Buffered Peptone Water

KM0039

Image

Dehydrated Culture Media products are formulated to supply the required nutrients to allow for the growth of microorganisms.

Used in combination with a variety of selective agents and incubation conditions a wide range of specific organisms can be isolated.

With careful raw material selection of the various media components E&O can ensure a consistent level of quality and performance.

For each formulation the necessary ingredients are accurately weighed, combined and blended together to produce a homogenous powdered product.

Buffered Peptone Water

KM0039

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.

Image
Shelf Life
1095 days
Storage Temperature
10–30°C

pH

7.0 ± 0.2

Appearance

Liquid
Colour
Pale straw

Detailed performance specifications and Quality Control testing protocols are available in the IFU located in the supporting documentation section