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Bioreactors MCQ - Practice Questions with Answers
Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET
Quick Facts
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Bioreactors is considered one the most difficult concept.
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28 Questions around this concept.
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Stirred tank bioreactors have been designed for
Stirred-tank bioreactors have been designed for
Concepts Covered - 1
Bioreactors
- Bioreactors are considered as vessels in which raw materials are biologically converted into specific products by microbes, plant and animal cells and/or their enzymes.
- Small volume cultures cannot yield appreciable quantities of products.
- To produce in large quantities, the development of bioreactors, where large volumes (100-1000 liters) of culture can be processed, was required.
- A bioreactor provides the optimal conditions for achieving the desired product by providing optimum growth conditions (temperature, pH, substrate, salts, vitamins, oxygen)
- The most commonly used bioreactors are of stirring type.
- Stirring type bioreactors are:
- Simple stirred-tank bioreactor
- Sparged stirred-tank bioreactor
- A stirred-tank reactor is usually cylindrical or with a curved base to facilitate the mixing of the reactor contents.
- The stirrer facilitates even mixing and oxygen availability throughout the bioreactor.
- Alternatively, air can be bubbled through the reactor.
- The bioreactor has an agitator system, an oxygen delivery system and a foam control system, a temperature control system, pH control system and sampling ports so that small volume of the culture can be withdrawn periodically.
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