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The Standard Plate Count (SPC) has a prescribed incubation time of _____ hours at _____ ºC.

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The Standard Plate Count (SPC) has a prescribed incubation time of _____ hours at _____ ºC.

(a) 24 hours at 32ºC

(b) 48 hours at 45ºC

(c) 48 hours at 32ºC

(d) 12 hours at 45ºC

The question was asked during an interview.

The doubt is from Quality topic in chapter Quality parameters of Dairy Engineering

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Correct choice is (c) 48 hours at 32ºC

To explain: Standard plate count test is carried out for 48 hours at 32ºC. It is also known as aerobic plate count.

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