Reference no: EM133259832

Consider the pH-sensitive color changes for these pH indicators:

Phenol red is yellow at pH <6.2, bright pink at pH >8.2, and red in between those pHs.

Bromothymol blue is yellow at pH <6.0, blue at pH >7.6, and green in between those pHs.

Methyl red is red at pH <4.4, yellow at pH >6.2, and orange in between those pHs.

Which pH indicator is able to detect and indicate the largest amount of acid production during fermentation?

Select the one that is the best available answer.

1. Bromothymol blue

2. Methyl red

3. Phenol red