Substrate interactions between 4-nitrophenol and 4- nitrotoluene during biodegradation of their mixture

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F16%3A43899398" target="_blank" >RIV/60461373:22330/16:43899398 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/16:00089093
Result on the web
<a href="http://dx.doi.org/10.1080/19443994.2015.1071285" target="_blank" >http://dx.doi.org/10.1080/19443994.2015.1071285</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/19443994.2015.1071285" target="_blank" >10.1080/19443994.2015.1071285</a>

Result language
angličtina
Original language name
Substrate interactions between 4-nitrophenol and 4- nitrotoluene during biodegradation of their mixture
Original language description
Nitroaromatic compounds are toxic and rather recalcitrant pollutants of water and soil. Microbial degradation of the individual nitroaromatic compounds has already been well described in the literature. However, because several compounds often occur in the environment mutually influencing each other's degradation, further research into the biodegradation of their mixtures is still needed. We investigated the degradation of a mixture of 4-nitrophenol (4-NP) and 4-nitrotoluene (4-NT) by a mixed microbial culture immobilized in a continuously operated packed-bed reactor (PBR) and by free suspended cells in shake flasks. Each compound was at first degraded separately, then in a mixture, and their degradation characteristics were compared. When treated separately, 4-NP and 4-NT were degraded with efficiency over 99 and 95%, respectively. When in a mixture, 4-NP was still completely removed from the media but the 4-NT removal efficiency dropped by a half and remained about the same during the whole experiment regardless the increasing 4-NP concentration at the PBR inlet. The shake flask experiments corroborated our finding that 4-NP negatively influenced 4-NT degradation by competitive inhibition and also indirectly on the adaptation level.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
EI - Biotechnology and bionics
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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