From which of the following processes, only the input of the material is allowed but not output?(a) Batch process(b) Fed-Batch process(c) Semi-Batch process(d) Continuous processThis question was posed to me in an internship interview.Asked question is from Thermodynamic Preliminaries in section Material Balance of Bioprocess Engineering

From which of the following processes, only the input of the material

1.	From which of the following processes, only the input of the material is allowed but not output?(a) Batch process(b) Fed-Batch process(c) Semi-Batch process(d) Continuous processThis question was posed to me in an internship interview.Asked question is from Thermodynamic Preliminaries in section Material Balance of Bioprocess Engineering
Answer» The CORRECT option is (b) Fed-Batch process The best I can EXPLAIN: In fed-batch process, nothing is removed from the reactor during the process, but one SUBSTRATE component is added in order to control the reaction RATE by its CONCENTRATION. In a fed-batch process, a basal medium supports initial growth and production, and a feed medium prevents depletion of nutrients and sustains the production phase.

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