Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| Solution A | 882 | ml | - | - | |
| Solution B | 30 | ml | - | - | |
| Solution D | 1 | ml | - | - | |
| Solution E | 10 | ml | - | - | |
| Solution F | 10 | ml | - | - | |
| Sodium ferulate | 10 | mM | - | 10 | |
| 1 Add and dissolve ingredients of solution A and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under the same gas atmosphere into anoxic Hungate-type tubes and autoclave. Solution B is prepared under 80% N2 and 20% CO2 gas atmosphere and autoclaved. Solutions E and F are autoclaved under 100% N2 gas atmosphere. | |||||
| 2 Solution D is prepared under 100% N2 gas and sterilized by filtration. To complete the medium appropriate amounts of solutions B to F are added to the sterile solution A in the sequence as indicated. | |||||
| 3 Note: Some cultures are shipped in semi-solid medium which stimulates growth at the beginning. For agar stabs 3.00 g/l agar are added to the complete medium from a sterile anoxic stock solution (2% w/v). Upon receipt add anoxically 1 - 2 ml of the recommended freshly prepared liquid medium to the agar tube and incubate for 3 - 5 days . After incubation transfer 0.5 ml of the resulting cell suspension in the liquid phase to tubes with liquid medium. | |||||
| 4 Add sodium ferulate to 10 mM final concentration from filter-sterilized anaerobic stock solution. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| KH2PO4 | 0.50 | g | 0.567 | 4.166 |
| MgCl2 x 6 H2O | 0.33 | g | 0.374 | 1.84 |
| NaCl | 0.40 | g | 0.454 | 7.76 |
| NH4Cl | 0.40 | g | 0.454 | 8.479 |
| CaCl2 x 2 H2O | 0.05 | g | 0.057 | 0.386 |
| Trace element solution SL-10 | 1.00 | ml | - | - |
| Selenite-tungstate solution | 1.00 | ml | - | - |
| Clarified rumen fluid , clarified | 50.00 | ml | - | - |
|
Trypticase peptone
(BD BBL) |
1.00 | g | 1.134 | - |
|
Sodium resazurin
(0.1% w/v) |
0.50 | ml | 5.7e-4 | 0.002 |
| Distilled water | 830.00 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Na2CO3 | 1.5 | g | 50 | 471.752 |
| Distilled water | 30.0 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Seven vitamins solution | 1 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| L-Cysteine HCl x H2O | 0.3 | g | 30 | 170.808 |
| Distilled water | 10.0 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Na2S x 9 H2O | 0.3 | g | 30 | 124.905 |
| Distilled water | 10.0 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
|
HCl
(25%) |
10.0 | ml | 2.5 | 68.568 | |
| FeCl2 x 4 H2O | 1.5 | g | 1.5 | 7.545 | |
| ZnCl2 | 70.0 | mg | 0.07 | 0.514 | |
| MnCl2 x 4 H2O | 100.0 | mg | 0.1 | 0.505 | |
| H3BO3 | 6.0 | mg | 0.006 | 0.097 | |
| CoCl2 x 6 H2O | 190.0 | mg | 0.19 | 1.463 | |
| CuCl2 x 2 H2O | 2.0 | mg | 0.002 | 0.012 | |
| NiCl2 x 6 H2O | 24.0 | mg | 0.024 | 0.185 | |
| Na2MoO4 x 2 H2O | 36.0 | mg | 0.036 | 0.149 | |
| 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. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| NaOH | 0.5 | g | 0.5 | 12.501 |
| Na2SeO3 x 5 H2O | 3.0 | mg | 0.003 | 0.011 |
| Na2WO4 x 2 H2O | 4.0 | mg | 0.004 | 0.012 |
| Distilled water | 1000.0 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Vitamin B12 | 100 | mg | 0.1 | 0.074 |
| p-Aminobenzoic acid | 80 | mg | 0.08 | 0.583 |
| D-(+)-biotin | 20 | mg | 0.02 | 0.082 |
| Nicotinic acid | 200 | mg | 0.2 | 1.625 |
| Calcium pantothenate | 100 | mg | 0.1 | 0.21 |
| Pyridoxine hydrochloride | 300 | mg | 0.3 | 1.459 |
| Thiamine-HCl x 2 H2O | 200 | mg | 0.2 | 0.536 |
| Distilled water | 1000 | ml | - | - |
| 1 Rumen fluid from cow or sheep (obtained from fistulated animals or abattoir refuse) is filtered through muslin, autoclaved at 121°C for 15 min and then centrifuged at 27,000 g for 20 min. The supernatant is made anoxic by sparging with 100% N2 gas for 15 min, dispensed under same gas atmosphere into anoxic serum vials to 30% of volume and then stored frozen at -20°C. |
| Last modified: | 17.02.22 |
| Source: | DSMZ |
| Taxonomic range: | Bacteria |
| Medium type: | Complex medium |
| Final pH: | n.d. |
| Equipment needed: | Autoclave, Filter, Gassing station, Hungate tubes |
| Edit in Medium builder | |
Detailed instructions for the cultivation of anaerobes including important warnings can be found in the cultivation instructions .
| All strains for this medium: | 1 |
| Compound | Conc. [g/L] | Conc. [mM] |
|---|---|---|
| Na2CO3 | 1.608 | 15.169 |
| Trypticase peptone | 1.072 | - |
| KH2PO4 | 0.536 | 3.938 |
| NH4Cl | 0.429 | 8.015 |
| NaCl | 0.429 | 7.336 |
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