Figure 3

Conversion efficiency (CE) of acetate to PHB in the two-stage cultures of C. fritschii.
Sixteen-d photoautotrophy-grown cells were transferred to the heterotrophic -N-P medium in the dark up to 10 d with an initial acetate (ACT) concentration of 0.05% or 0.1% (w/v). The residual available ACT level in the culture medium and CE of acetate to PHB was determined at the indicated time points. Data are the average ± 1 SD from six independent cultures.