Overview
- External ontology
- mediadive.medium:1140 (source link unavailable) — PYG MEDIUM (E)
- Applications
-
- Microbial cultivation
- pH
- 7.0
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1140.pdf
Composition
flowchart LR
CultureMech_000578["pyg_medium_e"]
ing0_Bacto_peptone["Bacto peptone"]
CultureMech_000578 --> ing0_Bacto_peptone
ing1_Beef_extract["Beef extract"]
CultureMech_000578 --> ing1_Beef_extract
ing2_Yeast_extract["Yeast extract"]
CultureMech_000578 --> ing2_Yeast_extract
ing3_Glucose["Glucose"]
CultureMech_000578 --> ing3_Glucose
CHEBI_17234["CHEBI:17234"]
ing3_Glucose -.-> CHEBI_17234
ing4_NaCl["NaCl"]
CultureMech_000578 --> ing4_NaCl
CHEBI_26710["CHEBI:26710"]
ing4_NaCl -.-> CHEBI_26710
ing5_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
CultureMech_000578 --> ing5_MgSO4_x_7_H2O
CHEBI_31795["CHEBI:31795"]
ing5_MgSO4_x_7_H2O -.-> CHEBI_31795
ing6_Agar["Agar"]
CultureMech_000578 --> ing6_Agar
CHEBI_2509["CHEBI:2509"]
ing6_Agar -.-> CHEBI_2509
Ingredients (7)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Bacto peptone | 5 G_PER_L | ||
| 2 | Beef extract | 3 G_PER_L | ||
| 3 | Yeast extract | 0.2 G_PER_L | ||
| 4 |
Glucose
C6H12O6 180.156 g/mol
|
5 G_PER_L |
CHEBI:17234
glucose
|
|
| 5 |
NaCl
Cl.Na 58.443 g/mol
|
0.5 G_PER_L |
CHEBI:26710
sodium chloride
|
|
| 6 |
MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
|
1.5 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
|
| 7 | Agar | 15 G_PER_L |
CHEBI:2509
agar
|
Preparation
- Adjust to pH 7.0
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:13.491121Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 1140 |
| 2026-03-13T06:18:56.518414Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000578 |
| 2026-03-17T06:30:48.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:07.616975+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "PYG MEDIUM (E)" to "pyg_medium_e" for consistent matching |
| 2026-06-05T07:41:43.062060+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. |
| 2026-10-07T13:32:40.086487+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. |