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MRSA Agar Base (Powder)

MRSA Agar Base (Powder)

Cat no: M4691

Supplier: United States Biological
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MRSA Agar is used for the determination of methicillin-resistant and oxacillin-resistant Staphylococcus aureus. It was developed to detect the presence of the mecA gene (classic resistance) in S. aureus. MRSA Agar Base is composed of Mueller Hinton Agar and Sodium Chloride. Mueller Hinton Agar is made up of Beef Extract and Acid Hydrolysate of Casein, providing nitrogen, vitamins, carbon, and amino acids. Starch is added to absorb any toxic metabolites produced. Agar is the solidifying agent. The high concentration of Sodium Chloride enhances growth of S. aureus. Oxacillin is added to determine if the particular strain of S. aureus is oxacillin resistant. Appearance: Homogenous, free-flowing, beige Prepared Appearance: Prepared medium is hazy and yellow-beige. Expected Cultural Response: Without Oxacillin With Oxacillin S. aureus ATCC 25923 (susceptible) Growth No growth S. aureus ATCC 43300 (resistant) Growth No growth
Catalogue number: M4691
Size: 500g
Alternative names: Methicillin Resist. Staphylococcus
References: 1. Murray, P. R., E. J. Baron, and M. A. Pfaller, F. C. Tenover, and R. H. Yolken (eds.). 1995. Manual of clinical microbiology, 6 ed. American Society for Microbiology, Washington, D.C. 2. National Committee for Clinical Laboratory Standards. 1997. Methods for dilution antimicrobial susceptibility tests for bacteria that grow aerobically. 4th ed. Approved standard M7-A4. National Committee for Clinical Laboratory Standards, Villanova, PA. 3. National Committee for Clinical Laboratory Standards. 1997. Performance standards for antimicrobial disk susceptibility tests. 6th ed. Approved standard M2-A6. National Committee for Clinical Laboratory Standards, Villanova, PA.

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