key parameters in the optimization of PHB content and production.
Interestingly, it can be seen from Table 3 that in spite of the varied
initial sugar concentration, PHB yield almost remained constant
(about 0.21 g/g), which is consistent to those obtained at the optimal
C/N ratio (15:3) listed in Table 2, suggesting that C/N ratio is
the key parameter that determines the PHB yield.