B036 

POTATO DEXTROSE AGAR

Formula

Ingredients 

gms/lit.

Potatoes infusion from 

Dextrose 

Agar 

200.00

20.00

5.00

Final pH (at 25°C) : 5.6 + 0.2

Directions 

Suspend 39 gms. in 1000 ml. distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Mix well before dispensing. In specific work, when pH 3.5 is required, Acidify the medium with sterile 10% tartaric acid. The amount of acid required for 100 ml. of sterile, cooled medium is approximately 1ml.DO NOT HEAT the medium after addition of the acid.

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