R 2A Agar 500g

R2A Agar is a culture medium used for cultivating bacteria, especially those found in potable water, including those that are stressed or chlorine-tolerant. It's a low-nutrient medium that allows a wide range of bacteria to grow without fast-growing species outcompeting slow-growing ones. This makes it useful for recovering bacteria that might not thrive on richer media. Key Characteristics and Uses:

• Low Nutrient Content:R2A Agar has a lower concentration of nutrients compared to richer media, like Plate Count Agar. 
• Slow-Growing Bacteria:It's designed to support the growth of bacteria that are slow-growing or stressed, which might be suppressed on richer media. 
• Water Microbiology:It's particularly useful for monitoring heterotrophic bacterial populations in water treatment processes and distribution systems. 
• Stressed Bacteria:It can help in the recovery of stressed or injured bacteria that may not grow well on high-nutrient media. 
• Incubation Conditions:It's often incubated at 20-28C for 5-7 days to encourage the growth of stressed and chlorine-tolerant bacteria. 

Formula:The R2A Agar formula typically includes:Proteose peptone, Casein hydrolysate, Yeast extract, Dextrose, Soluble starch, Dipotassium phosphate, Magnesium sulfate, Sodium pyruvate, and Agar.In summary, R2A Agar is a specialized culture medium that allows the cultivation of a broad range of bacteria, particularly those with lower nutrient requirements or that are stressed, making it valuable for monitoring bacterial populations in water systems.