Journal of Taiwan Agricultural Research

Author:Jin-Tong Chen, Shiuan-Yuh Chien, Jin-Torng Peng and Meei-Hsing Chen*

Abstract:

    Spent substrate of king oyster mushroom after harvesting first flush, mixed with new sawdust in various ratios by fresh weight, were used as the substrate for cultivating Pleurotus eyngii. Each substrate was filled into 1,100 mL polypropane plastic bottles with an automatically filling machine (including filling, pressing, holing and capping), then sterilized at 121℃ for one hour. After cooling down, they were inoculated with P. eryngii commercial strains B011 and B012, respectively. The inoculated substrates were incubated at 18.5-21.5℃ for 35 days, then moved to a cropping room. Productivities and fruiting characteristics of the two mushroom strains cultivated in various substrates were compared. The spent substrate mixed with new sawdust or used alone as the raw material for preparation of the substrate for cultivating P. eryngii showed a high potential for producing the same mushroom yield as the substrate consisting of all new sawdust. These indicated that the spent substrate of king oyster mushroom had a high potentiality to be reused for commercial cultivation of the mushroom.

Key words:Pleurotus eryngii, Recycling application of spent mushroom substrate, Productivity

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