FIG. 3.

OPH production in high-cell-density fermentation of R. eutropha. (A) The dry cell weight, real biomass, PHB, and glucose feeding profile for a typical high-cell-density fermentation. The arrow indicates the time of induction. Symbols: open circles, total dry cell weight; closed triangles, real biomass; crosses, PHB; closed squares, glucose consumed. (B) The oxygen uptake rate (OUR), the carbon dioxide evolution rate (CER), the phosphate concentration in the reactor, and the specific activity of OPH produced. Symbols: open squares, OUR; open triangles, CER; closed diamonds, phosphate concentration; closed circles; specific activity.