What Ingredient Makes EMB Agar Differential?

What Ingredient Makes EMB Agar Differential? The differential ingredient is lactose. Fermentation of this sugar results in an acidic pH and causes the pH indicator, neutral red, to turn a bright pinky-red color. How EMB media differentiate bacteria? Differentiation of enteric bacteria is possible due to the presence of the sugars lactose and sucrose in

What Bacteria Can Ferment Mannitol?

What Bacteria Can Ferment Mannitol? Most pathogenic staphylococci, such as Staphylococcus aureus, will ferment mannitol. Most non-pathogenic staphylococci will not ferment mannitol. The Staphylococcus aureus ferments mannitol and turns the medium yellow. The Serratia marcescens does not grow because of the high salt content. Does E coli ferment mannitol? Gram-negative bacteria like E. coli and