Phenol biodegradation by the yeast Candida tropicalis in the presence of m-cresol

Jiang, Yan; Wen, Jianping; Bai, Jing; Wang, Daoquan; Hu, Zongding

doi:10.1016/j.bej.2005.12.002

Cited by 133 publications

(68 citation statements)

References 23 publications

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“…Due to these adverse health effects of phenols, the World Health Organization (WHO) has set a guideline of 1 µg/l to regulate the phenol concentration in drinking water [14]. The high-volume use of phenols in the United States and their potential toxicity has led the U.S. Environmental Protection Agency (US EPA) to define them as priority pollutants [15].…”

Section: Introductionmentioning

confidence: 99%

Transient Behavior in Biodegradation of 2, 4 Dichlorophenol: Is It a Starvation Effect?

Al-Khalid¹,

El‐Naas²

2013

IJCEA

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Abstract-Batch experiments were carried out to examine the biomass acclimatization during the aerobic biodegradation of 2, 4 dichlorophenol (2, 4 DCP) by Pseudomonas putida immobilized in polyvinyl alcohol (PVA) gel pellets in a bubble column bioreactor. The bacteria was acclimatized to 2, 4 DCP with concentrations of up to 200 mg/l, with and without the addition of glucose. After the acclimatization, experiments were carried out with initial 2, 4 DCP concentrations ranging from 25 to 100 mg/l. In the course of the study, a phenomenon was noticed that can be related to the effect of carbon starvation on the biodegradation ability of the bacterial cells. This paper presents the results on this phenomenon. Starved cells showed higher growth and degradation rates.

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Section: Introductionmentioning

confidence: 99%

Transient Behavior in Biodegradation of 2, 4 Dichlorophenol: Is It a Starvation Effect?

Al-Khalid¹,

El‐Naas²

2013

IJCEA

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“…The same type of experiments for a biodegradation of aromatic compounds mixtures has been carried out with different prokaryotes [9,13,20]. Recently, Yan et al [23] reported results obtained by cultivating of a yeast strain of C. tropicalis in phenol/mcresol mixture. They observed an intensive inhibition of the phenol degradation caused by m-cresol presence.…”

Section: Resultsmentioning

confidence: 99%

“…They demonstrate that the simple models do not accurately predict the outcome of these biodegradation experiments, and describe the development of a new model for substrate mixtures, the sum kinetics with interaction parameter (SKIP) model. Recently, the biodegradation behaviour of Candida tropicalis in dual-substrate system has been described by kinetic equations adapted to fit the investigated process [23].…”

Section: Introductionmentioning

confidence: 99%

Phenol and cresol mixture degradation by the yeast Trichosporon cutaneum

Alexieva

Gerginova

Manasiev

et al. 2008

J Ind Microbiol Biotechnol

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Most industrial wastes contain different organic mixtures, making important the investigation on the microbial destruction of composite substrates. The capability of microbes to remove harmful chemicals from polluted environments strongly depends on the presence of other carbon and energy substrates. The effect of mixtures of phenol- and methyl-substituted phenols (o-, m-, p-cresol) on the growth behaviour and degradation capacity of Trichosporon cutaneum strain was investigated. The cell-free supernatants were analysed by HPLC. It was established that the presence of o-, m- and p- cresol has not prevented complete phenol assimilation but had significant delaying effect on the phenol degradation dynamics. The mutual influence of phenol and p-cresol was investigated. We developed the kinetic model on the basis of Haldane kinetics, which used model parameters from single-substrate experiments to predict the outcome of the two-substrate mixture experiment. The interaction coefficients indicating the degree to which phenol affects the biodegradation of p-cresol and vice versa were estimated. Quantitative estimation of interaction parameters is essential to facilitate the application of single or mixed cultures to the bio-treatment of hazardous compounds.

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“…Phenol can also be released into the environment due to spillage or leaks from hazardous waste dumps. Phenol is resistant to degradation in the environment and considered a serious pollutant 2 and therefore it is included in the list of priority organic pollutants prepared by the USEPA 3 . Once released into the environment, due to its chemical properties phenol does not adhere to soil, and thus moves through the soil matrix and into groundwater 4 .…”

Section: Phenol Is a Key Pollutant In Contaminated Industrial Wastewatermentioning

confidence: 99%

Bioaugmentation: an effective commercial technology for the removal of phenols from wastewater

et al. 2017

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Phenol represents a huge problem in industrial wastewater effluents and needs to be removed due to its toxic and carcinogenic nature. The removal of phenol from the wastewater is often both expensive and time consuming; there is therefore a requirement for a more effective, sustainable solution for the removal of phenol from wastewaters.Bioaugmentation or the addition of phenol degrading microorganisms to contaminated effluents is one such sustainable approach being considered. Here, we describe how bioaugmentation has been applied for the biological treatment of phenol in industrial wastewaters.

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Phenol biodegradation by the yeast Candida tropicalis in the presence of m-cresol

Cited by 133 publications

References 23 publications

Transient Behavior in Biodegradation of 2, 4 Dichlorophenol: Is It a Starvation Effect?

Transient Behavior in Biodegradation of 2, 4 Dichlorophenol: Is It a Starvation Effect?

Phenol and cresol mixture degradation by the yeast Trichosporon cutaneum

Bioaugmentation: an effective commercial technology for the removal of phenols from wastewater

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