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The Fed-batch culture is a/an ______ culture system.

(a) Open

(b) Closed

(c) Isolated

(d) Semi-closed

The question was asked in final exam.

This is a very interesting question from Microbial Growth Kinetics in section Microbial Growth Kinetics of Fermentation Technology

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Best answer
Correct choice is (d) Semi-closed

Explanation: The Fed-batch culture is a closed culture system where the nutrient media is prepared and it is inoculated with culture organism and then is incubated for a particular time. The batch culture is a closed system and continuous culture is an open system.

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