Abstract:
This research was to study increasing efficiency PHB production of Alcaligenes latus TISTR 1403/-2AA by induction and optimize growth and produce condition. Found that repeat induction with Ultraviolet and 2AA two time and then induce with acriflavin can gave that best growth and PHB production isolate, When adjust culture condition by using DSMZ calalogue that modified to using 30 g/l molasses 4 g/l corn steep liquor and 2.5 potassium dihydrogen phosphate are the best condition can produce cell mass and PHB to 15.62±0.00 and 9.73±0.06 g/l, respectively. And when upscale to fermentor with batch and fed-batch cultivation can increasing PHB production to11.83±0.29 and 32.20±0.10 g/l, respectively.