Overview
- External ontology
- TOGO:M2089 — PPG medium
- Applications
-
- Microbial cultivation
- Notes
- Source: https://togomedium.org/medium/M2089 Original source: NBRC - NBRC_M1400 Original URL: https://www.nite.go.jp/nbrc/catalogue/NBRCMediumDetailServlet?NO=1400
Composition
flowchart LR
CultureMech_008679["ppg_medium"]
ing0_Distilled_water["Distilled water"]
CultureMech_008679 --> ing0_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing0_Distilled_water -.-> CHEBI_15377
ing1_Yeast_extract["Yeast extract"]
CultureMech_008679 --> ing1_Yeast_extract
ing2_K2HPO4["K2HPO4"]
CultureMech_008679 --> ing2_K2HPO4
CHEBI_131527["CHEBI:131527"]
ing2_K2HPO4 -.-> CHEBI_131527
ing3__NH4_2SO4["(NH4)2SO4"]
CultureMech_008679 --> ing3__NH4_2SO4
CHEBI_62946["CHEBI:62946"]
ing3__NH4_2SO4 -.-> CHEBI_62946
ing4_MgSO4["MgSO4"]
CultureMech_008679 --> ing4_MgSO4
CHEBI_32599["CHEBI:32599"]
ing4_MgSO4 -.-> CHEBI_32599
ing5_NaH2PO4["NaH2PO4"]
CultureMech_008679 --> ing5_NaH2PO4
CHEBI_37585["CHEBI:37585"]
ing5_NaH2PO4 -.-> CHEBI_37585
ing6_Polypropylene_glycol_2000__PPG_2000_["Polypropylene glycol 2000 (PPG 2000)"]
CultureMech_008679 --> ing6_Polypropylene_glycol_2000__PPG_2000_
ing7_Agar__if_needed_["Agar (if needed)"]
CultureMech_008679 --> ing7_Agar__if_needed_
Ingredients (8)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
Distilled water
H2O 18.015 g/mol
|
1 G_PER_L |
CHEBI:15377
water
|
Role: Solvating media; Properties: Inorganic compound, Simple component, Defined component |
| 2 | Yeast extract | 0.2 G_PER_L | Role: Nutrient source; Properties: Undefined component | |
| 3 |
K2HPO4
HO4P.2K 174.174 g/mol
|
2 G_PER_L |
CHEBI:131527
dipotassium hydrogen phosphate
|
Role: Buffer; Properties: Inorganic compound, Simple component, Defined component |
| 4 |
(NH4)2SO4
2H4N.O4S 132.141 g/mol
|
2 G_PER_L |
CHEBI:62946
ammonium sulfate
|
Role: Nitrogen source; Properties: Defined component, Simple component, Inorganic compound |
| 5 |
MgSO4
Mg.O4S 120.368 g/mol
|
0.2 G_PER_L |
CHEBI:32599
magnesium sulfate
|
Role: Mineral source; Properties: Defined component, Simple component, Inorganic compound |
| 6 |
NaH2PO4
H2O4P.Na 119.976 g/mol
|
1 G_PER_L |
CHEBI:37585
sodium dihydrogenphosphate
|
Role: Buffer; Properties: Simple component, Defined component, Inorganic compound |
| 7 | Polypropylene glycol 2000 (PPG 2000) | 2 G_PER_L | Role: Carbon source; Properties: Simple component, Defined component | |
| 8 | Agar (if needed) | 18 G_PER_L | Role: Solidifying component |
Target organisms
No target organisms are recorded.
Provenance
Merged from 1 source record.
- ppg_medium (CultureMech:008679)
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:59.033677Z | togo-import | Imported from TOGO Medium | Source: NBRC, ID: M2089 |
| 2026-01-28T19:48:12.580876Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-03-13T06:19:59.315601Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:008679 |
| 2026-03-17T06:29:52.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:17.952803+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "PPG medium" to "ppg_medium" for consistent matching |
| 2026-06-05T07:41:42.423694+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 5 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-10T07:47:10.367731+00:00 | primary-term-label-canonicalization-v1.0 | Canonicalized primary term label to OBO canonical (OAK) | 3 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi. |
| 2026-08-06T03:05:53.411610+00:00 | merge_recipes.py | MERGED_RECIPES | merged 1 source recipe(s) on fingerprint 5d19135a55a776e112a776f82cc761c3cb13fa1248bb4f0754931b301cfede3f |