The fermenter used in the production of penicillin (by deep fermentation process) is made of___________________?
Correct answer: C. Glass lined steel
- A. Glass
- B. High silicon cast iron
- C. Glass lined steel
- D. Porcelain
Explanation
Penicillin fermentation requires a sterile, corrosion-resistant vessel that can withstand repeated steam sterilisation, making glass-lined steel suitable. Ordinary glass is impractical for large industrial fermenters because of its fragility.
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