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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1007/s10646-021-02508-0
|2 doi
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|a pubmed24n1119.xml
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|a (DE-627)NLM335945538
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|a (NLM)35059927
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|a DE-627
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|a eng
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| 100 |
1 |
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|a Sahoo, Mitali Madhusmita
|e verfasserin
|4 aut
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|a Co-metabolic biodegradation of 4-bromophenol in a mixture of pollutants system by Arthrobacter chlorophenolicus A6
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 10.05.2022
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|a Date Revised 10.05.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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|a Brominated phenols are listed as priority pollutants together with nitrophenol and chlorophenol are the key components of paper pulp wastewater. However, the biodegradation of bromophenol in a mixed substrate system is very scanty. In the present investigation, simultaneous biodegradation kinetics of three substituted phenols 4-bromophenol (4-BP), 4-nitrophenol (4-NP), and 4-chlorophenol (4-CP) were investigated using Arthrobacter chlorophenolicus A6. A 23 full factorial design was applied with varying 4-BP and 4-CP from 75-125 mg/L and 4-NP from 50-100 mg/L. Almost complete degradation of this mixture of substituted phenols was achieved at initial concentration combinations of 125, 125, and 100 mg/L of 4-CP, 4-BP, and 4-NP, respectively, in 68 h. Statistical analysis of the results revealed that, among the three variables, 4-NP had the most prominent influence on the degradation of both 4-CP and 4-BP, while the concentration of 4-CP had a strong negative interaction effect on the biodegradation of 4-NP. Irrespective of the concentration levels of these three substrates, 4-NP was preferentially biodegraded over 4-CP and 4-BP. Furthermore, 4-BP biodegradation rates were found to be higher than those of 4-CP, followed by 4-NP. Besides, the variation of the biomass yield coefficient of the culture was investigated at different initial concentration combinations of these substituted phenols. Although the actinomycetes consumed 4-NP at a faster rate, the biomass yield was very poor. This revealed that the microbial cells were more stressed when grown on 4-NP compared to 4-BP and 4-CP. Overall, this study revealed the potential of A. chlorophenolicus A6 for the degradation of 4-BP in mixed substrate systems
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|a Journal Article
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|a 4-Bromophenol
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|a Arthrobacter chlorophenolicus A6
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|a Biomass yield
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|a Interaction effect
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|a Mixed substrate
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|a Statistical analysis
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|a Environmental Pollutants
|2 NLM
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|a Phenols
|2 NLM
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| 650 |
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|a 4-bromophenol
|2 NLM
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| 650 |
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|a LAO4J0183I
|2 NLM
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| 700 |
1 |
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|a Sahoo, Naresh Kumar
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Daverey, Achlesh
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Raut, Sangeeta
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Ecotoxicology (London, England)
|d 1992
|g 31(2022), 4 vom: 20. Mai, Seite 602-614
|w (DE-627)NLM098212214
|x 1573-3017
|7 nnns
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| 773 |
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|g volume:31
|g year:2022
|g number:4
|g day:20
|g month:05
|g pages:602-614
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|u http://dx.doi.org/10.1007/s10646-021-02508-0
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