Agar which turns blue when galactose is fermented?

Agar that turns blue when galactose is fermented is typically referred to as "galactose agar" or "galactose-containing media." In these media, the presence of specific pH indicators or dyes, such as bromothymol blue, changes color in response to the acid produced during galactose fermentation. When bacteria ferment galactose, the resulting acid lowers the pH, causing the agar to shift from its original color to blue. This color change indicates successful fermentation of galactose by the microorganisms present.