Overview
- External ontology
- UTEX:soilwater-bar-medium (source link unavailable) — Soilwater: BAR Medium
- Applications
-
- Algae cultivation
- Phytoplankton culture
- Microalgae research
- Notes
- UTEX prepares Soilwater: BAR Medium by steaming Green House Soil, barley grains, optional CaCO3, and dH2O.
Composition
flowchart LR
CultureMech_000224["soilwater_bar_medium"]
ing0_Green_House_Soil["Green House Soil"]
CultureMech_000224 --> ing0_Green_House_Soil
ing1_Barley_grains["Barley grains"]
CultureMech_000224 --> ing1_Barley_grains
ing2_CaCO3["CaCO3"]
CultureMech_000224 --> ing2_CaCO3
CHEBI_3311["CHEBI:3311"]
ing2_CaCO3 -.-> CHEBI_3311
ing3_dH2O["dH2O"]
CultureMech_000224 --> ing3_dH2O
CHEBI_15377["CHEBI:15377"]
ing3_dH2O -.-> CHEBI_15377
Ingredients (4)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 | Green House Soil | 1 tsp per 200 mL VARIABLE | UTEX lists 1 tsp per 200 mL Green House Soil. | |
| 2 | Barley grains | 3 grains per 200 mL VARIABLE | UTEX lists 3 barley grains per 200 mL, added after dH2O. | |
| 3 |
CaCO3
CO3.Ca 100.086 g/mol
Fisher C 64
|
0.05 MILLIMOLAR |
CHEBI:3311
calcium carbonate
|
UTEX lists optional 1 mg CaCO3 per 200 mL final medium; final 0.05 mM. |
| 4 |
dH2O
H2O 18.015 g/mol
|
1000 ML_PER_L |
CHEBI:15377
water
|
Converted from 200 mL dH2O per 200 mL final medium. |
Preparation
- Combine Green House Soil, barley grains, optional CaCO3, and dH2O.
- Cover and steam for 2 consecutive days, 3 hours on each day.
- Refrigerate for at least 24 hours, then bring to room temperature before use.
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-28T00:00:00+00:00 | utex-import | Imported from UTEX Culture Collection | Source ID: soilwater-bar-medium, URL: https://utex.org/products/soilwater-bar-medium |
| 2026-03-13T06:18:53.615549Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000224 |
| 2026-03-17T19:45:04.532417+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "Soilwater: BAR Medium" to "soilwater_bar_medium" for consistent matching |
| 2026-05-16T09:02:56.115819+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=1; references.reference_id->reference=2; category->lowercase=1 |
| 2026-05-16T09:11:01.328552+00:00 | migrate_preparation_steps.py | MIGRATED_PREPARATION_STEPS | instruction->action+description for 9 step(s) |
| 2026-08-30T00:58:30.975534+00:00 | repair_utex_ingredients.py | REPAIRED_UTEX_COMPOSITION | Restored 4 ingredient name(s) and amount(s) from a re-fetched UTEX capture. The original fetcher read fixed column positions, so the row ordinal was stored as the ingredient name, the component name as the amount, and the Amount column was never read; concentration was then filled in as G_PER_L regardless. Source: https://utex.org/pages/algal-culture-media, captured 2026-08-29T17:46:40.207779. |
| 2026-09-06T00:00:00-07:00 | repair_utex_soilwater_score35.py | RESOLVED_UTEX_SOILWATER_SCORE35 | UTEX prepares Soilwater: BAR Medium by steaming Green House Soil, barley grains, optional CaCO3, and dH2O. |