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The fermenter vessel is sterilized at ____________

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in Fermentation Technology by (72.1k points)
The fermenter vessel is sterilized at ____________

(a) 20 psi

(b) 15 psi

(c) 5 psi

(d) 10 psi

I had been asked this question during an interview for a job.

My question comes from Continuous Sterilization topic in portion Sterilization of Fermentation Technology

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Right option is (b) 15 psi

Explanation: The fermenter vessel is sterilized at 15 psi. The jackets or coils of the fermenter are heated in steam for about 20 minutes. The medium which is sterilized is never added directly to the fermenter vessel until the vessel is sterilized. Otherwise, it may lead to contamination of the medium.

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