Fig. 4From: A kinetic metabolic study of lipid production in Chlorella protothecoides under heterotrophic conditionFlux distribution under heterotrophic cultivation at exponential phase (48 h) and lipid peak time point (72 h). All the flux values were normalized to an uptake flux of 100 mmol g−1DW h−1 glucose. Red arrows represents the flux direction for the four reversible reactionsBack to article page