modified_chopped_meat_medium

CultureMech:001941 bacterial COMPLEX SOLID_AGAR
Original name: MODIFIED CHOPPED MEAT MEDIUM

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

  1. 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:
  2. Boil and cool medium under 80% N2, 10% H2, 10% CO2, and add:
  3. 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.
  4. Store solution in brown bottle under refrigeration. Discard after one month.
  5. Autoclave at 121°C for 15 min.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
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.