B733 

MIDDLEBROOK 7H9 BROTH BASE

Formula

Ingredients 

gms/lit.

Amonium sulphate

Disodium phosphate

Monopotassium Phosphate

Sodium citrate

Magnesium sulphate

Calcium chloride

Zinc sulphate

Copper sulphate

Ferric ammonium citrate

L-Glutamic acid

Pyridoxine

Biotin

0.50

2.50

1.00

0.10

0.05

0.0005

0.001

0.001

0.04

0.50

0.001

0.0005

Final pH (at 25°C) : 6.6 + 0.2

Directions 

Suspend 2.35 gms. in 450 ml distilled water. Add either 2ml. glycerol or 0.5g. Polysorbate 80. Heat if necessary to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 10 minutes. Cool to 45°C or below and aseptically add 1 vial of reconstituted Middlebrook ADC Growth Supplement. Mix well before dispensing.

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