Cat.No.
Mic-0055M
Product Name
R2A Agar
Product Details
R2A Agar medium is used for the detection of bacteria in water, especially in treated potable water. This is a low-nutrient medium in which a combination of longer time and lower temperature of incubation promotes the growth of stressed and chlorine-treated bacteria. Enzymatic Digest of Casein and Animal Tissue provide nitrogenous sources for bacterial growth. Yeast Extract supplies B-complex vitamins and serves as growth enhancer. Dextrose is the fermentable carbohydrate. Soluble starch serves as neutralizer, while Sodium Pyruvate stimulates the growth of stressed bacteria. Dipotassium Phosphate and Magnesium Sulfate Heptahydrate act as pH buffers. Agar is the gelifying agent.
Product Ingredients
Enzymatic Digest of Casein (0.25 g/L), Yeast Extract (0.5 g/L), Peptic Digest of Animal Tissue (0.25 g/L), Acid Hydrolysate Casein (0.5 g/L), Dextrose (0.5 g/L), Soluble Starch (0.5 g/L), Magnesium Sulfate Heptahydrate (0.1 g/L), Dipotassium Phosphate (0.3 g/L), Sodium Pyruvate (0.3 g/L), Agar (15.0 g/L). Final pH: 7.2 ± 0.2 at 25 °C. Grams per liter may be adjusted or formula supplemented to obtain desired performance.
size
500g, 2kg, 10kg
Usage Method
Mix 18.2 grams of the medium in one liter of purified water until evenly dispersed. Heat with repeated stirring and boil for one minute to dissolve completely. Distribute and autoclave at 121°C for 15 minutes.
Application
Brewing industry
Storage
Store the sealed bottle containing the dehydrated medium at 2 to 30°C. Once opened and recapped, place the container in a low humidity environment at the same storage temperature. Protect it from moisture and light. The dehydrated medium should be discarded if it is not free flowing or if the color has changed from the original color.
Data Sheet
