bg

CultureMech:000055 algae COMPLEX LIQUID
Original name: BG

Overview

Applications
  • Algae cultivation
  • Phytoplankton culture
  • Microalgae research
Notes
Full recipe available at https://www.ccap.ac.uk/wp-content/uploads/MR_BG11.pdf

Composition

flowchart LR
    CultureMech_000055["bg"]
    ing0_H3BO3["H3BO3"]
    CultureMech_000055 --> ing0_H3BO3
    CHEBI_33118["CHEBI:33118"]
    ing0_H3BO3 -.-> CHEBI_33118
    ing1_MnCl2_x_4_H2O["MnCl2 x 4 H2O"]
    CultureMech_000055 --> ing1_MnCl2_x_4_H2O
    CHEBI_86368["CHEBI:86368"]
    ing1_MnCl2_x_4_H2O -.-> CHEBI_86368
    ing2_ZnSO4_x_7_H2O["ZnSO4 x 7 H2O"]
    CultureMech_000055 --> ing2_ZnSO4_x_7_H2O
    CHEBI_32312["CHEBI:32312"]
    ing2_ZnSO4_x_7_H2O -.-> CHEBI_32312
    ing3_Na2MoO4_x_2_H2O["Na2MoO4 x 2 H2O"]
    CultureMech_000055 --> ing3_Na2MoO4_x_2_H2O
    CHEBI_75213["CHEBI:75213"]
    ing3_Na2MoO4_x_2_H2O -.-> CHEBI_75213
    ing4_CuSO4_x_5_H2O["CuSO4 x 5 H2O"]
    CultureMech_000055 --> ing4_CuSO4_x_5_H2O
    CHEBI_31440["CHEBI:31440"]
    ing4_CuSO4_x_5_H2O -.-> CHEBI_31440
    ing5_Co_NO__2_6H_O["Co(NO )2.6H O"]
    CultureMech_000055 --> ing5_Co_NO__2_6H_O

Ingredients (6)

# Ingredient Concentration Ontology Notes
1 H3BO3
H3BO3 61.833 g/mol
2.86 G_PER_L CHEBI:33118
boric acid
 From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification Name repaired (#276): the source string `H BO` had lost its subscript digits; restored to `H3BO3` — grounded to boric acid (CHEBI:33118).
2 MnCl2 x 4 H2O
Cl2Mn.4H2O 197.904 g/mol
1.81 G_PER_L CHEBI:86368
manganese(II) chloride tetrahydrate
 From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification
3 ZnSO4 x 7 H2O
7H2O.O4S.Zn 287.558 g/mol
0.22 G_PER_L CHEBI:32312
zinc sulfate heptahydrate
 From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification
4 Na2MoO4 x 2 H2O
2H2O.MoO4.2Na 241.946 g/mol
0.39 G_PER_L CHEBI:75213
sodium molybdate dihydrate
 From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification
5 CuSO4 x 5 H2O
Cu.5H2O.O4S 249.684 g/mol
0.08 G_PER_L CHEBI:31440
copper(II) sulfate pentahydrate
 From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification
6 Co(NO )2.6H O 0.05 G_PER_L Ontology mapping not yet available; From CCAP Medium MR_BG11.pdf; Curated from CCAP Medium MR_BG11.pdf specification

Preparation

  1. Bring to 1 L with deionised water.
  2. Adjust pH to 7.1 with 1 M NaOH or HCl before autoclaving.
  3. For an agar formulation, add 15.0 g/L Bacteriological Agar.
  4. Autoclave at 15 psi for 15 minutes.

Target organisms

No target organisms are recorded.

Provenance

TimestampCuratorActionNotes
2026-01-28T00:00:00+00:00 ccap-import Imported from CCAP Culture Collection Source ID: BG11, PDF URL: https://www.ccap.ac.uk/wp-content/uploads/MR_BG11.pdf
2026-02-03T00:00:00+00:00 schema-defaulter-v1.0 Applied schema defaults and normalizations Added placeholder ingredients for missing composition
2026-02-03T11:26:43.474504 quality-tagger-v1.0 Added data quality flag Marked as incomplete_composition due to placeholder ingredients
2026-03-13T06:18:53.039123Z culturemech-id-assigner-v1.0 Assigned CultureMech ID Assigned stable identifier: CultureMech:000055
2026-03-17T19:45:03.994253+00:00 normalize_media_names_to_snake_case.py NAME_NORMALIZED Normalized name from "BG" to "bg" for consistent matching
2026-04-04T12:54:55.079242 batch_process_collection_media EXPANDED_INGREDIENTS
2026-05-16T08:57:02.163840+00:00 migrate_data_quality_flags.py MIGRATED_DATA_QUALITY_FLAGS dict(4 keys) -> list(3 entries)
2026-05-16T09:02:56.308738+00:00 migrate_legacy_fields.py MIGRATED_LEGACY_FIELDS curation_history.date->timestamp=2; references.reference_id->reference=2; category->lowercase=1
2026-08-17T17:31:48.247793+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): H BO -> H3BO3. 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_BG11.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.