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Main sol. 534

Internal Solution-ID: S1179

This solution is used in 2 media and was first defined in medium 534.

Equipment needed: Filter Autoclave
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 30.00 g 30 513.347
MgSO4 x 7 H2O 7.00 g 7 28.4
MgCl2 x 6 H2O 5.50 g 5.5 27.053
KCl 0.65 g 0.65 8.719
NaBr 0.10 g 0.1 0.972
NH4Cl 0.15 g 0.15 2.804
K2HPO4 0.15 g 0.15 0.861
CaCl2 x 2 H2O 0.50 g 0.5 3.401
Trace element solution 10.00 ml - -
Distilled water 1000.00 ml - -
1 Sparge medium with 100% N2 gas mixture for 20 min to make it anoxic.
2 Adjust pH to 6.5-6.8 with 1N H2SO4.
3 Fill 10 ml of medium in serum bottles (100 ml) under a protective H2/CO2 atmosphere and tightly stopper.
4 Autoclave at 121 °C for 15 min.
5 after autoclaving add the following filter-sterilized solutions.
Solution A , 0.3 ml/10ml
(gassed with CO2)
30.00 ml/l - -
Solution B , 0.3 ml/10ml
(gassed with N2)
30.00 ml/l - -
6 apply xx bar H2/CO2 (80%/20%) + yy % O2 (Note: strain specific conditions need to be applied)
7 For more details on the medium see the original description (Huber et al. System. Appl. Microbiol. 15:340-351 (1992)).
534 MODIFIED SME MEDIUM
977 VULCANITHERMUS MEDIUM