mEI AGAR BASE CHROMOGENIC , MODIFIED 500 grams/bottle

m-EI Chromogenic Agar Base, Modified is recommended for the isolation and differentiation of Enterococcus faecium and Enterococcus faecalis. This medium is a modification of the m-EI cromogenic Agar base, where another chromogenic substrate is added. This addition allows the differentiation of Enterococcus faecium and Enterococcus faecalis. Peptone provides nitrogen, vitamins, minerals and amino acids essential for growth. Yeast extract provides trace elements, vitamins and amino acids. Esculin is hydrolyzed by enterococci to form esculetin and dextrose. Cycloheximide inhibits most fungi, and the sodium azide inhibits Gram negative bacteria. Chromogenic Mix is added to differentiate Enterococcus faecium from Enterococcus faecalis. Bacteriological agar is the solidifying agent.