Substrate interactions during the biodegradation of BTEX and THF mixtures by Pseudomonas oleovorans DT4

Zhou, Yuyang; Chen, Dongzhi; Zhu, Rongshu; Chen, Jianmeng

doi:10.1016/j.biortech.2011.03.076

Cited by 45 publications

(15 citation statements)

References 34 publications

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“…Bioremediation of BTEX-contaminated soils and groundwater by bacteria has received great attention in recent years [1,2,5]. Bacteria can degrade a variety of hydrocarbons, including monoaromatic compounds, under aerobic and anaerobic conditions [6][7][8]. Although there is considerable research on BTEX degradation by bacteria, most studies have focused on the degradation of single or binary components by isolated bacteria.…”

Section: Introductionmentioning

confidence: 99%

Biodegradation of BTEX mixture by Pseudomonas putidaYNS1 isolated from oil‐contaminated soil

et al. 2012

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The presence of mixed contaminants, such as BTEX (benzene, toluene, ethylbenzene and xylene isomers) can affect the biodegradation, fate and environmental impacts of each compound. To understand the influence of interactions among BTEX compounds on their biodegradation, four bacteria were isolated from oil-contaminated soil and assayed for BTEX biodegradation in vitro. The isolate exhibiting maximum biodegradation was identified as Pseudomonas putida based on the 16S rDNA sequence. The biodegradation of the BTEX compounds was greatly influenced by pH, temperature, and salinity. Substrate mixture studies (binary, tertiary and quaternary) revealed that the presence of toluene increased the biodegradation rate of benzene, ethylbenzene, and xylene.

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Section: Introductionmentioning

confidence: 99%

Biodegradation of BTEX mixture by Pseudomonas putidaYNS1 isolated from oil‐contaminated soil

et al. 2012

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“…Sometimes in a mixture of pollutants, one substrate influences the degradation of the other. A case study involving benzene, toluene, ethylbenzene and xylene (BTEX) and tetrahydrofuran (THF) revealed substrate interaction effect, as THF assisted biodegradation of BTEX, but BTEX negatively impacted biodegradation of THF [57].…”

Section: Substrates and Intermediates Influencing The Community Dynamicsmentioning

confidence: 99%

Integrated Perspective for Effective Bioremediation

Paliwal

Puranik

Purohit

2011

Appl Biochem Biotechnol

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Identification of factors which can influence the natural attenuation process with available microbial genetic capacities can support the bioremediation which has been viewed as the safest procedure to combat with anthropogenic compounds in ecosystems. With the advent of molecular techniques, assimilatory capacity of an ecosystem can be defined with changing community dynamics, and if required, the essential genetic potential can be met through bioaugmentation. At the same time, intensification of microbial processes with nutrient balancing, expressing and enhancing the degradative capacities, could reduce the time frame of restoration of the ecosystem. The new concept of ecosystems biology has added greatly to conceptualize the networking of the evolving microbiota of the niche that helps in effective application of bioremediation tools to manage pollutants as additional carbon source.

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“…The microbial growth on the substrate mixture is a key subject of studies in the field of bioremediation and effluent treatment. However, limited studies have been conducted on the effects of co-contaminants on the degradation of tetrahydrofuran [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Biodegradation Kinetics of Tetrahydrofuran, Benzene, Toluene, and Ethylbenzene as Multi-substrate by Pseudomonas oleovorans DT4

Chen

Ding

Zhou

et al. 2014

IJERPH

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The biodegradation kinetics of tetrahydrofuran, benzene (B), toluene (T), and ethylbenzene (E) were systematically investigated individually and as mixtures by a series of aerobic batch degradation experiments initiated by Pseudomonas oleovorans DT4. The Andrews model parameters, e.g., maximum specific growth rates (μmax), half saturation, and substrate inhibition constant, were obtained from single-substrate experiments. The interaction parameters in the sum kinetics model (SKIP) were obtained from the dual substrates. The μmax value of 1.01 for tetrahydrofuran indicated that cell growth using tetrahydrofuran as carbon source was faster than the growth on B (μmax, B = 0.39) or T (μmax, T = 0.39). The interactions in the dual-substrate experiments, including genhancement, inhibition, and co-metabolism, in the mixtures of tetrahydrofuran with B or T or E were identified. The degradation of the four compounds existing simultaneously could be predicted by the combination of SKIP and co-metabolism models. This study is the first to quantify the interactions between tetrahydrofuran and BTE.

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Substrate interactions during the biodegradation of BTEX and THF mixtures by Pseudomonas oleovorans DT4

Cited by 45 publications

References 34 publications

Biodegradation of BTEX mixture by Pseudomonas putidaYNS1 isolated from oil‐contaminated soil

Biodegradation of BTEX mixture by Pseudomonas putidaYNS1 isolated from oil‐contaminated soil

Integrated Perspective for Effective Bioremediation

Biodegradation Kinetics of Tetrahydrofuran, Benzene, Toluene, and Ethylbenzene as Multi-substrate by Pseudomonas oleovorans DT4

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