Question

The vp test is a confirmatory test. in what situations would this test be utilized

Answer 1

VP or Voges-Proskauer test, detects  acetoin in a bacterial broth culture.
This test depends on the digestion of glucose to acetylmethylcarbinol. If glucose starts to break down, it will react with two reagents of this test and form a red color. A red color indicates a positive result and a yellow-brown color indicates a negative result.