Biodegradation of Ammonium Ions and Formate During Ammonium Formate Metabolism by Yarrowia lipolytica and Pichia guilliermondii in a Batch Reactor
| Autor: | M. Heran, B. Mohammadou, G. J. Kayem, G. P. Kofa, M. N. Nsoe, K. S. Ndi |
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| Přispěvatelé: | Institut Européen des membranes (IEM), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Institut Européen des membranes ( IEM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Supérieure de Chimie de Montpellier ( ENSCM ) -Université Montpellier 2 - Sciences et Techniques ( UM2 ) -Université de Montpellier ( UM ) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Yarrowia lipolytica
Environmental Engineering Batch reactor Rubber wastewater 02 engineering and technology 010501 environmental sciences 01 natural sciences [ CHIM ] Chemical Sciences Article chemistry.chemical_compound 020401 chemical engineering Ammonium formate Environmental Chemistry [CHIM]Chemical Sciences Ammonium Formate 0204 chemical engineering Pichia guilliermondii 0105 earth and related environmental sciences Water Science and Technology Pichia biology Ecological Modeling Yarrowia Biodegradation Inhibitor substrat biology.organism_classification Pollution chemistry 13. Climate action Nuclear chemistry |
| Zdroj: | Water, Air, and Soil Pollution Water, Air, and Soil Pollution, Springer Verlag, 2018, 229 (5), ⟨10.1007/s11270-018-3795-0⟩ Water, Air, and Soil Pollution, Springer Verlag, 2018, 229 (5), 〈10.1007/s11270-018-3795-0〉 |
| ISSN: | 0049-6979 1573-2932 |
| DOI: | 10.1007/s11270-018-3795-0⟩ |
| Popis: | International audience; The use of microorganisms for the biodegradation of pollutants is increasingly being studied. But at high concentrations, these pollutants become rather inhibitors for the metabolism of microorganisms. In this study, the biodegradation of ammonium formate at various concentrations (1.59-7.94 mM) by Yarrowia Lipolytica and Pichia guilliermondii isolated from the rubber effluent is studied by following the variation of ammonium ions and formate. A fitting of eight models of substrate inhibition was performed and the parameters were determined by nonlinear regression using MATLAB 8.5 A (c). The R (2) and the RSME allow to choose the best model. The results show that ammonium ions (3.17 mM ammonium formate) are used as substrate; no inhibition is observed. But beyond this concentration, the inhibition effect begins to be observed with the specific rates of ammonium biodegradation which decrease. Formate monitoring reveals that is used as the main source of energy and does not inhibit the growth of yeasts. The models of Luong and Webb seem to be more appropriate for predicting the observed phenomena of inhibition. For Yarrowia lipolytica, R (2) = 0.958 and 0.998 with RSME = 0.005342 and 0.003433, for Pichia guillermondii, R (2) = 0.999 and 0.992 with RSME = 0.0005121 and 0.001212. |
| Databáze: | OpenAIRE |
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