The following tests are used to check the efficiency of pasteurization of mild except -
Ans is 'd' i.e., Methylene blue test `Methylene blue Reduction test' is an indirect test Jar detection of microorganism in milk. It is carried out on milk prior to the process of pasterurization and is not used to check the efficiency of pasteruization.
Phosphatase test
Standard plate count
Coliform count
Methylene blue test