Effect of oxygen on the rate of β-1,3-glucan microbial exopolysaccharide production

@article{Lawford2005EffectOO,
  title={Effect of oxygen on the rate of β-1,3-glucan microbial exopolysaccharide production},
  author={Hugh G. Lawford and Joyce D. Rousseau},
  journal={Biotechnology Letters},
  year={2005},
  volume={11},
  pages={125-130}
}
Examination of the relationship between the rate of oxygen transfer and the rate of polymer production revealed an unexpectedly high requirement for oxygen. At a cell density of about 3 g (dry wt)/L, the threshhold value for OTR for optimal synthesis of polymer is about 50 mmoles O2/L.hr. Whereas Rushton turbines are effecient at transfering oxygen to solution, their use reduces the quality of the recovered polymer. Although better quality polymer can be produced in a reactor employing an… CONTINUE READING