1570 .
THIOGRANUM MEDIUM
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Equipment needed:
Autoclave
Filter
Gassing station
Hungate tubes
Final pH:
6.7
Select a strain (optional):
ml
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
NaCl | 30.00 | g | ||
|
|
CaCl2 x 2 H2O | 0.15 | g | ||
|
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MgCl2 x 6 H2O | 3.05 | g | ||
|
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KCl | 0.33 | g | ||
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(NH4)2SO4 | 0.66 | g | ||
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Modified Wolin's mineral solution | 10.00 | ml | ||
|
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Phosphate buffer | 5.00 | ml | ||
|
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Na2S2O3 x 5 H2O | 1.50 | g | ||
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Na2CO3 | 1.00 | g | ||
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Wolin's vitamin solution (10x) | 1.00 | ml | ||
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Distilled water | 1000.00 | ml | ||
| 1 Dissolve ingredients (except phosphate buffer, thiosulfate, carbonate and vitamins) and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials up to a volume of 20% and autoclave. Add phosphate buffer, thiosulfate, carbonate, and vitamin solution to the autoclaved medium from sterile anoxic stock solutions prepared under 100% N2 gas. Phosphate buffer, stock solutions of vitamins and thiosulfate are sterilized by filtration and stored under N2, whereas the solution of carbonate is prepared under 80% N2 and 20% CO2 gas mixture and autoclaved. Adjust pH of the complete medium to 6.7, if necessary. | |||||
| 2 After inoculation pressurize vessels to 0.5 bar overpressure with sterile 80% N2 and 20% CO2 gas mixture and add sterile air in an amount that is equivalent to a volume of 20% of the headspace. | |||||
Modified Wolin's mineral solution #
1000
| Compound | Amount | Unit | |||
|---|---|---|---|---|---|
|
|
Nitrilotriacetic acid | 1.50 | g | ||
|
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MgSO4 x 7 H2O | 3.00 | g | ||
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MnSO4 x H2O | 0.50 | g | ||
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NaCl | 1.00 | g | ||
|
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FeSO4 x 7 H2O | 0.10 | g | ||
|
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CoSO4 x 7 H2O | 0.18 | g | ||
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CaCl2 x 2 H2O | 0.10 | g | ||
|
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ZnSO4 x 7 H2O | 0.18 | g | ||
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CuSO4 x 5 H2O | 0.01 | g | ||
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AlK(SO4)2 x 12 H2O | 0.02 | g | ||
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H3BO3 | 0.01 | g | ||
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Na2MoO4 x 2 H2O | 0.01 | g | ||
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NiCl2 x 6 H2O | 0.03 | g | ||
|
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Na2SeO3 x 5 H2O | 0.30 | mg | ||
|
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Na2WO4 x 2 H2O | 0.40 | mg | ||
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Distilled water | 1000.00 | ml | ||
| 1 First dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH, then add minerals. Adjust final to pH 7.0 with KOH. | |||||
Wolin's vitamin solution (10x) #
1000
| Compound | Amount | Unit | |
|---|---|---|---|
|
|
Biotin | 20 | mg |
|
|
Folic acid | 20 | mg |
|
|
Pyridoxine hydrochloride | 100 | mg |
|
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Thiamine HCl | 50 | mg |
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Riboflavin | 50 | mg |
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Nicotinic acid | 50 | mg |
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Calcium D-(+)-pantothenate | 50 | mg |
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Vitamin B12 | 1 | mg |
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p-Aminobenzoic acid | 50 | mg |
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(DL)-alpha-Lipoic acid | 50 | mg |
|
|
Distilled water | 1000 | ml |