Edible mushroom culture medium as well as preparation method and application thereof

Abstract

The invention provides an edible mushroom culture medium and a preparation method and application thereof, and relates to the technical field of culture medium preparation. The edible mushroom culture medium comprises the following raw materials in percentage by mass: 15-20% of sunflower straw, 15-20% of corn straw, 15-20% of wheat straw, 1-5% of medical stone, 5-15% of soybean meal, 10-20% of cottonseed hull, 1-5% of glucose, 0.1-1% of organic acid and 10-20% of water. The edible mushroom culture medium is prepared by processing waste crop straws, so that pollution caused by direct burning of the straws is reduced, and the utilization value of the straws is improved.

Description

Technical Field

[0001] The present application relates to the technical field of culture medium preparation, and in particular to an edible fungus culture medium and a preparation method and use thereof. Background Art

[0002] Straw is an inedible by-product of agricultural production. Common straws in agricultural production include wheat straw, rice straw, corn straw, potato straw, rapeseed straw, etc. my country is rich in agricultural straw resources. With the growth of global population and the increase in food demand, the production and consumption of edible fungi, as a high-nutrition, high-protein food, are growing rapidly. Edible fungi are not only delicious, but also have multiple health benefits, including enhancing immunity and improving cardiovascular health.

[0003] However, traditional edible fungus production relies on wood and crop waste as culture media. The use of these materials has certain limitations and environmental impacts. At the same time, the large amount of straw generated in agricultural activities can be converted into valuable resources if used reasonably.

[0004] Therefore, how to develop and utilize straw as a culture medium is an issue that needs to be urgently addressed. Summary of the invention

[0005] The purpose of the present application is to provide an edible fungus culture medium and a preparation method and use thereof to solve the above-mentioned problems.

[0006] To achieve the above objectives, the first aspect of the present application provides an edible fungus culture medium, wherein the raw materials thereof, calculated by total mass as 100%, include:

[0007] Sunflower straw 15%-20%, corn straw 15%-20%, wheat straw 15%-20%, medical stone 1%-5%, soybean meal 5%-15%, cottonseed hull 10%-20%, glucose 1%-5%, organic acid 0.1%-1%, water 10%-20%.

[0008] Optionally, the organic acid comprises citric acid.

[0009] The second aspect of the present application provides a method for preparing the edible fungus culture medium, comprising:

[0010] The sunflower straw, the corn straw, the wheat straw, the medical stone, the soybean meal, the cottonseed hull, the glucose and the water are mixed and sterilized to obtain a sterilized material;

[0011] The sterilized material and the organic acid are mixed to obtain an edible fungus culture medium.

[0012] Optionally, the sunflower straw, the corn straw, and the wheat straw are pre-wetted before use.

[0013] Optionally, the pre-wetting process includes:

[0014] Soaking the sunflower straw, the corn straw, and the wheat straw to obtain soaked straw;

[0015] crushing the soaked straw to obtain crushed straw;

[0016] The crushed straw is subjected to high pressure treatment.

[0017] Optionally, the method for preparing the edible fungus culture medium satisfies at least one of the following conditions:

[0018] A. The soaking time is 6h-8h;

[0019] B. The length of the crushed straw is 1cm-3cm;

[0020] C. The pressure of the high pressure treatment is 0.3MPa-0.5MPa.

[0021] Optionally, the sterilization temperature is 120°C-130°C, and the time is 2h-3h.

[0022] Optionally, the pH value of the edible fungus culture medium is 5.5-6.5.

[0023] A third aspect of the present application provides a use of an edible fungus culture medium for cultivating edible fungi to obtain edible fungi.

[0024] Optionally, the edible fungi include Pleurotus ostreatus and / or Agaricus bisporus.

[0025] Compared with the prior art, the beneficial effects of this application include:

[0026] The edible fungus culture medium provided by the present application is processed from discarded crop straw, which reduces the pollution caused by direct burning of straw and improves the utilization value of straw; the main chemical component of medical stone is inorganic aluminosilicate, which can provide trace elements beneficial to edible fungi. At the same time, medical stone can improve the physical structure of soil or culture medium, increase air permeability and water retention, and increase the density of culture medium; soybean meal is the remaining part after oil is extracted from soybean, which is rich in protein and can provide essential nutrients for edible fungi and promote their growth and metabolism; sunflower straw, corn straw, and wheat straw differ in the content of cellulose, hemicellulose, and lignin. Their combined use can improve the nutritional diversity of the culture medium and promote the growth of mycelium; glucose, as a simple sugar, can be quickly absorbed by edible fungi and provide a quick energy source, while organic acids can adjust the pH value of the culture medium, promote the dissolution and absorption of nutrients, and help the growth of mycelium; the combination of glucose and soybean meal provides edible fungi with a quick energy and nitrogen source and promotes their metabolism.

[0027] The edible fungus culture medium and preparation method thereof provided in the present application are simple to operate, and sterilization can effectively kill microorganisms in the culture medium to ensure the sterility of the culture medium.

[0028] The use of the edible fungus culture medium provided in the present application can cultivate bacterial strains to obtain edible fungi, and the cultivation effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope of the present application.

[0030] Figure 1 This is a physical picture of the mycelium of edible fungi prepared in Example 1;

[0031] Figure 2 This is a physical picture of the edible fungi prepared in Example 1. DETAILED DESCRIPTION

[0032] As used herein:

[0033] "Prepared from" is synonymous with "comprising." As used herein, the terms "comprising," "including," "having," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises the listed elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

[0034] The conjunction "consisting of excludes any unspecified element, step, or component. If used in a claim, this phrase renders the claim closed-ended so that it does not include materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of" appears in a clause of the body of a claim rather than immediately following the subject matter, it limits only the elements described in that clause; other elements are not excluded from the claim as a whole.

[0035] When an amount, concentration, or other value or parameter is expressed as a range, a preferred range, or a range defined by a series of upper preferred values ​​and lower preferred values, this should be understood as specifically disclosing all ranges formed by any pairing of any range upper limit or preferred value with any range lower limit or preferred value, regardless of whether the range is disclosed separately. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted as including ranges "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5", etc. When a numerical range is described in this article, unless otherwise stated, the range is intended to include its end values ​​and all integers and fractions within the range.

[0036] In these examples, parts and percentages are by mass unless otherwise indicated.

[0037] "Parts by mass" refers to the basic unit of measurement for expressing the mass ratio of multiple components. 1 part can represent any unit mass, such as 1g or 2.689g. If we say that the mass of component A is a parts and the mass of component B is b parts, it means the ratio of the mass of component A to the mass of component B is a:b. Alternatively, it means that the mass of component A is aK and the mass of component B is bK (K is an arbitrary number, indicating a multiple factor). It should not be misunderstood that, unlike the mass parts, the sum of the mass of all components is not limited to 100 parts.

[0038] “And / or” is used to indicate that one or both of the stated situations may occur, for example, A and / or B includes (A and B) and (A or B).

[0039] The first aspect of the present application provides an edible fungus culture medium, wherein the raw materials thereof, calculated by total mass as 100%, include:

[0040] Sunflower straw 15%-20%, corn straw 15%-20%, wheat straw 15%-20%, medical stone 1%-5%, soybean meal 5%-15%, cottonseed hull 10%-20%, glucose 1%-5%, organic acid 0.1%-1%, water 10%-20%.

[0041] Optionally, the raw materials of the edible fungus culture medium are calculated by mass as 100%, and the sunflower straw can be 15%, 16%, 17%, 18%, 19%, 20% or any value between 15% and 20%, the corn straw can be 15%, 16%, 17%, 18%, 19%, 20% or any value between 15% and 20%, the wheat straw can be 15%, 16%, 17%, 18%, 19%, 20% or any value between 15% and 20%, the medical stone can be 1%, 2%, 3%, 4%, 5% or any value between 1% and 5%, and the soybean meal can be 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15% or any value between 5% and 20%. 1%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20% or any value between 10% and 20%, glucose can be 1%, 2%, 3%, 4%, 5% or any value between 1% and 5%, organic acid can be 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0% or any value between 0.1% and 1%, water can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20% or any value between 10% and 20%.

[0042] It should be noted that sunflower straw has a high crude protein content and can be used as a nitrogen source to promote the metabolic activities of microorganisms. Sunflower straw also contains a variety of trace elements, such as potassium, calcium, magnesium, etc., which are essential for the growth of edible fungi. The mixed use of sunflower straw, corn straw, and wheat straw can balance the water retention and air permeability of the culture medium. The three types of straw have different physical structures. Each type of straw has its own unique physical structure, such as porosity, fiber length, and thickness. When mixed, these different structures can complement each other to form a more uniform pore distribution, thereby improving the overall air permeability and water retention of the culture medium. Wheat straw may be softer and more absorbent than corn straw. When mixed, it can balance the overall water retention and avoid too fast evaporation of water or over-saturation. By adjusting the proportion of different straws, the density of the culture medium can be adjusted so that it is neither too loose nor too dense, thereby balancing water retention and air permeability.

[0043] In addition, straw is one of the large amounts of waste generated in agricultural production. Converting it into edible fungus culture medium can help reduce the accumulation and burning of agricultural waste and reduce environmental pollution. The production and use of straw culture medium reduces the use of fertilizers and pesticides, which helps reduce the negative impact of agriculture on the environment and provides a suitable growth environment for microorganisms. It can also utilize the abundant local straw resources and reduce the production cost of the culture medium. The cultivation of edible fungi helps maintain and increase biodiversity, because edible fungi are an important component of many ecosystems and play an important role in nutrient circulation and energy flow.

[0044] It should also be noted that medical stone is a natural silicate mineral that is non-toxic and harmless to organisms and has certain biological activity. It includes SiO2, Al2O3, Fe2O3, FeO, MgO, CaO, K2O, Na2O, TiO2, P2O5, MnO and other compounds. It also contains some major elements required by plants, such as trace elements and rare earth elements such as K, Na, Ca, Mg, Cu, Mo, etc. Medical stone added to the culture medium can not only provide trace elements beneficial to the culture medium, but also increase the density of straw; and medical stone has chemical properties. It is relatively stable and not easy to react chemically with chemicals such as acids and alkalis; adding medical stone to the straw culture medium can replace ordinary superphosphate to provide trace elements to the culture medium. Medical stone has an adsorption effect and can adsorb harmful substances in the culture medium, such as heavy metal ions and harmful microorganisms, reducing the adverse effects on the growth of edible fungi; medical stone can also promote the activity of beneficial microorganisms in the culture medium, these microorganisms can decompose straw and release more nutrients for edible fungi to absorb and utilize; medical stone can enhance the resistance of edible fungi to adverse environmental conditions, such as drought, high temperature or pests and diseases, and improve stress resistance.

[0045] In some embodiments, the organic acid comprises citric acid.

[0046] It should be noted that citric acid has pH buffering capacity, which can effectively adjust and stabilize the pH of the culture medium. It can also reduce dependence on chemically synthesized pH regulators, thereby reducing possible chemical residues in the culture medium.

[0047] The second aspect of the present application provides a method for preparing the edible fungus culture medium, comprising:

[0048] The sunflower straw, the corn straw, the wheat straw, the medical stone, the soybean meal, the cottonseed hull, the glucose and the water are mixed and sterilized to obtain a sterilized material;

[0049] The sterilized material and the organic acid are mixed to obtain an edible fungus culture medium.

[0050] In some embodiments, the sunflower straw, the corn straw, and the wheat straw are pre-wetted before use.

[0051] In some embodiments, the pre-wetting process comprises:

[0052] Soaking the sunflower straw, the corn straw, and the wheat straw to obtain soaked straw;

[0053] crushing the soaked straw to obtain crushed straw;

[0054] The crushed straw is subjected to high pressure treatment.

[0055] It should be noted that pre-wetting treatment can increase the density of straw.

[0056] It should also be noted that soaking will allow the straw to fully absorb water, soften the cellulose and hemicellulose, and facilitate subsequent crushing and high-pressure treatment; high-pressure treatment helps to further destroy the cell structure of the straw, release more nutrients, improve its digestibility, and help eliminate pathogens and pests that may be present in the straw, reducing the risk of contamination in subsequent cultivation processes.

[0057] In some embodiments, the method for preparing the edible fungus culture medium satisfies at least one of the following conditions:

[0058] A. The soaking time is 6h-8h;

[0059] Optionally, the soaking time can be 6h, 7h, 8h or any value between 6h and 8h;

[0060] B. The length of the crushed straw is 1cm-3cm;

[0061] Optionally, the length of the shredded straw can be 1 cm, 2 cm, 3 cm, or any value between 1 cm and 3 cm;

[0062] C. The pressure of the high pressure treatment is 0.3MPa-0.5MPa.

[0063] Optionally, the pressure of the high pressure treatment may be 0.3 MPa, 0.4 MPa, 0.5 MPa or any value between 0.3 MPa and 0.5 MPa.

[0064] In some embodiments, the sterilization temperature is 120°C-130°C, and the time is 2h-3h.

[0065] Optionally, the sterilization temperature can be 120°C, 125°C, 130°C or any value between 120°C and 130°C, and the sterilization time can be 2h, 2.5h, 3h or any value between 2h and 3h.

[0066] It should be noted that appropriate sterilization time ensures thorough sterilization while avoiding the destruction of the nutrient components of the culture medium by sterilization for too long.

[0067] In some embodiments, the pH value of the edible fungus culture medium is 5.5-6.5.

[0068] Optionally, the pH value of the edible fungus culture medium can be 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5 or any value between 5.5 and 6.5.

[0069] It should be noted that the metabolic enzymes of edible fungi are most active in the pH range of 5.5-6.5, which helps to improve the conversion and utilization efficiency of nutrients and is beneficial to the expansion of mycelium and the formation of entities.

[0070] A third aspect of the present application provides a use of an edible fungus culture medium for cultivating edible fungi.

[0071] In some embodiments, the edible fungi include Pleurotus ostreatus and / or Agaricus bisporus.

[0072] It should be noted that when the edible fungi include oyster mushrooms and / or Agaricus bisporus, the edible fungi culture medium can provide the required amino acids, nitrogen compounds, calcium, phosphorus, potassium, magnesium and other substances.

[0073] The embodiments of the present application will be described in detail below in conjunction with specific examples, but it will be appreciated by those skilled in the art that the following examples are only used to illustrate the present application and should not be considered as limiting the scope of the present application. If specific conditions are not specified in the examples, they are carried out according to normal conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified in the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0074] Example 1

[0075] In a first aspect, the present embodiment provides an edible fungus culture medium, wherein the raw materials thereof, calculated by mass 100%, include:

[0076] Sunflower straw 20%, corn straw 15%, wheat straw 15%, medical stone 5%, soybean meal 5%, cottonseed hull 15%, glucose 4%, citric acid 1%, water 20%.

[0077] A second aspect of the present embodiment provides a method for preparing an edible fungus culture medium, comprising:

[0078] S1. Pretreatment: Mix the powder of sunflower straw, corn straw and wheat straw and soak them in water for 8 hours, then crush them to a length of about 2 cm, and put the crushed straw into a pressure cooker and press them into a plate shape at a pressure of 0.3 MPa;

[0079] S2: Mix the pretreated straw, medical stone, soybean meal, cottonseed hull, glucose and water, put them into a high pressure sterilizer and set the temperature to 121° C., and sterilize for 2 h to obtain the sterilized material;

[0080] S3: Mix the sterilized material with citric acid to prepare an edible fungus culture medium with a pH of 6.

[0081] A third aspect of the present embodiment provides a use of an edible fungus culture medium for culturing edible fungi, and the specific steps are as follows:

[0082] The oyster mushroom strains were inoculated into the above edible fungus culture medium, the initial pile temperature was 70° C., then the surface temperature of the raw material was maintained at 45° C., the humidity was maintained at 70%, and the edible fungus was obtained after culturing for 10 days.

[0083] The mycelium of the edible fungus Figure 1 shown.

[0084] The prepared edible fungi are Figure 2 shown.

[0085] Example 2

[0086] In a first aspect, the present embodiment provides an edible fungus culture medium, wherein the raw materials thereof, calculated by mass 100%, include:

[0087] Sunflower straw 20%, corn straw 15%, wheat straw 15%, medical stone 5%, soybean meal 15%, cottonseed hull 15%, glucose 4%, citric acid 1%, water 10%.

[0088] A second aspect of the present embodiment provides a method for preparing an edible fungus culture medium, comprising:

[0089] S1, pretreatment: soak sunflower straw, corn straw, wheat straw powder in water for 7 hours, then crush to a length of about 1 cm, put the crushed straw mixture into a pressure cooker and press into a plate shape at a pressure of 0.3 MPa;

[0090] S2: Mix the pretreated straw, medical stone, soybean meal, cottonseed hull, glucose and water, put them into a high pressure sterilizer and set the temperature to 121° C., and sterilize for 2 h to obtain the sterilized material;

[0091] S3: Mix the sterilized material with citric acid to prepare an edible fungus culture medium with a pH of 6.

[0092] A third aspect of the present embodiment provides a use of an edible fungus culture medium for culturing edible fungi, and the specific steps are as follows:

[0093] The oyster mushroom strains were inoculated into the above edible fungus culture medium, the initial pile temperature was 70° C., then the surface temperature of the raw material was maintained at 45° C., the humidity was maintained at 70%, and the edible fungus was obtained after culturing for 10 days.

[0094] Example 3

[0095] In a first aspect, the present embodiment provides an edible fungus culture medium, wherein the raw materials thereof, calculated by mass 100%, include:

[0096] Sunflower straw 15%, corn straw 20%, wheat straw 15%, medical stone 5%, soybean meal 5%, cottonseed hull 15%, glucose 4%, citric acid 1%, water 20%.

[0097] A second aspect of the present embodiment provides a method for preparing an edible fungus culture medium, comprising:

[0098] S1. Pretreatment: Soak sunflower straw, corn straw and wheat straw powder in water for 6 hours, then crush them to a length of about 1 cm, and put the crushed straw into a pressure cooker and press them into a plate shape at a pressure of 0.3 MPa;

[0099] S2: Mix the pretreated sunflower straw, corn straw, and wheat straw with medical stone, soybean meal, cottonseed hull, glucose, and water, put them into a high pressure sterilizer and set the temperature to 121° C., and sterilize for 2 hours to obtain the sterilized material;

[0100] S3: Mix the sterilized material with citric acid to prepare an edible fungus culture medium with a pH of 6.5.

[0101] A third aspect of the present embodiment provides a use of an edible fungus culture medium for culturing edible fungi, and the specific steps are as follows:

[0102] The oyster mushroom strains were inoculated into the above edible fungus culture medium, the initial pile temperature was 70° C., then the surface temperature of the raw material was maintained at 40° C., the humidity was maintained at 70%, and the edible fungus was obtained after culturing for 10 days.

[0103] Comparative Example 1

[0104] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that sunflower straw is not added in this comparative example, and other conditions are consistent with the example.

[0105] Comparative Example 2

[0106] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that corn stalks are not added in this comparative example, and other conditions are consistent with the example.

[0107] Comparative Example 3

[0108] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that wheat straw is not added in this comparative example, and other conditions are consistent with the example.

[0109] Comparative Example 4

[0110] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that medical stone is not added in this comparative example, and other conditions are consistent with the example.

[0111] Comparative Example 5

[0112] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that soybean meal is not added in this comparative example, and other conditions are consistent with the example.

[0113] Comparative Example 6

[0114] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that cottonseed hulls are not added in this comparative example, and other conditions are consistent with those in the example.

[0115] Comparative Example 7

[0116] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that glucose is not added in this comparative example, and other conditions are consistent with the example.

[0117] Comparative Example 8

[0118] This comparative example provides an edible fungus culture medium and a preparation method and use thereof, which is different from Example 1 in that no organic acid is added in this comparative example, and other conditions are consistent with the example.

[0119] The edible fungi prepared in the above embodiment and the comparative example are compared, and the comparison results are shown in Table 1.

[0120] Table 1 Comparison of edible fungi

[0121]

[0122]

[0123] As shown in Table 1, the raw materials included in the embodiment, such as sunflower straw, corn straw, wheat straw, medical stone, soybean meal, cottonseed hull, glucose, etc., all contain different nutrients, such as cellulose, protein, minerals, vitamins, etc., which have a direct impact on the growth of edible fungi. When less raw materials are added in the comparative example, the nutrients of the culture medium are not comprehensive, thereby affecting the growth of edible fungi.

[0124] In the examples, the pH value of the culture medium is adjusted by adding citric acid, while in the comparative examples, the pH value may not be adjusted or the adjustment method may be different, which will affect the growth environment of the edible fungi because different edible fungi have different adaptability to pH values.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0126] In addition, those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the above claims, any one of the claimed embodiments may be used in any combination. The information disclosed in this background technology section is intended only to deepen the understanding of the overall background technology of the present application and should not be regarded as an admission or in any form of implication that the information constitutes prior art known to those skilled in the art.

Claims

1. An edible fungus culture medium, characterized in that: The raw materials thereof, calculated based on the total mass as 100%, include: Sunflower straw 15%-20%, corn straw 15%-20%, wheat straw 15%-20%, medical stone 1%-5%, soybean meal 5%-15%, cottonseed hull 10%-20%, glucose 1%-5%, organic acid 0.1%-1%, water 10%-20%.

2. The edible fungus culture medium according to claim 1, characterized in that The organic acid includes citric acid.

3. A method for preparing the edible fungus culture medium according to claim 1 or 2, characterized in that: include: The sunflower straw, the corn straw, the wheat straw, the medical stone, the soybean meal, the cottonseed hull, the glucose and the water are mixed and sterilized to obtain a sterilized material; The sterilized material and the organic acid are mixed to obtain an edible fungus culture medium.

4. The method for preparing the edible fungus culture medium according to claim 3, characterized in that: The sunflower straw, the corn straw and the wheat straw are pre-wetted before use.

5. The method for preparing the edible fungus culture medium according to claim 4, characterized in that: The pre-wetting process comprises: Soaking the sunflower straw, the corn straw, and the wheat straw to obtain soaked straw; crushing the soaked straw to obtain crushed straw; The crushed straw is subjected to high pressure treatment.

6. The method for preparing the edible fungus culture medium according to claim 5, characterized in that: At least one of the following conditions is met: A. The soaking time is 6h-8h; B. The length of the crushed straw is 1cm-3cm; C. The pressure of the high pressure treatment is 0.3MPa-0.5MPa.

7. The method for preparing the edible fungus culture medium according to claim 3, characterized in that: The sterilization temperature is 120°C-130°C, and the time is 2h-3h.

8. The method for preparing the edible fungus culture medium according to any one of claims 3 to 7, characterized in that: The pH value of the edible fungus culture medium is 5.5-6.

5.

9. Use of the edible fungus culture medium according to claim 1 or 2, characterized in that: Used for the cultivation of edible fungi.

10. The use of the edible fungus culture medium according to claim 9, characterized in that: The edible fungi include Pleurotus ostreatus and / or Agaricus bisporus.

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