Question

Why does cell cultire media wxhibit a change in colour?

Answer 1

•During the cell growth, the medium changes color as pH is changed due to the metabolites released by the cells. At low pH levels, phenol red turns the medium yellow, while at higher pH levels it turns the medium purple. Medium is bright red for pH 7.4, the optimum pH value for cell ᴄᴜʟᴛᴜʀᴇ .