Toxicity and batch biodegradation kinetics of 2,4 dichlorophenol by pure Pseudomonas putida culture

Kargı, Fikret; Eker, Serkan

doi:10.1016/j.enzmictec.2004.06.004

Cited by 40 publications

(18 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, numerous bacterial and fungal strains have also been reported to utilize 2,4-DCP as the sole carbon and energy source, such as Achromobacter sp., Aeromonas sp., Bacillus insolitus, Pseudomonas sp., Streptomyces viridosporus, Flavimonas oryzihabitans, Chryseomonas luteola, Aspergillus penicilloides, Mortierella isabelina, Chrysosporium pannorum and Mucor genevensis [34][35][36][37][38][39]. Some of these studies showed that high concentrations of 2,4-DCP were found to increase the duration of the lag phase and decrease the rate of biodegradation.…”

Section: Degradation Of 24-d and 24-dcp In Mineral Salt Mediummentioning

confidence: 99%

Biodegradation kinetics of 2,4-D by bacterial strains isolated from soil

2011

View full text Add to dashboard Cite

The aim of the study was to characterize the 2,4-dichlorophenoxyacetic acid (2,4-D) degradative potential of three bacterial strains identified by MIDI-FAME profiling as Burkholderia cepacia (DS-1), Pseudomonas sp. (DS-2) and Sphingomonas paucimobilis (DS-3) isolated from soil with herbicide treatment history. All strains were capable of using herbicide as the only source of carbon and energy when grown in mineral salt medium (MSM) containing 2,4-D (50 mg/l). Over a 10 day incubation period, 69%, 73% and 54% of the initial dose of 2,4-D were degraded by strains DS-1, DS-2 and DS-3, respectively. Analysis of 2,4-dichlorophenol (2,4-DCP) concentration, the main metabolite of 2,4-D degradation, revealed that strains DS-1 and DS-2 may also have the potential to metabolize this compound. The percentage of 2,4-DCP removal was 67% and 77% in relation to maximum values of 9.5 and 9.2 mg/l determined after 4 and 2 days for MSM+DS-1 and MSM+DS-2, respectively. The degradation kinetics of 2,4-D (50 mg/kg) in sterile soil (SS) showed different potential of tested strains to degrade 2,4-D. The times within which the initial 2,4-D concentration was reduced by 50% (DT50) were 6.3, 5.0 and 9.4 days for SS+DS-1, SS+DS-2 and SS+DS-3, respectively.

show abstract

Section: Degradation Of 24-d and 24-dcp In Mineral Salt Mediummentioning

confidence: 99%

Biodegradation kinetics of 2,4-D by bacterial strains isolated from soil

2011

View full text Add to dashboard Cite

show abstract

“…Biological processes used for treatment of chlorophenol containing wastewaters operate under mild conditions, result in complete mineralization of chlorophenols and are relatively inexpensive as compared to physical and chemical treatment methods. Different bacteria and fungi were used for biodegradation of chlorophenols in suspended pure culture studies (Dapaah and Hill, 1992;Fahr et al, 1999;Farrell and Quilty, 2002;Hill et al, 1996;Kim and Hao, 1999;Li et al, 1991;Steinle et al, 1998;Wang et al, 2000;Wang and Loh, 1999;Yee and Wood, 1997;Kargi and Eker, 2004;Lima et al, 2004). In most of the studies, a carbohydrate substrate was used as the primary metabolite and the chlorophenols were used as cometabolites (Hill et al, 1996;Kim and Hao, 1999;Wang and Loh, 1999).…”

Section: Introductionmentioning

confidence: 98%

Para-chlorophenol containing synthetic wastewater treatment in an activated sludge unit: Effects of hydraulic residence time

Kargı

Konya

2007

Journal of Environmental Management

Self Cite

View full text Add to dashboard Cite

“…Most of the investigations on biodegradation of chlorophenols focused on suspended pure culture studies using different bacteria and fungi [6][7][8][9][10][11][12][13][14][15][16]. Usually, a carbohydrate substrate was used as the primary metabolite and the chlorophenols were used as cometabolites [9,10,14].…”

Section: Introductionmentioning

confidence: 99%