Microbial degradation of phenols: a review

Agarry, S. E.; Durojaiye, A.O.; Solomon, B. O.

doi:10.1504/ijep.2008.016895

Cited by 105 publications

(62 citation statements)

References 91 publications

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“…These factors were found critical in biodegradation processes by many previous studies (Menale et al, 2012;Bhattacharya and Banerjee, 2008;El-Naas et al, 2010a;2009;2010b;Sheeja and Murugesan, 2002;Bhattacharya et al, 2009;Agarry et al, 2008b;Yao et al, 2009;Agarry et al, 2008a). Subsequently, this was followed by optimization of the first three factors by the response surface methodology.…”

Section: Single Factor Batch Experiments To Identify the Optimum Rangmentioning

confidence: 99%

Biodegradation of 2, 4 Dichlorophenol

Al-Khalid¹,

El‐Naas²

2017

American Journal of Engineering and Applied Sciences

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Abstract:The present study focuses on the optimization of process parameters of the aerobic biodegradation of 2, 4 Dichlorophenol (2, 4 DCP) by a commercial strain of P. putida immobilized in PVA gel matrix, using design of experiments by Response Surface Methodology (RSM). The degradation rates obtained from these experiments were used to evaluate the effects of the main factors and their interactions during the biodegradation of 2, 4 DCP. An effective quadratic regression model predicting the rate in terms of the main independent variables, namely temperature, initial pH and initial concentration of 2, 4 DCP, was developed. The optimum conditions for DCP degradation were obtained as follows: Temperature 32.6°C, pH 5.0 and initial DCP concentration 70.5 mg L −1 , resulting in a maximum predicted degradation rate of 41.8 mg L. Under these optimized conditions, a degradation rate of 40.1 mg L −1 h −1was experimentally obtained, thus validating the model.

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Section: Single Factor Batch Experiments To Identify the Optimum Rangmentioning

confidence: 99%

Biodegradation of 2, 4 Dichlorophenol

Al-Khalid¹,

El‐Naas²

2017

American Journal of Engineering and Applied Sciences

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“…Presently the chemical treatments have been used in most of the industrial wastewater treatments. But it has been found to produce harmful secondary pollutants and costly as well (Agarry et al, 2008). The biological degradation of phenolic compounds is an alternative approach to overcome aforementioned issues.…”

Section: Introductionmentioning

confidence: 99%

“…Microorganisms can metabolize phenolic compounds by either ortho-or meta-cleavage (Dagley, 1971;Agarry et al, 2008). Phenol hydroxylase has known as the first enzyme in both metabolic pathways (ortho-or meta-pathway).…”

Section: Introductionmentioning

confidence: 99%

Identification and Characterization of Potential Phenol Degrading Bacterial strains Isolated from Municipal Sewage, Bilaspur, Chhattisgarh

Parihar¹,

Dubey²

2016

Int J Appl Sci Biotechnol

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Phenol and its derivatives are consistently causing harmful effects to an aquatic ecosystem. The present study focused on the isolation and characterization of potential phenol degrading bacterial strains and subsequently optimization of media ingredients for efficient phenol degradation by potential bacterial strains. Bacterial strains were isolated from municipal sewage, Bilaspur (21'47 and 23'8 N 81'14 and 83'15 E). After optimization phenol degradation rate was increased by 1.84 fold for PDB 5 (from 40.37% to 74.67%) and 1.39 fold for PDB 11 (from 58.62% to 81.51%) at 500mg/l initial phenol concentration. PDB 5 and PDB 11 were identified as Streptococcus sp. PDB 5 and Pseudomonas sp. PDB 11 respectively as potential phenol degrading bacterial strains. These strains can further be used in microbially assisted phenol degradation to remove phenol derivatives present in industrial wastewater.

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“…the metabolism of aromatic compounds, particularly phenol and its derivatives are intensively studied in prokaryotic microorganisms (1,8,11). Some members of the yeast genera Candida, Rodotorula, Trichosporon and others that can metabolize phenolic compounds as a sole carbon and energy source have been described (8,14).…”

Section: Introductionmentioning

confidence: 99%

“…catechol, the product of this reaction, is a central intermediate in the degradation pathways of various aromatic compounds. it is metabolized by different strains via either the ortho-or the meta-fission pathway depending on the catechol dioxygenase specificity (1). The cycloisomerases catalyze the conversion of cis,cis-muconate to (+)-muconolactone in the orthomechanism of phenol degradation (10,25).…”

Section: Introductionmentioning

confidence: 99%