FIG. 2.

Kinetics of formation of trans-carveol from d-limonene by washed, chemostat-grown cells of R. opacus PWD4 (5 ml, 1.1 g [dry weight] liter⁻¹) in a closed headspace vial in the absence (■) and presence (⧫) of toluene. The experiment was done in a closed headspace vial with a total volume of 43 ml, implying that 68% of the toluene was in the gaseous phase and that the toluene consumption rate is actually 3.1-fold higher than suggested by the curve. aq., aqueous.