BD BD™ Difco™ R2A Agar
Intended for use with stressed and chlorine-tolerant bacteria. BD™ Difco™ R2A Agar is a dehydrated, low-nutrient medium for enumerating and cultivating compromised bacteria and other heterotrophic organisms. It was developed for bacteriological plate counts of treated potable water.
Manufacturer: Fischer Scientific
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Certifications/Compliance
COMPF, EPA, SMWW
Form
Dehydrated (free-flowing, homogenous)
Product Type
Agar
For Use With (Application)
Low nutrient medium for enumeration and cultivation of bacteria from potable Water
Color
Light beige
Media Type
R2A Agar
Formulation
Yeast extract 0.5g/L, Proteose Peptone No. 3 0.5g/L, Casamino Acids 0.5g/L, Dextrose 0.5g/L, Soluble Starch 0.5g/L, Sodium Pyruvate 0.3g/L, Dipotassium Phosphate 0.3g/L, Magnesium Sulfate 0.05g/L, Agar 15g/L
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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
SAFETY INFORMATION
- ShelfLife : 1825 Days
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Certifications/Compliance: COMPF, EPA, SMWW
Form: Dehydrated (free-flowing, homogenous)
Product Type: Agar
For Use With (Application): Low nutrient medium for enumeration and cultivation of bacteria from potable Water
Color: Light beige
Media Type: R2A Agar
Formulation: Yeast extract 0.5g/L, Proteose Peptone No. 3 0.5g/L, Casamino Acids 0.5g/L, Dextrose 0.5g/L, Soluble Starch 0.5g/L, Sodium Pyruvate 0.3g/L, Dipotassium Phosphate 0.3g/L, Magnesium Sulfate 0.05g/L, Agar 15g/L
Certifications/Compliance: __
Form: Dehydrated Powder
Product Type: Agar
For Use With (Application): For maintaining and propagating Yeasts in molecular microbiology procedures
Color: Beige
Media Type: YPD Agar
Formulation: Yeast extract 10g/L, Peptone 20g/L, Dextrose 20g/L, Agar 15g/L
Certifications/Compliance: __
Form: Dehydrated Powder
Product Type: Agar
For Use With (Application): For maintaining and propagating Yeasts in molecular microbiology procedures
Color: Beige
Media Type: YPD Agar
Formulation: Yeast extract 10g/L, Peptone 20g/L, Dextrose 20g/L, Agar 15g/L
