Figure 3

Cultivation of R. eutropha PHB- 4 expressing phaC1 Ps (open triangle) and the leucine analog resistant strain 1F2 (closed square) in the presence of various concentration of L-leucine (0-15 g/L) and fructose (20 g/L). (a) 3H4MV fraction in PHA copolymers, (b) PHA contents in the cells, (c) residual biomass (obtained by subtracting PHA weight from dry cell weight).