DSMZ 1505a . PROTEINIVORAX HYDROGENIFORMANS MEDIUM

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Equipment needed: Autoclave Filter Gassing station Hungate tubes

Final gas composition: 100 % N2 read more

Final pH: 8.5 - 9.0

Select a strain (optional):

ml
Compound Amount Unit
KH2PO4 0.30 g
MgCl2 x 6 H2O 0.20 g
MgSO4 x 7 H2O 0.12 g
CaCl2 x 2 H2O 0.03 g
NaCl 50.00 g
Tryptone
(BD Bacto)
5.00 g
Trace element solution SL-10 1.00 ml
Selenite-tungstate solution 1.00 ml
Na2CO3 5.00 g
NaHCO3 18.00 g
Seven vitamins solution 1.00 g
Distilled water 1000.00 ml
1 Dissolve ingredients (except sodium carbonate, sodium hydrogencarbonate and vitamins), then sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Add carbonate and hydrogencarbonate, adjust pH to 8.5 - 9.0, dispense medium under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After autoclaving add vitamins from an anoxic stock solution prepared under 100% N2 gas and sterilized by filtration.

Trace element solution SL-10 #

1000
Compound Amount Unit
HCl
(25%)
10.0 ml
FeCl2 x 4 H2O 1.5 g
ZnCl2 70.0 mg
MnCl2 x 4 H2O 100.0 mg
H3BO3 6.0 mg
CoCl2 x 6 H2O 190.0 mg
CuCl2 x 2 H2O 2.0 mg
NiCl2 x 6 H2O 24.0 mg
Na2MoO4 x 2 H2O 36.0 mg
Distilled water 990.0 ml
1 First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml.

Selenite-tungstate solution #

1000
Compound Amount Unit
NaOH 0.5 g
Na2SeO3 x 5 H2O 3.0 mg
Na2WO4 x 2 H2O 4.0 mg
Distilled water 1000.0 ml