Question

The holding time at 135°C will be _________

(a) 2.44 minutes

(b) 51.9 seconds

(c) 18.9 seconds

(d) 2.7 seconds

The question was asked at a job interview.

I'd like to ask this question from Continuous Sterilization in chapter Sterilization of Fermentation Technology

Answer 1

The correct option is (b) 51.9 seconds

For explanation: The Holding time at 135°C will be 51.9 seconds. This temperature time was calculated to give the value of the Del factor. 2.44 minutes was the holding time at 130°C. 2.7 seconds was the holding time at 150°C.