D/E Neutralizing Agar and D/E Neutralizing Broth have the ability to neutralize antimicrobial chemicals and are used for environmental sampling for the detection and enumeration of microorganisms present on surfaces of sanitary importance.

• Peptone provides source of nitrogen
• Yeast extract is a rich source of B-complex vitamins
• Dextrose is an energy source

The presence and number of microorganisms is determined by the appearance of colonies on the surface of the agar medium.

D/E Neutralizing Broth is used for environmental sampling where neutralization of the chemical is important to determine its bactericidal or bacteriostatic activity. This medium will neutralize a broad spectrum of antiseptic and disinfectant chemicals, including quaternary ammonium compounds, phenolics, iodine and chlorine preparations, mercurials, formaldehyde, and glutaraldehyde.