when pH is controlled at 7.0 but the dissolved oxygen concentration
is not constant. Nevertheless, an increase in about 25% of
the PHB production is reached when both pH and oxygen saturation
are kept constant (7.0 and 80%, respectively) compared with
the uncontrolled scenario. Hence, these results show the capability
of B. megaterium to produce PHB at similar yields and productivities
using both a common substrate as glucose and an important
industrial waste like glycerol.