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

Bacteriological Analytical Manual Online
January 2001

M123
Phenylalanine Deaminase Agar

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Yeast extract 3 g
L-Phenylalanine or 1 g
DL-Phenylalanine 2 g
Na2HPO4 1 g
NaCl 5 g
Agar 12 g
Distilled water 1 liter

 

 

Heat gently to dissolve agar. Tube and autoclave 10 min at 121°C. Incline tubes to obtain long slant. Final pH, 7.3 ± 0.2.

 



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

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