B551 

HS MEDIUM

Formula

Ingredients 

gms/lit.

Casein enzymic hydrolysate

Yeast extract 

Sodium hydrophosphate 

Sodium chloride 

Dextrose 

Resazurin 

Agar 

15.00

5.00

0.50

2.50

5.50

0.001

1.00

Final pH (at 25°C) : 7.1 + 0.2

Directions 

Suspend 29.5 gms in 1000 ml distilled water Heat to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

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