Two different fed-batch fermentations were carried out to
study the possibilities of the strain B. megaterium uyuni
S29 of producing and accumulating PHB. Table 1 sum-
marizes the main results obtained from both fed-batch
fermentations. Comparing the results of both assays,
higher specific growth rate (lmax) and final CDM were obtained in the growth curve of the bioreactor experi-
ment, while the sugar conversion was higher for the
shaking flasks assay as a result of the higher polymer
accumulation.