B476 

CRYSTAL VIOLET LACTOSE BROTH

Formula

Ingredients 

gms/lit.

Peptic digest of animal tissue

Lactose

Dipotassium phosphate 

Monopotassium phosphate 

Crystal violet 

5.00

 5.00

5.00

1.00

0.00143

Final pH (at 25°C) : 7.4 + 0.2

Directions 

Suspend 16 gms. in 1000 ml. distilled water. Distribute in 10 ml quantities in tubes with inverted Durham tubes. Sterilize by autoclaving at 15lbs pressure for 15 minutes. If the inoculum is more than 1 ml. double or multiple strength media should be used.

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