Phenylalanine Deaminase Test – Principle, Procedure, Result
Phenylalanine Deaminase Test (PDA test) is a biochemical test used to detect the enzyme phenylalanine deaminase produced by some bacteria. It is used to identify and differentiate gram-negative enteric bacteria, mainly the Proteeae group from other Enterobacteriaceae. In this test, the organism is grown on a medium containing phenylalanine. If the enzyme is present, phenylalanine … Read more