DSMZ 1099 . DESULFOLUNA MEDIUM

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Equipment needed: Autoclave Gassing station Hungate tubes

Final gas composition: 100 % N2 read more

Final pH: 6.5

Select a strain (optional):

ml
Compound Amount Unit
NaCl 20.0 g
KH2PO4 0.5 g
NH4Cl 1.0 g
Na2SO4 1.0 g
CaCl2 x 2 H2O 0.1 g
MgSO4 x 7 H2O 2.0 g
Yeast extract 0.5 g
Trace element solution SL-10 1.0 ml
Na-L-lactate 2.5 g
Sodium resazurin
(0.1% w/v)
0.5 ml
L-Cysteine HCl x H2O 0.5 g
Distilled water 1000.0 ml
1 Dissolve ingredients (except cysteine) 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 and autoclave. Add cysteine form a sterile anoxic stock solution prepared under 100% N2 gas and adjust pH of the complete medium to 6.5, if necessary.

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.