Ayers & Johnson Agar (Stock Culture Agar) is supplied by the company, HIMEDIA.

This Ayers & Johnson Agaris recommended for maintenance of cultures of Streptococci and other microorganisms. In addition to supporting luxuriant growth, Ayers & Johnson Agaralso helped in maintaining the viability of Streptococci and various other organisms over a long period of time, thus, is also called Stock Culture Agar.

Product specifications:

• Catalog number: M182-500G
• Brand: HIMEDIA
• Quantity/unit: Pack of 500g

Product composition:gm/L

• HM infusion B from #: 500.000
• Proteose peptone: 10.000
• Gelatin: 10.000
• Dextrose (Glucose): 0.500
• M-protein, purified ## :5.000
• Disodium hydrogen phosphate :4.000
• Sodium citrate: 3.000
• Agar :7.500
• Final pH ( at 25C): 7.50.2

Product features:

• Appearance : Yellow to beige homogeneous coarse powder
• Gelling: Semisolid, comparable with 0.75% Agar gel and 1.0% Gelatin gel.
• Colour and Clarity of prepared medium :Light yellow coloured opalescent gel forms in tubes
• Reaction :Reaction of 5% w/v aqueous solution at 25C. pH : 7.50.2
• pH :7.30-7.70
• Cultural Response: Cultural characteristics observed after an incubation at 35-37C for 18-48 hours