B247 

MALONATE BROTH, EWING MODIFIED

Formula

Ingredients 

gms/lit.

Yeast extract paste

Dextrose 

Ammonium sulphate 

Dipotassium phosphate 

Monopotassiu phosphate 

Sodium chloride 

Sodium malonate 

Bromo thymol blue 

1.00

0.25

2.00

0.60

0.40

2.00

3.00

0.025

Final pH (at 25°C) : 6.7 + 0.2

Directions 

Dissolve 9.28 grams in 1000 ml. distilled water. Dispense and sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes. Avoid the addition of carbon and nitrogen from other sources.

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