B149 

COLUMBIA BROTH BASE

Formula

Ingredients 

gms/lit.

Peptone, special

Biopeptone 

Heart infusion powder 

L-Cystine hydrochloride

Dextrose 

Sodium chloride 

Magnesium sulphate 

Ferrous sulphate 

Sodium carbonate 

Tris (hydroxymethyl) aminomethane 

Tris (hydroxymethyl) aminomethane HCl 

10.00

10.00

3.00

0.10

2.50

5.00

0.10

0.02

0.60

0.83

2.86

Final pH (at 25°C) : 7.5 + 0.2

Directions 

Suspend 35 gms. in 1000 ml. distilled water. Boil to dissolve the medium completely. If desired, SPS (sodium polyanethol sulphonate) may be added in a final concentration of 0.01%. Dispense into tubes and sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

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