B404 

ANAEROBIC TRYPTONE SOYA AGAR 

Formula 

Ingredients 

gms/lit.

Casein enzymic hydrolysate 

Papaic digest of soyabean meal 

Yeast extract 

Sodium chloride 

L-Cysteine 

Vitamin K1 

Hemin

Agar 

15.00

5.00

5.00

5.00

0.40

0.01

0.005

20.00 

Final pH (at 25°C) : 7.5 ± 0.2 

Directions 

Suspend 50.4 gms. in 1000 ml. distilled water. Heat to boiling to dissolve the medium completely. Dispense and sterilize by autoclaving at 15 lbs pressure (121C) for 15 minutes. Cool and pour into plates or tubes as desired. It is recommended that medium be reduced by keeping in anaerobic jar-incubator for 24 hours before use.

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