B499 

DIFFERENTIAL REINFORCED CLOSTRIDIAL BROTH

Formula

Ingredients 

gms/lit.

Peptic digest of animal tissue 

Beef extract 

Yeast extract 

Starch 

Sodium acetate, hydrated 

Glucose 

L-cysteine hydrochloride 

10.00

10.00

1.50

1.00

5.00

1.00

0.50

Final pH (at 25°C) : 7.2 + 0.2

Directions 

Suspend 29 gms. in 1000 ml. distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Just before use add 0.5 ml filter sterilized solution prepared by mixing equal volumes of 4% w/v solution of sodium sulphite and 7% w/v ferric citrate to 25 ml of single strength medium or 0.4 ml and 2 ml to 10 ml and 50 ml of double strength medium respectively. Mix well.

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