Overview
- External ontology
- mediadive.medium:550 (source link unavailable) — CYC-MEDIUM (modified following Cross and Attwell,1973)
- Applications
-
- Microbial cultivation
- pH
- 7.2
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium550.pdf
Composition
flowchart LR
CultureMech_001686["cyc_medium_modified_following_cross_and_attwell_1973"]
ing0_Czapek_Dox_agar["Czapek Dox agar"]
CultureMech_001686 --> ing0_Czapek_Dox_agar
CHEBI_2509["CHEBI:2509"]
ing0_Czapek_Dox_agar -.-> CHEBI_2509
ing1_Yeast_extract["Yeast extract"]
CultureMech_001686 --> ing1_Yeast_extract
ing2_Casamino_acids["Casamino acids"]
CultureMech_001686 --> ing2_Casamino_acids
ing3_Tryptophan["Tryptophan"]
CultureMech_001686 --> ing3_Tryptophan
CHEBI_27897["CHEBI:27897"]
ing3_Tryptophan -.-> CHEBI_27897
ing4_Agar["Agar"]
CultureMech_001686 --> ing4_Agar
ing4_Agar -.-> CHEBI_2509
Ingredients (5)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Czapek Dox agar | 48 G_PER_L |
CHEBI:2509
agar
|
|
| 2 | Yeast extract | 2 G_PER_L | ||
| 3 | Casamino acids | 6.1 G_PER_L | ||
| 4 |
Tryptophan
C11H12N2O2 204.229 g/mol
|
0.02 G_PER_L |
CHEBI:27897
tryptophan
|
|
| 5 | Agar | 20 G_PER_L |
CHEBI:2509
agar
|
Preparation
- pH 7.2
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:11.590665Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 550 |
| 2026-01-28T19:48:12.585288Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-03-13T06:19:06.431520Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:001686 |
| 2026-03-17T06:29:52.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:18.625433+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "CYC-MEDIUM (modified following Cross and Attwell,1973)" to "cyc_medium_modified_following_cross_and_attwell_1973" for consistent matching |
| 2026-06-05T07:40:55.152314+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 4 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-08T23:19:36.496416+00:00 | chebi-regrounding-v1.0 | Corrected CHEBI ingredient grounding (audit G21/G22) | Re-grounded 2 term reference(s) to the correct CHEBI (see reports/chebi_grounding_audit.md). Label-conditional fixes for pyridoxine/pyridoxamine, glycerol, MnSO4, Ca(NO3)2, selenate; casamino acids de-grounded (mixture, no single CHEBI). |
| 2026-10-07T12:21:30.028294+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. |