Excess CO2 supply inhibits mixotrophic growth of Chlorella protothecoides and Nannochloropsis salina

Integration of Chlorella protothecoides production in wastewater treatment plant: From lab measurements to process design

“…On the other hand, the CO 2 bubbling could affect the COD uptake, by shifting the metabolism of C. protothecoides to autotrophic metabolism only [21,41]. In this case, even if the absence of light during night should induce mixotrophic capability, the continuous CO 2 bubbling stimulates only the autotrophic metabolism, and probably inhibits the respiration in the dark, as observed also by Sforza et al [42]. Concerning the COD measurements carried out in the continuous reactor (see Fig.…”

Control of nitrogen behaviour by phosphate concentration during microalgal-bacterial cultivation using digestate

“…Other authors found similar growth rates of either Chlorella or Scenedesmus in livestock manure between 0.312 and 1.2 d À1 (Travieso et al, 2004(Travieso et al, , 2006Kumar et al, 2010;Wang et al, 2012). Due to the initial colour, the specific growth rate is less than those which can be obtained from other studies on synthetic media and which can vary from 1 to 3 d À1 (Garcia Sánchez et al, 1996;Kitaya et al, 2005;Sforza et al, 2012). The increase of total suspended solids concentration during the experiments is due to biomass growth, including microalgae as well as bacteria.…”

The Response of Nannochloropsis gaditana to Nitrogen Starvation Includes De Novo Biosynthesis of Triacylglycerols, a Decrease of Chloroplast Galactolipids, and Reorganization of the Photosynthetic Apparatus

“…These conditions were chosen because they are representative of the conditions experienced by Nannochloropsis in its natural environment, although growth can largely be increased by providing excess nutrients and CO 2 (46). It is possible, however, that the influence of the nitrogen supply on growth rates is different under other conditions.…”