py_medium

CultureMech:002780 bacterial COMPLEX LIQUID
Original name: PY MEDIUM

Overview

External ontology
mediadive.medium:J428 (source link unavailable) — PY MEDIUM
Applications
  • Microbial cultivation
pH
7.0
Notes
Source: JCM | Link: https://www.jcm.riken.jp/cgi-bin/jcm/jcm_grmd?GRMD=428

Composition

flowchart LR
    CultureMech_002780["py_medium"]
    ing0_Peptone["Peptone"]
    CultureMech_002780 --> ing0_Peptone
    ing1_Yeast_extract["Yeast extract"]
    CultureMech_002780 --> ing1_Yeast_extract
    ing2_K2HPO4["K2HPO4"]
    CultureMech_002780 --> ing2_K2HPO4
    CHEBI_131527["CHEBI:131527"]
    ing2_K2HPO4 -.-> CHEBI_131527
    ing3_NaH2PO4["NaH2PO4"]
    CultureMech_002780 --> ing3_NaH2PO4
    CHEBI_37585["CHEBI:37585"]
    ing3_NaH2PO4 -.-> CHEBI_37585
    ing4_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
    CultureMech_002780 --> ing4_MgSO4_x_7_H2O
    CHEBI_31795["CHEBI:31795"]
    ing4_MgSO4_x_7_H2O -.-> CHEBI_31795

Ingredients (5)

# Ingredient Concentration Ontology Notes
1 Peptone 0.25 G_PER_L
2 Yeast extract 0.25 G_PER_L
3 K2HPO4
HO4P.2K 174.174 g/mol
0.1 G_PER_L CHEBI:131527
dipotassium hydrogen phosphate
4 NaH2PO4
H2O4P.Na 119.976 g/mol
0.05 G_PER_L CHEBI:37585
sodium dihydrogenphosphate
5 MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
0.02 G_PER_L CHEBI:31795
magnesium sulfate heptahydrate

Preparation

  1. Adjust pH to 7.0.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-26T17:53:16.588529Z mediadive-import Imported from MediaDive Source: JCM, ID: J428
2026-03-13T06:19:15.667375Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:002780
2026-03-17T06:29:54.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:45:29.094436+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "PY MEDIUM" to "py_medium" for consistent matching
2026-06-05T07:41:42.940987+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.
2026-06-10T07:47:10.553258+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.
2026-10-07T14:33:27.670564+00:00 codex CURATED_MEDIUM_CONCENTRATION_SOURCE_EVIDENCE Exact medium/source membership, ingredient inventory/forms, physical-state conditions, literal snippets, and arithmetic checked. Stock boundaries, source-only rows, preparation context, and variants remain explicit follow-up tasks; secondary chemical mappings unchanged.