pyg_medium_k

CultureMech:009528 bacterial COMPLEX LIQUID
Original name: PYG Medium (K)

Overview

External ontology
TOGO:M3010 — PYG Medium (K)
Applications
  • Microbial cultivation
Notes
Source: https://togomedium.org/medium/M3010 Original source: JCM - JCM_M1338 Original URL: https://www.jcm.riken.jp/cgi-bin/jcm/jcm_grmd?GRMD=1338

Composition

flowchart LR
    CultureMech_009528["pyg_medium_k"]
    ing0_Distilled_water["Distilled water"]
    CultureMech_009528 --> ing0_Distilled_water
    CHEBI_15377["CHEBI:15377"]
    ing0_Distilled_water -.-> CHEBI_15377
    ing1_Yeast_extract["Yeast extract"]
    CultureMech_009528 --> ing1_Yeast_extract
    ing2_KH2PO4["KH2PO4"]
    CultureMech_009528 --> ing2_KH2PO4
    CHEBI_63036["CHEBI:63036"]
    ing2_KH2PO4 -.-> CHEBI_63036
    ing3_Resazurin["Resazurin"]
    CultureMech_009528 --> ing3_Resazurin
    CHEBI_8806["CHEBI:8806"]
    ing3_Resazurin -.-> CHEBI_8806
    ing4_Trypticase_peptone["Trypticase peptone"]
    CultureMech_009528 --> ing4_Trypticase_peptone
    ing5_L_Cysteine_HCl_H2O["L-Cysteine·HCl·H2O"]
    CultureMech_009528 --> ing5_L_Cysteine_HCl_H2O
    ing6_Peptone["Peptone"]
    CultureMech_009528 --> ing6_Peptone
    ing7_N2["N2"]
    CultureMech_009528 --> ing7_N2
    CHEBI_17997["CHEBI:17997"]
    ing7_N2 -.-> CHEBI_17997

Ingredients (8)

# Ingredient Concentration Ontology Notes
1 Distilled water
H2O 18.015 g/mol
940 G_PER_L CHEBI:15377
water
Role: Solvating media; Properties: Defined component, Simple component, Inorganic compound
2 Yeast extract 10 G_PER_L Role: Nutrient source; Properties: Undefined component
3 KH2PO4
H2O4P.K 136.084 g/mol
2 G_PER_L CHEBI:63036
potassium dihydrogen phosphate
Role: Buffer; Properties: Defined component, Simple component, Inorganic compound
4 Resazurin
C12H7NO4 229.191 g/mol
1 G_PER_L CHEBI:8806
Resazurin
Role: pH dependent redox indicator; Properties: Simple component, Organic compound, Defined component
5 Trypticase peptone 5 G_PER_L Properties: Undefined component
6 L-Cysteine·HCl·H2O 0.5 G_PER_L Properties: Defined component, Simple component, Organic compound
7 Peptone 5 G_PER_L
8 N2
N2 28.014 g/mol
variable VARIABLE CHEBI:17997
dinitrogen
Properties: Gas

Solutions

Salt solution (see Medium [M695])

Dose: 40 G_PER_L

Cross-reference to Medium M695

Hemin solution (see Medium [M470])

Dose: 10 G_PER_L

Cross-reference to Medium M470

Menadione solution (see Medium [M470])

Dose: 10 G_PER_L

Cross-reference to Medium M470

Target organisms

No target organisms are recorded.

Provenance

Merged from 1 source record.

TimestampCuratorActionNotes
2026-01-27T06:35:53.680630Z togo-import Imported from TOGO Medium Source: JCM, ID: M3010
2026-01-28T19:48:11.892399Z 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
2026-03-09T08:04:19.627510+00:00 solution-migrator-v1.0 Migrated solutions from ingredients to solutions array Moved 3 solution(s) from ingredients
2026-03-13T06:20:06.611917Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:009528
2026-03-14T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added default solution name; Added default solution name; Added default solution name
2026-03-17T06:29:50.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:46:25.626534+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "PYG Medium (K)" to "pyg_medium_k" for consistent matching
2026-05-16T09:04:29.834529+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=2
2026-06-05T07:41:43.098368+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 3 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-06-10T07:47:10.601051+00:00 primary-term-label-canonicalization-v1.0 Canonicalized primary term label to OBO canonical (OAK) 1 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi.
2026-08-06T03:05:53.956720+00:00 merge_recipes.py MERGED_RECIPES merged 1 source recipe(s) on fingerprint d41633c49eac85340bed5f43848b84eb436246f40b87b5af38eabecfd19d7759