Growth Characteristics of the Thermophilic Fungus Scytalidium thermophilum in Relation to Production of Mushroom Compost

AUTOR(ES)

Wiegant, W. M.

RESUMO

Scytalidium thermophilum is an important thermophilic fungus in the production of mushroom compost. I investigated the characteristics of this organism and present a simple model with which fungal growth in compost can be described. The model is used to predict better circumstances for rapid indoor production of mushroom compost. I conclude that inoculation of the starting material with prepared compost either before or after the pasteurization phase has only a minor effect on the shortening of the composting process. This is because the initial growth rate of the fungus is much higher than its growth rate later. A lower temperature (53.5°C instead of the usual 56 to 58°C) during the pasteurization phase may be most profitable for rapid compost production; such a temperature may reduce the time that is needed for the last phase of the production process by at least 1 day.

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