B1174

EMB AGAR, LEVINE

Formula 

BW1174

Ingredients 

gm/lit.

Pancreatic digest of gelatin 

Dipotassium phosphate 

Lactose 

Eosin –Y 

Methylene blue 

Agar 

10.00

2.00

10.00

0.40

0.065

15.00

Final pH (at 25°C)

7.1 + 0.2

Directions

Suspend 37.5 gm of B1174 in 1000 ml. distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. AVOID OVERHEATING. Cool to 50°C and shake the medium in order to oxidize the methylene blue (i.e. restores its blue color) and to suspend the precipitate which is an essential part of the medium.Precaution: Store the medium away from light to avoid photo-oxidation.

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