Merck, 39187-25DISCS, Universal Environmental ID Membrane

General description
Universal Environmental ID Membranes are substrate-carrying membranes used for rapid identification and differentiation of environmental pathogens through characteristic color reactions by placing on the agar surface post-incubation. The membranes contain chromogenic substrates such as ONPG, X-Gal, or X-Glu, and other substrates and indicators, which serve as the basis for microbe differentiation by color. The target organisms possess enzyme systems that metabolize the substrates in the membrane, leading to a change of color. The colors can be visually detected on the membrane. This indicates microbial enzymatic activity, which serves to identify the genus and species. This economical, confirmatory, and rapid identification method is suitable for microorganisms from environmental samples, and samples of clinical origin such as nosocomial samples.
Application
Universal Environmental ID Membrane is recommended for rapid detection of Pseudomonas, Enterococcus, E. coli, and Salmonella species, etc., from environmental samples and samples of clinical origin, such as nosocomial samples. They find their application in various sectors such as the food and dairy industry, water industry, pharmaceutical laboratory testing, cosmetic industry, environmental and sanitary testing, clinical diagnostics, etc.
Analysis Note
Escherichia coli (25922)pink - purpleStaphylococcus aureus (25923) - golden yellowPseudomonas aeruginosa (27853) - colorless (greenish pigment is observed)Enterococcus faecalis (29212) blue – blue green (small)Salmonella Typhimurium (14028) - colorless