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    Home > Biochemistry News > Microbiology News > Rapid Strain Evaluation Using Dynamic DO-Stat Fed-Batch Fermentation Under Scale-Down Conditions

    Rapid Strain Evaluation Using Dynamic DO-Stat Fed-Batch Fermentation Under Scale-Down Conditions

    • Last Update: 2021-01-31
    • Source: Internet
    • Author: User
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    While large amount of strains can be quickly generated via metabolic engineering, the speed/efficiency of evaluating each strain becomes the bottleneck in the process from strain development to final production. In this chapter, a method is introduced to rapidly evaluate strain performance in fed-batch fermentation mode by using dynamic dissolved oxygen stat feed back control with no additional advanced online measurement. In addition, a scale-down feature is integrated in the method to mimic the limitation of oxygen transfer in large-scale vessels, so that strains can be evaluated under the conditions close to that in large-scale bioreactors. The method has been implemented in several commercial standard benchtop scale fermentation systems with different fermentation control software.
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