postgate_j_rs_medium_c

CultureMech:010074 bacterial COMPLEX LIQUID
Original name: Postgate J. R'S Medium C

Overview

External ontology
TOGO:M670 — Postgate J. R'S Medium C
Applications
  • Microbial cultivation
Notes
Source: https://togomedium.org/medium/M670 Original source: JCM - JCM_M654 Original URL: https://www.jcm.riken.jp/cgi-bin/jcm/jcm_grmd?GRMD=654

Composition

flowchart LR
    CultureMech_010074["postgate_j_rs_medium_c"]
    ing0_Distilled_water["Distilled water"]
    CultureMech_010074 --> ing0_Distilled_water
    CHEBI_15377["CHEBI:15377"]
    ing0_Distilled_water -.-> CHEBI_15377
    ing1_MgSO4_7H2O["MgSO4・7H2O"]
    CultureMech_010074 --> ing1_MgSO4_7H2O
    CHEBI_31795["CHEBI:31795"]
    ing1_MgSO4_7H2O -.-> CHEBI_31795
    ing2_Yeast_extract["Yeast extract"]
    CultureMech_010074 --> ing2_Yeast_extract
    ing3_CaCl2_2H2O["CaCl2・2H2O"]
    CultureMech_010074 --> ing3_CaCl2_2H2O
    CHEBI_86158["CHEBI:86158"]
    ing3_CaCl2_2H2O -.-> CHEBI_86158
    ing4_KH2PO4["KH2PO4"]
    CultureMech_010074 --> ing4_KH2PO4
    CHEBI_63036["CHEBI:63036"]
    ing4_KH2PO4 -.-> CHEBI_63036
    ing5_NH4Cl["NH4Cl"]
    CultureMech_010074 --> ing5_NH4Cl
    CHEBI_31206["CHEBI:31206"]
    ing5_NH4Cl -.-> CHEBI_31206
    ing6_FeSO4_7H2O["FeSO4・7H2O"]
    CultureMech_010074 --> ing6_FeSO4_7H2O
    CHEBI_75836["CHEBI:75836"]
    ing6_FeSO4_7H2O -.-> CHEBI_75836
    ing7_Na2SO4["Na2SO4"]
    CultureMech_010074 --> ing7_Na2SO4
    CHEBI_32149["CHEBI:32149"]
    ing7_Na2SO4 -.-> CHEBI_32149
    ing8_Sodium_citrate["Sodium citrate"]
    CultureMech_010074 --> ing8_Sodium_citrate
    CHEBI_53258["CHEBI:53258"]
    ing8_Sodium_citrate -.-> CHEBI_53258
    ing9_N2["N2"]
    CultureMech_010074 --> ing9_N2
    CHEBI_17997["CHEBI:17997"]
    ing9_N2 -.-> CHEBI_17997

Ingredients (10)

# Ingredient Concentration Ontology Notes
1 Distilled water
H2O 18.015 g/mol
900 G_PER_L CHEBI:15377
water
Role: Solvating media; Properties: Simple component, Inorganic compound, Defined component
2 MgSO4・7H2O
7H2O.Mg.O4S 246.473 g/mol
0.06 G_PER_L CHEBI:31795
magnesium sulfate heptahydrate
Role: Mineral source; Properties: Defined component, Simple component, Inorganic compound
3 Yeast extract 1 G_PER_L Role: Nutrient source; Properties: Undefined component
4 CaCl2・2H2O
Ca.2Cl.2H2O 147.014 g/mol
0.06 G_PER_L CHEBI:86158
calcium chloride dihydrate
Role: Mineral source; Properties: Defined component, Simple component, Inorganic compound
5 KH2PO4
H2O4P.K 136.084 g/mol
0.5 G_PER_L CHEBI:63036
potassium dihydrogen phosphate
Role: Buffer; Properties: Simple component, Inorganic compound, Defined component
6 NH4Cl
Cl.H4N 53.492 g/mol
1 G_PER_L CHEBI:31206
ammonium chloride
Role: Nitrogen source; Properties: Defined component, Simple component, Inorganic compound
7 FeSO4・7H2O
Fe.7H2O.O4S 278.013 g/mol
4 G_PER_L CHEBI:75836
iron(2+) sulfate heptahydrate
Role: Mineral source; Properties: Inorganic compound, Simple component, Defined component
8 Na2SO4
2Na.O4S 142.043 g/mol
4.5 G_PER_L CHEBI:32149
sodium sulfate
Role: Mineral source; Properties: Simple component, Inorganic compound, Defined component
9 Sodium citrate
C6H5O7.3Na 258.069 g/mol
0.3 G_PER_L CHEBI:53258
sodium citrate
Role: Buffer; Properties: Defined component, Organic compound, Simple component
10 N2
N2 28.014 g/mol
variable VARIABLE CHEBI:17997
dinitrogen
Properties: Gas

Solutions

6.0% Sodium lactate solution (filter--sterilized)

Dose: 100 G_PER_L

Role: Carbon source; Properties: Defined component, Organic compound, Solution

Target organisms

No target organisms are recorded.

Provenance

Merged from 1 source record.

TimestampCuratorActionNotes
2026-01-27T06:35:55.503809Z togo-import Imported from TOGO Medium Source: JCM, ID: M670
2026-01-28T19:48:26.738680Z chebi-enrichment Added CHEBI ontology terms to ingredients Enriched using MicrobeMediaParam and MediaDive chemical mappings
2026-02-03T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added default concentration for ingredient: N2
2026-03-09T08:04:44.350187+00:00 solution-migrator-v1.0 Migrated solutions from ingredients to solutions array Moved 1 solution(s) from ingredients
2026-03-13T06:20:11.132802Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:010074
2026-03-14T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added default solution name
2026-03-17T06:30:22.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:46:30.058247+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "Postgate J. R'S Medium C" to "postgate_j_rs_medium_c" for consistent matching
2026-05-16T09:03:19.942572+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=2
2026-06-05T07:40:43.443547+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.
2026-06-10T06:57:32.231984+00:00 mgso4-heptahydrate-term-fix-v1.0 Corrected MgSO4·7H2O primary term grounding to heptahydrate Re-grounded 1 heptahydrate-labelled ingredient(s) from CHEBI:32599 (generic magnesium sulfate) to CHEBI:31795 (magnesium sulfate heptahydrate). Generic/hexahydrate labels untouched.
2026-06-10T07:46:51.303630+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.
2026-08-06T03:05:18.283967+00:00 merge_recipes.py MERGED_RECIPES merged 1 source recipe(s) on fingerprint 28f954f9adf2d76f2b9889a2b8e48d1837562a2aa3668a7915f5fe5ded4b001b