BD BD™ Difco™ R2A Agar

Description

• R2A Agar was developed for bacteriological plate counts of treated potable water
• A low nutrient medium, such as R2A Agar, in combination with a lower incubation temperature and longer incubation time stimulates the growth of stressed and chlorine-tolerant bacteria
• Nutritionally-rich media, such as Plate Count Agar, support the growth of fast-growing bacteria but may suppress slow growing or stressed bacteria found in treated water
• When compared with nutritionally rich media, R2A Agar has been reported to improve the recovery of stressed and chlorine-tolerant bacteria from drinking water systems
• Recommended in standard methods for pour plate, spread plate and membrane filter methods for heterotrophic plate counts
• Intended for use only with compromised bacteria found in treated potable water
• Yeast extract provides a source of trace elements and vitamins
• Peptone and casamino acids provide nitrogen, vitamins, amino acids, carbon and minerals
• Dextrose serves as a carbon source
• Soluble starch aids in the recovery of injured organisms by absorbing toxic metabolic by-products
• Sodium pyruvate increases the recovery of stressed cells
• Potassium phosphate is used to balance the pH and provide phosphate
• Magnesium sulfate is a source of divalent cations and sulfate
• Agar is the solidifying agent
• Order Info Prices are for units of one each unless otherwise specified
• Certifications COMPF, EPA, SMWW