title: Effect of specific light supply rate on photosynthetic efficiency of Nannochloropsis salina in a continuous flat plate photobioreactor.
abstract: In this work, Nannochloropsis salina was cultivated in a continuous-flow flat-plate photobioreactor, working at different residence times and irradiations to study the effect of the specific light supply rate on biomass productivity and photosynthetic efficiency. Changes in residence times lead to different steady-state cell concentrations and specific growth rates. We observed that cultures at steady concentration were exposed to different values of light intensity per cell. This specific light supply rate was shown to affect the photosynthetic status of the cells, monitored by fluorescence measurements. High specific light supply rate can lead to saturation and photoinhibition phenomena if the biomass concentration is not optimized for the selected operating conditions. Energy balances were applied to quantify the biomass growth yield and maintenance requirements in N. salina cells.
authors.affiliation: Department of Industrial Engineering DII, University of Padova, Via Marzolo 9, 35131, Padova, Italy, eleonora.sforza@unipd.it.
authors.forename: Eleonora
authors.initials: E
authors.lastname: Sforza
authors.forename: Claudio
authors.initials: C
authors.lastname: Calvaruso
authors.forename: Andrea
authors.initials: A
authors.lastname: Meneghesso
authors.forename: Tomas
authors.initials: T
authors.lastname: Morosinotto
authors.forename: Alberto
authors.initials: A
authors.lastname: Bertucco
mesh_terms: D018533:Biomass; D004734:Energy Metabolism / Q000528:radiation effects; D007700:Kinetics; D008027:Light; D058433:Photobioreactors; D010788:Photosynthesis / Q000528:radiation effects*; D058009:Stramenopiles / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism* / Q000528:radiation effects*