What harm does Aspergillus cause in shiitake mushroom cultivation?
What harm does Aspergillus cause to shiitake mushrooms? Please give an introduction. Aspergillus is widely distributed in soil, air, various grains and their by-products such as wheat bran, rice bran and other organic matter. The suitable temperature for Aspergillus growth is 20 to 35°C, the relative humidity is 65% to 85%, and the pH is neutral or slightly alkaline. Aspergillus is commonly found in shiitake mushroom spawn...
What harm does Aspergillus cause to shiitake mushrooms? Please give an introduction.
Aspergillus is widely distributed in soil, air, various grains and their by-products such as wheat bran, rice bran and other organic matter. The suitable temperature for Aspergillus growth is 20 to 35°C, the relative humidity is 65% to 85%, and the pH is neutral or slightly alkaline. Aspergillus is commonly found during the shiitake mushroom spawn production stage and the log cultivation stage. After infection, in addition to competing with shiitake mycelium for nutrients in the substrate (mainly starches) and water, it also secretes organic acids and toxins that inhibit the growth and development of shiitake mycelium; repeated Aspergillus infection, with excessively high concentrations of conidia in the air, can cause "aspergillosis". "Aflatoxin" is a carcinogenic substance. Controlling the occurrence of Aspergillus flavus and reducing its contamination of shiitake mycelium and products is of great significance for producing green shiitake mushroom products.
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