【 Principle 】

Peptone and beef extract provide carbon sources, nitrogen sources, vitamins, and minerals; Higher levels of sodium chloride provide higher osmotic pressure and inhibit the growth of most non staphylococcal microorganisms.

Main components

Composed of peptone, beef extract, sodium chloride, and distilled water.

Storage conditions and expiration date

Storage conditions: This product should be stored in a dark environment at 2-25 ℃.

Validity period: The unopened original packaging has a validity period of 6 months.

This product is a disposable product.

[Sample Requirements]

Samples such as blood and urine from the human body.

Staphylococcus aureus enrichment culture: high salt screening of specimens, inhibition of miscellaneous bacteria, and enrichment of Staphylococcus aureus.

Food microbiological testing: Increase bacteria in meat products and pastries, screen for pathogenic Staphylococcus aureus.

Preliminary screening of clinical specimens: Staphylococcus aureus was isolated from pus and secretion specimens.

Purification and identification of bacterial strains: distinguish salt tolerant Staphylococcus aureus from salt intolerant Streptococcus and Escherichia coli.

Staphylococcus aureus

Staphylococcus aureus, resistant to 7.5% high salt environment, can proliferate extensively in high salt broth;

Facultative anaerobic, mostly producing plasma coagulase;

Pathogenesis: purulent infection, food poisoning.

Can grow in small amounts: coagulase negative Staphylococcus aureus

High salt tolerance, no coagulase, mostly opportunistic pathogens.