Fruit body formation of lentinula edodes by pulse electric field stimulations

Pulsed high voltages were applied to logs for mushroom culturing to clarify an effect of the pulse voltage stimulation on fruit body formation of basidiomycetes i.e. mushroom. Inductive energy storage system was combined with Marx type pulsed power generator for construction of a pulsed power generator with compact size and high output voltage. The output voltage of 50 ns pulse width was applied to natural logs for culturing Lentinula edodes, Pholiota nameko and Naematoloma sublateritium as an electrical stimulation. The experimental results clearly showed that the fruit body formation for some kinds of mushroom was improved to be more than 1.5 times total weight of the formed fruit body by applying pulse voltage as electrical stimulation. The total weight of the cropped mushroom increased with increasing stimulation number. The increase of the total weight of cropped mushroom was mainly caused by the increase of the size for each fruit body.