Methyl red test and HCl.
The methyl red (MR) test has successfully detected the production of sufficient acid during the fermentation of glucose and the maintenance of conditions such that the pH of an old culture is sustained below a value of about 4.5 when there is a change in the color of the methyl red indicator, which is added at the end of the incubation period.
Hydrogen potentials is what PH stands for. It refers to the number of hydrogen ions in a solution. This serves as a gauge for the acidity or alkalinity of a solution. On a pH scale, the pH value ranges from 0 to 14.
The Methyl Red test is used to detect an increase in ph from 4.4 to 6.0 as mixed acids are further catabolized to form the neutral product HCl.
Learn more about acids here:
https://brainly.com/question/25148363
#SPJ4
