Overview
- Applications
-
- Algae cultivation
- Phytoplankton culture
- Microalgae research
- Notes
- Full recipe available at https://www.ccap.ac.uk/wp-content/uploads/MR_BB_MErds.pdf
Ingredients (0)
No ingredients recorded.
Preparation
- Mix the two constituent media, then autoclave at 15 psi for 15 minutes.
Solutions
BB (Bold's Basal Medium)
Dose: variable VARIABLE
Use 800 mL/L in the 8:2 variant or 500 mL/L in the 1:1 variant. Source: CCAP Medium MR_BB_MErds.pdf.
MErds (Modified Foyns Erdschreiber Medium)
Dose: variable VARIABLE
Use 200 mL/L in the 8:2 variant or 500 mL/L in the 1:1 variant. Source: CCAP Medium MR_BB_MErds.pdf.
Target organisms
No target organisms are recorded.
Recipe variants
- Name
- bb_merds_8_2
- Relationship
- CONCENTRATION_VARIANT
- Modifications
- Mix 800 mL BB with 200 mL MErds per litre.
- Name
- bb_merds_1_1
- Relationship
- CONCENTRATION_VARIANT
- Modifications
- Mix 500 mL BB with 500 mL MErds per litre.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-01-28T00:00:00+00:00 | ccap-import | Imported from CCAP Culture Collection | Source ID: BB_MErds, PDF URL: https://www.ccap.ac.uk/wp-content/uploads/MR_BB_MErds.pdf |
| 2026-02-03T00:00:00+00:00 | schema-defaulter-v1.0 | Applied schema defaults and normalizations | Added placeholder ingredients for missing composition |
| 2026-02-03T11:26:43.472711 | quality-tagger-v1.0 | Added data quality flag | Marked as incomplete_composition due to placeholder ingredients |
| 2026-03-13T06:18:53.036466Z | culturemech-id-assigner-v1.0 | Assigned CultureMech ID | Assigned stable identifier: CultureMech:000054 |
| 2026-03-17T19:45:03.991761+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "BB:MErds" to "bb_merds" for consistent matching |
| 2026-04-04T20:18:55.100375 | batch_process_collection_media | EXPANDED_INGREDIENTS | |
| 2026-05-16T08:57:02.154284+00:00 | migrate_data_quality_flags.py | MIGRATED_DATA_QUALITY_FLAGS | dict(4 keys) -> list(3 entries) |
| 2026-05-16T09:02:56.297608+00:00 | migrate_legacy_fields.py | MIGRATED_LEGACY_FIELDS | curation_history.date->timestamp=2; references.reference_id->reference=2; category->lowercase=1 |
| 2026-08-17T17:31:48.160483+00:00 | repair_subscript_stripped_names.py | REPAIRED_SUBSCRIPT_STRIPPED_NAME | Restored digits lost from formula ingredient name(s) by an upstream encoding step (#276): Co(NO ) .6H O -> Co(NO3)2.6H2O. The corrupted original is preserved in each ingredient's notes. |
| 2026-08-25T00:00:00-07:00 | repair_ccap_instruction_rows.py | REPAIRED_CCAP_INSTRUCTION_ROWS | Repaired preparation text and nested-recipe flattening against CCAP MR_BB_MErds.pdf. Moved process statements to preparation_steps and restored source-asserted components or constituent-medium references where applicable. |
| 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. |