Treatment method for improving utilization rate of edible mushroom substrate

Abstract

The invention relates to the field of edible mushroom substrates, in particular to a treatment method for improving the utilization rate of an edible mushroom substrate. The method comprises the following steps: uniformly spraying a chemical reagent solution on lignocellulose, compacting and granulating, and carrying out stacking reaction to obtain a lignocellulose material; and mixing the lignocellulose material with other auxiliary materials to prepare the edible mushroom substrate for edible mushroom cultivation. According to the method, chemical reagents are added, densification granulation treatment is combined, and the enzyme digestibility of the lignocellulose material is remarkably improved by destroying a complex lignocellulose structure in the lignocellulose raw material, so that hyphae of edible fungi more easily intrude into lignocellulose. According to the method, the cooperative relationship between the density of densification granulation treatment and the stacking time is further optimized, the stability of the physical structure of the edible mushroom substrate is improved, the utilization rate of the edible mushroom substrate is further improved, and finally the yield and the biological efficiency of the edible mushrooms are remarkably improved.

Description

Technical Field

[0001] The invention relates to the field of edible fungus substrates, and in particular to a processing method for improving the utilization rate of edible fungus substrates. Background Art

[0002] At present, most of the raw materials for edible fungi cultivation are made of sawdust, cottonseed hulls, straw, corn cobs, etc., which are all good feed raw materials. With the rapid development of the edible fungi industry, the application of these raw materials in the edible fungi cultivation process has increased significantly. However, because the felling of trees is strictly restricted, the production of many edible fungi using broad-leaved wood as raw materials is limited by raw materials. The scarcity of raw materials for edible fungi has become one of the important factors restricting the further development of this industry. Therefore, the source, screening and development of raw materials used to cultivate edible fungi have become the main focus and research direction of many scholars in the fields of food and agriculture.

[0003] According to preliminary estimates, about 2.5 million tons of forest resources are consumed in the production of edible fungi every year. Cultivating edible fungi with sawdust as the main material and doping with some auxiliary materials can make the nutritional content of cooked material cultivation higher, which is second only to cottonseed husk. At present, in the process of edible fungi cultivation, coarse sawdust or hard miscellaneous sawdust from broad-leaved trees is often used. During use, rotten sawdust or moldy sawdust cannot be used. In a dry and ventilated environment, sawdust with a relatively long storage time should be used to make edible fungi mixing materials. Before the preparation of the culture medium, it is usually necessary to crush the dried wood into sawdust particles with a diameter of 0.5 to 1 cm, irrigate with water, and then place it outdoors for natural stacking for several months. Water can be added in the middle as needed. During the stacking process, the internal temperature of the material can reach above 60°C, which can better promote the formation and development of edible fungi fruiting bodies. However, in the above method, the sawdust stacking time is too long, and the dry weight conversion rate of the edible fungi base material is basically within 10 to 20%, indicating that the utilization rate of lignocellulose raw materials is not high.

[0004] Therefore, it is very necessary to improve the utilization rate of edible fungi substrate and further promote the yield and biological efficiency of edible fungi. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a processing method for improving the utilization rate of edible fungus substrate in view of the deficiencies of the prior art.

[0006] In order to solve the above technical problems, the present invention discloses a processing method for improving the utilization rate of edible fungus substrate.

[0007] A processing method for improving the utilization rate of edible fungi substrates, the method destroys the complex lignocellulose structure inside the edible fungi substrates, making it easier for edible fungi hyphae to invade the lignocellulose, thereby improving the utilization of the lignocellulose. The edible fungi substrate prepared by the method can effectively improve the yield and biological efficiency of edible fungi.

[0008] The specific steps are as follows: spraying the chemical reagent solution evenly on the wood cellulose, performing a stacking reaction after densification and granulation to obtain the wood cellulose material; and then mixing the wood cellulose material with other auxiliary materials to prepare an edible fungus matrix for edible fungus cultivation.

[0009] Wherein, the mass percentage of the solvent of the chemical reagent to the wood cellulose is 0.01-15%.

[0010] Preferably, the mass percentage is 0.05-15%; more preferably, the mass percentage is 5-8%; and most preferably, the mass percentage is 8%.

[0011] After the densification and granulation, the wood cellulose particles are obtained, and the density is 0.4-0.8 g / cm 3 .

[0012] Preferably, the density is 0.5 to 0.8 g / cm 3 The preferred density is 0.65 to 0.8 g / cm 3 The most preferred density is 0.65 g / cm 3 .

[0013] Wherein, the particle size of the wood cellulose particles is 1 to 15 mm.

[0014] In some embodiments of the present invention, the lignocellulose particles have a particle size of 8 mm.

[0015] The granulation process may produce particles in the shape of any one or a combination of cylinders, spheres, squares, hexagons, tubes, flakes and customized shapes.

[0016] In some embodiments of the present invention, the granulation is in the shape of a cylinder.

[0017] Wherein, the chemical reagent includes any one of calcium hydroxide, calcium oxide, sodium hydroxide, calcium hydroxide, ammonia water, ammonium chloride, hydrogen peroxide, sulfuric acid, hydrochloric acid, phosphoric acid, boric acid, formic acid and urea.

[0018] Preferably, the chemical reagent is calcium hydroxide or sulfuric acid; more preferably, the chemical reagent is calcium hydroxide.

[0019] The lignocellulose includes any one or a combination of wood, crop straw, grass, and agricultural and forestry waste.

[0020] In some embodiments of the present invention, the lignocellulose is miscellaneous wood chips in wood.

[0021] The wood cellulose is pulverized to a particle size of 30 to 200 meshes.

[0022] In some embodiments of the present invention, the miscellaneous wood chips are pulverized to have a particle size of 60 meshes.

[0023] The water content of the wood cellulose after being uniformly sprayed with chemical reagents is 20-50wt%.

[0024] In some embodiments of the present invention, the moisture content of the wood chips after being uniformly sprayed with chemical reagents is 30-40wt%.

[0025] The stacking reaction is carried out under the following conditions: stacking at room temperature for 7 to 60 days.

[0026] In some embodiments of the present invention, the stacking reaction time is 7 to 30 days.

[0027] Preferably, the stacking reaction time is 7 to 15 days; more preferably, the stacking reaction time is 7 days or 15 days.

[0028] The other auxiliary materials include any one or a combination of cottonseed hulls, straw, corn flour, rice bran, husks, corn cobs, bean cake powder, soybean powder, wheat bran, bagasse, glucose, sucrose, gypsum, lime and superphosphate.

[0029] The mass percentage of the wood cellulose material in the edible fungus matrix is ​​20-95%, and the rest is other auxiliary materials.

[0030] In some embodiments of the present invention, the weight percentage of the lignocellulosic material in the edible fungus matrix is ​​60%, and the rest is other auxiliary materials.

[0031] In some embodiments of the present invention, the other auxiliary materials include 20% cottonseed hulls, 17% wheat bran, 1% gypsum, 1% lime and 1% superphosphate in percentage by weight.

[0032] Among them, the edible fungi include any one or a combination of the following: Pleurotus eryngii, Flammulina velutipes, Lentinula edodes, Auricularia auricula, Tremella fuciformis, Hydrangea, Auricularia auricula, Pleurotus velutipes, Ganoderma lucidum, Bamboo fungus, Agrocybe fasciatus, Pleurotus eryngii, Pleurotus eryngii, Stropharia officinalis, and Agaricus bisporus.

[0033] In some embodiments of the present invention, the edible fungus is Pleurotus ostreatus or Lepidium melongena.

[0034] Specifically, by processing the edible fungus matrix raw materials, the yield and agronomic traits of Pleurotus ostreatus or Pleurotus eryngii are effectively improved.

[0035] Beneficial effects:

[0036] (1) The present invention provides a processing method for improving the utilization rate of edible fungi substrate, wherein a chemical reagent solution is uniformly sprayed on lignocellulose, and after densification and granulation, a stacking reaction is performed to obtain a lignocellulose material; the lignocellulose material is then mixed with other auxiliary materials to prepare an edible fungi substrate for edible fungi cultivation.

[0037] (2) The present invention significantly improves the enzymatic digestibility of lignocellulose materials by destroying the complex lignocellulose structure inside the lignocellulose raw materials through the synergistic effect of adding chemical reagents and densification granulation treatment, thereby destroying the structure of lignocellulose and effectively promoting its decomposition, making it easier for edible fungus hyphae to invade lignocellulose.

[0038] (3) The present invention further improves the synergistic relationship between the density of the densification granulation process and the stacking time, thereby improving the physical structure stability of the edible fungus matrix and improving the utilization rate of the edible fungus matrix, ultimately significantly improving the yield of edible fungi and their biological efficiency, and providing a scientific basis for the efficient cultivation of edible fungi.

[0039] (4) The treatment method of the present invention is simple, efficient, and has a wide range of applications. It is not only applicable to the cultivation of edible fungi such as Pleurotus ostreatus and golden needle provided by the present invention, but also applicable to the cultivation of other similar edible fungi. During use, the treated lignocellulose material and auxiliary materials are directly prepared into an edible fungi matrix, which is then bagged, boxed or bottled, sterilized, inoculated, and cultured using conventional techniques to complete the cultivation of the relevant edible fungi. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described in detail below with reference to the accompanying drawings, and the above and / or other advantages of the present invention will become more clear.

[0041] Figure 1 The enzyme digestibility of treated sawdust changes with the amount of chemical reagent added.

[0042] Figure 2 The SEM images of the sawdust before and after treatment. A is a loose control, B is the sawdust material treated with 8% calcium hydroxide, and C is the sawdust material treated with 5% sulfuric acid.

[0043] Figure 3 This is a real shot of the fruiting of the first batch of Pleurotus ostreatus in Example 2. Among them, A is the control group 1, B is the control group 2, and C is the miscellaneous sawdust density of 0.65g / cm in Example 2.3 The fruiting situation of the first batch of Pleurotus ostreatus.

[0044] Figure 4 This is a real shot of the fruiting of the golden needle mushroom in Example 3. Among them, A is the control group 1, B is the fruiting of the golden needle mushroom in the calcium hydroxide group of Example 4, and C is the fruiting of the golden needle mushroom in the sulfuric acid group of Example 4. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with specific implementations, and the above and / or other advantages of the present invention will become more clear.

[0046] The experimental methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials described are commercially available unless otherwise specified.

[0047] In the following embodiments, the Pleurotus ostreatus and Lepidium melongena are both commercially available edible fungi varieties.

[0048] Example 1: A processing method for improving the utilization rate of edible fungi substrate

[0049] (1) Physical crushing: Use dry sawdust as raw material and crush it into 60 mesh powder using a crusher. Then place the crushed sawdust powder in a ventilated place for later use.

[0050] (2) Preparation of chemical reagent solution: Add 0.5-150 g (specifically 0.5 g, 20 g, 50 g, 80 g, 150 g) of calcium hydroxide and 20-80 g (specifically 20 g, 50 g, 80 g) of sulfuric acid to 500 g of water, stir with a glass rod, and mix evenly.

[0051] (3) Granulation and stacking reaction: The chemical reagent solutions of different concentrations prepared in step (2) are uniformly sprayed onto 1 kg of the sawdust powder and fully and uniformly mixed. The powder is then compacted using a granulator and extruded into a diameter of 8 mm and a density of 0.65 g / cm 3 The miscellaneous sawdust particles are piled up and reacted at room temperature for 30 days to obtain the miscellaneous sawdust material.

[0052] The mixed sawdust which was not treated with chemical reagents and was not densified was used as a loose control, and the mixed sawdust which was not treated with chemical reagents but was densified was used as a densified control.

[0053] On the 30th day, samples were taken and 352±20 FPU / mL of commercial cellulase was added. CTec2 enzyme was added to 0.6 g of the reacted sawdust material, and the reaction was carried out at 50°C and 250 rpm for 48 h. The enzyme digestibility of the sawdust material was measured. Figure 1As shown in the figure, with the increase of calcium hydroxide addition, the conversion rate of glucan after enzymatic hydrolysis gradually increased. When the addition amount of calcium hydroxide was 8% (mass percentage), that is, 0.08g / g dry matter, the conversion rate of glucan was 28.8%, which was 198.9% and 132.9% higher than the loose control and the compacted control, respectively, and the conversion rate was significantly improved (P<0.05); but when the addition amount of calcium hydroxide was 15%, the conversion rate of glucan was not significantly different from that of 8% calcium hydroxide. With the increase of sulfuric acid addition, the conversion of glucan after enzymatic hydrolysis first increased and then decreased. When the addition amount of sulfuric acid was 5% (mass percentage), that is, 0.05g / g dry matter, the conversion rate of glucan was 20.7%, which was 115.2% and 67.7% higher than the loose control and the compacted control, respectively, and the conversion rate was significantly improved (P<0.05), but inferior to that of calcium hydroxide treatment. In addition, the enzymatic hydrolysis efficiency of the compacted control was significantly higher than that of the loose control, an increase of 33.22%. This shows that the compaction treatment destroyed the dense structure of lignocellulose through physical extrusion, increased the contact area between the enzyme and cellulose, and reduced the porosity of the material, making the reaction system more uniform, thereby improving the enzymatic hydrolysis efficiency.

[0054] The above results show that in the pretreatment stage of edible fungus matrix, under the synergistic effect of chemical reagents and physical extrusion, the structure of lignocellulose can be significantly destroyed and its decomposition can be effectively promoted. This treatment has a positive effect on improving the degradability of edible fungus matrix raw materials.

[0055] Figure 2 The SEM images of the sawdust before and after pretreatment are further shown. Figure 2 A in is a loose control. Figure 2 B is the miscellaneous sawdust material treated with 8% calcium hydroxide. Figure 2 C in the figure is the sawdust material treated with 5% sulfuric acid. It can be seen that after pretreatment, the surface structure of the sawdust is obviously damaged.

[0056] Example 2: A processing method for improving the utilization rate of edible fungi substrate

[0057] (1) Physical crushing: Use dry sawdust as raw material and crush it into 60 mesh powder using a crusher. Then place the crushed sawdust powder in a ventilated place for later use.

[0058] (2) Prepare chemical reagent solution: Add 80 g of calcium hydroxide into 500 g of water and stir with a glass rod to mix evenly.

[0059] (3) Granulation and stacking reaction: The chemical reagent solution prepared in step (2) was evenly sprayed onto 1 kg of the sawdust powder, and after being fully and evenly mixed, it was extruded into a granulator with a diameter of 8 mm and a density of 0.5 g / cm3 , 0.65g / cm 3 , 0.8g / cm 3 The particles are piled up and reacted at room temperature for 15 days to obtain miscellaneous wood chips.

[0060] The untreated sawdust was used as control group 1; the treated sawdust was treated with 8% Ca(OH) 2 Mixed but not densified (the density of undensified wood chips is 0.4g / cm 3 ) The miscellaneous sawdust that was used for the pushing reaction was the control group 2.

[0061] The above different types of sawdust materials were used to form edible fungus matrix by weight percentage, including 60% sawdust materials, 20% cottonseed hulls, 17% wheat bran, 1% gypsum, 1% lime and 1% superphosphate, each bag weighing 1.2 kg, and 20 bags were made. Then, Pleurotus ostreatus was cultivated on the edible fungus matrix with different treatments, and cultured at 25°C for 60 days to compare the yield of Pleurotus ostreatus on the different treatments of the cultivation matrix. The results are shown in Table 1.

[0062] Table 1 Yield of Pleurotus ostreatus on edible fungus substrate under different treatment conditions

[0063]

[0064] From the data in Table 1, we can see that

[0065] (1) The degree of compaction of sawdust significantly affects the yield of Pleurotus ostreatus: the density of compacted sawdust is between 0.5 and 0.8 g / cm 3 Within this range, the output first increases and then decreases. 3 The highest yield is 447.7±23.3g / bag, and the density is 0.8g / cm 3 The yield dropped back to 426.4±11.2 g / bag, indicating that too high density would also affect the permeability of the matrix or the distribution of nutrients, leading to a decrease in yield.

[0066] (2) Synergistic effect of densification treatment and Ca(OH)2: The yield of control group 2 (8% Ca(OH)2 treatment but not densified) was only slightly higher than that of control group 1, indicating that the improvement was limited when only Ca(OH)2 was used without densification. Further, in Example 2, 8% Ca(OH)2 densification treatment was performed, and it was found that the evaluation yield was significantly higher than that of control groups 1 and 2 without densification, for example, the density was 0.65 g / cm 3 The highest yield was 33.4% higher than that of control group 1 and 27.4% higher than that of control group 2, indicating that the synergistic effect of compaction treatment and Ca(OH)2 can effectively increase the yield of Pleurotus ostreatus. At the same time, the compacted materials can enhance the damage of chemical reagents to the materials, which is helpful to increase the yield of edible fungi.

[0067] Figure 3 The density of the wood chips in control group 1, control group 2 and embodiment 2 is 0.65 g / cm 3 The fruiting situation of the first batch of Pleurotus ostreatus. Combined with the data in Table 1, it can be seen that compared with the control group 1 and the control group 2, the use of chemical reagents + densified materials can make the mushrooms larger and more, and the yield is higher.

[0068] Example 3: A processing method for improving the utilization rate of edible fungi substrate

[0069] (1) Physical crushing: Use dry sawdust as raw material and crush it into 60 mesh powder using a crusher. Then place the crushed sawdust powder in a ventilated place for later use.

[0070] (2) Prepare chemical reagent solution: Add 80 g of calcium hydroxide into 500 g of water and stir with a glass rod to mix evenly.

[0071] (3) Granulation and stacking reaction: Spray the chemical reagent solution prepared in step (2) evenly onto 1 kg of sawdust powder and mix thoroughly. Use a granulator to extrude the powder into a diameter of 8 mm and a density of 0.65 g / cm 3 The pellets were piled at room temperature for 0, 7, 15, and 30 days to obtain the mixed sawdust materials. The mixed sawdust without any treatment was used as the control group 1.

[0072] The sawdust materials under different treatment conditions in step (3) were used to form an edible fungus matrix by weight percentage, including 60% sawdust materials, 20% cottonseed hulls, 17% wheat bran, 1% gypsum, 1% lime and 1% superphosphate, with each bag weighing 1.2 kg, and 20 bags were made. Then, Oyster mushrooms were cultivated on the edible fungus matrix with different treatments, and cultured at 25°C for 60 days to compare the yield of Oyster mushrooms under different treatment conditions. The results are shown in Table 2.

[0073] Table 2 Yield of Pleurotus ostreatus on edible fungus substrates at different stacking reaction times

[0074]

[0075] From the data in Table 2, it can be seen that the stacking reaction time has a significant effect on the yield of Pleurotus ostreatus. After 7 days of stacking reaction, the yield of Pleurotus ostreatus increased significantly. When the stacking reaction was 15 days, the yield of Pleurotus ostreatus was the highest, which was 33.4% higher than that of the control group 1. This shows that after a period of stacking of the compacted materials, the damage of the chemical reagents to the materials is strengthened, which helps to increase the yield of Pleurotus ostreatus.

[0076] Combined with the data in Table 1, it can be seen that the stacking reaction time and the densification treatment also have a synergistic effect. The densification degree of the miscellaneous wood chips has a significant effect on the stacking reaction time. The densification treatment (density of 0.65g / cm 3 ) and the stacking reaction time (15 days) significantly increased the yield of Pleurotus ostreatus. This indicates that the densification treatment destroyed the structure of lignocellulose by physical extrusion and increased the contact area between enzyme and cellulose, while the stacking reaction further promoted the decomposition of the matrix through the continuous action of chemical reagents. At the same time, when the density of the sawdust was 0.65 g / cm 3 , the output after stacking for 7 days, and the density of the miscellaneous wood chips is 0.5g / cm 3 There was no significant difference in the yield when the stacking time was 15 days. This shows that the higher the density of the sawdust, the more conducive it is to reducing the stacking reaction time of the material, but still achieving a higher yield of Pleurotus ostreatus.

[0077] Example 4: A processing method for improving the utilization rate of edible fungi substrate

[0078] (1) Physical crushing: Use dry sawdust as raw material and crush it into 60 mesh powder using a crusher. Then place the crushed sawdust powder in a ventilated place for later use.

[0079] (2) Prepare chemical reagent solution: add 80g of calcium hydroxide or 50g of sulfuric acid into 500g of water respectively, stir with a glass rod and mix evenly.

[0080] (3) Granulation and stacking reaction: Spray the chemical reagent solution prepared in step (2) evenly onto 1 kg of sawdust powder and mix thoroughly. Use a granulator to extrude the powder into a diameter of 8 mm and a density of 0.65 g / cm 3 The pellets were piled and reacted at room temperature for 15 days to obtain the mixed sawdust material. The mixed sawdust without any treatment was used as the control group 1.

[0081] The sawdust materials under different treatment conditions in step (3) were used to form an edible fungus matrix by weight percentage, with 60% sawdust materials, 20% cottonseed hulls, 17% wheat bran, 1% gypsum, 1% lime and 1% superphosphate, each bag weighing 1.2 kg, and 20 bags were made. Then, golden needles were cultivated on the edible fungus matrix with different treatments, and cultured at 20°C for 60 days, and the agronomic traits of golden needles and the mushroom yield of agaricus eryngii under different treatments were compared. The results are shown in Tables 3 and 4.

[0082] Table 3 Agronomic characteristics of Pleurotus eryngii grown on different edible fungus substrates

[0083] formula Cap length (mm) Cap thickness (mm) Stem length (mm) Stem diameter (mm) Control group 1 <![CDATA[30.75±2.8 c ]]> <![CDATA[2.19±0.2 b ]]> <![CDATA[91.31±4.4 b ]]> <![CDATA[2.29±0.5 c ]]> Example 4 - Calcium hydroxide group <![CDATA[39.22±3.1 a ]]> <![CDATA[3.12±0.7 a ]]> <![CDATA[109.07±6.6 a ]]> <![CDATA[2.83±0.3 b ]]> Example 4 - Sulfuric acid group <![CDATA[38.68±5.7 a ]]> <![CDATA[3.07±0.5 a ]]> <![CDATA[105.15±7.0 a ]]> <![CDATA[3.11±0.6 a ]]>

[0084] like Figure 4As shown, A, B, and C are the actual photos of the fruiting of golden needle mushrooms in the control group 1, the example 4-calcium hydroxide group, and the example 4-sulfuric acid group, respectively. It can be seen that compared with the control group 1, the golden needle mushrooms in the example 4-calcium hydroxide group and the example 4-sulfuric acid group not only have more single mushrooms, but also have more mushrooms with large caps; the example 4-calcium hydroxide group has better properties. Combined with the data in Table 3, it can be seen that after the miscellaneous sawdust is treated with chemical reagents to compact and then pushed to react, the edible fungus matrix obtained by calcium hydroxide treatment can make the mushroom cap larger and the stem longer than the control group 1; and the edible fungus matrix treated with sulfuric acid can make the stem thicker.

[0085] Table 4 The yield of golden needles on edible fungus substrates with different treatments

[0086]

[0087] As shown in Table 4, the production of edible fungi can be significantly increased by using the wood chips compacted by chemical reagents and then stacked for reaction, and then using them for the preparation of edible fungi matrix. The production of edible fungi in the calcium hydroxide group of Example 4 increased by 50.74% compared with the control group 1, and the production of edible fungi in the sulfuric acid group of Example 4 increased by 27.57% compared with the control group 1. The calcium hydroxide group of Example 4 was better.

[0088] The present invention provides a method and idea for improving the utilization rate of edible fungi substrate. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A processing method for improving the utilization rate of edible fungi substrate, characterized in that: The chemical reagent solution is uniformly sprayed on the wood cellulose, and after being compacted and granulated, a stacking reaction is performed to obtain a wood cellulose material; the wood cellulose material is then mixed with other auxiliary materials to prepare an edible fungus matrix for edible fungus cultivation; Wherein, the mass percentage of the solvent of the chemical reagent to the wood cellulose is 0.01 to 15%; After the densification and granulation, the wood cellulose particles are obtained, and the density is 0.4-0.8 g / cm 3 .

2. The processing method according to claim 1, characterized in that: The chemical reagent includes any one of calcium hydroxide, calcium oxide, sodium hydroxide, calcium hydroxide, ammonia water, ammonium chloride, hydrogen peroxide, sulfuric acid, hydrochloric acid, phosphoric acid, boric acid, formic acid, and urea.

3. The processing method according to claim 2, characterized in that: The chemical reagent is calcium hydroxide or sulfuric acid.

4. The processing method according to claim 1, characterized in that: The lignocellulose includes any one or a combination of wood, crop straw, grass, and agricultural and forestry wastes; the lignocellulose is pulverized to have a particle size of 30 to 200 meshes.

5. The processing method according to claim 1, characterized in that: The water content of the wood cellulose after being uniformly sprayed with chemical reagents is 20-50wt%.

6. The processing method according to claim 1, characterized in that: The mass percentage of the solvent of the chemical reagent to the wood cellulose is 5-8%.

7. The processing method according to claim 1, characterized in that: After densification and granulation, wood cellulose particles are obtained with a density of 0.5-0.8 g / cm 3 .

8. The processing method according to claim 1, characterized in that: The stacking reaction is carried out under the following conditions: stacking at room temperature for 7 to 60 days.

9. The processing method according to claim 1, characterized in that: The other auxiliary materials include any one or a combination of several of cottonseed hulls, rice straw, corn flour, rice bran, husks, corn cobs, bean cake powder, soybean powder, wheat bran, bagasse, glucose, sucrose, gypsum, lime and superphosphate.

10. The processing method according to claim 9, characterized in that: The mass percentage of the wood cellulose material in the edible fungus matrix is ​​20-95%, and the rest is other auxiliary materials.

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