Overview
- External ontology
- TOGO:M2339 — Nutrient Agar
- Applications
-
- Microbial cultivation
- pH
- 7.0
- Notes
- TOGO M2339 / DSMZ Medium 1 defines Nutrient Agar using DSMZ Medium 1. DSMZ Medium 1 lists, per liter, 5 g Peptone, 3 g Meat extract, 15 g Agar if necessary, and 1000 ml Distilled water. Adjust pH to 7.0.
Composition
flowchart LR
CultureMech_008926["nutrient_agar"]
ing0_Peptone["Peptone"]
CultureMech_008926 --> ing0_Peptone
ing1_Meat_extract["Meat extract"]
CultureMech_008926 --> ing1_Meat_extract
ing2_Agar__if_necessary["Agar, if necessary"]
CultureMech_008926 --> ing2_Agar__if_necessary
CHEBI_2509["CHEBI:2509"]
ing2_Agar__if_necessary -.-> CHEBI_2509
ing3_Distilled_water["Distilled water"]
CultureMech_008926 --> ing3_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing3_Distilled_water -.-> CHEBI_15377
Ingredients (4)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Peptone | 5.0 G_PER_L |
MICRO:0000178 (source link unavailable)
Peptone
|
DSMZ Medium 1 lists 5 g/L Peptone. |
| 2 | Meat extract | 3.0 G_PER_L | DSMZ Medium 1 lists 3 g/L Meat extract; this generic complex extract is retained without an ontology grounding. | |
| 3 | Agar, if necessary | 15.0 G_PER_L |
CHEBI:2509
agar
|
DSMZ Medium 1 lists 15 g/L Agar, if necessary. |
| 4 |
Distilled water
H2O 18.015 g/mol
|
1.0 L |
CHEBI:15377
water
|
DSMZ Medium 1 lists 1000 ml Distilled water. |
Preparation
- Adjust pH to 7.0.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:56.367625Z | togo-import | Imported from TOGO Medium | Source: TOGO, ID: M2339 |
| 2026-01-28T19:48:41.944525Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-03-13T06:20:01.329673Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:008926 |
| 2026-03-17T06:30:54.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:20.047200+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "Nutrient Agar" to "nutrient_agar" for consistent matching |
| 2026-06-05T07:40:36.330275+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. |
| 2026-09-11T00:00:00-07:00 | repair_togo_m2339_m2340_score15.py | RESOLVED_TOGO_M2339_M2340_SCORE15 | TOGO M2339 / DSMZ Medium 1 defines Nutrient Agar using DSMZ Medium 1. DSMZ Medium 1 lists, per liter, 5 g Peptone, 3 g Meat extract, 15 g Agar if necessary, and 1000 ml Distilled water. Adjust pH to 7.0. Corrected the imported water unit artifact, grounded the disclosed simple and protein-hydrolysate components, kept Meat extract intentionally unmapped, and linked the record to DSMZ Medium 1. |