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Rogosa Agar
Rogosa Agar is a selective medium used for the enumeration of lactobacilli in meat, food products and biological samples of animal origin.
Given its high concentration in salts, the media is not adapted to the isolation of certain dairy lactobacilli such as Lactobacillus delbrueckii subsp. lactis or Lactobacillus delbrueckii subsp. bulgaricus.
Available as dehydrated medium : 500 g bottle
In compliance with regulatory requirements, a USDA permit (VS 16-3) is mandatory for shipments from Canada to the USA due to the inclusion of peptone, an animal byproduct.
In addition to Tryptone and yeast extract rich in B vitamins, Tween 80 is a source of fatty acids required for the development of lactobacilli.
Ammonium citrate and sodium acetate inhibit the development of most contaminants, including streptococci and molds.
The acidic pH resulting from the addition of acetic acid favors the growth of lactobacilli and inhibits that of other bacteria.
