DNASE & METHYL GREEN
DNase Test Agar is used to detect deoxyribonuclease activity of bacteria and fungi, particularly for the identification of Staphylococci. Methyl Green combines with the polymerized DNA substrate to form a stable, green complex. The DNA is depolymerized by DNase-producing bacteria, which exhibit a clear zone against the green background around the colony. Tryptose is the nitrogenous source. Sodium Chloride maintains the osmotic balance and Agar is the gelifying agent.