Operation Regimes: A Comparison Based on Nannochloropsis oceanica Biomass and Lipid Productivity

Microalgae are currently considered to be a promising feedstock for biodiesel production. However, significant research efforts crucial improve the current biomass and lipid productivities under real outdoor production conditions. In this context, batch, continuous semi-continuous operation regimes were compared during Spring/Summer seasons in 2.6 m3 tubular photobioreactors select most suitable one of oleaginous microalga Nannochloropsis oceanica. Results obtained revealed that N. oceanica grown using enabled 1.5-fold increase volumetric productivity cultivated batch. The was 1.7-fold higher cultivation than batch regime. On other hand, spent nearly double amount water Interestingly, biochemical profile produced different not affected regarding contents proteins, lipids fatty acids. Overall, these results show regime is more oceanica, significantly improving at large-scale, which factor