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© Research
Publication : Biotechnology progress

Monitoring of recombinant protein production using bioluminescence in a semiautomated fermentation process

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Biotechnology progress - 01 Jul 2003

Trezzani I, Nadri M, Dorel C, Lejeune P, Bellalou J, Lieto J, Hammouri H, Longin R, Dhurjati P

Link to Pubmed [PMID] – 12892506

Biotechnol. Prog. 2003 Jul-Aug;19(4):1377-82

On-line optimization of fermentation processes can be greatly aided by the availability of information on the physiological state of the cell. The goal of our “BioLux” research project was to design a recombinant cell capable of intracellular monitoring of product synthesis and to use it as part of an automated fermentation system. A recombinant plasmid was constructed containing an inducible promoter that controls the gene coding for a model protein and the genes necessary for bioluminescence. The cells were cultured in microfermenters equipped with an on-line turbidity sensor and a specially designed on-line light sensor capable of continuous measurement of bioluminescence. Initial studies were done under simple culture conditions, and a linear correlation between luminescence and protein production was obtained. Such specially designed recombinant bioluminescent cells can potentially be applied for model-based inference of intracellular product formation, as well as for optimization and control of recombinant fermentation processes.

http://www.ncbi.nlm.nih.gov/pubmed/12892506