A Study on the Sound Absorption Properties of Mycelium-Based Composites Cultivated on Waste Paper-Based Substrates
Walter, N.; Gürsoy, B.
What is it about?
Pleurotus ostreatus was grown on waste paper, cardboard and newsprint (shredded or finely ground); sound absorption was measured in an impedance tube (500 Hz–6.4 kHz and 50 Hz–1.6 kHz). Cardboard-based samples proved sound-absorbing (mean α 0.36–0.42); finely ground newsprint and shredded paper were not dimensionally stable. A prototype acoustic panel was also produced.
Experiments from this publication (2)
| Experiment | Fungus | Substrate mix | Density [kg/m³] | Measurements |
|---|---|---|---|---|
| Cardboard, finely ground · P. ostreatus (FCL/FCH) | Pleurotus ostreatus | 84.75 % Waste cardboard, finely ground 15.25 % Wheat bran |
7 | |
| Cardboard, shredded · P. ostreatus (SCL/SCH) | Pleurotus ostreatus | 84.75 % Waste cardboard, shredded 15.25 % Wheat bran |
7 |
Notes on data extraction
Taken from Table 4 (mean ± SD; combination of Ø 100 mm and Ø 29 mm specimens) and Table 5 (mean). Paper, newsprint and Ecovative variants are shown only graphically (preliminary test) and were not taken. Observations: strongest warping for finely ground paper, least for the Ecovative mix; finely ground newsprint crumbled after drying.