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You are here:Home » Culture Media » Media-Microbiological » Kligler Iron Agar (Powder)

Kligler Iron Agar (Powder)

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Specifications

Differential medium for identification of enteric bacteria based on fermentation of dextrose, lactose and H2S production. This medium permits differentiation of Gram-negative bacilli by their ability to ferment Dextrose or Lactose, and produce hydrogen sulfide. Enzymatic Digest of Casein and Enzymatic Digest of Animal Tissue provide nitrogen, carbon, and vitamins required for organism growth. Ferric Ammonium Citrate and Sodium Thiosulfate are indicators of hydrogen sulfide production. Phenol Red is the pH indicator. Sodium Chloride maintains the osmotic balance of the medium. Agar is the solidifying agent.
Catalog #K1892
Formulation (g/L)Enzymatic Digest of Casein 10
Enzymatic Digest of Animal Tissue 10
Lactose 10
Dextrose 1
Ferric Ammonium Citrate 0.5
Sodium Chloride 5
Sodium Thiosulfate 0.5
Phenol Red 0.025
Agar 15
Total: 52g/L
Directions per Liter1. Suspend 52g of the medium in one liter of ddH2O.
2. Heat with frequent agitation and boil for one minute to completely dissolve the medium.
3. Distribute into test tubes and autoclave for 15 minutes at 121°C.
4. After autoclaving, allow medium to solidify in a slanted position.
Storage and StabilityStore sealed bottle containing the dehydrated medium at RT. Once opened and recapped, place container in a low humidity environment at the same storage temperature. Protect from moisture and light.
FormLight beige, free-flowing homogeneous powder
SolubilityReddish-orange to red, trace to slightly hazy
pH (5.2%)7.4
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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