Cultivation of E. coli carrying a plasmid-based Measles vaccine construct (4.2 kbp pcDNA3F) employing medium optimisation and pH-temperature induction techniques
2011

Improving E. coli Production of Measles Vaccine Plasmid

publication Evidence: moderate

Author Information

Author(s): Ongkudon Clarence M, Pickering Raelene, Webster Diane, Danquah Michael K

Primary Institution: Monash University

Hypothesis

Can medium optimisation and pH-temperature induction techniques improve the yield of a plasmid-based measles vaccine in E. coli?

Conclusion

The study successfully improved the production of a plasmid-based measles vaccine in E. coli through medium optimisation and controlled fermentation techniques.

Supporting Evidence

  • The volumetric yield of the plasmid increased from 7.80 mg/L to 13.65 mg/L after medium optimisation.
  • A specific yield of 14 mg/g was achieved through controlled fermentation techniques.
  • Temperature fluctuations between 35 and 45°C improved plasmid production.

Takeaway

Scientists figured out how to grow more of a special vaccine in bacteria by changing the food and temperature they use.

Methodology

The study used response surface methodology for medium optimisation and controlled fed-batch fermentation with glycerol feeding.

Limitations

The study did not explore the long-term stability of the plasmid yields or the effects of different bacterial strains.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1475-2859-10-16

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