BLOOD AGAR BASE + NALIDIXIC ACID - 500 g
For the differentiation of the hemolytic activity of streptococci
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Suspend 40 grams of the medium in one liter of distilled water. Mix well and dissolve by heating with frequent agitation. Boil for one minute until complete dissolution. Sterilize in autoclave at 121ºC for 15 minutes. Cool to 45-50ºC and aseptically add 5% of sterile defibrinated blood. Homogenize and pour intro Petri dishes.
Formula