In a carbohydrate fermentation test, how do you know if the

Last updated: 7/25/2022

In a carbohydrate fermentation test, how do you know if the bacteria fermented the carbohydrate in the medium? The pH increases when bacteria ferment the carbohydrate and the pH indicator turns red The medium turns yellow AND gas is collected in the tube The medium turns yellow with or without gas production Bacteria grow on the surface of the medium where there is more oxygen for fermentation