methermicoccus_methanogen_medium

CultureMech:000246 archaea COMPLEX LIQUID
Original name: METHERMICOCCUS (METHANOGEN) MEDIUM

Overview

External ontology
mediadive.medium:1084 (source link unavailable) — METHERMICOCCUS (METHANOGEN) MEDIUM
Applications
  • Microbial cultivation
pH range
{'min': 6.0, 'max': 6.5}
Notes
Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium1084.pdf

Composition

flowchart LR
    CultureMech_000246["methermicoccus_methanogen_medium"]
    ing0_KCl["KCl"]
    CultureMech_000246 --> ing0_KCl
    CHEBI_32588["CHEBI:32588"]
    ing0_KCl -.-> CHEBI_32588
    ing1_NH4Cl["NH4Cl"]
    CultureMech_000246 --> ing1_NH4Cl
    CHEBI_31206["CHEBI:31206"]
    ing1_NH4Cl -.-> CHEBI_31206
    ing2_K2HPO4["K2HPO4"]
    CultureMech_000246 --> ing2_K2HPO4
    CHEBI_131527["CHEBI:131527"]
    ing2_K2HPO4 -.-> CHEBI_131527
    ing3_NaCl["NaCl"]
    CultureMech_000246 --> ing3_NaCl
    CHEBI_26710["CHEBI:26710"]
    ing3_NaCl -.-> CHEBI_26710
    ing4_MgCl2_x_6_H2O["MgCl2 x 6 H2O"]
    CultureMech_000246 --> ing4_MgCl2_x_6_H2O
    CHEBI_86345["CHEBI:86345"]
    ing4_MgCl2_x_6_H2O -.-> CHEBI_86345
    ing5_Yeast_extract["Yeast extract"]
    CultureMech_000246 --> ing5_Yeast_extract
    ing6_Sodium_resazurin["Sodium resazurin"]
    CultureMech_000246 --> ing6_Sodium_resazurin
    CHEBI_8806["CHEBI:8806"]
    ing6_Sodium_resazurin -.-> CHEBI_8806
    ing7_Na2CO3["Na2CO3"]
    CultureMech_000246 --> ing7_Na2CO3
    CHEBI_29377["CHEBI:29377"]
    ing7_Na2CO3 -.-> CHEBI_29377
    ing8_Methanol["Methanol"]
    CultureMech_000246 --> ing8_Methanol
    CHEBI_17790["CHEBI:17790"]
    ing8_Methanol -.-> CHEBI_17790
    ing9_2_Mercaptoethanesulfonate["2-Mercaptoethanesulfonate"]
    CultureMech_000246 --> ing9_2_Mercaptoethanesulfonate
    CHEBI_17905["CHEBI:17905"]
    ing9_2_Mercaptoethanesulfonate -.-> CHEBI_17905
    ing10_L_Cysteine_HCl_x_H2O["L-Cysteine HCl x H2O"]
    CultureMech_000246 --> ing10_L_Cysteine_HCl_x_H2O
    CHEBI_91248["CHEBI:91248"]
    ing10_L_Cysteine_HCl_x_H2O -.-> CHEBI_91248
    ing11_Na2S_x_9_H2O["Na2S x 9 H2O"]
    CultureMech_000246 --> ing11_Na2S_x_9_H2O
    CHEBI_76209["CHEBI:76209"]
    ing11_Na2S_x_9_H2O -.-> CHEBI_76209
    ing12_Sludge["Sludge"]
    CultureMech_000246 --> ing12_Sludge

Ingredients (13)

# Ingredient Concentration Ontology Notes
1 KCl
Cl.K 74.551 g/mol
0.333007 G_PER_L CHEBI:32588
potassium chloride
2 NH4Cl
Cl.H4N 53.492 g/mol
0.244858 G_PER_L CHEBI:31206
ammonium chloride
3 K2HPO4
HO4P.2K 174.174 g/mol
0.195886 G_PER_L CHEBI:131527
dipotassium hydrogen phosphate
4 NaCl
Cl.Na 58.443 g/mol
23.5064 G_PER_L CHEBI:26710
sodium chloride
5 MgCl2 x 6 H2O
2Cl.6H2O.Mg 203.301 g/mol
9.99021 G_PER_L CHEBI:86345
magnesium dichloride hexahydrate
6 Yeast extract 5.95886 G_PER_L [Merged 2 duplicates: 1.95886, 4.0]
7 Sodium resazurin
C12H7NO4 229.191 g/mol
0.000489716 G_PER_L CHEBI:8806
Resazurin
8 Na2CO3
CO3.2Na 105.988 g/mol
0.979432 G_PER_L CHEBI:29377
sodium carbonate
9 Methanol
CH4O 32.042 g/mol
12.4114 G_PER_L CHEBI:17790
methanol
10 2-Mercaptoethanesulfonate
C2H6O3S2 142.201 g/mol
2.44858 G_PER_L CHEBI:17905
coenzyme M
11 L-Cysteine HCl x H2O
C3H7NO2S.H2O.HCl 175.637 g/mol
0.29383 G_PER_L CHEBI:91248
L-cysteine hydrochloride hydrate
12 Na2S x 9 H2O
9H2O.2Na.S 240.182 g/mol
0.29383 G_PER_L CHEBI:76209
sodium sulfide nonahydrate
13 Sludge 1000 G_PER_L

Preparation

  1. Dissolve ingredients (except carbonate, sludge fluid, methanol, coenzyme M, cysteine and sulfide), then sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add sludge fluid, methanol (50% v/v solution), coenzyme M (sterilized by filtration), cysteine and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Adjust pH of complete medium to 6.0 - 6.5, if necessary.
  2. Add 0.4% yeast extract to sludge from an anaerobic digester, and after gassing with nitrogen gas for a few minutes incubate it at 37°C for 24 hours. Then centrifuge the sludge at 13000 g and autoclave the resulting, clear supernatant in screw-capped vessels under nitrogen gas. The sludge fluid can be stored at 8-12°C in the dark.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-26T17:53:13.328718Z mediadive-import Imported from MediaDive Source: DSMZ, ID: 1084
2026-03-13T03:09:46.887871Z data-quality-cleanup-v1.0 Data quality fixes Merged 1 duplicate ingredient(s)
2026-03-13T06:18:53.748349Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:000246
2026-03-17T17:06:12.000000Z mediaingredientmech-enrichment-v1.0 Added MediaIngredientMech links Linked ingredients to MediaIngredientMech identifiers
2026-03-17T19:45:04.652847+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "METHERMICOCCUS (METHANOGEN) MEDIUM" to "methermicoccus_methanogen_medium" for consistent matching
2026-05-16T09:02:57.671495+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS category->lowercase=1
2026-05-20T06:00:46.341097+00:00 migrate_ph_range.py MIGRATED_PH_RANGE ph_range '6-6.5' -> {'min': 6.0, 'max': 6.5}
2026-06-05T07:40:14.961976+00:00 mim-legacy-to-chebi-migration-v1.0 Refreshed legacy MediaIngredientMech links to CHEBI keying Replaced 10 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme.
2026-06-10T07:46:42.332752+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.