B663 

PSTA ENRICHMENT BROTH BASE

Formula

Ingredients 

gms/lit.

Peptic digest of animal tissue

Sucrose 

Tris hydroxymethyl aminomethane

Brilliant green

Sodium azide 

1.00

1.00

3.00

0.0125

0.192

Final pH (at 25°C) : 8.3 + 0.2

Directions 

Suspend 5.2 gms. in 1000ml. distilled water. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Cool to 45-50°C and aseptically ad Ampicillin to a final concentration of 0.005 g/lit. Mix well before dispensing.

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