Limitations of Carbohydrate Fermentation Test

Carbohydrate Fermentation Test (Sugar Fermentation Test)

Glucose Fermentation
Glucose Fermentation
Lactose Fermentation
Lactose Fermentation

Other Sugars

Acid Production (Color Change)

What is the carbohydrate fermentation test?

It is a biochemical test used to determine whether a microorganism can ferment a specific carbohydrate, resulting in the production of acid and sometimes gas as metabolic by-products.

What indicator is used in the carbohydrate fermentation test?

The test uses phenol red as a pH indicator, which turns yellow in acidic conditions when fermentation occurs.

Which tube shows a positive carbohydrate fermentation test?

A positive test is indicated by a yellow-colored broth, showing acid production, and if gas is produced, a visible gas bubble forms in the inverted Durham tube inside the broth.

Carbapenem-Resistant Pseudomonas aeruginosa (CRPA)

Carbapenem-Resistant Acinetobacter baumannii (CRAB)