Overview
- External ontology
- mediadive.medium:797 (source link unavailable) — MODIFIED CHOPPED MEAT MEDIUM
- Applications
-
- Microbial cultivation
- pH
- 7.0
- Notes
- Source: DSMZ | Link: https://www.dsmz.de/microorganisms/medium/pdf/DSMZ_Medium797.pdf
Composition
flowchart LR
CultureMech_001941["modified_chopped_meat_medium"]
ing0_Ground_beef["Ground beef"]
CultureMech_001941 --> ing0_Ground_beef
ing1_NaOH["NaOH"]
CultureMech_001941 --> ing1_NaOH
CHEBI_32145["CHEBI:32145"]
ing1_NaOH -.-> CHEBI_32145
ing2_Trypticase["Trypticase"]
CultureMech_001941 --> ing2_Trypticase
ing3_Yeast_extract["Yeast extract"]
CultureMech_001941 --> ing3_Yeast_extract
ing4_K2HPO4["K2HPO4"]
CultureMech_001941 --> ing4_K2HPO4
CHEBI_131527["CHEBI:131527"]
ing4_K2HPO4 -.-> CHEBI_131527
ing5_Resazurin["Resazurin"]
CultureMech_001941 --> ing5_Resazurin
CHEBI_8806["CHEBI:8806"]
ing5_Resazurin -.-> CHEBI_8806
ing6_Agar["Agar"]
CultureMech_001941 --> ing6_Agar
CHEBI_2509["CHEBI:2509"]
ing6_Agar -.-> CHEBI_2509
ing7_L_Cysteine_HCl_x_H2O["L-Cysteine HCl x H2O"]
CultureMech_001941 --> ing7_L_Cysteine_HCl_x_H2O
CHEBI_91248["CHEBI:91248"]
ing7_L_Cysteine_HCl_x_H2O -.-> CHEBI_91248
ing8_Vitamin_K1["Vitamin K1"]
CultureMech_001941 --> ing8_Vitamin_K1
CHEBI_18067["CHEBI:18067"]
ing8_Vitamin_K1 -.-> CHEBI_18067
ing9_Ethanol["Ethanol"]
CultureMech_001941 --> ing9_Ethanol
CHEBI_16236["CHEBI:16236"]
ing9_Ethanol -.-> CHEBI_16236
ing10_Haemin["Haemin"]
CultureMech_001941 --> ing10_Haemin
CHEBI_50385["CHEBI:50385"]
ing10_Haemin -.-> CHEBI_50385
Ingredients (11)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Ground beef | 500 G_PER_L | ||
| 2 |
NaOH
HO.Na 39.997 g/mol
|
26.0 G_PER_L |
CHEBI:32145
sodium hydroxide
|
[Merged 2 duplicates: 25.0, 1.0] |
| 3 | Trypticase | 30 G_PER_L |
MICRO:0000175 (source link unavailable)
Trypticase peptone
|
|
| 4 | Yeast extract | 5 G_PER_L | ||
| 5 |
K2HPO4
HO4P.2K 174.174 g/mol
|
5 G_PER_L |
CHEBI:131527
dipotassium hydrogen phosphate
|
|
| 6 |
Resazurin
C12H7NO4 229.191 g/mol
|
0.001 G_PER_L |
CHEBI:8806
Resazurin
|
|
| 7 | Agar | 20 G_PER_L |
CHEBI:2509
agar
|
(if required) |
| 8 |
L-Cysteine HCl x H2O
C3H7NO2S.H2O.HCl 175.637 g/mol
|
0.5 G_PER_L |
CHEBI:91248
L-cysteine hydrochloride hydrate
|
|
| 9 |
Vitamin K1
C31H46O2 450.707 g/mol
|
0.15 G_PER_L |
CHEBI:18067
phylloquinone
|
|
| 10 |
Ethanol
C2H6O 46.069 g/mol
|
28.5 G_PER_L |
CHEBI:16236
ethanol
|
|
| 11 |
Haemin
C34H32ClFeN4O4 651.952 g/mol
|
0.49505 G_PER_L |
CHEBI:50385
hemin
|
Preparation
- Mix meat, water and NaOH, and bring to a boil with stirring. Cool to room temperature, skim fat off surface, and filter, retaining both meat particles and filtrate. To the filtrate add sufficient distilled water to restore volume to 1000 ml. To this filtrate add:
- Boil and cool medium under 80% N2, 10% H2, 10% CO2, and add:
- Adjust medium for final pH 7.0. Anaerobically dispense 7 ml into tubes containing meat particles (use 1 part meat to 5 parts fluid) under the same gas phase.
- Store solution in brown bottle under refrigeration. Discard after one month.
- Autoclave at 121°C for 15 min.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-26T17:53:12.294764Z | mediadive-import | Imported from MediaDive | Source: DSMZ, ID: 797 |
| 2026-01-28T19:48:28.645991Z | chebi-enrichment | Added CHEBI ontology terms to ingredients | Enriched using MicrobeMediaParam and MediaDive chemical mappings |
| 2026-03-13T03:09:18.136575Z | data-quality-cleanup-v1.0 | Data quality fixes | Merged 1 duplicate ingredient(s) |
| 2026-03-13T06:19:08.678101Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:001941 |
| 2026-03-17T06:30:26.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:45:21.146274+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "MODIFIED CHOPPED MEAT MEDIUM" to "modified_chopped_meat_medium" for consistent matching |
| 2026-06-05T07:41:36.444089+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 8 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-06-10T07:47:08.604342+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. |
| 2026-09-22T00:03:26.686152+00:00 | repair_rejected_peptone_groundings.py | CORRECTED_REJECTED_PEPTONE_GROUNDING | CultureMech #484. /ingredients/2/term/id: Trypticase CHEBI:78018 -> MICRO:0000175 (replace_term). Reviewed identities: https://github.com/CultureBotAI/MediaIngredientMech/tree/24562493919391df4468a4285b7c997960cc8868. Publication resolver: MIM label index 9f09e4fb97fb0e6cbbd6f25baca40b36512adb88. MediaDive source IDs and concentrations preserved. |