Soybean Casein Digest Agar

CultureMech:007502 bacterial COMPLEX SOLID_AGAR

Overview

External ontology
nbrc.medium:891 (source link unavailable) — NBRC Medium 891
pH range
{'min': 7.1, 'max': 7.5}
Notes
Source: NBRC Medium 891 | Link: https://www.nite.go.jp/nbrc/catalogue/NBRCMediumDetailServlet?NO=891 NBRC lists Soybean Casein Digest Agar with casein peptone, soybean peptone, NaCl, agar, and distilled water at final pH 7.1-7.5.

Composition

flowchart LR
    CultureMech_007502["Soybean Casein Digest Agar"]
    ing0_Casein_peptone["Casein peptone"]
    CultureMech_007502 --> ing0_Casein_peptone
    ing1_Soybean_peptone["Soybean peptone"]
    CultureMech_007502 --> ing1_Soybean_peptone
    ing2_NaCl["NaCl"]
    CultureMech_007502 --> ing2_NaCl
    CHEBI_26710["CHEBI:26710"]
    ing2_NaCl -.-> CHEBI_26710
    ing3_Agar["Agar"]
    CultureMech_007502 --> ing3_Agar
    CHEBI_2509["CHEBI:2509"]
    ing3_Agar -.-> CHEBI_2509
    ing4_Distilled_water["Distilled water"]
    CultureMech_007502 --> ing4_Distilled_water
    CHEBI_15377["CHEBI:15377"]
    ing4_Distilled_water -.-> CHEBI_15377

Ingredients (5)

# Ingredient Concentration Ontology Notes
1 Casein peptone 15 G_PER_L FOODON:03315719
Casein peptone
2 Soybean peptone 5 G_PER_L FOODON:03315720
Soy peptone
3 NaCl
Cl.Na 58.443 g/mol
5 G_PER_L CHEBI:26710
sodium chloride
4 Agar 15 G_PER_L CHEBI:2509
agar
5 Distilled water
H2O 18.015 g/mol
1 L CHEBI:15377
water

Preparation

  1. Prepare the listed Soybean Casein Digest Agar formula with casein peptone, soybean peptone, NaCl, agar, and distilled water.
  2. Adjust the medium to pH 7.1-7.5.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-02-20T00:22:35.982294Z nbrc-import Imported from NBRC Source: NBRC, Media No. 891, URL: http://www.nbrc.nite.go.jp/NBRC2/NBRCMediumDetailServlet?NO=891. Imported via ethical web scraping.
2026-03-13T03:09:04.524269Z data-quality-cleanup-v1.0 Data quality fixes Merged 5 duplicate ingredient(s)
2026-03-13T06:19:49.275698Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:007502
2026-03-14T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added default concentration for ingredient: Casein peptone15gSoybean peptone5gNaCl5gAgar15gDistilled water1LpH 7.1-7.5
2026-05-16T09:03:06.738496+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=1
2026-08-19T21:54:23.036626+00:00 recover_nbrc_composition.py Recovered composition from source HTML Re-parsed the NBRC medium 891 composition table from the preserved scrape; 5 ingredient(s) restored, 0 stock solution(s) nested rather than flattened, 0 unparsed solution blob(s) removed (#299).
2026-08-20T19:01:16.117092+00:00 apply_mim_groundings.py Adopted MIM published grounding Grounded 3 ingredient(s) from MIM's ingredient_mappings.sssom.tsv (2026-08-18), exactMatch only, where this record carried no CHEBI term (#308).
2026-09-11T00:00:00-07:00 repair_nbrc_892_score15.py RESOLVED_NBRC_892_SCORE15 Added the NBRC Medium 891 source term and official title, structured its pH range, grounded every source-listed ingredient, replaced generic preparation instructions with source-specific steps, and added the official NBRC reference.