5 Use of biological resources

• Industrial fermenter


  Diagram

  
• Steam inlet

  Function - Hot steam sterilises inside of fermenter

  Reason - Sterile to prevent contamination from unwanted micro oganisms
• Nutrient inlet

  Function - Allows sterile nutrients to enter the fermenter

  Reason - Micro organisms need nutrients to grow and reproduce
• Water jacket

  Function - Keeps the inside constant

  Reason - Micro organisms grow best at optimum temperature
• Stirring paddles

  Function - Stirs the mixture inside the fermenter

  Reason - Mixes nutrients with the micro organisms and keeps temperature even
• pH probe

  Function - To ensure that the pH is at the optimum value

  Reason - To be maintained at optimum pH