Sterilization method for producing culture material for hypsizigus marmoreus in factory

Abstract

The invention discloses a sterilization method for producing a culture material for hypsizigus marmoreus in a factory. The culture material is sterilized by a vacuum high-pressure steam sterilizer with the sterilization volume of 27-31m<3>. The sterilization method is characterized by comprising the following steps of: performing first vacuumization by using the sterilizer before high pressure steam is input; introducing steam to raise the temperature in the sterilizer; performing second vacuumization; introducing steam to raise the temperature; and performing the third vaccumization and introducing steam to raise the temperature, wherein the inner space of the sterilizer has the negative pressure of 0.055Mpa in vaccumization each time, the cold air in the sterilizer and the culture materials is completely removed, and the high temperature and high pressure steam quickly and comprehensively permeates the culture material for quick and thorough sterilization. Through vacuumization process link, the high temperature and high pressure steam comprehensively permeates the culture material to achieve the quick and thorough sterilization effect, and the energy is saved simultaneously.

Description

technical field [0001] The invention relates to a method for sterilizing the compost used for cultivating edible fungi, and in particular discloses a method for sterilizing the compost for industrial production of shimeji mushrooms. Background technique [0002] China is a big country in the production and consumption of edible fungus, with a long history of cultivation, but its production is mainly in the traditional workshop mode, and the sterilization of the culture material stays in the simple sterilization facilities and atmospheric pressure steam sterilization technology, and the time is as long as 16 ~22 hours or even longer, but the sterilization is not complete and the pollution rate is high; the general high-pressure sterilization process also takes 4.5 to 5.5 hours, and because the cold air in the sterilization pot cannot be emptied during the sterilization, there is local sterilization The dead angle causes incomplete sterilization, and its temperature is 123-127...

AI Technical Summary

Problems solved by technology

[0002] China is a big country in the production and consumption of edible fungus, with a long history of cultivation, but its production is mainly in the traditional workshop mode, and the sterilization of the culture material stays in the simple sterilization facilities and atmospheric pressure steam sterilization technology, and the time is as long as 16 ~22 hours or even longer, but the sterilization is not complete and the pollution rate is high; the general high-pressure sterilization process also takes 4.5 to 5.5 hours, and because the cold air in the sterilization pot cannot be emptied during the sterilization, there is local sterilization Dead angle, resulting in incomplete sterilization, its temperature is 123 ~ 127 ℃, long-term high temperature and high pressure will cause too much nutritional damage to the compost, seriously affecting the yield and quality of production