A-L Stainless 300L Fermentation & Transfer Reactor Vessel/Tank w/ Brawn Mixer

A bioreactor is a type of fermentation vessel that is used for the production of various chemicals and biological reactions.

It is a closed container with adequate arrangement for aeration, agitation, temperature and pH control, and drain or overflow vent to remove the waste biomass of cultured microorganisms along with their products.

A bioreactor should provide for the following:

1. Agitation (for mixing of cells and medium), 
2. Aeration (aerobic fermentors); for O2 supply,
3. Regulation of factors like temperature, pH, pressure, aeration, nutrient feeding, and liquid leveled.
4. Sterilization and maintenance of sterility, and 
5. Withdrawal of cells/medium

Bioreactors are used for the production of biomass, metabolites, and antibiotics.