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Buffered Peptone Water (ISO)

Pack Size: 500g

Price: £88.51

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Quantity:

Stock Availability

On Shelf - Approx. UK delivery date: Tuesday the 15th July 2025*

In bulk stock - ships within 10 - 15 Working Days (Excluding weekends and public holidays)

4 to 6 weeks approx. (Not guaranteed)

UK Shipping

We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

Applications

Buffered Peptone Water (BPW) is a pre-enrichment medium designed to help sub-lethally damaged Salmonella spp. recover before introducing them into a selective enrichment medium.

General

Formulated to ISO 6579, Buffered Peptone Water (BPW) is a pre-enrichment medium designed to help sub-lethally damaged Salmonella spp. recover before introducing them into a selective enrichment medium.

Enzymatic digest of casein is the source of the required nitrogen, carbon and vitamins. Sodium chloride maintains the osmotic balance in the medium. Di-sodium hydrogen phosphate and potassium di-hydrogen phosphate act as buffers in the medium.

This nutritious medium is free from inhibitors and is well buffered to maintain pH 7.0 for the incubation period. Sub-lethal injury to Salmonella spp. occurs in many food processes and this pre-enrichment step greatly increases the chance of their recovery, especially if a low number of cells are present in a sample.

Specification

Additional Information

Shelf Life (days): 1095 days
Storage Temp (C): 10-30C
Dehydrated Medium Appearance: Fine Powder
Prepared Medium Appearance: Liquid
Dehydrated Medium Colour: Pale Straw
Prepared Medium Colour: Pale Straw
Dehydrated PH: 7.0 0.2
Prepared PH: 7.0 0.2
Recommended Incubation: Aerobically at 36-38C for 16-20 hours
Formula*g/L
Enzymatic digest of Casein: 10.0
Sodium chloride: 5.0
Di-sodium hydrogen phosphate: 3.5
Potassium di-hydrogen phosphate: 1.5
Total: 20.0

*Adjusted/supplemented as required to meet performance requirements

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