Overview
- External ontology
- mediadive.medium:1283 (source link unavailable) — KR Medium
- Applications
-
- Microbial cultivation
- pH
- 7.2
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1283.pdf
Composition
flowchart LR
CultureMech_000747["kr_medium"]
ing0_Tryptone["Tryptone"]
CultureMech_000747 --> ing0_Tryptone
ing1_Yeast_extract["Yeast extract"]
CultureMech_000747 --> ing1_Yeast_extract
ing2_Pyromelitic_acid["Pyromelitic acid"]
CultureMech_000747 --> ing2_Pyromelitic_acid
CHEBI_45165["CHEBI:45165"]
ing2_Pyromelitic_acid -.-> CHEBI_45165
ing3__NH4_2HPO4["(NH4)2HPO4"]
CultureMech_000747 --> ing3__NH4_2HPO4
CHEBI_63051["CHEBI:63051"]
ing3__NH4_2HPO4 -.-> CHEBI_63051
ing4_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
CultureMech_000747 --> ing4_MgSO4_x_7_H2O
CHEBI_31795["CHEBI:31795"]
ing4_MgSO4_x_7_H2O -.-> CHEBI_31795
ing5_Agar["Agar"]
CultureMech_000747 --> ing5_Agar
CHEBI_2509["CHEBI:2509"]
ing5_Agar -.-> CHEBI_2509
Ingredients (6)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Tryptone | 1 G_PER_L | ||
| 2 | Yeast extract | 1 G_PER_L | ||
| 3 |
Pyromelitic acid
C10H6O8 254.15 g/mol
|
1 G_PER_L |
CHEBI:45165
pyromellitic acid
|
|
| 4 |
(NH4)2HPO4
2H4N.HO4P 132.056 g/mol
|
0.264 G_PER_L |
CHEBI:63051
diammonium hydrogen phosphate
|
|
| 5 |
MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
|
0.147 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
|
| 6 | Agar | 15 G_PER_L |
CHEBI:2509
agar
|
(for solid medium) |
Preparation
- pH 7.2
- To solid media add 15.0g/l agar.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:13.994842Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 1283 |
| 2026-03-13T06:18:58.048643Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000747 |
| 2026-03-17T06:30:21.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:09.399973+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "KR Medium" to "kr_medium" for consistent matching |
| 2026-06-05T07:41:10.566216+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 2 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-10T07:37:35.039766+00:00 | primary-term-regrounding-v1.0 | Re-grounded wrong primary term id (OAK-verified) | 1 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-06-10T07:47:00.430956+00:00 | primary-term-label-canonicalization-v1.0 | Canonicalized primary term label to OBO canonical (OAK) | 1 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-08-20T19:01:55.196252+00:00 | apply_mim_groundings.py | Adopted MIM published grounding | Grounded 1 ingredient(s) from MIM's ingredient_mappings.sssom.tsv (2026-08-18), exactMatch only, where this record carried no CHEBI term (#308). |
| 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. |