Reagent used to detect the microrganism in milk before pasteurization ?
Ans. is 'b' i.e.,Methylene blue Methylene blue Reduction test' is an indirect test for 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.Test to check the adequecy (efficiency) of pasteurization are : Posphatase test (m.c. used), standard plate count, and coliform count.
Crystal violet
Methylene blue
Phosphatase
Nitric acid
Methylene blue