What is the term for a bioprocess where reactants are added at the start, products are removed after the reaction, and the vessel is cleaned before the next run?

What is the term for a bioprocess where reactants are added at the start, products are removed after the reaction, and the vessel is cleaned before the next run?

• A. Fed-Batch Process
• B. Continuous Flow Process
• C. Static Cultures
• D. Batch Process

Answer: (D)

In a batch bioprocess, you load all reactants into the reactor at the start, let the reaction run to completion, harvest the product, and then clean and prepare the vessel before starting the next batch. This setup fits the description exactly: reactants are added at the beginning, products are removed after the reaction, and the vessel is cleaned before the next run. The other ideas don’t fit this pattern. A continuous flow process keeps adding input and removing product on an ongoing basis, without stopping to reset the vessel between runs. A fed-batch process adds nutrient or substrate during the run to extend production, rather than starting with all reagents initially. Static cultures are simply cultures held in place without continuous operation or batch cycling.

In a batch bioprocess, you load all reactants into the reactor at the start, let the reaction run to completion, harvest the product, and then clean and prepare the vessel before starting the next batch. This setup fits the description exactly: reactants are added at the beginning, products are removed after the reaction, and the vessel is cleaned before the next run.

The other ideas don’t fit this pattern. A continuous flow process keeps adding input and removing product on an ongoing basis, without stopping to reset the vessel between runs. A fed-batch process adds nutrient or substrate during the run to extend production, rather than starting with all reagents initially. Static cultures are simply cultures held in place without continuous operation or batch cycling.