Oxoid BUFFERED PEPTONE WATER CM0509B

Oxoid Buffered Peptone Water CM0509B

Oxoid Buffered Peptone Water CM0509B is a non-selective pre-enrichment medium designed to promote the recovery of injured or stressed bacteria, particularly Salmonella spp., from food and environmental samples. Its gentle composition helps revitalize sub-lethally damaged organisms, making it an essential medium for accurate microbiological analysis in food safety and public health laboratories.

features

• promotes recovery of injured microorganisms without selective pressure

• conforms to international standards including ISO 6579 and FDA BAM methods

• buffered formulation maintains pH stability during bacterial growth

• suitable for use in automated systems and manual testing procedures

• reliable performance in both solid and liquid sample matrices

• ready for sterilization and easy to prepare

application

• food microbiology – used as a pre-enrichment step for detecting Salmonella in raw meat, poultry, dairy, and produce

• environmental monitoring – enables detection of pathogens in swab samples from processing environments

• clinical diagnostics – assists in isolating bacteria from human biological specimens

• water testing – supports analysis of pathogens in potable and recreational water

• pharmaceutical and cosmetics testing – applicable for microbial contamination analysis

• research laboratories – ideal for microbial recovery studies and validation protocols

specification

• product name: Oxoid Buffered Peptone Water CM0509B

• format: dehydrated culture medium

• typical composition per liter:

  • peptone: 10.0 g

  • sodium chloride: 5.0 g

  • disodium phosphate: 3.5 g

  • potassium dihydrogen phosphate: 1.5 g

• final pH: 7.0 ± 0.2 at 25 °C

• preparation: dissolve 20 g in 1 liter of distilled water, sterilize at 121 °C for 15 minutes

• storage conditions: store in a cool, dry place at 10 – 30 °C; protect from moisture and light

• shelf-life: use before expiry date on the product label

conclusion

It is a critical tool for the accurate detection of pathogens like Salmonella in food and environmental samples. Its non-selective, buffered formulation ensures optimal microbial recovery, making it a reliable choice for food safety laboratories and regulatory compliance.