Mc_general_salts_SO4free

Ontology mapping

Primary identifier: kgmicrobe.ingredient:mc_general_salts_so4free
Notes: Imported from CultureBotHT (consolidated_media.json (media-only)). Used in 22 CultureBot media; samples: McCas_formate_SO4Free_BicarbFree, Mc_defined_formate, Mc_defined_H2…. No CAS-RN or CHEBI mapping available; reviewed on 2026-05-11 as a sulfate-free Mc-series general salts stock/pre-mix. Component-level recipe transcribed from the CultureBotHT media definitions Mixes tab on 2026-09-07.

Nutritional roles

Role
MINERAL_SOURCE
Confidence
1.0
Evidence
- Reference text
  CultureBotHT media definitions Mixes tab
  Reference type
  DATABASE_ENTRY
  Url
  https://docs.google.com/spreadsheets/d/1lNNW8BtrJL3pBlsnwvrQRKLU-9asECU_qaBfZ36Ft84
  Excerpt
  Mc_general_salts_SO4free
  Curator note
  Mc_general_salts_SO4free is a stock of inorganic potassium, magnesium, calcium, and chloride salts for Mc media; the source lists only chloride salts, preserving the sulfate-free intent of the formulation.

Synonyms (1)

Synonym	Type	Source	Occurrences
Mc_general_salts_SO4free	RAW_TEXT	culturebotht

Evidence (1)

DATABASE_MATCH via MIM curation (#114)

Mc_general_salts_SO4free is a named, recurring multi-component preparation (22 media). Searched CHEBI, NCIT, MeSH, FOODON and ENVO by label and synonym with normalisation: no term denotes it, and none could -- it is a lab preparation rather than a substance. Takes the STOCK_SOLUTION convention used by the existing mapped records: a kgmicrobe.ingredient: mint, with no parent because a multi-component mix does not narrow to any single compound (#114).

Material components

Method: RECIPE_TRANSCRIPTION
Completeness: COMPLETE

Component	Identifier	Scope	Concentration
KCl	`CHEBI:32588`	MIM_CATALOG	0.67 G_PER_L
magnesium chloride hexahydrate	`CHEBI:86345`	MIM_CATALOG	11.2 G_PER_L
calcium chloride	`CHEBI:3312`	MIM_CATALOG	0.21 G_PER_L

Decomposition evidence

RECIPE_SOURCE https://docs.google.com/spreadsheets/d/1lNNW8BtrJL3pBlsnwvrQRKLU-9asECU_qaBfZ36Ft84 — Mixes!1134:1140 Mc_general_salts_SO4free

CultureBotHT's media definitions Mixes tab defines Mc_general_salts_SO4free as a 2.0X general salts stock for Mc media containing 0.67 g/L KCl, 11.2 g/L magnesium chloride hexahydrate, and 0.21 g/L calcium chloride.

CURATED_DATASET https://docs.google.com/spreadsheets/d/11koiUdEUco1rXg9zL6KrfOBikW38O7Fhef-uBzXUctM — Compound=Calcium chloride

CultureBotHT's compounds-to-CAS crosswalk maps Calcium chloride to CAS 10043-52-4 and carries Calcium chloride dihydrate as a distinct row on CAS 10035-04-8, supporting anhydrous CaCl2/CHEBI:3312 for the Mixes-tab calcium chloride component.

Occurrence statistics

Total occurrences: 22
Distinct media: 22

Curation history

Timestamp	Curator	Action	New status	Changes
2026-04-29T06:51:33.117170+00:00	audit_add_remaining_culturebotht	CREATED_AS_UNMAPPED	UNMAPPED	Imported from CultureBotHT (consolidated_media.json (media-only)). Used in 22 CultureBot media; samples: McCas_formate_SO4Free_BicarbFree, Mc_defined_formate, Mc_defined_H2…. No CAS-RN or CHEBI mapping available; curator review needed.
2026-05-11T09:05:00Z	mediaingredientmech-agentic-curation LLM	CLASSIFIED_STOCK_SOLUTION	UNMAPPED	Classified as a sulfate-free Mc-series general salts stock/pre-mix and left unmapped pending component-level recipe curation.
2026-08-06T00:00:00+00:00	promote_resolved_unmapped	PROMOTED_TO_MAPPED	MAPPED	Promoted UNMAPPED_0300 -> kgmicrobe.ingredient:mc_general_salts_so4free "Mc_general_salts_SO4free" (FALLBACK_REGISTRY); mapping_status UNMAPPED -> MAPPED, SSSOM row added.
2026-09-07T00:00:00+00:00	mediaingredientmech-agentic-curation LLM	ANNOTATED	MAPPED	Transcribed the CultureBotHT Mixes-tab recipe for Mc_general_salts_SO4free and added complete component partonomy for KCl, magnesium chloride hexahydrate, and anhydrous calcium chloride, plus a source-backed mineral-source role.