Overview
- External ontology
- nbrc.medium:228 (source link unavailable) — NBRC Medium 228
- pH
- 7.3
- Notes
- Source: NBRC Medium 228 | Link: https://www.nite.go.jp/nbrc/catalogue/NBRCMediumDetailServlet?NO=228 NBRC lists Bennett's Agar with yeast extract, beef extract, N-Z-Amine A, glucose, distilled water, and agar at final pH 7.3.
Composition
flowchart LR
CultureMech_007479["Bennett's Agar"]
ing0_Yeast_extract["Yeast extract"]
CultureMech_007479 --> ing0_Yeast_extract
ing1_Beef_extract["Beef extract"]
CultureMech_007479 --> ing1_Beef_extract
ing2_N_Z_Amine_A["N-Z-Amine A"]
CultureMech_007479 --> ing2_N_Z_Amine_A
ing3_Glucose["Glucose"]
CultureMech_007479 --> ing3_Glucose
CHEBI_17234["CHEBI:17234"]
ing3_Glucose -.-> CHEBI_17234
ing4_Distilled_water["Distilled water"]
CultureMech_007479 --> ing4_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing4_Distilled_water -.-> CHEBI_15377
ing5_Agar["Agar"]
CultureMech_007479 --> ing5_Agar
CHEBI_2509["CHEBI:2509"]
ing5_Agar -.-> CHEBI_2509
Ingredients (6)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Yeast extract | 1 G_PER_L | ||
| 2 | Beef extract | 1 G_PER_L | ||
| 3 | N-Z-Amine A | 2 G_PER_L | ||
| 4 |
Glucose
C6H12O6 180.156 g/mol
|
10 G_PER_L |
CHEBI:17234
glucose
|
|
| 5 |
Distilled water
H2O 18.015 g/mol
|
1 L |
CHEBI:15377
water
|
|
| 6 | Agar | 20 G_PER_L |
CHEBI:2509
agar
|
Preparation
- Dissolve ingredients in distilled water
- Adjust pH if needed
- Sterilize by autoclaving
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-02-20T00:22:35.940581Z | nbrc-import | Imported from NBRC | Source: NBRC, Media No. 228, URL: http://www.nbrc.nite.go.jp/NBRC2/NBRCMediumDetailServlet?NO=228. Imported via ethical web scraping. |
| 2026-03-13T03:09:30.945229Z | data-quality-cleanup-v1.0 | Data quality fixes | Merged 6 duplicate ingredient(s) |
| 2026-03-13T06:19:49.210265Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:007479 |
| 2026-03-14T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default concentration for ingredient: Yeast extract1gBeef extract1gN-Z-Amine A2gGlucose10gDistilled water1LAgar20gpH 7.3 |
| 2026-05-16T09:03:06.662376+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1 |
| 2026-08-19T21:54:22.825114+00:00 | recover_nbrc_composition.py | Recovered composition from source HTML | Re-parsed the NBRC medium 228 composition table from the preserved scrape; 6 ingredient(s) restored, 0 stock solution(s) nested rather than flattened, 0 unparsed solution blob(s) removed (#299). |
| 2026-08-20T19:01:15.942799+00:00 | apply_mim_groundings.py | Adopted MIM published grounding | Grounded 3 ingredient(s) from MIM's ingredient_mappings.sssom.tsv (2026-08-18), exactMatch only, where this record carried no CHEBI term (#308). |
| 2026-09-11T00:00:00-07:00 | repair_nbrc_229_score15.py | RESOLVED_NBRC_229_SCORE15 | Added the NBRC Medium 228 source term and official title, structured the final pH, added the official NBRC reference, and mirrored CHEBI terms for glucose, distilled water, and agar into MediaIngredientMech mappings. |