Bioreactor BBraun with a working volume of 3000 mL
were filled with 950mL of mineral medium adding fatty acids
(1% v/v) as carbon source. The bioreactor was sterilized by
autoclaving at 121 0C for 20 min. A pre-inoculum was
cultivated in 50 mL LB medium overnight at 30 0C. The
bioreactor temperature was maintained at 30 0C and pH 7,
aerated at 300 rev.min-1 with 2 vvm O2 injected into the
system. Every 12 hours during the experiment 10mL of
culture was centrifuged at 4.500 rpm, dry mass PHA content
and residual biomass were determined. All the assays were
done in duplicate.