bs_107_medium

CultureMech:010323 bacterial COMPLEX LIQUID
Original name: Bs 107 Medium

Overview

External ontology
TOGO:M904 — Bs 107 Medium
Applications
  • Microbial cultivation
pH
7.2
Notes
TOGO M904 preserves JCM Medium 867 as Bs 107 Medium: use JCM Medium 866, replacing yeast extract with 3.0 micrograms/L Na2SeO3 x 5 H2O. JCM Medium 867 now returns no formulation; current JCM Medium 866 still provides the base medium.

Composition

flowchart LR
    CultureMech_010323["bs_107_medium"]
    ing0_Na2SeO3_x_5_H2O["Na2SeO3 x 5 H2O"]
    CultureMech_010323 --> ing0_Na2SeO3_x_5_H2O
    CHEBI_131361["CHEBI:131361"]
    ing0_Na2SeO3_x_5_H2O -.-> CHEBI_131361

Ingredients (1)

# Ingredient Concentration Ontology Notes
1 Na2SeO3 x 5 H2O
5H2O.2Na.O3Se 263.012 g/mol
3.0 MICROG_PER_L CHEBI:131361
disodium selenite pentahydrate
 TOGO M904 specifies 3.0 micrograms/L Na2SeO3 x 5 H2O in place of yeast extract.

Preparation

  1. Use JCM Medium 866, replacing yeast extract with 3.0 micrograms/L Na2SeO3 x 5 H2O.

Solutions

Desulfotomaculum BS Medium

Dose: 1000 ML_PER_L

CultureMech:003212

TOGO M904 states to use JCM Medium 866 as the base Bs 107 medium; current JCM Medium 866 adjusts the prepared medium to pH 7.2 under N2-CO2.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-27T06:35:55.935769Z togo-import Imported from TOGO Medium Source: JCM, ID: M904
2026-02-03T11:27:22.851576 quality-tagger-v1.0 Added data quality flag Marked as incomplete_composition due to placeholder ingredients
2026-03-13T06:20:12.995935Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:010323
2026-03-17T19:46:31.941261+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "Bs 107 Medium" to "bs_107_medium" for consistent matching
2026-08-06T07:56:36.080570+00:00 curate_placeholder_composition.py REMOVED_PLACEHOLDER_INGREDIENT Removed the 'See source for composition' placeholder ingredient; the record carries no imported composition and is flagged incomplete (#175).
2026-09-08T00:00:00-07:00 repair_bs107_score35.py RESOLVED_BS107_SCORE35 TOGO M904 preserves stale JCM Medium 867 as JCM Medium 866 with yeast extract replaced by 3.0 micrograms/L Na2SeO3 x 5 H2O; the current JCM Medium 867 URL returns no formulation.
2026-09-08T00:00:00-07:00 repair_bs107_score35.py LINKED_BS107_SCORE35_CHILDREN Added or refreshed reciprocal parent-child link for data/normalized_yaml/bacterial/bs_107_medium.yaml.