Overview
- pH
- 8.0
- Notes
- Vessel type: test tubes with loose caps PCS basal medium (peptone-cellulose-salt) supplemented with filter paper as cellulose substrate and calcium carbonate buffer. Medium prepared with loose caps to allow oxygen entry while maintaining high humidity. Static (non-shaking) incubation. The aerobic members (Pseudoxanthomonas, Brevibacillus, Bordetella) consume oxygen to create localized anaerobic microenvironments for the cellulolytic Clostridium species. Inoculum volume: 40 microliters per 4 mL medium. Subculture protocol: 40-700 microliters transferred to fresh medium after 6 days.
Composition
flowchart LR
CultureMech_015439["pcs_fp_medium_for_thermophilic_cellulose_degradation"]
ing0_Filter_paper__cellulose_substrate_["Filter paper (cellulose substrate)"]
CultureMech_015439 --> ing0_Filter_paper__cellulose_substrate_
CHEBI_18246["CHEBI:18246"]
ing0_Filter_paper__cellulose_substrate_ -.-> CHEBI_18246
ing1_Calcium_carbonate["Calcium carbonate"]
CultureMech_015439 --> ing1_Calcium_carbonate
CHEBI_3311["CHEBI:3311"]
ing1_Calcium_carbonate -.-> CHEBI_3311
ing2_Yeast_extract["Yeast extract"]
CultureMech_015439 --> ing2_Yeast_extract
ing3_Peptone["Peptone"]
CultureMech_015439 --> ing3_Peptone
ing4_Sodium_chloride["Sodium chloride"]
CultureMech_015439 --> ing4_Sodium_chloride
CHEBI_26710["CHEBI:26710"]
ing4_Sodium_chloride -.-> CHEBI_26710
Ingredients (5)
| # | Ingredient | Concentration | Ontology | Notes |
|---|---|---|---|---|
| 1 |
Filter paper (cellulose substrate)
(C6H10O5)n.H2O 180.156 g/mol
|
10.0 G_PER_L |
CHEBI:18246
(1->4)-beta-D-glucan
|
|
| 2 |
Calcium carbonate
CO3.Ca 100.086 g/mol
|
2.0 G_PER_L |
CHEBI:3311
calcium carbonate
|
|
| 3 | Yeast extract | 1.0 G_PER_L | ||
| 4 | Peptone | 5.0 G_PER_L | ||
| 5 |
Sodium chloride
Cl.Na 58.443 g/mol
|
5.0 G_PER_L |
CHEBI:26710
sodium chloride
|
Target organisms
No target organisms are recorded.
Provenance
| Timestamp | Curator | Action | Notes |
|---|---|---|---|
| 2026-03-15T00:15:00.492730Z | communitymech-importer-v1.0 | Imported from CommunityMech | Created from CommunityMech:000061 growth_media record |
| 2026-03-17T06:30:45.000000Z | mediaingredientmech-enrichment-v1.0 | Added MediaIngredientMech links | Linked ingredients to MediaIngredientMech identifiers |
| 2026-03-17T19:46:07.629908+00:00 | normalize_media_names_to_snake_case.py | NAME_NORMALIZED | Normalized name from "PCS-FP medium for thermophilic cellulose degradation" to "pcs_fp_medium_for_thermophilic_cellulose_degradation" for consistent matching |
| 2026-05-24T04:38:33.299025+00:00 | backfill_source_environment.py | BACKFILLED_SOURCE_ENVIRONMENT | added=1 env(s) from CommunityMech |
| 2026-06-05T07:40:29.566713+00:00 | mim-legacy-to-chebi-migration-v1.0 | Refreshed legacy MediaIngredientMech links to CHEBI keying | Replaced 3 legacy mediaingredientmech_term link(s) with mediaingredientmech_chebi_term (id-safe: ingredient's own CHEBI + label). MIM deprecated the MediaIngredientMech:NNNNNN id scheme. |
| 2026-09-13T00:00:00-07:00 | repair_communitymech_sources_score10_batch10.py | ADDED_COMMUNITYMECH_STRUCTURED_SOURCES_BATCH10 | Promoted CommunityMech upstream IDs into sources[] for source-provenance scoring. |