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Normal-pressure steam-sterilization method capable of being used in substitute cultivation of edible fungi in high-altitude areas

A technology of atmospheric pressure steam and sterilization method, which is applied in cultivation, plant cultivation, mushroom cultivation, etc. It can solve the problems that the temperature cannot reach 100°C, it cannot be used, and the equipment is expensive, and achieves less decomposition and denaturation, low sterilization temperature, The effect of reducing production costs

Inactive Publication Date: 2018-11-16
刘勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-pressure sterilization equipment is expensive, so normal pressure sterilization is generally used in the large-scale production of edible fungi
In high-altitude areas, due to the low atmospheric pressure, the boiling point of water is lower than 100°C. Therefore, when using atmospheric pressure steam for sterilization, the temperature of the steam and the cultivation material in the bacteria bag cannot reach 100°C. Used in the cultivation of edible fungi in altitude areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Cultivation material formula: miscellaneous sawdust 2340kg, wheat bran 600kg, gypsum 60kg.

[0012] Mixing and bagging: first mix 900g of sterilization aids with wheat bran and gypsum, then add miscellaneous sawdust and dry mix evenly, and finally add water and mix repeatedly to make the moisture content of the cultivation material reach 60%, and then bag it manually.

[0013] Sterilization: Use a box-type atmospheric pressure steam sterilizer to sterilize. When the temperature of the cultivation material in the bacteria bag at the lowest temperature in the sterilizer reaches 85°C, keep the firepower to keep the temperature of the bag material above 85°C for 8 hours. Then turn off the heat and simmer the stove, cover the top and surroundings of the sterilizing pot with a quilt to keep warm, after 6 hours, the temperature of the material drops to 52°C, remove the heat preservation quilt, and wait for the bacteria bag to cool naturally below 40°C before turning on the stov...

Embodiment 2

[0018] Cultivation material formula: wood chips 79%, wheat bran 15.56%, corn flour 1%, rice bran 2%, sucrose 0.8%, gypsum powder 1.6%, potassium dihydrogen phosphate 0.02%, magnesium sulfate 0.02%.

[0019] Mixing material bagging: Accurately weigh various raw materials according to the above formula ratio according to the total weight of the cultivation material 5000 kg. First weigh 1.5 kg of pre-prepared sterilization aids, mix them with wheat bran, corn flour, rice bran, sucrose, gypsum powder, potassium dihydrogen phosphate, magnesium sulfate, etc. Mix evenly, then add water and stir to make the water content of the cultivation material reach 55%~60%, and pack it with a bagging machine.

[0020] Sterilization:

[0021] Adopt the yurt-type atmospheric pressure sterilization method: (1) Spread grass on the ground, put the ropes in a vertical and horizontal cross, and then spread a double-layer plastic film with insulation cotton in the middle as the base cloth. (2) Place t...

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Abstract

The invention discloses a normal-pressure steam-sterilization method capable of being used in the substitute cultivation of edible fungi in high-altitude areas. According to the method, a sterilization auxiliary agent is added during material mixing for substitute cultivation of the edible fungi, and when sterilization is carried out, only the material temperature of fungus bags is raised to 85 DEG C or above by heating, the temperature is kept for 8 hours, then fire is turned off, an oven is closed, and the sterilization is finished after the fungus bags are naturally cooled to 50 DEG C or below. Through the method, the investment of production equipment of edible fungi in high-altitude areas can be saved, the production cost can be reduced, the sterilization efficiency is high, and the yield of the cultivated edible fungi is high.

Description

technical field [0001] The invention belongs to the technical field of edible fungi cultivation, and in particular relates to an atmospheric pressure steam sterilization method for edible fungus cultivation which can be used in high-altitude areas. Background technique [0002] Edible fungus is a traditional agricultural industry in my country, and it is also the sixth largest agricultural product after grain, cotton, oil, fruit, and vegetables. It is not only a nutritious food, but also a health food. At present, the cultivation of edible fungi has become a characteristic agricultural industry in my country, and the scale of cultivation continues to increase. Substitute cultivation has developed rapidly in recent years due to the characteristics of using agricultural and forestry waste as the main raw material, short cultivation period, high conversion rate and suitable for large-scale production. Substitute material cultivation generally adopts clinker cultivation, that i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G18/30A01G18/20
CPCA01G18/30A01G18/20
Inventor 刘勇李文辉
Owner 刘勇
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