In the Voges-Proskauer test, you are testing for the metabolic by-products of which pathway?
A) glucose $\rightarrow$ formic acid $\rightarrow$ formaldehyde
B) glucose $\rightarrow$ pyruvic acid $\rightarrow$ mixed acid fermentation
C) lactose $\rightarrow$ glucose $\rightarrow$ 2,3 butanediol
D) glucose $\rightarrow$ pyruvic acid $\rightarrow$ acetoin

Question

Quizplus · Accepted Answer

The Voges-Proskauer test detects the presence of acetoin, which is a metabolic by-product of the fermentation pathway that converts glucose to pyruvic acid and then acetoin. This pathway is known as the butylene glycol pathway. Therefore, choice D (glucose to pyruvic acid to acetoin) is the correct pathway tested in the Voges-Proskauer test.

In the Voges-Proskauer Test, You Are Testing for the Metabolic →\rightarrow→

In the Voges-Proskauer Test, You Are Testing for the Metabolic $\rightarrow$