Bioprocess Engineering Aspects of Biopolymer Production by the Cyanobacterium Spirulina Strain LEB 18

Figure 2

Growth curves for LEB 18 in modified Zarrouk media containing a reduced level of nitrogen (0.25 g L⁻¹ NaNO₃) and NaHCO₃ at the following concentrations: 8.4 g L⁻¹ (+), 16.8 g L⁻¹ (■), and 25.2 g L⁻¹ (●). Results are also shown for unmodified Zarrouk medium containing 0.25 g L⁻¹ NaNO₃ and 16.8 g L⁻¹ NaHCO₃ (▲).