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Article Dans Une Revue Bioresource Technology Année : 2011

Systematic investigation of biomass and lipid productivity by microalgae in photobioreactors for biodiesel application

Résumé

We describe a methodology to investigate the potential of given microalgae species for biodiesel production by characterizing their productivity in terms of both biomass and lipids. A multi-step approach was used: determination of biological needs for macronutrients (nitrate, phosphate and sulphate), determination of maximum biomass productivity (the ''light-limited" regime), scaling-up of biomass production in photobioreactors, including a theoretical framework to predict corresponding productivities, and investigation of how nitrate starvation protocol affects cell biochemical composition and triggers triacylglyc-erol (TAG) accumulation. The methodology was applied to two freshwater strains, Chlorella vulgaris and Neochloris oleoabundans, and one seawater diatom strain, Cylindrotheca closterium. The highest total lipid content was achieved with N. oleoabundans (25-37% of DW), while the highest TAG content was found in C. vulgaris (11-14% of DW). These two species showed similar TAG productivities.
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Dates et versions

hal-02534161 , version 1 (17-04-2020)

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Jeremy Pruvost, G. van Vooren, B. Le Gouic, A. Couzinet-Mossion, J. Legrand. Systematic investigation of biomass and lipid productivity by microalgae in photobioreactors for biodiesel application. Bioresource Technology, 2011, 102 (1), pp.150-158. ⟨10.1016/j.biortech.2010.06.153⟩. ⟨hal-02534161⟩
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