nutrient_broth_nb_ii

CultureMech:009430 bacterial COMPLEX LIQUID
Original name: Nutrient broth (NB II)

Overview

External ontology
TOGO:M2894 — Nutrient broth (NB II)
Applications
  • Microbial cultivation
Notes
TOGO M2894 records Nutrient broth (NB II) with 3.5 g/L peptone from casein, 2.5 g/L peptone from meat, 2.5 g/L peptone from gelatine, 1.5 g/L yeast extract, 5 g/L NaCl, and incubation at 30 C.

Composition

flowchart LR
    CultureMech_009430["nutrient_broth_nb_ii"]
    ing0_Peptone_from_casein["Peptone from casein"]
    CultureMech_009430 --> ing0_Peptone_from_casein
    ing1_Peptone_from_meat["Peptone from meat"]
    CultureMech_009430 --> ing1_Peptone_from_meat
    ing2_Peptone_from_gelatine["Peptone from gelatine"]
    CultureMech_009430 --> ing2_Peptone_from_gelatine
    ing3_Yeast_extract["Yeast extract"]
    CultureMech_009430 --> ing3_Yeast_extract
    ing4_NaCl["NaCl"]
    CultureMech_009430 --> ing4_NaCl
    CHEBI_26710["CHEBI:26710"]
    ing4_NaCl -.-> CHEBI_26710
    ing5_Distilled_water["Distilled water"]
    CultureMech_009430 --> ing5_Distilled_water
    CHEBI_15377["CHEBI:15377"]
    ing5_Distilled_water -.-> CHEBI_15377

Ingredients (6)

# Ingredient Concentration Ontology Notes
1 Peptone from casein 3.5 G_PER_L FOODON:03315719
Casein peptone
TOGO M2894 lists 3.5 g/L peptone from casein.
2 Peptone from meat 2.5 G_PER_L TOGO M2894 lists 2.5 g/L peptone from meat; the source-specific meat hydrolysate is retained without an ontology grounding.
3 Peptone from gelatine 2.5 G_PER_L TOGO M2894 lists 2.5 g/L peptone from gelatine; the source-specific gelatin hydrolysate is retained without an ontology grounding.
4 Yeast extract 1.5 G_PER_L FOODON:03315426
Yeast extract
TOGO M2894 lists 1.5 g/L Yeast extract.
5 NaCl
Cl.Na 58.443 g/mol
5.0 G_PER_L CHEBI:26710
sodium chloride
TOGO M2894 lists 5.0 g/L NaCl.
6 Distilled water
H2O 18.015 g/mol
1.0 L CHEBI:15377
water
TOGO M2894 records the NB II formulation per 1 L Distilled water.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-27T06:35:57.387722Z togo-import Imported from TOGO Medium Source: TOGO, ID: M2894
2026-01-28T19:48:34.926530Z chebi-enrichment Added CHEBI ontology terms to ingredients Enriched using MicrobeMediaParam and MediaDive chemical mappings
2026-03-13T06:20:06.162865Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:009430
2026-03-17T06:30:39.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:46:25.121730+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "Nutrient broth (NB II)" to "nutrient_broth_nb_ii" for consistent matching
2026-06-05T07:41:40.180490+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 2 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-09-12T00:00:00-07:00 repair_nutrient_broths_score15.py RESOLVED_TOGO_M2894_NBII TOGO M2894 records Nutrient broth (NB II) with 3.5 g/L peptone from casein, 2.5 g/L peptone from meat, 2.5 g/L peptone from gelatine, 1.5 g/L yeast extract, 5 g/L NaCl, and incubation at 30 C.