Fig. 5
Effects of fed-batch mode on the lipid fermentation performance of lignin by R. opacus PD630. a cell dry weight and lipid concentration. b lipid content and yield. c lignin concentration and weight loss. Fermentation conditions: OD1.0, 1.4-g/l (NH4)2SO4, pH 7.0, 30 °C, and 200 rpm. FB 1-C1 fed-batch mode 1 cycle 1, FB 2-C1 fed-batch mode 2 cycle 1