown on acetate (in the absence of ammonium) both nitrite and nitrate served as nitrogen sources, nitrate being quantitatively reduced to nitrite which accumulated in cultures during aerobic growth. Cells were coccoid and stained Gram-positive, were non-motile and did not form endospores. Colonies of strain PNP1(T) on agar medium were bright yellow, circular and smooth. The dominant menaquinone was MK-8(H(2)) (54%) and the major cellular fatty acid was anteiso C15:0 (75%). Strain PNP1(T) grew optimally at 27°C, at pH 8-8.5, at salinities 3% (w/v) NaCl, yet exhibited a substantial halotolerance with growth occurring at salinities up to 17% (w/v) NaCl. In addition to para-nitrophenol, a range of sugars, short chain fatty acids and alcohols served as electron donors for growth. The DNA G + C mol% was 68%. The genotypic and phenotypic properties suggest that strain PNP1(T) represents a novel species of the actinobacterial genus Citricoccus for which the name Citricoccus nitrophenolicus is proposed. It is the first member of this genus that has been reported to hydrolyze and grow on para-nitrophenol. The type strain is PNP1(T) (=DSM 23311(T) = CCUG 59571(T)).

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Section: Introductionmentioning

confidence: 99%

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Nielsen

Kjeldsen

Ingvorsen

2010

Antonie van Leeuwenhoek

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“…Production of a variety of chemicals (medicines, dyes, explosives, and pesticides) is dependent on the use of nitro-aromatics such as pnitrophenol (PNP) [1,2]. The acidic aromatic compound such as nitroaromatics are un-couplers of oxidative phosphorylation function in living organisms by dissociating the membrane electron transport from the generation of ATP (i.e., release of electron transport system by the un-coupler results to dissipation of energy as heat).…”

Section: Introductionmentioning

confidence: 99%

“…) [2]. The process economics and friendliness for the ecosystems are reason for popularity of biotechnological techniques in pollutant removal as compared with the physical and chemical treatment used in treating refractory compound.…”

mentioning

confidence: 99%

“…The process economics and friendliness for the ecosystems are reason for popularity of biotechnological techniques in pollutant removal as compared with the physical and chemical treatment used in treating refractory compound. Despite of the toxic effects of nitroaromatic, several microorganisms have been identified as the nitroaromatic degraders [1][2][3][4][5][6][7][8]. Four enzymatic mechanisms on basis of oxidation/reduction reactions have been suggested in this area [9].…”

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confidence: 99%

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Experimental Investigation and Kinetic Modeling of p‐Nitrophenol and Phenol by Kissiris‐Immobilized Ralstonia eutropha in a Batch Reactor

Motamedi

Habibi

Maleki

et al. 2014

CLEAN Soil Air Water

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Experimental Investigation and Kinetic Modeling of p-Nitrophenol and Phenol by Kissiris-Immobilized Ralstonia eutropha in a Batch ReactorCo-metabolic degradation of p-nitrophenol (PNP) and phenol by kissiris-immobilized Ralstonia eutropha cells was studied in a batch bioreactor operated in recycling mode (30°C, initial pH of 7.7, aeration rate of 0.5 vvm, and recycling flow rate of 25 mL min À1). Decreasing trends of specific degradation rates of phenol (q Sg ) and PNP (q Sng ) with an increase of initial PNP concentration, were mathematically modeled considering the competitive inhibition between growth and non-growth substrates and self-inhibition of non-growth substrate. A non-linear regression on the equations used in defining of q Sg , and q Sng , was used to estimate the relevant kinetic parameters. On the best fitted curve, the kinetic parameters were q max Sg ¼ 0.032, and. These parameters were used for dynamic prediction of the substrates concentration feature during co-metabolic degradation experiments.

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“…The presence of phenolic compounds in the natural environment is of great concern because of their toxicity and reactivity [2]. Different methods were used to degrade phenolic pollutants, e.g., adsorption [3], catalytic oxidation [4], and biodegradation [5]. However, due to the toxicity and stability of the aromatic ring, the treatment of this pollutant group with traditional disposal methods is difficult.…”

Section: Introductionmentioning

confidence: 99%

Oxidation of Phenol by Microbubble‐Assisted Microelectrolysis

Ren

Ondruschka

et al. 2011

Chem Eng & Technol

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The degradation of phenol under microelectrolysis was enhanced by O 2 -microbubbles. Phenol solution was circled in a microbubble-assisted microelectrolysis reactor under acid conditions. The degradation rate of phenol reached 65 % within 2 h with O 2 -microbubbles, compared to 9.5 % and 4 % with air-and N 2 -microbubbles due to better dissolution of oxygen with finer microbubbles and at higher dissolution pressure. Higher efficiencies of phenol degradation at lower temperature further confirm the role of dissolved oxygen. In the microbubbleassisted microelectrolysis system dissolved oxygen, carbon steel pellets, and sulfuric acid are necessary conditions for the oxidation of phenol. The conversion of phenol increases with an increasing amount of carbon steel pellets and/or sulfuric acid. Catechol, hydroquinone, and low-molecular-weight carboxylic acids are the major products.

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Biodegradation and detoxification of -nitrophenol by Rhodococcus wratislaviensis

Cited by 82 publications

References 17 publications

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Description of Citricoccus nitrophenolicus sp. nov., a para-nitrophenol degrading actinobacterium isolated from a wastewater treatment plant and emended description of the genus Citricoccus Altenburger et al. 2002

Experimental Investigation and Kinetic Modeling of p‐Nitrophenol and Phenol by Kissiris‐Immobilized Ralstonia eutropha in a Batch Reactor

Oxidation of Phenol by Microbubble‐Assisted Microelectrolysis

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