CN117604800A - A wood fiber softening composite enzyme preparation and its preparation method - Google Patents

Abstract

The invention discloses a wood fiber softening compound enzyme preparation and a preparation method thereof, and relates to the technical field of papermaking pulping. The complex enzyme preparation comprises a component A, a component B and a component C which are matched for use; and the component A, the component B and the component C are independently packaged; the component A is acid liquor, and the component B and the component C are granular; the component B comprises biological enzyme particles A, an isolation layer A, an inner layer package A and an outer layer package A; when in use, the component B is firstly put into the component A, and after the outer layer coating A is destroyed by stirring, the mixture of the component B, the component A and the component C are put into pulping together. The invention divides the product into the A component, the B component and the C component, wherein, only a small amount of the A component is in a liquid state, and the B component and the C component are in solid particles, thus being convenient for transportation as a whole.

Description

A wood fiber softening composite enzyme preparation and its preparation method

Technical field

The invention belongs to the technical field of papermaking and pulping, and in particular relates to a wood fiber softening composite enzyme preparation and a preparation method thereof.

Background technique

Beating enzyme is a special compound enzyme preparation for papermaking (grinding). It is used for pretreatment of pulp before grinding to improve the beating (grinding) performance. It can comprehensively optimize the papermaking production process, achieve energy saving and improve production quality and efficiency. effect and improve production efficiency.

For example, CN104153243A discloses a new type of fiber-modified biological enzyme preparation that promotes beating, including an aqueous solution. The aqueous solution contains 0.2% to 1% of the total mass of fatty alcohol polyoxyethylene ether and 0.1% to 2% of polyoxyethylene. and 0.01%~0.05% calcium propionate. The aqueous solution also contains endo-cellulase, exo-cellulase and xylanase; its mechanism of action is to selectively degrade pulp raw materials through cellulase The water-soluble colloidal substances and useless tiny fibers in the slurry can improve the removal of free water in the mesh part and the pressing part to achieve the purpose of improving water filtration. In actual users, there is also a problem that the biological enzyme preparation is in a liquid state as a whole, making it difficult to transport the product in practice.

Contents of the invention

The object of the present invention is to provide a wood fiber softening composite enzyme preparation and a preparation method thereof. By dividing the product into component A, component B and component C, only a small amount of component A is in liquid state, and component B and C The components are all in solid granular form, which solves the problem of difficult transportation of existing products.

In order to solve the above technical problems, the present invention is implemented through the following technical solutions:

The invention is a wood fiber softening composite enzyme preparation, which includes component A, component B and component C used together; and the component A, component B and component C are independently packaged; the component A It is a weak acid solution; the B component and the C component are both in granular form; the B component includes the biological enzyme particle A, as well as the isolation layer A and the inner layer wrapping A around the outside of the biological enzyme particle A from the inside to the outside. And the outer layer package A; the C component includes the biological enzyme particle B, and the isolation layer B and the outer layer package B wrapped around the biological enzyme particle B from the inside to the outside; the biological enzyme particle A is a cellulase particle ; The biological enzyme particles B include one or more of chitosanase particles, oligosaccharase particles, hyaluronidase enzyme particles and alcohol enzyme particles;

Wherein, the isolation layer A and the isolation layer B are composed of dextrin, starch, polyvinyl alcohol, sodium dodecyl sulfonate, and sodium sulfate; the outer wrapping B and the inner wrapping A are both hyaluronic acid layer; the outer layer wrapping A is a chitosan layer; when in use, first put B component into A component, stir until the outer layer wrapping A is destroyed, and then mix B component and A component and Component C is put into the beating together.

Further, the size of the biological enzyme particles A and B is between 1 and 3 mm; the particle sizes of the B component and C component are both between 2 and 4.5 mm.

Further, the biological enzyme particles A account for 70-85% of the total weight of component B; the isolation layer A accounts for 5-12% of the total weight of component B; and the inner layer wrapping A accounts for the total weight of component B. 5-12%; the outer layer package A accounts for 5-12% of the total weight of component B.

Further, the biological enzyme particles B account for 75-85% of the total weight of component C; the isolation layer B accounts for 5-15% of the total weight of component C; and the outer wrapping B accounts for the total weight of component C. 5-15%.

Further, the weak acid solution is one of formic acid, lactic acid, malic acid, ascorbic acid, acetic acid, tartaric acid, oxalic acid, benzoic acid, salicylic acid and boric acid.

Further, the biological enzyme granule A consists of 70-80% cellulase, 3-6% dextrin, 5-13% starch, 3-8% lactose, 0.5-1% sodium dodecyl sulfonate, micron Crystalline cellulose is composed of 3-7%; the cellulase includes Cx enzyme, C1 enzyme and CB enzyme.

Further, the biological enzyme granule B is composed of dextrin 3-6%, starch 5-13%, lactose 3-8%, sodium dodecyl sulfonate 0.5-1%, microcrystalline cellulose 3-7% and The remaining enzyme particles are composed of; the enzyme particles include one or more of chitosan enzyme particles, oligosaccharase particles, hyaluronidase enzyme particles and alcohol enzyme particles.

A method for preparing a wood fiber softening composite enzyme preparation, which includes preparing component B and component C respectively;

The preparation of component B includes:

Weigh each component of the isolation layer B in proportion, add water to prepare a suspension with a mass-to-volume ratio of 5%-8%, and pass it through a 100-mesh sieve to obtain the mixed liquid A; take the biological enzyme particles A and place them in the fluidized bed Medium; adjust the inlet air temperature to 40-80°C, the air volume to 80m/h-180m/h, the atomization pressure to 1.2bar-2.5bar, use a 0.8mm-1.5mm spray gun, and spray mixed liquid A evenly at a speed of 8rpm-20rpm to obtain biological Enzyme particles A are heated and dried to form an inner package B and an outer package B on the surface of the biological enzyme particles A by spraying;

The preparation of component C includes:

Weigh each component of the isolation layer A in proportion, add water to prepare a suspension with a mass-to-volume ratio of 5%-8%, and pass it through a 100-mesh sieve to obtain the mixed liquid B; take the biological enzyme particles B and place them in the fluidized bed Medium, adjust the inlet air temperature to 40-80°C, the air volume to 80m/h-180m/h, the atomization pressure to 1.2bar-2.5bar, select a 0.8mm-1.5mm spray gun, and spray mixed liquid B evenly at a speed of 8rpm-20rpm to obtain biological Enzyme particles B are heated and dried, and then the outer layer package B is formed on the surface of the biological enzyme particles B by spraying.

Further, the preparation methods of the biological enzyme granules A and biological enzyme granules B are the same; both include first sieving each component of the formula, mixing evenly, and putting them into a centrifugal granulator, adjusting the rotation speed to 600rpm-1200rpm, and the fan to 10Hz-20Hz , using water as a binder and a spray speed of 15rpm-50rpm to form enzyme-containing particles; place the prepared enzyme-containing particles in a fluidized bed, set the air inlet temperature to 40℃-80℃, and the air volume to 100m/h-180 m /h, dry until the material temperature reaches 35℃-70℃, stop the machine, and complete the drying of enzyme-containing granules.

Further, take chitosan and dissolve it in acetic acid to form a chitosan-acetic acid solution; take the biological enzyme particles A and spray the inner layer for wrapping. The air inlet temperature is 50-55°C. First, spray the chitosan-acetic acid solution to wrap and solidify for 15- 20min; then spray the outer layer of hyaluronic acid coating solution, the inlet air temperature is 45-50°C, and dry for 30-40min after spraying to obtain component B.

The invention has the following beneficial effects:

The present invention divides the product into component A, component B and component C, of which only a small amount of component A is in liquid state, and both component B and component C are in solid granular form, making it convenient to transport as a whole; at the same time, through external The setting of layer Wrapped B and inner Wrapped A protects the biological enzyme particles inside and effectively prevents the biological enzyme particles from prematurely contacting water and being inactivated; at the same time, a small amount of hyaluronic acid is introduced into the paper to improve the water retention of the paper. performance, thereby improving the water absorption performance of the paper.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the drawings needed to describe the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention and are not relevant to the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the particle structure of component B of the present invention;

Figure 2 is a schematic diagram of the particle structure of component C of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surroundings", etc. The indication of orientation or positional relationship is only to facilitate the description of the present invention and simplify the description. It does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. .

The invention is a wood fiber softening composite enzyme preparation. The composite enzyme preparation includes liquid component A, and solid component B and component C;

When using, first add an appropriate amount of water to component A for dilution, then add component B into component A and stir. After stirring, add the mixture of component B, component A, and component C into the pulp together. use.

Among them, component A is a 10mol/L acetic acid solution; add water to dilute to 0.5-1.5mol/L before use.

As shown in Figure 1, component B includes biological enzyme particles A11, and an isolation layer A12, an inner layer of packaging A13, and an outer layer of packaging A14 wrapped around the outside of the biological enzyme particles A11 from the inside to the outside; the biological enzyme particles A11 are composed of cellulase 75 %, dextrin 5%, starch 9%, lactose 6%, sodium dodecyl sulfonate 0.75%, microcrystalline cellulose 4.25%; cellulase includes Cx enzyme, C1 enzyme and CB enzyme.

As shown in Figure 2, component C includes biological enzyme granules B21, an isolation layer B22 wrapped around the outside of the biological enzyme granules B21 from the inside to the outside, and an outer layer wrapping B23. The biological enzyme granules B21 are composed of 5% dextrin, 8% starch, It consists of 5% lactose, 1% sodium dodecyl sulfonate, 5% microcrystalline cellulose and the remainder of enzyme particles; the enzyme particles consist of chitosanase particles, oligosaccharase particles, hyaluronidase enzyme particles and Composed of alcohol enzyme particles.

And based on the above, in the present invention, the size of the biological enzyme particles A11 and the biological enzyme particles B21 is between 1-3mm; the particle sizes of the B component and C component are both between 2-4.5mm;

Biological enzyme particles A11 account for 75% of the total weight of component B; isolation layer A12 accounts for 8% of the total weight of component B; inner package A13 accounts for 9% of the total weight of component B; outer package A14 accounts for the total weight of component B. 8% heavier.

The biological enzyme particles B21 account for 80% of the total weight of component C; the isolation layer B22 accounts for 10% of the total weight of component C; and the outer layer B23 accounts for 10% of the total weight of component C.

It can be understood that in some other possible embodiments, the acetic acid used in the present invention can also be replaced by one of formic acid, lactic acid, malic acid, ascorbic acid, tartaric acid, oxalic acid, benzoic acid, salicylic acid and boric acid. And both can achieve similar technical effects.

In the present invention, the isolation layer A12 and the isolation layer B22 are both composed of dextrin, starch, polyvinyl alcohol, sodium dodecyl sulfonate, and sodium sulfate; the outer wrapping B23 and the inner wrapping A13 are both hyaluronic acid layers ;The outer layer wrapped A13 is a chitosan layer;

Specifically, during actual use, component B acts under the action of component A, that is, chitosan acts under the action of acetic acid solution and generates chitosan acetate , which is white and translucent. It is an amorphous solid with a pH value close to neutral after being dissolved in water. The solution is clear and transparent and has stable properties; at the same time, the chitosan layer is used to form a package to avoid the structural damage of the isolation layer B22 and the inactivation of the enzyme in the biological enzyme granule A11; and In the present invention, the outer layer of A13 is used to introduce a certain amount of chitosan layer during the beating process. Part of the chitosan in the chitosan layer reacts with the acetic acid solution, and the other part of the chitosan reacts with the chitosanase particles. Hydrolysis occurs under the action to obtain a product, which has a certain antibacterial function, and the paper prepared in the experiment has a certain antibacterial function; and can be used for pulping in the production of toilet paper.

At the same time, in the present invention, the biological enzyme particles located inside are protected through the arrangement of the outer layer package B23 and the inner layer package A13, effectively preventing the biological enzyme particles from prematurely contacting water and being inactivated; at the same time, a small amount is introduced into the paper The hyaluronic acid improves the water retention performance of the paper, thereby improving the water absorption performance of the paper. After the hyaluronic acid of the present invention is dissolved in water, oligosaccharase particles, hyaluronidase enzyme particles and alcohol enzyme particles are released from the C component; under the action of the hyaluronidase enzyme particles, part of the hyaluronic acid is hydrolyzed to generate hyaluronic acid And oligosaccharides, oligosaccharides are hydrolyzed under the action of oligosaccharase particles to obtain monosaccharides; and monosaccharides are hydrolyzed to obtain carbon dioxide and alcohol. Alcohol is first converted into acetaldehyde under the action of alcohol enzyme, and then acetaldehyde will be converted into alcohol again. Acetic acid is formed under the action of enzymes; the alcohol enzyme includes alcohol dehydrogenase and acetaldehyde dehydrogenase; through the above settings, it is avoided that the prepared paper contains a large amount of sugar due to the introduction of hyaluronic acid, etc.

Of course, according to actual production use and product transportation needs, the mass proportions of biological enzyme granules A11 and biological enzyme granules B21 in their respective systems can be adjusted.

For example, formula 1: biological enzyme particles A11 account for 70% of the total weight of component B; isolation layer A12 accounts for 10% of the total weight of component B; inner package A13 accounts for 10% of the total weight of component B; outer package A14 accounts for 10% of the total weight of component B. 10% of the total weight of component B.

Biological enzyme particles B21 account for 85% of the total weight of component C; the isolation layer B22 accounts for 7% of the total weight of component C; and the outer layer B23 accounts for 8% of the total weight of component C.

For example, in Formula 2, bioenzyme granules A11 account for 85% of the total weight of component B; isolation layer A12 accounts for 5% of the total weight of component B; inner package A13 accounts for 5% of the total weight of component B; outer package A14 accounts for 5% of the total weight of component B. 5% of the total weight of the component.

Biological enzyme particles B21 account for 75% of the total weight of component C; the isolation layer B22 accounts for 12% of the total weight of component C; and the outer layer B23 accounts for 13% of the total weight of component C.

Of course, the respective preparation formulas of bioenzyme granules A11 and bioenzyme granules B21 will be adjusted according to actual production use and product transportation needs.

For example, formula 1: Bioenzyme Granule A11 is composed of 70% cellulase, 5% dextrin, 10% starch, 7% lactose, 1% sodium dodecyl sulfate, and 7% microcrystalline cellulose; Bioenzyme Granule B21 It is composed of 35% dextrin, 12% starch, 6% lactose, 0.5% sodium dodecyl sulfate, 4% microcrystalline cellulose and the remainder of enzyme particles.

For example, formula 2: Bio-enzyme granules A11 are composed of 80% cellulase, 3% dextrin, 10% starch, 3% lactose, 0.5% sodium dodecyl sulfate, and 3.5% microcrystalline cellulose; Bio-enzyme granules B21 It is composed of 5% dextrin, 10% starch, 6% lactose, 1% sodium dodecyl sulfate, 6% microcrystalline cellulose and the remainder of enzyme particles.

Among the above, cellulase includes Cx enzyme, C1 enzyme and CB enzyme. Enzyme particles include chitosan enzyme particles, oligosaccharide enzyme particles, hyaluronidase enzyme particles and alcohol enzyme particles.

A method for preparing a wood fiber softening composite enzyme preparation, which includes preparing component B and component C respectively;

Preparation of component B includes:

Weigh each component of the isolation layer B22 in proportion, add water to prepare a suspension with a mass-to-volume ratio of 5%-8%, and pass it through a 100-mesh sieve to obtain the mixed liquid A; take the biological enzyme granule A11 and place it in the fluidized bed Medium; adjust the inlet air temperature to 40-80°C, the air volume to 80m/h-180m/h, the atomization pressure to 1.2bar-2.5bar, use a 0.8mm-1.5mm spray gun, and spray mixed liquid A evenly at a speed of 8rpm-20rpm to obtain biological Enzyme particles A are heated and dried to form an inner package B13 and an outer package B14 by spraying on the surface of the biological enzyme particles A;

Preparation of component C includes:

Weigh each component of the isolation layer A12 in proportion, add water to prepare a suspension with a mass-to-volume ratio of 5%-8%, and pass it through a 100-mesh sieve to obtain the mixed liquid B; take the biological enzyme particles B21 and place them in the fluidized bed Medium, adjust the inlet air temperature to 40-80°C, the air volume to 80m/h-180m/h, the atomization pressure to 1.2bar-2.5bar, select a 0.8mm-1.5mm spray gun, and spray mixed liquid B evenly at a speed of 8rpm-20rpm to obtain biological Enzyme particles B are heated and dried, and then the outer layer package B23 is formed on the surface of the biological enzyme particles B by spraying.

The preparation methods of bio-enzyme granules A11 and bio-enzyme granules B21 are the same; they both include sieving each component of the formula, mixing them evenly, and putting them into a centrifugal granulator. Adjust the speed to 600rpm-1200rpm, the fan to 10Hz-20Hz, and use water as a binder. mixture, with a spray speed of 15rpm-50rpm to form enzyme-containing particles; place the prepared enzyme-containing particles in a fluidized bed, set the air inlet temperature to 40°C-80°C, and the air volume to 100m/h-180m/h, and dry to When the material temperature reaches 35℃-70℃, the machine will be stopped to complete the drying of enzyme-containing granules.

Dissolve chitosan in acetic acid to form a chitosan-acetic acid solution; take biological enzyme particles A and spray the inner layer for wrapping. The inlet air temperature is 50-55°C. First spray the chitosan-acetic acid solution to wrap and solidify for 15-20 minutes; then Spray the outer layer of hyaluronic acid coating solution, the inlet air temperature is 45-50°C, and dry for 30-40 minutes after spraying to obtain component B.

In the description of this specification, reference to the terms "one embodiment," "example," "specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one aspect of the invention. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are only intended to help illustrate the invention. The preferred embodiments do not describe all details, nor do they limit the invention to the specific implementations described. Obviously, many modifications and variations are possible in light of the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A wood fiber softening complex enzyme preparation, which is characterized in that: comprises a component A, a component B and a component C which are matched for use; and the component A, the component B and the component C are independently packaged;

the component A is weak acid solution;

the component B and the component C are granular;

the component B comprises biological enzyme particles A (11), an isolation layer A (12) wrapped outside the biological enzyme particles A (11) from inside to outside, an inner layer wrapping A (13) and an outer layer wrapping A (14);

the component C comprises biological enzyme particles B (21), an isolation layer B (22) and an outer layer package B (23), wherein the isolation layer B (22) is wrapped outside the biological enzyme particles B (21) from inside to outside;

the biological enzyme particles A (11) are cellulase particles;

the biological enzyme particles B (21) comprise one or more of chitosan enzyme particles, oligosaccharase particles, hyaluronidase enzyme particles and alcoholise particles;

wherein the isolation layer A (12) and the isolation layer B (22) are composed of dextrin, starch, polyvinyl alcohol, sodium dodecyl sulfate and sodium sulfate; the outer layer package B (23) and the inner layer package A (13) are both hyaluronic acid layers; the outer layer package A (13) is a chitosan layer;

when in use, the component B is firstly put into the component A, and after the outer layer package A (13) is destroyed by stirring, the component B, the mixture of the component A and the component C are put into pulping together.

2. A wood fiber softening complex enzyme formulation according to claim 1, wherein the size of the bio-enzyme particles a (11) and B (21) is between 1-3mm; the particle size of the component B and the particle size of the component C are both 2-4.5mm.

3. A wood fiber softening complex enzyme formulation according to claim 1, wherein the bio-enzyme particles a (11) comprise 70-85% of the total weight of the B component; the isolation layer A (12) accounts for 5-12% of the total weight of the component B; the inner layer wrapping A (13) accounts for 5-12% of the total weight of the component B; the outer layer wrapping A (14) accounts for 5-12% of the total weight of the component B.

4. A wood fiber softening complex enzyme formulation according to claim 1, wherein the bio-enzyme particles B (21) comprise 75-85% of the total weight of component C; the isolation layer B (22) accounts for 5-15% of the total weight of the component C; the outer layer is wrapped with the B (23) accounting for 5-15% of the total weight of the component C.

5. The wood fiber softening complex enzyme formulation of claim 1, wherein the weak acid solution is one of formic acid, lactic acid, malic acid, ascorbic acid, acetic acid, tartaric acid, oxalic acid, benzoic acid, salicylic acid, and boric acid.

6. The wood fiber softening complex enzyme preparation of claim 1, wherein the biological enzyme granule a (11) consists of 70-80% of cellulase, 3-6% of dextrin, 5-13% of starch, 3-8% of lactose, 0.5-1% of sodium dodecyl sulfate and 3-7% of microcrystalline cellulose;

the cellulase comprises Cx enzyme, C1 enzyme and CB enzyme.

7. A wood fiber softening complex enzyme formulation according to claim 1, wherein the bio-enzyme particles B (21) consist of dextrin 3-6%, starch 5-13%, lactose 3-8%, sodium dodecyl sulfate 0.5-1%, microcrystalline cellulose 3-7% and the balance enzyme particles;

the enzyme particles include one or more of chitosan enzyme particles, oligosaccharase particles, hyaluronidase enzyme particles, and alcoholise enzyme particles.

8. A method of preparing a wood fiber softening complex enzyme formulation according to any one of claims 1 to 7, comprising separately preparing a B component and a C component;

the preparation of the component B comprises the following steps:

weighing each component of the isolation layer B (22) according to a proportion, adding water to prepare suspension with the mass-volume ratio of 5% -8%, and sieving the suspension with a 100-mesh standard sieve to obtain a mixed solution A; placing biological enzyme particles A (11) in a fluidized bed; adjusting the air inlet temperature to 40-80 ℃ and the air quantity to 80-180 m/h, wherein the atomization pressure is 1.2-2.5 bar, a spray gun with the thickness of 0.8-1.5 mm is selected, the mixed liquid A is uniformly sprayed at the speed of 8-20 rpm to obtain biological enzyme granules A, and the biological enzyme granules A are heated and dried to form an inner layer package B (13) and an outer layer package B (14) on the surface of the biological enzyme granules A in sequence through a spraying mode;

the preparation of the component C comprises the following steps:

weighing each component of the isolation layer A (12) according to a proportion, adding water to prepare suspension with the mass-volume ratio of 5% -8%, and sieving the suspension with a 100-mesh standard sieve to obtain a mixed solution B; placing biological enzyme particles B (21) in a fluidized bed, regulating the air inlet temperature to 40-80 ℃, the air quantity to 80m/h-180m/h, the atomization pressure to 1.2bar-2.5bar, selecting a spray gun with the thickness of 0.8mm-1.5mm, uniformly spraying the mixed solution B at the speed of 8rpm-20rpm to obtain biological enzyme particles B, heating and drying, and forming an outer layer coating B (23) on the surface of the biological enzyme particles B in a spraying mode.

9. The preparation method according to claim 8, wherein the preparation method of the biological enzyme particles a (11) and the biological enzyme particles B (21) is the same;

all the components are sieved according to the formula, mixed evenly, put into a centrifugal granulator, the rotating speed is regulated to 600rpm-1200rpm, the fan is 10Hz-20Hz, water is used as the adhesive, and the spraying speed is 15rpm-50rpm, so that enzyme-containing particles are formed; and (3) placing the prepared enzyme-containing particles in a fluidized bed, setting the air inlet temperature to be 40-80 ℃ and the air quantity to be 100m/h-180 m/h, drying until the material temperature reaches 35-70 ℃, and stopping the machine to finish the drying of the enzyme-containing particles.

10. The method of claim 8, wherein chitosan is dissolved in acetic acid to form a chitosan-acetic acid solution; spraying and coating the inner layer of the biological enzyme granules A, wherein the air inlet temperature is 50-55 ℃, and coating and curing by spraying chitosan-acetic acid solution for 15-20min; spraying the outer layer hyaluronic acid coating solution, and drying for 30-40min after spraying at 45-50deg.C to obtain component B.