Overview
- External ontology
- mediadive.medium:1175 (source link unavailable) — ALKALIFLEXUS MEDIUM
- Applications
-
- Microbial cultivation
- pH
- 10.0
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1175.pdf
Composition
flowchart LR
CultureMech_000617["alkaliflexus_medium"]
ing0_NH4Cl["NH4Cl"]
CultureMech_000617 --> ing0_NH4Cl
CHEBI_31206["CHEBI:31206"]
ing0_NH4Cl -.-> CHEBI_31206
ing1_MgCl2_x_6_H2O["MgCl2 x 6 H2O"]
CultureMech_000617 --> ing1_MgCl2_x_6_H2O
CHEBI_86345["CHEBI:86345"]
ing1_MgCl2_x_6_H2O -.-> CHEBI_86345
ing2_KH2PO4["KH2PO4"]
CultureMech_000617 --> ing2_KH2PO4
CHEBI_63036["CHEBI:63036"]
ing2_KH2PO4 -.-> CHEBI_63036
ing3_Na2CO3["Na2CO3"]
CultureMech_000617 --> ing3_Na2CO3
CHEBI_29377["CHEBI:29377"]
ing3_Na2CO3 -.-> CHEBI_29377
ing4_NaHCO3["NaHCO3"]
CultureMech_000617 --> ing4_NaHCO3
CHEBI_32139["CHEBI:32139"]
ing4_NaHCO3 -.-> CHEBI_32139
ing5_Na2S_x_9_H2O["Na2S x 9 H2O"]
CultureMech_000617 --> ing5_Na2S_x_9_H2O
CHEBI_76209["CHEBI:76209"]
ing5_Na2S_x_9_H2O -.-> CHEBI_76209
ing6_Yeast_extract["Yeast extract"]
CultureMech_000617 --> ing6_Yeast_extract
ing7_Cellobiose["Cellobiose"]
CultureMech_000617 --> ing7_Cellobiose
CHEBI_17057["CHEBI:17057"]
ing7_Cellobiose -.-> CHEBI_17057
Ingredients (8)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
NH4Cl
Cl.H4N 53.492 g/mol
|
0.2 G_PER_L |
CHEBI:31206
ammonium chloride
|
|
| 2 |
MgCl2 x 6 H2O
2Cl.6H2O.Mg 203.301 g/mol
|
0.05 G_PER_L |
CHEBI:86345
magnesium dichloride hexahydrate
|
|
| 3 |
KH2PO4
H2O4P.K 136.084 g/mol
|
0.2 G_PER_L |
CHEBI:63036
potassium dihydrogen phosphate
|
|
| 4 |
Na2CO3
CO3.2Na 105.988 g/mol
|
7.4 G_PER_L |
CHEBI:29377
sodium carbonate
|
|
| 5 |
NaHCO3
CHO3.Na 84.006 g/mol
|
18.5 G_PER_L |
CHEBI:32139
sodium hydrogencarbonate
|
|
| 6 |
Na2S x 9 H2O
9H2O.2Na.S 240.182 g/mol
|
0.5 G_PER_L |
CHEBI:76209
sodium sulfide nonahydrate
|
|
| 7 | Yeast extract | 0.2 G_PER_L | ||
| 8 |
Cellobiose
C12H22O11 342.297 g/mol
|
3 G_PER_L |
CHEBI:17057
cellobiose
|
Preparation
- pH 10.0
- Prepare the medium without Na2CO3, NaHCO3, Na2S x 9 H2O, cellulobiose or yeast extract. Boil the medium in a water bath and cool under a stream of nitrogen. Add the Na2CO3 and NaHCO3 to the cooled medium (the pH should be about 10.0) and dispense the medium into Hungate tubes or serum bottles under a stream of nitrogen. Seal the tubes under nitrogen gas and autoclave. To the cooled medium at the appropriate amounts of Na2S x 9 H2O, cellulobiose and yeast extract from sterile, anaerobic stock solutions (10% Na2S x 9 H2O, 5% cellulobiose, 10% yeast extract).
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:13.591472Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 1175 |
| 2026-03-13T06:18:56.837286Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000617 |
| 2026-03-17T06:29:50.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:07.962504+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "ALKALIFLEXUS MEDIUM" to "alkaliflexus_medium" for consistent matching |
| 2026-06-05T07:40:47.835349+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 7 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-10T07:46:52.781118+00:00 | primary-term-label-canonicalization-v1.0 | Canonicalized primary term label to OBO canonical (OAK) | 3 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-10-07T13:32:40.086487+00:00 | codex | CURATED_MEDIUM_CONCENTRATION_SOURCE_EVIDENCE | Exact medium/source membership, ingredient inventory/forms, physical-state conditions, literal snippets, and arithmetic checked. Stock boundaries, source-only rows, preparation context, and variants remain explicit follow-up tasks; secondary chemical mappings unchanged. |