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

Figure 1

Growth curves for LEB 18 in modified Zarrouk media containing a reduced level of nitrogen (0.25 g L⁻¹ NaNO₃) and the following carbon sources: (a) 16.8 g L⁻¹ NaHCO₃ plus glucose, (b) 16.8 g L⁻¹ NaHCO₃ plus sodium acetate, (c) glucose, and (d) sodium acetate. The glucose and acetate concentrations used were 0.2 g L⁻¹ (+), 0.4 g L⁻¹ (■), and 0.6 g L⁻¹ (●).

(a)

(b)

(c)

(d)