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Main sol. 397

Internal Solution-ID: S5606

Equipment needed: Filter Hungate tubes Gassing station Autoclave
Compound Amount Unit Conc. [g/L] Conc. [mM]
Solution A 882 ml - -
Solution B 30 ml - -
Solution D 1 ml - -
Solution E 10 ml - -
Solution F 10 ml - -
Sodium ferulate 10 mM - 10
1 Add and dissolve ingredients of solution A and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under the same gas atmosphere into anoxic Hungate-type tubes and autoclave. Solution B is prepared under 80% N2 and 20% CO2 gas atmosphere and autoclaved. Solutions E and F are autoclaved under 100% N2 gas atmosphere.
2 Solution D is prepared under 100% N2 gas and sterilized by filtration. To complete the medium appropriate amounts of solutions B to F are added to the sterile solution A in the sequence as indicated.
3 Note: Some cultures are shipped in semi-solid medium which stimulates growth at the beginning. For agar stabs 3.00 g/l agar are added to the complete medium from a sterile anoxic stock solution (2% w/v). Upon receipt add anoxically 1 - 2 ml of the recommended freshly prepared liquid medium to the agar tube and incubate for 3 - 5 days . After incubation transfer 0.5 ml of the resulting cell suspension in the liquid phase to tubes with liquid medium.
4 Add sodium ferulate to 10 mM final concentration from filter-sterilized anaerobic stock solution.
397 FERULATE MEDIUM