pfennigs_medium

CultureMech:003027 bacterial DEFINED LIQUID
Original name: PFENNIG'S MEDIUM

Overview

External ontology
mediadive.medium:J681 (source link unavailable) — PFENNIG'S MEDIUM
Applications
  • Microbial cultivation
pH
7.2
Notes
Source: JCM | Link: https://www.jcm.riken.jp/cgi-bin/jcm/jcm_grmd?GRMD=681

Composition

flowchart LR
    CultureMech_003027["pfennigs_medium"]
    ing0_K2HPO4["K2HPO4"]
    CultureMech_003027 --> ing0_K2HPO4
    CHEBI_131527["CHEBI:131527"]
    ing0_K2HPO4 -.-> CHEBI_131527
    ing1_NH4Cl["NH4Cl"]
    CultureMech_003027 --> ing1_NH4Cl
    CHEBI_31206["CHEBI:31206"]
    ing1_NH4Cl -.-> CHEBI_31206
    ing2_KCl["KCl"]
    CultureMech_003027 --> ing2_KCl
    CHEBI_32588["CHEBI:32588"]
    ing2_KCl -.-> CHEBI_32588
    ing3_MgSO4_x_7_H2O["MgSO4 x 7 H2O"]
    CultureMech_003027 --> ing3_MgSO4_x_7_H2O
    CHEBI_31795["CHEBI:31795"]
    ing3_MgSO4_x_7_H2O -.-> CHEBI_31795
    ing4_CaCl2_x_2_H2O["CaCl2 x 2 H2O"]
    CultureMech_003027 --> ing4_CaCl2_x_2_H2O
    CHEBI_86158["CHEBI:86158"]
    ing4_CaCl2_x_2_H2O -.-> CHEBI_86158
    ing5_Na2S_x_9_H2O["Na2S x 9 H2O"]
    CultureMech_003027 --> ing5_Na2S_x_9_H2O
    CHEBI_76209["CHEBI:76209"]
    ing5_Na2S_x_9_H2O -.-> CHEBI_76209
    ing6_NaHCO3["NaHCO3"]
    CultureMech_003027 --> ing6_NaHCO3
    CHEBI_32139["CHEBI:32139"]
    ing6_NaHCO3 -.-> CHEBI_32139
    ing7_Vitamin_B12["Vitamin B12"]
    CultureMech_003027 --> ing7_Vitamin_B12
    CHEBI_176843["CHEBI:176843"]
    ing7_Vitamin_B12 -.-> CHEBI_176843
    ing8_Acetate["Acetate"]
    CultureMech_003027 --> ing8_Acetate
    CHEBI_30089["CHEBI:30089"]
    ing8_Acetate -.-> CHEBI_30089
    ing9_Thiosulfate["Thiosulfate"]
    CultureMech_003027 --> ing9_Thiosulfate
    CHEBI_26977["CHEBI:26977"]
    ing9_Thiosulfate -.-> CHEBI_26977
    ing10_HCl["HCl"]
    CultureMech_003027 --> ing10_HCl
    CHEBI_17883["CHEBI:17883"]
    ing10_HCl -.-> CHEBI_17883
    ing11_FeCl2_x_4_H2O["FeCl2 x 4 H2O"]
    CultureMech_003027 --> ing11_FeCl2_x_4_H2O
    CHEBI_86249["CHEBI:86249"]
    ing11_FeCl2_x_4_H2O -.-> CHEBI_86249
    ing12_ZnCl2["ZnCl2"]
    CultureMech_003027 --> ing12_ZnCl2
    CHEBI_49976["CHEBI:49976"]
    ing12_ZnCl2 -.-> CHEBI_49976
    ing13_MnCl2_x_4_H2O["MnCl2 x 4 H2O"]
    CultureMech_003027 --> ing13_MnCl2_x_4_H2O
    CHEBI_86368["CHEBI:86368"]
    ing13_MnCl2_x_4_H2O -.-> CHEBI_86368
    ing14_H3BO3["H3BO3"]
    CultureMech_003027 --> ing14_H3BO3
    CHEBI_33118["CHEBI:33118"]
    ing14_H3BO3 -.-> CHEBI_33118
    ing15_CoCl2_x_6_H2O["CoCl2 x 6 H2O"]
    CultureMech_003027 --> ing15_CoCl2_x_6_H2O
    CHEBI_53503["CHEBI:53503"]
    ing15_CoCl2_x_6_H2O -.-> CHEBI_53503
    ing16_CuCl2_x_2_H2O["CuCl2 x 2 H2O"]
    CultureMech_003027 --> ing16_CuCl2_x_2_H2O
    CHEBI_86318["CHEBI:86318"]
    ing16_CuCl2_x_2_H2O -.-> CHEBI_86318
    ing17_NiCl2_x_6_H2O["NiCl2 x 6 H2O"]
    CultureMech_003027 --> ing17_NiCl2_x_6_H2O
    CHEBI_34887["CHEBI:34887"]
    ing17_NiCl2_x_6_H2O -.-> CHEBI_34887
    ing18_Na2MoO4_x_2_H2O["Na2MoO4 x 2 H2O"]
    CultureMech_003027 --> ing18_Na2MoO4_x_2_H2O
    CHEBI_75213["CHEBI:75213"]
    ing18_Na2MoO4_x_2_H2O -.-> CHEBI_75213

Ingredients (19)

# Ingredient Concentration Ontology Notes
1 K2HPO4
HO4P.2K 174.174 g/mol
0.25 G_PER_L CHEBI:131527
dipotassium hydrogen phosphate
2 NH4Cl
Cl.H4N 53.492 g/mol
0.34 G_PER_L CHEBI:31206
ammonium chloride
3 KCl
Cl.K 74.551 g/mol
0.34 G_PER_L CHEBI:32588
potassium chloride
4 MgSO4 x 7 H2O
7H2O.Mg.O4S 246.473 g/mol
0.5 G_PER_L CHEBI:31795
magnesium sulfate heptahydrate
5 CaCl2 x 2 H2O
Ca.2Cl.2H2O 147.014 g/mol
0.25 G_PER_L CHEBI:86158
calcium chloride dihydrate
6 Na2S x 9 H2O
9H2O.2Na.S 240.182 g/mol
0.3 G_PER_L CHEBI:76209
sodium sulfide nonahydrate
7 NaHCO3
CHO3.Na 84.006 g/mol
1.5 G_PER_L CHEBI:32139
sodium hydrogencarbonate
8 Vitamin B12 2e-05 G_PER_L CHEBI:176843
vitamin B12
9 Acetate
C2H3O2 59.044 g/mol
0.118088 G_PER_L CHEBI:30089
acetate
10 Thiosulfate 10 MILLIMOLAR CHEBI:26977
thiosulfate
11 HCl
HCl 36.461 g/mol
2.5 G_PER_L CHEBI:17883
hydrogen chloride
12 FeCl2 x 4 H2O
Cl2Fe.4H2O 198.811 g/mol
1.5 G_PER_L CHEBI:86249
iron dichloride tetrahydrate
13 ZnCl2
2Cl.Zn 136.296 g/mol
0.07 G_PER_L CHEBI:49976
zinc dichloride
14 MnCl2 x 4 H2O
Cl2Mn.4H2O 197.904 g/mol
0.1 G_PER_L CHEBI:86368
manganese(II) chloride tetrahydrate
15 H3BO3
H3BO3 61.833 g/mol
0.006 G_PER_L CHEBI:33118
boric acid
16 CoCl2 x 6 H2O
2Cl.Co.6H2O 237.929 g/mol
0.19 G_PER_L CHEBI:53503
cobalt chloride hexahydrate
17 CuCl2 x 2 H2O
Cl2Cu.2H2O 170.482 g/mol
0.002 G_PER_L CHEBI:86318
copper(II) chloride dihydrate
18 NiCl2 x 6 H2O
Cl2Ni 129.599 g/mol
0.024 G_PER_L CHEBI:34887
nickel dichloride
19 Na2MoO4 x 2 H2O
2H2O.MoO4.2Na 241.946 g/mol
0.036 G_PER_L CHEBI:75213
sodium molybdate dihydrate

Preparation

  1. Add the following components after autoclaving:
  2. Adjust pH of the medium to 7.2.
  3. Dissolve FeCl2 x 4H2O first in HCl. Then dilute in distilled water and add the remaining salts.

Target organisms

No target organisms are recorded.

Provenance

Merged from 1 source record.

TimestampCuratorActionNotes
2026-01-26T17:53:17.279376Z mediadive-import Imported from MediaDive Source: JCM, ID: J681
2026-03-13T06:19:17.271998Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:003027
2026-03-17T06:30:49.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:45:30.941186+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "PFENNIG'S MEDIUM" to "pfennigs_medium" for consistent matching
2026-06-05T07:41:41.557451+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 19 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-06-10T07:47:10.114620+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.
2026-08-06T03:05:52.740241+00:00 merge_recipes.py MERGED_RECIPES merged 1 source recipe(s) on fingerprint 4e5aaa0827b8b65fd22bde6b8fab436acdac1d2e1eb6a26deda9423f230b110d