Growth-stimulating factors

CultureMech:011137 bacterial

Overview

Notes
Preserve six existing API-declared stock rates and their prior evidence unchanged. They are not independently measured final volumes or receiving-medium concentrations. Water is an explicit preparation input, and NaOH is unquantified stock titration; no universal working dose is inferred. Full exact-source recipe and stock/preparation tables were inspected. Reconstructed nodes retain explicit source scope; complete prior ingredient/stock assertions, including copied LB mappings and stage conflations, are archived in append-only history. A title alone is not the basis for removal. Unchanged annotations are preserved, not recertified; no new organism-growth association is added.

Stock composition (8)

# Ingredient Concentration Ontology Notes
1 Isobutyric acid 5 G_PER_L mediadive.compound:222 (source link unavailable)
Isobutyric acid
2 Valeric acid 5 G_PER_L mediadive.compound:224 (source link unavailable)
Valeric acid
3 2-Methylbutyric acid 5 G_PER_L mediadive.compound:480 (source link unavailable)
2-Methylbutyric acid
4 3-Methylbutyric acid 5 G_PER_L mediadive.compound:768 (source link unavailable)
3-Methylbutyric acid
5 Caproic acid 2 G_PER_L mediadive.compound:430 (source link unavailable)
Caproic acid
6 Succinic acid 6 G_PER_L mediadive.compound:83 (source link unavailable)
Succinic acid
7 Distilled water 1 L mediadive.compound:4 (source link unavailable)
Distilled water
Correct the importer unit error: 1000 ml / 1000 = 1 L water input per stock preparation, not 1000% v/v, a measured final volume or a receiving-medium concentration.
8 NaOH Source preparation adds NaOH to stock pH 9.0 without a fixed amount or carrier strength. Keep this titration separate from the provider-declared acid rates and water input.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-03-13T06:20:17.774425Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:011137
2026-03-14T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added placeholder ingredients for missing composition
2026-03-14T21:09:20.578642 quality-tagger-v1.0 Added data quality flag Marked as incomplete_composition due to placeholder ingredients
2026-04-04T17:50:12.867842 categorize_unknown_media CATEGORIZED Automated categorization (confidence: 0.30). No clear match, defaulting to bacterial
2026-05-16T09:03:44.433458+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=1
2026-06-10T06:38:17.561102+00:00 kg-fallback-consensus-v1.0 Replaced low-confidence kg_fallback chebi_term with corpus consensus Re-grounded 2 chebi_term(s) to the unanimous reliable CHEBI for the ingredient label seen elsewhere in the corpus (G25 Phase 1, zero external lookups).
2026-06-10T06:56:05.867559+00:00 kg-fallback-llm-curation-v1.0 LLM-curated low-confidence chebi_term (G25 Phase 3) 1 chebi_term(s): curator-named compound resolved via OAK+OLS, or de-grounded as a mixture, or confirmed correct.
2026-10-07T09:01:17.963098+00:00 codex CURATED_SOLUTION_CONCENTRATION_SOURCE_EVIDENCE Source review decision captured at plan timestamp. Exact source IDs, labels, snippets, and arithmetic checked. Unsupported rows retained; no receiving-medium concentration inferred.
2026-10-09T04:52:49.323535+00:00 codex RESTORED_MEDIUM_829_SOURCE_FORMULATIONS_AND_STOCK_SCOPES_WITH_EVIDENCE Restore exact-source medium-829 formulations and stock boundaries, preserve provider rates/nulls and source conflicts, repair quantity units and family scope, and retain prior evidence/history. Each scientific change is linked to an inspected source excerpt; no growth association inferred.