B283

PHENOL RED AGAR BASE

Formula

Ingredients

grms/Lit.

Proteose peptone

Beef extract

Sodium chloride

Phenol red

Agar

10.00

1.00

5.00

0.025

15.00

Final pH (at 25°C) : 7.4 + 0.2

Directions 

Suspend 31 gms. of B283 in 1000 ml distilled water. Heat with frequent agitation to dissolve the medium completely. Dispense in tubes and sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Add 0.5% desired separately sterilized carbohydrate to B283. Allow the tubed media to cool in slanted position to form slants with deep butts.

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