DSMZ 780 . MIDDLEBROOK MEDIUM WITH MYCOBACTIN

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Equipment needed:

Final pH: n.d.

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ml
Compound Amount Unit
Mycobactine J 2 mg
Absolute ethanol 4 ml
Medium 645 1000 ml
1 Reconstitute the contents of one vial of 2 mg Mycobactine J with 2 ml absolute ethanol (analytical grade). Shake carefully so that the product is completely dissolved. Pour the contents of the bottle into 1 litre of medium 645 kept melted in a water bath at +56°C, taking care to pour out all of the product. Rinse out the vial that contained the Mycobactine J with an additional 2 ml of absolute ethanol and pour into the culture medium. Mix the Mycobactine J alcohol solution and the culture medium very thoroughly.

Main sol. 645 #

905
Compound Amount Unit
Bacto Middlebrook 7H10 agar
(Difco 262710)
19 g
Glycerol 5 ml
Distilled water 900 ml
1 Sterilize for 15 min by 121°C cool to 50 - 55°C. Add 100 ml Middlebrook OADC enrichment (Becton Dickinson 212240) under aseptic conditions and mix thoroughly.
2 If you can´t order the commercial media then prepare the media in this way: