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R0005

R2A Broth Mix. 500g.

Availability

Ships in 6 - 14 Days

Container Size

100oz

Item Count

1 Dry Container(s)

Price per Item

$311.00

Fill Volume

505

R0005

R2A Broth Mix. 500g.

Quantity

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Description
Formulation
Common Applications
Storage

R2A Broth Mix is a low-nutrient medium for the cultivation and enumeration of heterotrophic bacteria from treated potable water and other environmental samples. Its nutrient profile, carbon sources, buffering system, and divalent cation support favor the recovery of slow-growing or disinfectant-stressed organisms during extended incubation.

The formulation provides organic nitrogen, readily metabolizable and polymeric carbohydrates, metabolic intermediates, phosphate buffering, and magnesium ions to sustain oligotrophic growth conditions and promote the development of diverse heterotrophic populations under reduced-nutrient cultivation.

  • 0.050% Proteose Peptone #3
  • 0.050% Casamino Acids
  • 0.050% Yeast Extract
  • 0.050% Glucose
  • 0.050% Starch
  • 0.030% Sodium Pyruvate
  • 0.030% Dipotassium Phosphate
  • 0.005% Magnesium Sulfate
  • Heterotrophic Plate Count (HPC) in Water Testing: Low-nutrient medium for enumerating heterotrophic bacteria from potable, purified, and distribution system waters.

  • Recovery of Stressed/Slow-Growing Bacteria: Promotes recovery of chlorine-, UV-, and nutrient-stressed organisms from treated water systems.

  • Oligotrophic Bacteria Cultivation: Supports growth of slow-growing oligotrophs such as Sphingomonas, Pseudomonas, Acinetobacter, and Caulobacter.

  • Membrane Filtration and MPN Assays: Used as a low-nutrient recovery broth for membrane filter rinses and most probable number determinations.

  • Environmental Monitoring of Water Systems: Suited for monitoring distribution lines, biofilms, building plumbing, and cooling water.

  • Beverage and Bottled Water QC: Enumeration and recovery of background microbiota in bottled and low-nutrient beverages.

  • Pharma/Medical Water Testing: Assessment of purified water, WFI, and dialysis water for low-level microbial contamination.

  • Sample Pre-Enrichment and Dilution: Used as a non-inhibitory diluent and enrichment broth prior to R2A plating.

  • Biofilm Studies: Cultivation of low-nutrient biofilm communities from environmental and engineered water systems.

Storage Temperature
Room Temperature
Shelf Life
1825 days
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