"Production of lipids by microalgae: variety and influence of the conditions of culture."
Interdisciplinary Energy CNRS program, 2009 , financing for a duration of 3 years.
Coordinator: Jérémy pruvost (GEPEA)
Microalgae present a high potential for the production of biofuel via their large-scale production. This bioresource is however characterized by its big variety, the number of species being estimated at several
hundreds of thousands.
So, even if some of these microsalgae are envisaged as new source of lipids because they have a upper production to the oleaginous plants today, synthetized lipids can be of diverse nature, classes of synthetized lipids, composition in fatty acids.
The objective of this project is on one hand to investigate the biodiversity of the accumulation of lipids by being interested more specifically in the Chlamydomonas and on the other hand to optimize the
production of lipids on species of interest which will have been selected among fresh water and sea water algae.
We will follow the changes in the lipid profiles (distribution by classes of lipids) according to conditions of culture. Triglycerides (TAG) with bioenergy vocation will be considered first and we will try to optimize their production in photobioreactor as well as their extraction downstream.
The composition in fatty acids of the various classes of lipids (glycolipids, phospholipids, triglycerids) will be analyzed. This complete characterization of the lipid profiles of diverse microalgae subjected to variable conditions of culture will allow to envisage new ways of valuation of the biomass.