Overview
- External ontology
- mediadive.medium:1550 (source link unavailable) — EX-LM MEDIUM
- Applications
-
- Microbial cultivation
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1550.pdf
Composition
flowchart LR
CultureMech_001028["ex_lm_medium"]
ing0_Casitone["Casitone"]
CultureMech_001028 --> ing0_Casitone
ing1_Yeast_extract["Yeast extract"]
CultureMech_001028 --> ing1_Yeast_extract
ing2_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
CultureMech_001028 --> ing2_MgSO4_x_7_H2O
CHEBI_31795["CHEBI:31795"]
ing2_MgSO4_x_7_H2O -.-> CHEBI_31795
ing3_Distilled_water["Distilled water"]
CultureMech_001028 --> ing3_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing3_Distilled_water -.-> CHEBI_15377
Ingredients (4)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Casitone | 5.0 G_PER_L | DSMZ Medium 1550 lists 5.0 g/L Casitone; this casein digest is retained as an opaque complex component. | |
| 2 | Yeast extract | 5.0 G_PER_L |
FOODON:03315426
yeast extract
|
DSMZ Medium 1550 lists 5.0 g/L yeast extract. |
| 3 |
MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
|
2.0 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
DSMZ Medium 1550 lists 2.0 g/L MgSO4 x 7 H2O. |
| 4 |
Distilled water
H2O 18.015 g/mol
|
1000.0 ML_PER_L |
CHEBI:15377
water
|
DSMZ Medium 1550 makes the recipe with 1000.0 ml distilled water. |
Preparation
- pH needs no adjustment.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:14.810421Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 1550 |
| 2026-03-13T06:19:00.574158Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:001028 |
| 2026-03-17T06:29:48.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:12.204685+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "EX-LM MEDIUM" to "ex_lm_medium" for consistent matching |
| 2026-06-05T07:40:59.773910+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 1 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-09-12T00:00:00-07:00 | repair_dsmz_1550_ex_lm_score15.py | RESOLVED_DSMZ_1550_EX_LM_SCORE15 | DSMZ Medium 1550 defines EX-LM Medium as 5.0 g/L Casitone, 5.0 g/L yeast extract, 2.0 g/L MgSO4 x 7 H2O, and 1000.0 ml distilled water, with no pH adjustment. |