Starting at $75.59
|Acumedia||BD / Difco||BD / BBL||Oxoid||Merck|
|EC Medium (7206)||231430||N/A||CM0853||1.10765|
EC Medium is used for the detection of coliform bacteria at 37°C and Escherichia coli at elevated temperatures (44.5 and 45.5°C).
Product Summary and Explanation
EC Medium was developed by Hajna and Perry1 in an effort to improve the methods for the detection of the coliform group and E. coli. This medium consists of a buffered lactose broth with the addition of 0.15% Bile Salts Mixture. Growth of spore-forming bacteria and fecal streptococci are inhibited by the bile salts, while growth of E. coli is enhanced by its presence. This medium can be used at 37°C for the detection of coliform organisms or at 44.5 or 45.5°C for the isolation of E. coli.
EC Medium is employed in elevated-temperature tests for distinguishing organisms of the total coliform group that also belong to the fecal coliform group. The fecal coliform test, using EC Medium, is applicable to investigations of drinking water, stream pollution, raw water sources, wastewater treatment systems, bathing waters, seawaters, and general water-quality monitoring. EC Medium is used in the MPN (Most Probable Number) test for fecal coliforms. EC Medium should not be used for the direct isolation of coliforms; prior enrichment in presumptive media is required for optimum recovery of fecal coliforms. EC Medium is used in methods for food and water testing.