Overview
- Applications
-
- Algae cultivation
- Phytoplankton culture
- Microalgae research
- Notes
- Full recipe available at https://www.ccap.ac.uk/wp-content/uploads/MR_PPG.pdf
Composition
flowchart LR
CultureMech_000116["ppg"]
ing0_MgSO__7H_O["MgSO .7H O"]
CultureMech_000116 --> ing0_MgSO__7H_O
CHEBI_31795["CHEBI:31795"]
ing0_MgSO__7H_O -.-> CHEBI_31795
ing1_CaCl__6H_O["CaCl .6H O"]
CultureMech_000116 --> ing1_CaCl__6H_O
CHEBI_3312["CHEBI:3312"]
ing1_CaCl__6H_O -.-> CHEBI_3312
ing2_KH_PO["KH PO"]
CultureMech_000116 --> ing2_KH_PO
CHEBI_63036["CHEBI:63036"]
ing2_KH_PO -.-> CHEBI_63036
ing3_Proteose_peptone["Proteose peptone"]
CultureMech_000116 --> ing3_Proteose_peptone
ing4_D_glucose["D-glucose"]
CultureMech_000116 --> ing4_D_glucose
CHEBI_17634["CHEBI:17634"]
ing4_D_glucose -.-> CHEBI_17634
Ingredients (5)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
MgSO .7H O
7H2O.Mg.O4S 246.473 g/mol
|
0.40 G_PER_L |
CHEBI:31795
magnesium sulfate heptahydrate
|
From CCAP Medium MR_PPG.pdf; Curated from CCAP Medium MR_PPG.pdf specification |
| 2 |
CaCl .6H O
Ca.2Cl 110.984 g/mol
|
0.60 G_PER_L |
CHEBI:3312
calcium dichloride
|
From CCAP Medium MR_PPG.pdf; Curated from CCAP Medium MR_PPG.pdf specification |
| 3 |
KH PO
H2O4P.K 136.084 g/mol
|
13.60 G_PER_L |
CHEBI:63036
potassium dihydrogen phosphate
|
From CCAP Medium MR_PPG.pdf; Curated from CCAP Medium MR_PPG.pdf specification |
| 4 | Proteose peptone | 15.0 G_PER_L |
MICRO:0000180 (source link unavailable)
Proteose peptone
|
From CCAP Medium MR_PPG.pdf; Curated from CCAP Medium MR_PPG.pdf specification |
| 5 |
D-glucose
C6H12O6 180.156 g/mol
|
18.0 G_PER_L |
CHEBI:17634
D-glucose
|
From CCAP Medium MR_PPG.pdf; Curated from CCAP Medium MR_PPG.pdf specification |
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-28T00:00:00+00:00 | ccap-import | Imported from CCAP Culture Collection | Source ID: PPG, PDF URL: https://www.ccap.ac.uk/wp-content/uploads/MR_PPG.pdf |
| 2026-02-03T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added placeholder ingredients for missing composition |
| 2026-02-03T11:26:43.590606 | quality-tagger-v1.0 | Added data quality flag | Marked as incomplete_composition due to placeholder ingredients |
| 2026-03-13T06:18:53.204415Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000116 |
| 2026-03-17T19:45:04.155761+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "PPG" to "ppg" for consistent matching |
| 2026-04-04T12:54:54.837981 | batch_process_collection_media | EXPANDED_INGREDIENTS | |
| 2026-05-16T08:57:02.672250+00:00 | migrate_data_quality_flags.py | MIGRATED_DATA_QUALITY_FLAGS | dict(4 keys) -> list(3 entries) |
| 2026-05-16T09:02:56.885132+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=2; references.reference_id->reference=2; category->lowercase=1 |
| 2026-06-10T06:57:11.510050+00:00 | mgso4-heptahydrate-term-fix-v1.0 | Corrected MgSO4·7H2O primary term grounding to heptahydrate | Re-grounded 1 heptahydrate-labelled ingredient(s) from CHEBI:32599 (generic magnesium sulfate) to CHEBI:31795 (magnesium sulfate heptahydrate). Generic/hexahydrate labels untouched. |
| 2026-09-13T00:00:00-07:00 | repair_ccap_sources_score10.py | NORMALIZED_CCAP_SOURCE_SCORE10 | Copied the CCAP source identity from references and the original ccap-import event into the structured sources slot recognized by review scoring. |