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You are here:Home » Culture Media » Media-Microbiological » Antibiotic Medium #9 (Powder)

Antibiotic Medium #9 (Powder)


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Dehydrated culture media suitable for the microbial assay and detection of antibiotics in milk and plate counts in pharmaceutical products. The activity of an antibiotic can be demonstrated under suitable conditions by its inhibitory effect on organisms.
Catalog #A2297-33
Components shown as g/literAgar 20
Dextrose 2.5
Potassium Phosphate, Dibasic 2.5
Sodium Chloride 5.0
Papaic Digest of Soybean Meal 3.0
Pancreatic Digest of Casein 17.0
Total: 50.0g/liter
Directions per LiterDissolve 50 grams per liter of ddH2O. Heat with stirring until dissolved. Dispense into appropriate containers, loosen caps and autoclave (15psi) for 15 minutes at 121ºC.
Storage and StabilityStore powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept refrigerated and used within a short period of time.
Light tan, homogeneous, free flowing powder
Light to medium amber, clear complete, after autoclaving
pHAs Reported
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.
Alternate namesPolymyxin Base Agar

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