Overview
- External ontology
- TOGO:M2829 — LB agar
- Applications
-
- Microbial cultivation
- Notes
- Source: https://togomedium.org/medium/M2829 Commercial Product: LB Medium (Luria-Bertani, Miller formulation) Supplier: Multiple suppliers (Difco, Sigma, etc.) Catalog: Multiple (L3522 Sigma, 244520 BD) Source: https://www.laboratorynotes.com/preparation-of-luria-bertani-lb-miller-broth/ Accessed: 2026-03-28 Constituent composition researched from product specification.
Composition
flowchart LR
CultureMech_009373["lb_agar"]
ing0_Tryptone["Tryptone"]
CultureMech_009373 --> ing0_Tryptone
ing1_Yeast_extract["Yeast extract"]
CultureMech_009373 --> ing1_Yeast_extract
ing2_Sodium_chloride["Sodium chloride"]
CultureMech_009373 --> ing2_Sodium_chloride
CHEBI_26710["CHEBI:26710"]
ing2_Sodium_chloride -.-> CHEBI_26710
Ingredients (3)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
Tryptone
Multiple suppliers (Difco, Sigma, etc.) LB Medium (Luria-Bertani, Miller formulation) Multiple (L3522 Sigma, 244520 BD)
|
10.0 G_PER_L |
MICRO:0000182 (source link unavailable)
tryptone
|
Pancreatic digest of casein providing amino acids, peptides, and nitrogen; Constituent of LB Medium (Luria-Bertani, Miller formulation) commercial product |
| 2 |
Yeast extract
Multiple suppliers (Difco, Sigma, etc.) LB Medium (Luria-Bertani, Miller formulation) Multiple (L3522 Sigma, 244520 BD)
|
5.0 G_PER_L |
FOODON:03315426
yeast extract
|
Autodigest of Saccharomyces cerevisiae providing vitamins, amino acids, and trace elements; Constituent of LB Medium (Luria-Bertani, Miller formulation) commercial product |
| 3 |
Sodium chloride
Cl.Na 58.443 g/mol
Multiple suppliers (Difco, Sigma, etc.) LB Medium (Luria-Bertani, Miller formulation) Multiple (L3522 Sigma, 244520 BD)
|
10.0 G_PER_L |
CHEBI:26710
sodium chloride
|
Maintains osmotic equilibrium (Miller formulation); Constituent of LB Medium (Luria-Bertani, Miller formulation) commercial product |
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-27T06:35:57.340703Z | togo-import | Imported from TOGO Medium | Source: TOGO, ID: M2829 |
| 2026-02-03T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added default concentration for ingredient: LB agar |
| 2026-03-13T06:20:05.933986Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:009373 |
| 2026-03-17T19:46:24.863370+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "LB agar" to "lb_agar" for consistent matching |
| 2026-05-16T09:03:38.764965+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1 |