In a large-scale industrial fermenter, what is the primary purpose of the water jacket?

  1. To provide water for the microorganisms to drink.
  2. To maintain an optimum temperature by removing excess heat.
  3. To prevent oxygen from entering the tank.
  4. To stir the mixture and ensure even distribution.

📝 Detailed explanation

Microbial respiration is exothermic; the cooling jacket prevents the temperature from rising high enough to denature enzymes.
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