U.S. Food & Drug Administration
Center for Food Safety & Applied Nutrition

Bacteriological Analytical Manual Online
January 2001

M65
Indole Medium (CDC)

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Tryptone or trypticase 20 g
Distilled water 1 liter

Adjust pH to 7.3 ± 0.2. Dispense 4 ml portions to 13 x 100 mm tubes. Autoclave 15 min at 121°C. Final pH, 7.2 ± 0.2.



Hypertext Source: Bacteriological Analytical Manual, 8th Edition, Revision A, 1998.

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