pyg_medium_d

CultureMech:002913 bacterial COMPLEX LIQUID
Original name: PYG MEDIUM (D)

Overview

External ontology
mediadive.medium:J564 (source link unavailable) — PYG MEDIUM (D)
Applications
  • Microbial cultivation
pH
6.9
Notes
Source: JCM | Link: https://www.jcm.riken.jp/cgi-bin/jcm/jcm_grmd?GRMD=564

Composition

flowchart LR
    CultureMech_002913["pyg_medium_d"]
    ing0_Polypeptone["Polypeptone"]
    CultureMech_002913 --> ing0_Polypeptone
    ing1_Tryptone["Tryptone"]
    CultureMech_002913 --> ing1_Tryptone
    ing2_Yeast_extract["Yeast extract"]
    CultureMech_002913 --> ing2_Yeast_extract
    ing3_Glucose["Glucose"]
    CultureMech_002913 --> ing3_Glucose
    CHEBI_17234["CHEBI:17234"]
    ing3_Glucose -.-> CHEBI_17234
    ing4_CaCl2["CaCl2"]
    CultureMech_002913 --> ing4_CaCl2
    CHEBI_3312["CHEBI:3312"]
    ing4_CaCl2 -.-> CHEBI_3312
    ing5_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
    CultureMech_002913 --> ing5_MgSO4_x_7_H2O
    CHEBI_31795["CHEBI:31795"]
    ing5_MgSO4_x_7_H2O -.-> CHEBI_31795
    ing6_K2HPO4["K2HPO4"]
    CultureMech_002913 --> ing6_K2HPO4
    CHEBI_131527["CHEBI:131527"]
    ing6_K2HPO4 -.-> CHEBI_131527
    ing7_KH2PO4["KH2PO4"]
    CultureMech_002913 --> ing7_KH2PO4
    CHEBI_63036["CHEBI:63036"]
    ing7_KH2PO4 -.-> CHEBI_63036
    ing8_NaHCO3["NaHCO3"]
    CultureMech_002913 --> ing8_NaHCO3
    CHEBI_32139["CHEBI:32139"]
    ing8_NaHCO3 -.-> CHEBI_32139
    ing9_NaCl["NaCl"]
    CultureMech_002913 --> ing9_NaCl
    CHEBI_26710["CHEBI:26710"]
    ing9_NaCl -.-> CHEBI_26710

Ingredients (10)

# Ingredient Concentration Ontology Notes
1 Polypeptone 5 G_PER_L Copied from referenced JCM Medium 423
2 Tryptone 5 G_PER_L Copied from referenced JCM Medium 423
3 Yeast extract 10 G_PER_L Copied from referenced JCM Medium 423
4 Glucose
C6H12O6 180.156 g/mol
10 G_PER_L CHEBI:17234
glucose
Copied from referenced JCM Medium 423
5 CaCl2
Ca.2Cl 110.984 g/mol
0.2 G_PER_L CHEBI:3312
calcium dichloride
Copied from referenced JCM Medium 423
6 MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
0.4 G_PER_L CHEBI:31795
magnesium sulfate heptahydrate
Copied from referenced JCM Medium 423
7 K2HPO4
HO4P.2K 174.174 g/mol
1 G_PER_L CHEBI:131527
dipotassium hydrogen phosphate
Copied from referenced JCM Medium 423
8 KH2PO4
H2O4P.K 136.084 g/mol
1 G_PER_L CHEBI:63036
potassium dihydrogen phosphate
Copied from referenced JCM Medium 423
9 NaHCO3
CHO3.Na 84.006 g/mol
10 G_PER_L CHEBI:32139
sodium hydrogencarbonate
Copied from referenced JCM Medium 423
10 NaCl
Cl.Na 58.443 g/mol
2 G_PER_L CHEBI:26710
sodium chloride
Copied from referenced JCM Medium 423

Preparation

  1. Prepare Medium No. 423 and adjust pH to 6.9. Add 0.5 g/L L-cysteine x HCl x H2O after the medium is boiled, then, dispense into culture vessels. Prepare the medium under a N2 atmosphere.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-26T17:53:16.947417Z mediadive-import Imported from MediaDive Source: JCM, ID: J564
2026-02-03T11:26:55.333781 quality-tagger-v1.0 Added data quality flag Marked as incomplete_composition due to placeholder ingredients
2026-03-13T06:19:16.520846Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:002913
2026-03-17T19:45:30.083709+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "PYG MEDIUM (D)" to "pyg_medium_d" for consistent matching
2026-04-04T21:48:41.485354 resolve_option_c_references RESOLVED_REFERENCE Resolved reference by copying from pyg_medium_b (CultureMech:002776)
2026-04-04T22:06:16.817187 resolve_option_c_references RESOLVED_REFERENCE Resolved reference by copying from pyg_medium_b (CultureMech:002776)
2026-05-16T08:58:13.456435+00:00 migrate_data_quality_flags.py MIGRATED_DATA_QUALITY_FLAGS dict(2 keys) -> list(1 entries)
2026-06-05T07:41:43.055865+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 7 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-06-10T07:47:10.586003+00:00 primary-term-label-canonicalization-v1.0 Canonicalized primary term label to OBO canonical (OAK) 2 primary term(s); ingredient name resolved by OAK sqlite:obo:chebi.