Enhancing the biodegradation efficiency of a emergent refractory water pollutant by a bacterial isolate through a statistical process optimization approach
| Autor: | Gabriela Bahrim, Andrei Ionut Simion, Christophe Vial, Claudia Veronica Ungureanu, Lidia Favier |
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| Přispěvatelé: | Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Dunărea de Jos University of Galați [Romania], University of Bacău Vasile Alecsandri, Institut Pascal (IP), Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), This work was only funded by the institutions of the authors without any other financial support., Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2021 |
| Předmět: |
Environmental Engineering
General Chemical Engineering 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences 01 natural sciences Streptomyces chemistry.chemical_compound Response surface methodology [CHIM]Chemical Sciences Environmental Chemistry Safety Risk Reliability and Quality 0105 earth and related environmental sciences Pollutant 021110 strategic defence & security studies Clofibric acid biology Plackett–Burman design Strain (chemistry) Plackett-Burman design Biodegradation biology.organism_classification Pulp and paper industry 6. Clean water chemistry Sewage treatment |
| Zdroj: | Process Safety and Environmental Protection Process Safety and Environmental Protection, Elsevier, 2021, 148, pp.1133-1145. ⟨10.1016/j.psep.2021.02.012⟩ Process Safety and Environmental Protection, 2021, 148, pp.1133-1145. ⟨10.1016/j.psep.2021.02.012⟩ |
| ISSN: | 0957-5820 |
| DOI: | 10.1016/j.psep.2021.02.012 |
| Popis: | International audience; Clofibric acid, the main pharmacologically-active metabolite of pharmaceutical products used as antilipaemic agent has received, in last years, an increased interest because of its well-known recalcitrance to biodegradation and its high persistence in the aquatic environment. This molecule passes unchanged or poorly transformed in wastewater treatment plants. An indigenous strain of Streptomyces, named MIUG 4.89 was previously selected, exhibited the ability to favor clofibric acid biodegradation within submerged cultivation in controlled biotechnological conditions. Thus, in order to enhance the biodegradation of this refractory molecule, mathematical modeling and statistical optimization designs associated to Plackett-Burman Design and Response Surface Methodology were used to evaluate and optimize the effects of different major culture conditions of this bacterial isolate. According to the results, under optimized culture conditions (5 g L−1 glucose, inoculation level 4.7 %, 27.5 °C and 20 days of incubation) the strain Streptomyces MIUG 4.89 exhibited a successful removal of clofibric acid with a biodegradation yield of 54 %, which is in agreement with model prediction. Thus, under optimized conditions, the removal yield was enhanced, which is very promising accounting for the refractory character of this water pollutant. |
| Databáze: | OpenAIRE |
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