Dey Engley Neutralizing Agar (DENA) has the proficiency to neutralize antimicrobial substances. It is extensively used in environmental monitoring plates to detect and enumerate microorganisms present on surfaces of hygienic significance.
The Ready-to-use DENA plates from Micromaster are exclusively designed for boosting the efficiency of the environmental monitoring program. DENA contact plates are the most preferred choice for routine use in air sampling equipment such as the Air Sampler and also for assessing the microbiological contamination of surfaces.
DENA plates are deliberately over-filled Contact plates such that RODAC plates acquire a dome-shaped structure. This dome-shaped structure is pressed onto the surface for sampling its microbial burden. The RODAC secure plate lid has lugs which fits between the lid and the base to eradicate accidental contamination. These plates are touched on the surface to be sampled and further incubated at a suitable temperature for testing the microbial load. The occurrence and quantity of microorganisms are determined by the appearance of colonies on the surface of the agar medium.
DENA Broth is applicable for environmental sampling where neutralization of the chemical is essential. This medium extensively neutralizes antiseptic and disinfectant chemicals, including iodine, phenolics, formaldehyde, quaternary ammonium compounds, chlorine preparations, mercurial, and glutaraldehyde. Thus, DENA finds applications in various healthcare segments and plays a vital role in disinfectant testing.
