Overview
- External ontology
- mediadive.medium:1637 (source link unavailable) — METHANOMETHYLOPHILUS MEDIUM
- Applications
-
- Microbial cultivation
- pH range
- {'min': 7.6, 'max': 7.8}
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1637.pdf
Composition
flowchart LR
CultureMech_001121["methanomethylophilus_medium"]
ing0_Trypticase_peptone["Trypticase peptone"]
CultureMech_001121 --> ing0_Trypticase_peptone
ing1_Yeast_extract["Yeast extract"]
CultureMech_001121 --> ing1_Yeast_extract
ing2_NaCl["NaCl"]
CultureMech_001121 --> ing2_NaCl
CHEBI_26710["CHEBI:26710"]
ing2_NaCl -.-> CHEBI_26710
ing3_L_Cysteine_HCl_x_H2O["L-Cysteine HCl x H2O"]
CultureMech_001121 --> ing3_L_Cysteine_HCl_x_H2O
CHEBI_91248["CHEBI:91248"]
ing3_L_Cysteine_HCl_x_H2O -.-> CHEBI_91248
ing4_NaHCO3["NaHCO3"]
CultureMech_001121 --> ing4_NaHCO3
CHEBI_32139["CHEBI:32139"]
ing4_NaHCO3 -.-> CHEBI_32139
ing5_Sodium_resazurin["Sodium resazurin"]
CultureMech_001121 --> ing5_Sodium_resazurin
CHEBI_8806["CHEBI:8806"]
ing5_Sodium_resazurin -.-> CHEBI_8806
ing6_Methanol["Methanol"]
CultureMech_001121 --> ing6_Methanol
CHEBI_17790["CHEBI:17790"]
ing6_Methanol -.-> CHEBI_17790
ing7_DL_Dithiothreitol["DL-Dithiothreitol"]
CultureMech_001121 --> ing7_DL_Dithiothreitol
CHEBI_18320["CHEBI:18320"]
ing7_DL_Dithiothreitol -.-> CHEBI_18320
ing8_Haemin["Haemin"]
CultureMech_001121 --> ing8_Haemin
CHEBI_50385["CHEBI:50385"]
ing8_Haemin -.-> CHEBI_50385
ing9_NaOH["NaOH"]
CultureMech_001121 --> ing9_NaOH
CHEBI_32145["CHEBI:32145"]
ing9_NaOH -.-> CHEBI_32145
ing10_Vitamin_K1["Vitamin K1"]
CultureMech_001121 --> ing10_Vitamin_K1
CHEBI_18067["CHEBI:18067"]
ing10_Vitamin_K1 -.-> CHEBI_18067
ing11_Ethanol["Ethanol"]
CultureMech_001121 --> ing11_Ethanol
CHEBI_16236["CHEBI:16236"]
ing11_Ethanol -.-> CHEBI_16236
Ingredients (12)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Trypticase peptone | 15.6863 G_PER_L | ||
| 2 | Yeast extract | 6.86275 G_PER_L | ||
| 3 |
NaCl
Cl.Na 58.443 g/mol
|
4.90196 G_PER_L |
CHEBI:26710
sodium chloride
|
|
| 4 |
L-Cysteine HCl x H2O
C3H7NO2S.H2O.HCl 175.637 g/mol
|
0.490196 G_PER_L |
CHEBI:91248
L-cysteine hydrochloride hydrate
|
|
| 5 |
NaHCO3
CHO3.Na 84.006 g/mol
|
0.490196 G_PER_L |
CHEBI:32139
sodium hydrogencarbonate
|
|
| 6 |
Sodium resazurin
C12H7NO4 229.191 g/mol
|
0.000490196 G_PER_L |
CHEBI:8806
Resazurin
|
|
| 7 |
Methanol
CH4O 32.042 g/mol
|
7.76471 G_PER_L |
CHEBI:17790
methanol
|
|
| 8 |
DL-Dithiothreitol
C4H10O2S2 154.256 g/mol
|
0.980392 G_PER_L |
CHEBI:18320
1,4-dithiothreitol
|
|
| 9 |
Haemin
C34H32ClFeN4O4 651.952 g/mol
|
0.5 G_PER_L |
CHEBI:50385
hemin
|
|
| 10 |
NaOH
HO.Na 39.997 g/mol
|
1 G_PER_L |
CHEBI:32145
sodium hydroxide
|
|
| 11 |
Vitamin K1
C31H46O2 450.707 g/mol
|
0.1 G_PER_L |
CHEBI:18067
phylloquinone
|
|
| 12 |
Ethanol
C2H6O 46.069 g/mol
|
950 G_PER_L |
CHEBI:16236
ethanol
|
Preparation
- Dissolve ingredients except for methanol and dithiothreitol. Adjust pH to 7.5 with 1 N NaOH and sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Distribute medium under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials to 30% of their volume and autoclave. After sterilization add methanol from a sterile anoxic stock solution (15% v/v) autoclaved under 100% N2 gas atmosphere and dithiothreitol from an anoxic stock solution sterilized by filtration. Before use check the pH of the complete medium and adjust it to 7.6 - 7.8, if necessary.
- After inoculation, add sterile 80% H2 and 20% CO2 gas mixture to 0.5 bar overpressure. After growth becomes visible overpressure of 80% H2 and 20% CO2 gas mixture can be increased to 1 bar.
- Note: Use 10% (v/v) as inoculum.
- Dissolve 50 mg haemin in 1 ml 1 N NaOH; make up to 100 ml with distilled water and filter sterilize. Store refrigerated.
- Dissolve 0.1 ml of vitamin K1 in 20 ml 95% ethanol and filter sterilize. Store refrigerated in a brown bottle.
Target organisms
No target organisms are recorded.
Provenance
Merged from 1 source record.
- methanomethylophilus_medium (CultureMech:001121)
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:15.093308Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 1637 |
| 2026-03-13T06:19:01.392973Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:001121 |
| 2026-03-17T06:30:45.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:13.104801+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "METHANOMETHYLOPHILUS MEDIUM" to "methanomethylophilus_medium" for consistent matching |
| 2026-05-20T06:01:55.973715+00:00 | migrate_ph_range.py | MIGRATED_PH_RANGE | ph_range '7.6-7.8' -> {'min': 7.6, 'max': 7.8} |
| 2026-06-05T07:41:31.947492+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 9 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-08-06T03:04:30.785612+00:00 | merge_recipes.py | MERGED_RECIPES | merged 1 source recipe(s) on fingerprint 3501c2c9cb68abd32ccdc906ed35dad288327602d4d7554b725cb2342557a5e4 |