Deoxycholate agar medium
Estimated test media for the examination of coliform bacteria.
This is a medium for presumptive testing of coliform bacteria. In this medium, coliform bacteria form red colonies. If red colonies are observed, the result is considered presumptively positive, and a confirmation test using EMB agar will be conducted.
basic information
Escherichia coli and coliform bacteria testing is very important as a hygiene indicator for food. The definition of coliform bacteria is "all aerobic or facultatively anaerobic, gram-negative, non-spore-forming rods that ferment lactose to produce acid and gas," which is characterized by not specifying the species of microorganisms. It serves as information to determine whether food has been handled hygienically, and in some cases, it can provide information on the edibility of certain types of food. If food has not been handled hygienically, there is a higher likelihood of contamination by bacteria that can cause food poisoning, increasing the risk of foodborne illness.
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