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Main sol. 1105

Internal Solution-ID: S2222

Equipment needed: Filter Autoclave
Compound Amount Unit Conc. [g/L] Conc. [mM]
Na2CO3 22.0 g 22 207.571
NaHCO3 8.0 g 8 95.23
NaCl 6.0 g 6 102.669
K2HPO4 0.5 g 0.5 2.871
Distilled water 1000.0 ml - -
1 Dissolve in this order in 1L preferably MilliQ water. Sterilize in closed bottles at 120°C 20 min. After cooling, usually there will be some precipitate on the bottom. That´s why it is handy to have another empty 1L bottle to decant clear top solution into it.
2 After sterilization add from concentrated steril stock solutions:
Trace metals solution (Pfennig & Lippert, 1966) 1.0 ml - -
MgSO4 x 7 H2O
(20 %)
1.0 ml 0.2 0.811
Na2S2O3 x 5 H2O
(2 M, pH 10)
10.0 μl - -
Vitamin B12
(0.01 %)
1.0 ml 1.0e-4 7.4e-5
Isobutyramide
(1 M, 8.7 g in 100 ml H2O dest)
10.0 ml 0.871 10
3 Trace metals, MgSO4 x 7 H2O and Na2S2O3 x 5 H2O solution you can autoclave
4 Vitamin B12 and Isobutyramide solution you have to filter-sterilize
1105 NITRILIRUPTOR ALKALIPHILUS MEDIUM