Bleached cellulose pulp · P. ostreatus (CS1-PO)
✓ Reviewed content
Pleurotus ostreatus · TU Graz, Institute of Architecture and Media (AT)
Recipe
How this sample was made, step by step · total growth 14 days-
1
Substrate
- 100 wt%
- Bleached cellulose pulp (pieces Ø 2–6 mm)
- Pre-treatment
- soaked in distilled water for 24 h
-
2
Sterilisation
- Method
- Autoclaving
- Details
- pressure cooker 121 °C, 45 min in PP microfilter bag (SacO2 PP50/SEU4/V40-51)
-
3
Inoculation
- Fungus
- Pleurotus ostreatus
- Inoculum
- Grain spawn
- Rate
- 10 wt%
- Water content
- 64.17 %
-
4
Growth in mould
7 days- Mould
- perforated transparent film, 0.5 mm; filled by hand with manual pressing
- Temperature
- 23 °C
- Light
- dark
-
5
Post-growth
7 days- Where
- demoulded
-
6
Inactivation
- Method
- Oven drying
- Temperature
- 40 °C
-
7
Specimen & testing
- Geometry
- cube 10 × 10 × 10 cm (density, compression, water absorption); prism 4 × 4 × 16 cm (bending)
- Dry density
- 340 kg/m³
- Shrinkage
- 40 %
- Measurements
- 3
Steps marked “not reported” were not stated in the source. Suggest missing details
Bleached cellulose pulp with oyster mushroom; very good flexural strength but strong shrinkage.
Measurements
Mechanical
| Property | Value | n | Test standard | Conditions | |
|---|---|---|---|---|---|
| Compressive strength | 0.85 MPa | 1 | EN 1015-11 | loading rate 10 N/mm²/s according to the paper; failure at force drop |
edit |
| Flexural strength | 0.35145 MPa | 2 | EN 1015-11 (3-point) | single values 0.347 / 0.356 MPa (CS1-PO-06/-07) |
edit |
Physical properties
Production
Substrate mix
Fungus & inoculation
- Fungus
- Pleurotus ostreatus
- Inoculum type
- Grain spawn
- Inoculation rate [wt%]
- 10
- Water content at inoculation [%]
- 64.17
- Sterilisation
- Autoclaving
- Sterilisation – details
- pressure cooker 121 °C, 45 min in PP microfilter bag (SacO2 PP50/SEU4/V40-51)
Growth
- Growth in mould [days]
- 7
- Post-growth after demoulding [days]
- 7
- Temperature [°C]
- 23
- Light
- dark
- Mould / mould material
- perforated transparent film, 0.5 mm; filled by hand with manual pressing
Post-processing
- Inactivation
- Oven drying
- Inactivation – temperature [°C]
- 40
Specimen
- Specimen geometry
- cube 10 × 10 × 10 cm (density, compression, water absorption); prism 4 × 4 × 16 cm (bending)
- Dry density [kg/m³]
- 340
- Shrinkage [%]
- 40
Notes
Substrate soaked in distilled water for 24 h. Spawn (grain spawn, local supplier) 10 % of the mass of the sterilised (wet) substrate. Stored protected from light at 22–24 °C (entered as 23 °C). Dried in a drying cabinet at 40 °C until completely dry. Single specimens (n = 1) unless stated otherwise. Shrinkage “up to 40 %” (edge length 10 → 8.4 cm).
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