1. Modelling Tetraselmis sp. growth-kinetics and optimizing bioactive-compound production through environmental conditions
- Author
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Bilel Hadrich, Imen Fendri, Chantal Pichon, Faiez Hentati, Mohamed Barkallah, Philippe Michaud, Mouna Dammak, Michel Denis, Slim Abdelkafi, Hajer Ben Hlima, Frapart, Isabelle, Unité de Biotechnologie des Algues, Biological Engineering Department, National School of Engineers of Sfax, Université de Sfax - University of Sfax, École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Institut Pascal (IP), SIGMA Clermont (SIGMA Clermont)-Université Clermont Auvergne [2017-2020] (UCA [2017-2020])-Centre National de la Recherche Scientifique (CNRS), Centre de biophysique moléculaire (CBM), Université d'Orléans (UO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Service de Maladies infectieuses et tropicales [CHU Tenon], CHU Tenon [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Université d'Orléans (UO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Service des maladies infectieuses et tropicales [CHU Tenon], Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Toxicology-Microbiology and Environmental Health Unit (UR11ES70), Faculty of Sciences, Université d'Orléans (UO)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Institut Pascal - Clermont Auvergne ( IP ), Sigma CLERMONT ( Sigma CLERMONT ) -Université Clermont Auvergne ( UCA ) -Centre National de la Recherche Scientifique ( CNRS ), Université de Sfax, Centre de biophysique moléculaire ( CBM ), Université d'Orléans ( UO ) -Institut National de la Santé et de la Recherche Médicale ( INSERM ) -Centre National de la Recherche Scientifique ( CNRS ), Institut méditerranéen d'océanologie ( MIO ), Institut de Recherche pour le Développement ( IRD ) -Aix Marseille Université ( AMU ) -Université de Toulon ( UTLN ) -Centre National de la Recherche Scientifique ( CNRS ), National School of Engineers of Sfax, Service des Maladies Infectieuses et Tropicales [CHU Tenon], CHU Tenon [APHP], and Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université
- Subjects
Chlorophyll ,0106 biological sciences ,[SDV.BIO]Life Sciences [q-bio]/Biotechnology ,Light ,Starch ,[ SDV.AEN ] Life Sciences [q-bio]/Food and Nutrition ,[SDV]Life Sciences [q-bio] ,[SDV.BC.BC]Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC] ,010501 environmental sciences ,01 natural sciences ,chemistry.chemical_compound ,[ SDV.BBM.BC ] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biomolecules [q-bio.BM] ,[CHIM.GENI]Chemical Sciences/Chemical engineering ,Optimal culture conditions ,Chlorophyta ,[SDV.BC.IC]Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB] ,[SDV.IDA]Life Sciences [q-bio]/Food engineering ,Microalgae ,[ CHIM.GENI ] Chemical Sciences/Chemical engineering ,Waste Management and Disposal ,Carotenoid ,ComputingMilieux_MISCELLANEOUS ,chemistry.chemical_classification ,biology ,[CHIM.ORGA]Chemical Sciences/Organic chemistry ,[ SDV.IDA ] Life Sciences [q-bio]/Food engineering ,[CHIM.MATE]Chemical Sciences/Material chemistry ,General Medicine ,Chlorophylls ,Bioactive compound ,[SDV.BBM.BC]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biomolecules [q-bio.BM] ,[SDV.BBM.BP]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biophysics ,[SDV] Life Sciences [q-bio] ,[SDV.BBM.BS]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biomolecules [q-bio.BM] ,[ SDV.BBM.BP ] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biophysics ,Environmental Engineering ,Bioengineering ,[ SDV.BBM.BM ] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,[ SDV.BC.IC ] Life Sciences [q-bio]/Cellular Biology/Cell Behavior [q-bio.CB] ,[ CHIM.ORGA ] Chemical Sciences/Organic chemistry ,[CHIM.ANAL]Chemical Sciences/Analytical chemistry ,010608 biotechnology ,Tetraselmis ,0105 earth and related environmental sciences ,Chromatography ,Renewable Energy, Sustainability and the Environment ,[ SDV.BC.BC ] Life Sciences [q-bio]/Cellular Biology/Subcellular Processes [q-bio.SC] ,[ SDV.BIO ] Life Sciences [q-bio]/Biotechnology ,[SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology ,biology.organism_classification ,Carotenoids ,[ CHIM.POLY ] Chemical Sciences/Polymers ,Salinity ,Kinetics ,Light intensity ,[CHIM.POLY]Chemical Sciences/Polymers ,chemistry ,[ CHIM.MATE ] Chemical Sciences/Material chemistry ,Gravimetric analysis ,[ CHIM.ANAL ] Chemical Sciences/Analytical chemistry ,[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition ,[ SDV.BBM.BS ] Life Sciences [q-bio]/Biochemistry, Molecular Biology/Biomolecules [q-bio.BM] - Abstract
International audience; The aim of this study is to predict Tetraselmis cells growth-kinetic and to induce the synthesis of bioactive compounds (chlorophylls, carotenoids and starch) with high potential for biotechnological applications. Using the statistical criteria, the Baranyi-Roberts model has been selected to estimate the microalgae growth-kinetic values. The simultaneous effects of salinity, light intensity and pH of culture medium were investigated to maximize the production of total chlorophylls, carotenoids and starch. The optimal culture conditions for the production of these compounds were found using Box-Behnken Design. Results have shown that total chlorophyll and carotenoids were attained 21.6mg·g-1DW and 0.042mg·g-1DW, respectively. In addition, the highest starch content of 0.624g·g-1DW has been obtained at neutral pH with high irradiance (182μmolphotonsm-2 s-1) and low salinity (20). A highly correlation (R2 = 0.884) has been found between the gravimetric and flow cytometric measurements of chlorophyll content.
- Published
- 2018
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