EC Medium, Modified w/Novobiocin
Manufacturer: Neogen Inc.
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EC Medium, Modified w/Novobiocin
Description
Acumedia | BD / Difco | BD / BBL | Oxoid | Merck |
EC Med, Mod w/ Novobiocin (7700) | N/A | N/A | N/A | 1.14582 |
Intended Use
EC Medium, Modified with Novobiocin is used for the selective enrichment of Escherichia coli O157:H7.
Product Summary and Explanation
EC Medium was developed by Hajna and Perry 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 were inhibited by the bile salts.
EC Medium, Modified with the addition of Novobiocin was first described by Okrend and Rose. Okrend and Rose modified EC Medium by reducing the Bile Salts Mixture concentration to 1.12% and adding 20 mg/L of sodium novobiocin. Okrend and Rose et al. reported this formulation, which they called Modified EC & Novobiocin (mEC&N), was beneficial in the enrichment and detection of E. coli O157:H7 from meats and poultry. EC Medium, Modified with Novobiocin is currently recommended by the U.S.D.A.