Baird Parker Agar

Code: KM0037-500G

Variation ID		Product Code	Pack Size	List Price	Qty
17960	photo_camera	KM0037-500G	500g KM0037-500G	£80.25

Pack: 500g

£80.25

Baird Parker agar is a selective medium for the isolation and presumptive identification of coagulase-positive staphylococci.This medium is used extensively for detecting Staphylococcus aureus in foods, dairy products, and other materials.

Enzymatic digest of casein, meat extract and yeast extract provide the required carbon, nitrogen and vitamins. The medium is made selective by the inclusion of lithium chloride and the addition of potassium tellurite. Glycine and sodium pyruvate are included as growth enhancers while the pyruvate also acts as a neutraliser of toxic peroxides.

Coagulase positive staphylococci are differentiated by the addition of egg yolk tellurite (BM0530) due to their ability to break down the egg yolk. Clear zones around colonies form due to theproteolytic action of lecithinase. A secondary opaque zone,surrounding presumptive positive colonies, may also form due to lipase activity. Potassium tellurite is reduced by staphylococci giving rise to blackening of colonies.

NB: Any black colonies (with halo (typical) or without the halo (atypical)) on this medium must be confirmed as Staphylococcus aureus by further tests (e.g. coagulase test or latex agglutination etc.)

Baird Parker agar is a selective medium for the isolation and presumptive identification of coagulase-positive staphylococci.This medium is used extensively for detecting Staphylococcus aureus in foods, dairy products, and other materials.

Additional Information

Shelf Life (days): 1095 days

Storage Temp (C): 10-30C

Dehydrated Medium Appearance: Fine Powder

Prepared Medium Appearance: Firm Gel

Dehydrated Medium Colour: Straw

Prepared Medium Colour: Pale Yellow

Dehydrated PH: 7.2 0.2

Prepared PH: 7.2 0.2

Recommended Incubation: Aerobically at 36-38C for 48 hours

Formula*

g/LEnzymatic digest of casein: 10.0