Character of Charcoal Made from Used Paper and Growth of Basidiomycetes Cultivated on the Charcoal

概要

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The authors have investigated characteristics of charcoal made from used paper and mycelial growth in this charcoal, in order to utilize used paper as medium material of the basidiomycetes. The pH of the charcoal increased with carbonization temperature, which was lower than that of charcoal made from wood at the same temperature. Charcoal with the pH favorable for the basidiomycetes growth was obtained easily. The mycelial extension of Pleuroutus ostreatus in charcoal was the most remarkable at pH 6.0 which was suitable for growth of mycelium. When the bulk density of charcoal was 0.15g/cm3, the radius of 80% of the pores were in the range from 1μm to 100μm, the size of which was suitable for the mycelial growth. High moisture rate was necessary for mycelial extension of Pleuroutus ostreatus in charcoal than in sawdust. It has been proved that Pleuroutus ostreatus grows up well in charcoal made from used paper.
炭素材料学会の論文