Overview
- External ontology
- mediadive.medium:781 (source link unavailable) — DUNG EXTRACT AGAR
- Applications
-
- Microbial cultivation
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium781.pdf
Composition
flowchart LR
CultureMech_001917["dung_extract_agar"]
ing0_Dung_extract["Dung extract"]
CultureMech_001917 --> ing0_Dung_extract
ing1_Malt_extract["Malt extract"]
CultureMech_001917 --> ing1_Malt_extract
ing2_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
CultureMech_001917 --> ing2_MgSO4_x_7_H2O
CHEBI_31795["CHEBI:31795"]
ing2_MgSO4_x_7_H2O -.-> CHEBI_31795
ing3_Ca_NO3_2_x_4_H2O["Ca(NO3)2 x 4 H2O"]
CultureMech_001917 --> ing3_Ca_NO3_2_x_4_H2O
CHEBI_86159["CHEBI:86159"]
ing3_Ca_NO3_2_x_4_H2O -.-> CHEBI_86159
ing4_K2HPO4["K2HPO4"]
CultureMech_001917 --> ing4_K2HPO4
CHEBI_131527["CHEBI:131527"]
ing4_K2HPO4 -.-> CHEBI_131527
ing5_Peptone["Peptone"]
CultureMech_001917 --> ing5_Peptone
ing6_Agar["Agar"]
CultureMech_001917 --> ing6_Agar
CHEBI_2509["CHEBI:2509"]
ing6_Agar -.-> CHEBI_2509
Ingredients (7)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Dung extract | 100 G_PER_L | ||
| 2 | Malt extract | 5 G_PER_L | ||
| 3 |
MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
|
0.5 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
|
| 4 |
Ca(NO3)2 x 4 H2O
Ca.4H2O.2NO3 236.146 g/mol
|
0.72 G_PER_L |
CHEBI:86159
calcium nitrate tetrahydrate
|
|
| 5 |
K2HPO4
HO4P.2K 174.174 g/mol
|
0.25 G_PER_L |
CHEBI:131527
dipotassium hydrogen phosphate
|
|
| 6 | Peptone | 0.1 G_PER_L | ||
| 7 | Agar | 15 G_PER_L |
CHEBI:2509
agar
|
Preparation
- Dung extract: Boil an average sized piece of horse dung (fresh or frozen) for two hours in 150 ml water using a water bath; filter and use immediately. Sterilize at 121°C for 15 min.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:12.222356Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 781 |
| 2026-03-13T06:19:08.392708Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:001917 |
| 2026-03-17T06:30:18.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:20.830389+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "DUNG EXTRACT AGAR" to "dung_extract_agar" for consistent matching |
| 2026-06-05T07:40:59.166162+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. |
| 2026-06-10T07:46:56.575344+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. |
| 2026-10-07T12:21:30.028294+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. |