5 Questions
What tends to happen to cells in filamentous cells like actinomycetes and fungi?
They tend to aggregate and only those at the periphery of the clump grow.
How is the avoidance of clumps and the production of loosely organized cells achieved in the airlift fermentor?
By circulating the broth in an external membrane in contact with water.
Why is feedback inhibition a concern in high concentrations of fermentation broth components?
It limits production easily.
What is one way to deal with feedback inhibition in a fermentation broth?
Subjecting the broth to dialysis.
What processes are involved in scaling up operations in a fermentation industry?
Progressing from small conical flasks to large-scale fermentors.
Test your knowledge on the barriers involved in gas transfer to microorganisms in a liquid environment as indicated in Figure 9.2. Topics include gas-film resistance, gas-liquid interfacial resistance, and liquid-film resistance.
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