(a) Night profile of the photobioreactor showing the light system. (b) Degassing chamber and its stainless steel cover which contains different ports and growth mentoring probes (e.g., pH meter, CO2 and O2 electrodes, temperature sensor, and sample collection port). (c) Light growth of the Arthrospira after the medium dilution. (d) Heavy growth of the Arthrospira at the end of the cultivation process. (e) Static cultivation of Arthrospira using sun light only.
