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Main sol. 54b

Internal Solution-ID: S73

Equipment needed: Hungate tubes Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
Glucose 20 g 20 111.012
Yeast extract 10 g 10 -
CaCO3
(light precipitate)
20 g 20 199.82
Agar , for solid medium
optional
17 g 17 50.546
Distilled water 1000 ml - -
1 Dissolve ingredients (note that most of the carbonate remains suspended) and sparge medium with 100% N2 gas for 30 -45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials vials while stirring to keep carbonate suspended and autoclave.
54b CLOSTRIDIUM SP. MEDIUM