Overview
- External ontology
- nbrc.medium:1226 (source link unavailable) — NBRC Medium 1226
- Notes
- Source: NBRC Medium 1226 | Link: https://www.nite.go.jp/nbrc/catalogue/NBRCMediumDetailServlet?NO=1226 The NBRC Medium for Strain GK12 table lists pH as unadjusted, two nested stock solutions, and aseptic anaerobic addition of the filter-sterilized bicarbonate and vitamin solutions plus sterile cysteine and sulfide solutions.
Composition
flowchart LR
CultureMech_007465["1227"]
ing0_NH4Cl["NH4Cl"]
CultureMech_007465 --> ing0_NH4Cl
CHEBI_31206["CHEBI:31206"]
ing0_NH4Cl -.-> CHEBI_31206
ing1_KH2PO4["KH2PO4"]
CultureMech_007465 --> ing1_KH2PO4
CHEBI_63036["CHEBI:63036"]
ing1_KH2PO4 -.-> CHEBI_63036
ing2_MgSO4_7H2O["MgSO4·7H2O"]
CultureMech_007465 --> ing2_MgSO4_7H2O
ing3_CaCl2_2H2O["CaCl2·2H2O"]
CultureMech_007465 --> ing3_CaCl2_2H2O
CHEBI_86158["CHEBI:86158"]
ing3_CaCl2_2H2O -.-> CHEBI_86158
ing4_NaHCO3["NaHCO3"]
CultureMech_007465 --> ing4_NaHCO3
CHEBI_32139["CHEBI:32139"]
ing4_NaHCO3 -.-> CHEBI_32139
ing5_Glucose["Glucose"]
CultureMech_007465 --> ing5_Glucose
CHEBI_17234["CHEBI:17234"]
ing5_Glucose -.-> CHEBI_17234
ing6_Yeast_extract["Yeast extract"]
CultureMech_007465 --> ing6_Yeast_extract
ing7_Na2S_9H2O["Na2S·9H2O"]
CultureMech_007465 --> ing7_Na2S_9H2O
CHEBI_76209["CHEBI:76209"]
ing7_Na2S_9H2O -.-> CHEBI_76209
ing8_Cysteine_HCl["Cysteine-HCl"]
CultureMech_007465 --> ing8_Cysteine_HCl
CHEBI_91247["CHEBI:91247"]
ing8_Cysteine_HCl -.-> CHEBI_91247
ing9_Resazurin["Resazurin"]
CultureMech_007465 --> ing9_Resazurin
CHEBI_8806["CHEBI:8806"]
ing9_Resazurin -.-> CHEBI_8806
ing10_Trace_element_solution_["Trace element solution*"]
CultureMech_007465 --> ing10_Trace_element_solution_
ing11_Vitamin_solution__["Vitamin solution**"]
CultureMech_007465 --> ing11_Vitamin_solution__
ing12_Distilled_water["Distilled water"]
CultureMech_007465 --> ing12_Distilled_water
CHEBI_15377["CHEBI:15377"]
ing12_Distilled_water -.-> CHEBI_15377
Ingredients (13)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
NH4Cl
Cl.H4N 53.492 g/mol
|
1 G_PER_L |
CHEBI:31206
ammonium chloride
|
|
| 2 |
KH2PO4
H2O4P.K 136.084 g/mol
|
0.27 G_PER_L |
CHEBI:63036
potassium dihydrogen phosphate
|
|
| 3 | MgSO4·7H2O | 0.25 G_PER_L | ||
| 4 |
CaCl2·2H2O
Ca.2Cl.2H2O 147.014 g/mol
|
0.15 G_PER_L |
CHEBI:86158
CaCl2 x 2 H2O
|
|
| 5 |
NaHCO3
CHO3.Na 84.006 g/mol
|
2.5 G_PER_L |
CHEBI:32139
sodium hydrogencarbonate
|
|
| 6 |
Glucose
C6H12O6 180.156 g/mol
|
10 G_PER_L |
CHEBI:17234
glucose
|
|
| 7 | Yeast extract | 3 G_PER_L |
FOODON:03315426
Yeast extract
|
|
| 8 |
Na2S·9H2O
9H2O.2Na.S 240.182 g/mol
|
30 G_PER_L |
CHEBI:76209
sodium sulfide nonahydrate
|
|
| 9 |
Cysteine-HCl
C3H7NO2S.HCl 157.622 g/mol
|
30 G_PER_L |
CHEBI:91247
L-cysteine hydrochloride
|
|
| 10 |
Resazurin
C12H7NO4 229.191 g/mol
|
1 MG_PER_L |
CHEBI:8806
Resazurin
|
|
| 11 | Trace element solution* | 1 ML_PER_L | ||
| 12 | Vitamin solution** | 1 ML_PER_L | ||
| 13 |
Distilled water
H2O 18.015 g/mol
|
1 L |
CHEBI:15377
water
|
Preparation
- Mix ingredients except vitamin, bicarbonate, cysteine, and sulfide solutions.
- Dispense the medium into culture vessels under a stream of N2/CO2 (80/20) and seal with butyl rubber stoppers.
- Autoclave at 121 C for 15 minutes.
- Filter-sterilize the bicarbonate and vitamin solutions.
- Aseptically and anaerobically add vitamin solution, bicarbonate solution, and cysteine and sulfide solutions using sterile syringes.
Solutions
Trace element solution
| Ingredient | Concentration | Notes |
|---|---|---|
| Nitrilotriacetic acid (NTA) | 12.8 G_PER_L | |
| FeCl3·6H2O | 1.35 G_PER_L | |
| MnCl2·4H2O | 0.1 G_PER_L | |
| CoCl2·6H2O | 24 MG_PER_L | |
| AlCl3 | 13.3 MG_PER_L | |
| ZnCl2 | 0.1 G_PER_L | |
| CuCl2·2H2O | 25 MG_PER_L | |
| H3BO3 | 10 MG_PER_L | |
| Na2MoO4·2H2O | 24 MG_PER_L | |
| Na2WO4·2H2O | 3 MG_PER_L | |
| NiCl2·6H2O | 0.12 G_PER_L | |
| Na2SeO3 | 26 MG_PER_L | |
| Distilled water | 1 L |
Vitamin solution
| Ingredient | Concentration | Notes |
|---|---|---|
| Biotin | 2 MG_PER_L | |
| Folic acid | 2 MG_PER_L | |
| Pyridoxine-HCl | 10 MG_PER_L | |
| Thiamine-HCl | 5 MG_PER_L | |
| Riboflavin | 5 MG_PER_L | |
| Nicotinic acid | 5 MG_PER_L | |
| Ca-pantothenate | 5 MG_PER_L | |
| p-Aminobenzoic acid | 1 MG_PER_L | |
| Vitamin B12 | 5 MG_PER_L | |
| Lipoic acid | 5 MG_PER_L | |
| Distilled water | 1 L |
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-02-20T00:22:36.038693Z | nbrc-import | Imported from NBRC | Source: NBRC, Media No. 1226, URL: http://www.nbrc.nite.go.jp/NBRC2/NBRCMediumDetailServlet?NO=1226. Imported via ethical web scraping. |
| 2026-03-09T08:04:29.361934+00:00 | solution-migrator-v1.0 | Migrated solutions from ingredients to solutions array | Moved 1 solution(s) from ingredients |
| 2026-03-13T03:08:58.216843Z | data-quality-cleanup-v1.0 | Data quality fixes | Merged 86 duplicate ingredient(s) |
| 2026-03-13T06:19:49.167668Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:007465 |
| 2026-03-14T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default solution name |
| 2026-05-16T09:03:06.607135+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1 |
| 2026-08-19T21:54:22.674782+00:00 | recover_nbrc_composition.py | Recovered composition from source HTML | Re-parsed the NBRC medium 1226 composition table from the preserved scrape; 13 ingredient(s) restored, 2 stock solution(s) nested rather than flattened, 1 unparsed solution blob(s) removed (#299). |
| 2026-08-20T19:01:15.823919+00:00 | apply_mim_groundings.py | Adopted MIM published grounding | Grounded 17 ingredient(s) from MIM's ingredient_mappings.sssom.tsv (2026-08-18), exactMatch only, where this record carried no CHEBI term (#308). |
| 2026-08-26T02:12:32.861877+00:00 | apply_mim_groundings.py | Adopted MIM published grounding | Grounded 1 ingredient(s) from MIM's ingredient_mappings.sssom.tsv (2026-08-18), exactMatch only, where this record carried no CHEBI term (#308). |
| 2026-09-07T00:00:00-07:00 | repair_nbrc_partial_score25.py | RESOLVED_NBRC_PARTIAL_SCORE25 | Preserved the recovered NBRC Medium 1226 composition table. |