Overview
- External ontology
- mediadive.medium:914 (source link unavailable) — PTYG-MEDIUM
- Applications
-
- Microbial cultivation
- pH
- 7.0
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium914.pdf
Composition
flowchart LR
CultureMech_002082["ptyg_medium"]
ing0_Peptone["Peptone"]
CultureMech_002082 --> ing0_Peptone
ing1_Tryptone["Tryptone"]
CultureMech_002082 --> ing1_Tryptone
ing2_Yeast_extract["Yeast extract"]
CultureMech_002082 --> ing2_Yeast_extract
ing3_Glucose["Glucose"]
CultureMech_002082 --> ing3_Glucose
CHEBI_17234["CHEBI:17234"]
ing3_Glucose -.-> CHEBI_17234
ing4_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
CultureMech_002082 --> ing4_MgSO4_x_7_H2O
CHEBI_31795["CHEBI:31795"]
ing4_MgSO4_x_7_H2O -.-> CHEBI_31795
ing5_CaCl2["CaCl2"]
CultureMech_002082 --> ing5_CaCl2
CHEBI_3312["CHEBI:3312"]
ing5_CaCl2 -.-> CHEBI_3312
Ingredients (6)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Peptone | 5 G_PER_L | ||
| 2 | Tryptone | 5 G_PER_L | ||
| 3 | Yeast extract | 5 G_PER_L | ||
| 4 |
Glucose
C6H12O6 180.156 g/mol
|
10 G_PER_L |
CHEBI:17234
glucose
|
|
| 5 |
MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
|
0.6 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
|
| 6 |
CaCl2
Ca.2Cl 110.984 g/mol
|
0.06 G_PER_L |
CHEBI:3312
calcium dichloride
|
Preparation
- pH 7.0
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:12.735069Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 914 |
| 2026-03-13T06:19:10.129770Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:002082 |
| 2026-03-17T06:30:28.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:22.764038+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "PTYG-MEDIUM" to "ptyg_medium" for consistent matching |
| 2026-06-05T07:41:42.859029+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 3 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 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. |