Question

Production of acetoin can be detected by which of the following tests?
A.Citrate test
B. Voges-Proskauer test
C. Methyl red test
D. Indole test

Answer 1

hey mate here is the answer

the option is C

Answer 2

Production of acetone can be detected by methyl red test.

Hence the correct answer is C.

The methyl red (MR) is used for the detection of production of enough acid during the glucose fermentation and maintenance of the conditions i.e.  

The pH of the old culture.

The methyl red changes its colour at the end of the experiment.