Explanation

Bioreactors are vessels of large volumes (100-1000 litres) in which raw materials are biologically converted into specific products. It provides all the optimal conditions for achieving the desired product by providing optimal growth conditions like temperature, $pH$, substrate, salts vitamins and oxygen. Stirred-tank bioreactors are commonly used bioreactors. There are cylindrical with curved base to facilitate proper mixing of the contents. The stirrer mixes the contents and makes oxygen available throughout the bioreactor