fermentation

• diagram of fermenter

  
• Steam inlet- Hot steam sterilises the inside of the fermenter
• Nutrient inlet- Allows sterile nutrients to enter the fermenter
• Water jacket with cooling water- Keeps the temperature inside constant
• Air inlet -Provides a source of oxygen
• Filter on air inlet- Stops micro-organisms getting inside the fermenter
• Stirring paddles - Keeps the mixture inside the fermenter agitated (stirred)
• pH probe and intake valve for acid and alkali - The pH inside the fermenter is monitored to check it is at the optimum value
• Fermenters are containers used to grow bacteria and fungi in large amounts