Description
• Intended Use: Vogel and Johnson Agar is used for the isolation of staphylococci.
• Product Summary and Explanation: Coagulase-positive staphylococci, primarily Staphylococcus aureus, are among the
microorganisms that cause spoilage or chemical changes in cosmetic products. To isolate coagulase-positive, mannitol fermenting
staphylococci, Vogel and Johnson modified Tellurite-Glycine Agar by Zebovitz, Evans, and Niven. The modification included
increasing mannitol and adding a pH indicator. Vogel and Johnson Agar selects and differentiates coagulase-positive staphylococci
that ferment mannitol and reduce tellurite.
Vogel and Johnson (VJ) Agar is specified in standard methods testing for cosmetics,1,pharmaceutical articles, nutritional supplements.
Image(s) are representative of the product group and not necessarily the individual product.