Rogosa Agar, a modification of the medium described by Rogosa et al., is a selective medium for the isolation and enumeration of lactobacilli. The medium has given excellent results when used in quantitative and qualitative studies of lactobacilli in faeces, saliva and mouth rinses, and in dairy products. It is an effective, selective medium for lactobacilli but the high acetate concentration and low pH suppresses many strains of other lactic acid bacteria.

Composition：(In 75.7g Rogosa Agar/1L H2O)
Peptone: 10 g/lit.
Yeast extract: 5 g/lit.
D(+)-Glucose: 20 g/lit.
Potassium dihydrogen phosphate: 6 g/lit.
Ammonium citrate: 2 g/lit.
Sodium acetate: 17 g/lit.
Magnesium sulfate: 0.575 g/lit.
Ferrous sulfate: 0.034 g/lit.
Manganous sulfate: 0.12 g/lit.
Agar: 15.0 g/lit.
Tween80: 1ml/lit. (attached with medium)


 

Store at Room Temp.
Keep dry.