Microcapsule type feed additive and preparation method thereof

Abstract

The invention relates to the technical field of feed additives, in particular to a microcapsule type feed additive and a preparation method thereof. The microcapsule type feed additive comprises a component material A, a component material B and a component material C, and the mass ratio of the component material A to the component material B to the component material C is 1: (0.4-0.6): (2-3); the raw materials of the component A comprise soybean phospholipid and lysine hydrochloride. According to the invention, the solid veins are prepared into powder, in the fermentation process of mesophyll, microorganisms participating in fermentation can secrete protease to act on protein in the mulberry leaf mesophyll and decompose macromolecular structures into small-molecular peptides and amino acids, small-molecular substances are more easily digested and absorbed by dairy cows, the protein intake of the dairy cows is increased, and the yield of the dairy cows is increased. After the dairy cow intakes more protein, more sufficient raw materials are provided for synthesizing milk protein by the mammary gland, so that the protein content of the milk is favorably increased.

Description

Technical Field

[0001] The invention relates to the technical field of feed additives, in particular to a microcapsule feed additive and a preparation method thereof. Background Art

[0002] Feed additives are additives used as additional additives in the production and processing of animal feed. Their main raw materials are various nutrients that meet the growth needs of animals. They can improve feed quality and promote animal growth.

[0003] In the prior art, during the feeding process of dairy cows, it is necessary to supplement the nutrition of dairy cows by using feed additives. However, the absorption efficiency of protein by the digestive system of dairy cows is low, which affects the protein intake of dairy cows. Based on this, the present invention provides a microcapsule feed additive and a preparation method thereof. Summary of the invention

[0004] The object of the present invention is to provide a microcapsule feed additive and a preparation method thereof. After the microcapsule feed additive prepared by the present invention is made into dairy cow feed and fed to dairy cows, the obtained milk has a higher protein content, which effectively improves the use performance of the microcapsule feed additive.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a microcapsule feed additive, comprising a component A material, a component B material and a component C material, wherein the mass ratio of the component A material, the component B material and the component C material is 1: (0.4-0.6): (2-3);

[0007] The raw materials of the A component material include soybean lecithin and lysine hydrochloride, and the mass ratio of the soybean lecithin to lysine hydrochloride is 1:0.5;

[0008] The raw materials of the B component material include mulberry leaves, wormwood leaves, garlic powder, black bean powder, and salt, wherein the weight percentage of each raw material of the B component material is: 10-20% wormwood leaves, 8-12% garlic powder, 8-12% black bean powder, 4-8% salt, and the balance is mulberry leaves;

[0009] The raw materials of the C component material include alkenyl succinate starch and deionized water, and the mass ratio of the alkenyl succinate starch to the deionized water is 1:(3-4).

[0010] Furthermore, the mulberry leaves are pretreated, and the pretreatment method of the mulberry leaves is: fresh mulberry leaves are selected, and the mulberry leaves are soaked in clean water for 20 to 30 minutes. After soaking, they are washed and drained, and a pectinase solution is prepared and placed in a water bath. The mulberry leaves are added to the water bath, and the water bath is heated to 40 to 50° C., and the reaction is kept warm for 70 to 80 minutes. Stirring is continuously maintained during the reaction, and after the reaction is finished, an enzymatic solution is obtained.

[0011] Furthermore, the mass of the pectinase solution is 2 to 3 times that of mulberry leaves, and the concentration of the pectinase solution is 0.5 to 0.7%.

[0012] Furthermore, the enzymatic hydrolyzate is filtered after being cooled to room temperature, and a liquid material and a solid material are obtained after solid-liquid separation.

[0013] Furthermore, the liquid material is added into a fermentation barrel, and brown sugar water is added into the fermentation barrel, wherein the mass of the brown sugar water is 40-60% of the liquid material, and the concentration of the brown sugar water is 4-6%. After being evenly mixed, the box is sealed and fermented for 14-16 days, and the fermentation barrel is deflated every 2 days. After the fermentation is completed, clean water is added to dilute it 10-20 times to obtain the fermentation liquid.

[0014] Furthermore, the solid material is rinsed with deionized water for 3 to 5 times, placed in an oven at 40 to 50° C. for drying for 10 to 20 minutes, ground after drying, and sieved through 200 meshes to obtain powder.

[0015] Furthermore, the mugwort leaves are pretreated, and the pretreatment method of the mugwort leaves is: fresh mugwort leaves are selected, put into an oven, the oven is set at 40-50°C for drying for 10-20 minutes, and then ground into powder after drying, and then sieved through 200 mesh to complete the pretreatment of the mugwort leaves.

[0016] Furthermore, the garlic powder, black bean powder and salt are all dry powders, and the garlic powder, black bean powder and salt are all sieved through 200 meshes.

[0017] Furthermore, the alkenyl succinate starch and deionized water are mixed to prepare the wall material.

[0018] In a second aspect, the present invention provides a method for preparing a microcapsule feed additive, comprising the following steps:

[0019] S1: core material preparation, the fermentation liquid, powder, garlic powder, black bean powder, and salt are added to a mixer, the mixer is set at 120-160 r / min and stirred for 8-12 min, then component A and pretreated wormwood are added to the mixer, the mixer is set at 200-240 r / min and stirred for 8-12 min to obtain the core material;

[0020] S2: The core material and the wall material are added to a mixer, and the mixer is set at 200-240 r / min and stirred for 8-12 minutes to obtain a mixed solution, and the mixed solution is added to a high-pressure homogenizer, and the high-pressure homogenizer is set at 30-50 MPa, and the number of treatments is 3-5 times to obtain an emulsion;

[0021] S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 10-12 MPa, the rotation speed is 12000-14000 r / min, the air inlet temperature is 160-180° C., and the air outlet temperature is 60-80° C. to obtain a microcapsule feed additive.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the present invention, mulberry leaves, wormwood leaves, garlic powder, black bean powder and salt are added in the process of preparing microcapsule feed additives. Among them, the protein, vitamins and zinc elements rich in mulberry leaves can provide nutrients for feed additives, which is helpful for the growth and development of dairy cows. After the mulberry leaves are enzymatically hydrolyzed, the mesophyll and veins of the mulberry leaves are separated. The liquid mesophyll after enzymatic hydrolysis is fermented to prepare a fermentation liquid, and the solid veins are made into powder. During the fermentation of the mesophyll, the microorganisms involved in the fermentation will secrete proteases to act on the proteins in the mesophyll of the mulberry leaves, decomposing their macromolecular structures into small molecular peptides and amino acids. Small molecular substances are more easily digested and absorbed by dairy cows, thereby increasing the protein intake of dairy cows. After dairy cows ingest more protein, more sufficient raw materials are provided for the mammary gland to synthesize milk protein, thereby helping to increase the protein content of milk.

[0024] 2. By processing the mulberry leaves, the mulberry leaves are separated into leaf pulp and leaf veins for separate addition. While the leaf pulp alone provides more protein supply, the cows ingest the leaf veins alone during feeding. The leaf veins have high hardness and toughness, which can promote saliva secretion in the rumen of the cow, promote rumen fermentation, and improve the cow's digestion efficiency of feed. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] This embodiment provides a microcapsule feed additive, comprising component A material, component B material and component C material, wherein the mass ratio of component A material, component B material and component C material is 1: (0.4-0.6): (2-3);

[0027] The raw materials of component A include soybean lecithin and lysine hydrochloride, and the mass ratio of soybean lecithin to lysine hydrochloride is 1:0.5;

[0028] The raw materials of component B material include mulberry leaves, wormwood leaves, garlic powder, black bean powder, and salt, wherein the weight percentage of each raw material of component B material is: 10-20% wormwood leaves, 8-12% garlic powder, 8-12% black bean powder, 4-8% salt, and the balance is mulberry leaves;

[0029] The raw materials of the C component material include alkenyl succinate starch and deionized water, and the mass ratio of the alkenyl succinate starch to the deionized water is 1:(3-4).

[0030] In some embodiments, mulberry leaves are pretreated, and the pretreatment method of mulberry leaves is: select fresh mulberry leaves, soak the mulberry leaves in clean water for 20 to 30 minutes, wash and drain after soaking, prepare pectinase solution and put it in a water bath, add mulberry leaves to the water bath, heat the water bath to 40 to 50°C, keep warm for 70 to 80 minutes, keep stirring during the insulation reaction, and obtain enzymolysis solution after the insulation reaction is completed.

[0031] In some embodiments, the mass of the pectinase solution is 2 to 3 times that of mulberry leaves, and the concentration of the pectinase solution is 0.5 to 0.7%.

[0032] In some embodiments, the enzymatic hydrolyzate is filtered after being cooled to room temperature, and a liquid material and a solid material are obtained after solid-liquid separation.

[0033] In some embodiments, liquid material is added to a fermentation barrel, and brown sugar water is added to the fermentation barrel. The mass of the brown sugar water is 40-60% of the liquid material, and the concentration of the brown sugar water is 4-6%. After mixing evenly, the box is sealed and fermented for 14-16 days. The fermentation barrel is deflated every 2 days. After fermentation is completed, clean water is added to dilute it 10-20 times to obtain a fermentation liquid.

[0034] In some embodiments, the solid material is rinsed with deionized water for 3 to 5 times, placed in an oven set at 40 to 50° C. for drying for 10 to 20 minutes, ground after drying, and sieved through 200 mesh to obtain a powder.

[0035] In some embodiments, the wormwood leaves are pretreated, and the pretreatment method of the wormwood leaves is: select fresh wormwood leaves, put the wormwood leaves into an oven, set the oven to 40-50°C for drying for 10-20 minutes, grind the leaves after drying, and sieve through 200 mesh after grinding to complete the pretreatment of the wormwood leaves.

[0036] In some embodiments, the garlic powder, black bean powder and salt are all selected from dry powders, and the garlic powder, black bean powder and salt are all sieved through 200 mesh.

[0037] In some embodiments, alkenyl succinate starch and deionized water are mixed to prepare the wall material.

[0038] In some embodiments, a method for preparing a microcapsule feed additive comprises the following steps:

[0039] S1: Preparation of core material: fermentation liquid, powder, garlic powder, black bean powder and salt are added to a mixer, the mixer is set at 120-160 r / min and stirred for 8-12 min, then component A and pretreated wormwood are added to the mixer, the mixer is set at 200-240 r / min and stirred for 8-12 min to obtain the core material;

[0040] S2: The core material and the wall material are added to a mixer, which is set at 200-240 r / min and stirred for 8-12 minutes to obtain a mixed solution, which is added to a high-pressure homogenizer, which is set at 30-50 MPa and processed 3-5 times to obtain an emulsion;

[0041] S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 10-12 MPa, the rotation speed is 12000-14000 r / min, the air inlet temperature is 160-180°C, and the air outlet temperature is 60-80°C to obtain a microcapsule feed additive.

[0042] In this embodiment, mulberry leaves, wormwood leaves, garlic powder, black bean powder, and salt are added during the preparation of the microcapsule feed additive. The mulberry leaves are rich in protein, vitamins, and zinc, which can provide nutrients for the feed additive and help the growth and development of dairy cows. After the mulberry leaves are enzymatically hydrolyzed, the mesophyll and veins of the mulberry leaves are separated. The liquid mesophyll after enzymatic hydrolysis is fermented to prepare a fermentation liquid, and the solid veins are prepared into a powder. During the fermentation of the mesophyll, the microorganisms involved in the fermentation will secrete proteases to act on the proteins in the mesophyll of the mulberry leaves, decomposing its macromolecular structure into small molecular peptides. And amino acids, small molecules are easier to be digested and absorbed by dairy cows, which increases the protein intake of dairy cows. After dairy cows ingest more protein, they provide more sufficient raw materials for the mammary gland to synthesize milk protein, which helps to increase the protein content of milk. By processing mulberry leaves, the mulberry leaves are separated into leaf flesh and leaf veins for separate addition. While the leaf flesh is added separately to provide more protein supply, dairy cows ingest leaf veins separately during feeding. Leaf veins have high hardness and toughness, which can promote saliva secretion in the rumen of dairy cows, promote rumen fermentation, and improve the digestion efficiency of dairy cows for feed.

[0043] Based on the above embodiments, the inventors also conducted the following experiments:

[0044] It should be noted that the raw materials used in the following experiments are all commercially available raw materials.

[0045] Experiment 1:

[0046] Raw material preparation: A component material, B component material and C component material, the mass ratio of A component material, B component material and C component material is 1:(0.4):(2), the raw materials of A component material include soybean lecithin and lysine hydrochloride, the mass ratio of soybean lecithin and lysine hydrochloride is 1:0.5, the raw materials of B component material include mulberry leaves, mugwort leaves, garlic powder, black bean powder and salt, wherein the weight percentage of each raw material of B component material is: 10% mugwort leaves, 8% garlic powder, 8% black bean powder, 4% salt, and the balance is mulberry leaves, the raw materials of C component material include alkenyl succinate starch and deionized water, the mass ratio of alkenyl succinate starch and deionized water is 1:(3), garlic powder, black bean powder and salt are all selected as dry powder, garlic powder, black bean powder and salt are all sieved through 200 mesh, alkenyl succinate starch and deionized water are mixed to obtain wall material;

[0047] The pretreatment method of mulberry leaves is as follows: fresh mulberry leaves are selected, the mulberry leaves are placed in clean water and soaked for 20 minutes, the leaves are washed and drained after soaking, a pectinase solution is prepared and placed in a water bath, the mass of the pectinase solution is twice that of the mulberry leaves, the concentration of the pectinase solution is 0.5%, the mulberry leaves are added to the water bath, the water bath is heated to 40°C, the heat preservation reaction is carried out for 70 minutes, stirring is continuously maintained during the heat preservation reaction, after the heat preservation reaction is completed, an enzymolysis solution is obtained, the enzymolysis solution is cooled to room temperature and then filtered, and a liquid material and a solid material are obtained after solid-liquid separation;

[0048] The liquid material is added into the fermentation barrel, and brown sugar water is added into the fermentation barrel, the mass of the brown sugar water is 40% of the liquid material, and the concentration of the brown sugar water is 4%. After being evenly mixed, the box is sealed and fermented for 14 days, and the fermentation barrel is vented every 2 days. After the fermentation is completed, clean water is added to dilute it 10 times to obtain the fermentation liquid;

[0049] The solid material was rinsed with deionized water for 3 times, placed in an oven set at 40°C for drying for 10 minutes, ground after drying, and sieved through 200 meshes to obtain powder;

[0050] The pretreatment method of mugwort leaf is as follows: fresh mugwort leaf is selected, the mugwort leaf is put into an oven, the oven is set at 40°C for drying for 10 minutes, and then the powder is ground and sieved with 200 meshes to complete the pretreatment of the mugwort leaf;

[0051] Preparation of microcapsule feed additives:

[0052] S1: Preparation of core material: fermentation liquid, powder, garlic powder, black bean powder and salt are added to a mixer, the mixer is set at 120r / min and stirred for 8min, then component A material and pretreated wormwood are added to the mixer, the mixer is set at 200r / min and stirred for 8min to obtain the core material;

[0053] S2: The core material and the wall material are added to a mixer, which is set at 200 r / min and stirred for 8 minutes to obtain a mixed solution, which is added to a high-pressure homogenizer, which is set at 30 MPa and processed 3 times to obtain an emulsion;

[0054] S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 10 MPa, the rotation speed is 12000 r / min, the inlet air temperature is 160°C, and the outlet air temperature is 60°C, to obtain a microcapsule feed additive.

[0055] Experiment 2:

[0056] Raw material preparation: A component material, B component material and C component material, the mass ratio of A component material, B component material and C component material is 1: (0.5): (2.5), the raw materials of A component material include soybean lecithin and lysine hydrochloride, the mass ratio of soybean lecithin and lysine hydrochloride is 1: 0.5, the raw materials of B component material include mulberry leaves, mugwort leaves, garlic powder, black bean powder and salt, wherein the weight percentage of each raw material of B component material is: 15% mugwort leaves, 10% garlic powder, 10% black bean powder, 6% salt, and the balance is mulberry leaves, the raw materials of C component material include alkenyl succinate starch and deionized water, the mass ratio of alkenyl succinate starch and deionized water is 1: (3.5), garlic powder, black bean powder and salt are all selected as dry powder, garlic powder, black bean powder and salt are all sieved through 200 mesh, alkenyl succinate starch and deionized water are mixed to obtain wall material;

[0057] The pretreatment method of mulberry leaves is as follows: fresh mulberry leaves are selected, the mulberry leaves are placed in clean water and soaked for 25 minutes, the leaves are washed and drained after soaking, a pectinase solution is prepared and placed in a water bath, the mass of the pectinase solution is 2.5 times that of the mulberry leaves, the concentration of the pectinase solution is 0.6%, the mulberry leaves are added to the water bath, the water bath is heated to 45°C, the heat preservation reaction is carried out for 75 minutes, stirring is continuously maintained during the heat preservation reaction, after the heat preservation reaction is completed, an enzymolysis solution is obtained, the enzymolysis solution is cooled to room temperature and then filtered, and a liquid material and a solid material are obtained after solid-liquid separation;

[0058] The liquid material is added into the fermentation barrel, and brown sugar water is added into the fermentation barrel, the mass of the brown sugar water is 50% of the liquid material, and the concentration of the brown sugar water is 5%. After being evenly mixed, the box is sealed and fermented for 15 days, and the fermentation barrel is vented every 2 days. After the fermentation is completed, clean water is added to dilute it 15 times to obtain the fermentation liquid;

[0059] The solid material was rinsed with deionized water for 4 times, placed in an oven set at 45°C for drying for 15 minutes, ground after drying, and sieved through 200 meshes to obtain powder;

[0060] The pretreatment method of mugwort leaf is as follows: fresh mugwort leaf is selected, the mugwort leaf is put into an oven, the oven is set at 45°C for drying for 15 minutes, and then the powder is ground and sieved with 200 meshes to complete the pretreatment of the mugwort leaf;

[0061] Preparation of microcapsule feed additives:

[0062] S1: Preparation of core material: fermentation liquid, powder, garlic powder, black bean powder and salt are added to a mixer, the mixer is set to 140r / min and stirred for 10min, then component A material and pretreated wormwood are added to the mixer, the mixer is set to 220r / min and stirred for 10min to obtain the core material;

[0063] S2: The core material and the wall material are added to a mixer, and the mixer is set at 220r / min and stirred for 10min to obtain a mixed solution, which is added to a high-pressure homogenizer, and the high-pressure homogenizer is set at 40MPa. The treatment times are 4 times to obtain an emulsion;

[0064] S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 11 MPa, the rotation speed is 13000 r / min, the inlet air temperature is 170°C, and the outlet air temperature is 70°C, to obtain a microcapsule feed additive.

[0065] Experiment 3:

[0066] Raw material preparation: A component material, B component material and C component material, the mass ratio of A component material, B component material and C component material is 1:(0.6):(3), the raw materials of A component material include soybean lecithin and lysine hydrochloride, the mass ratio of soybean lecithin and lysine hydrochloride is 1:0.5, the raw materials of B component material include mulberry leaves, mugwort leaves, garlic powder, black bean powder and salt, wherein the weight percentage of each raw material of B component material is: 20% mugwort leaves, 12% garlic powder, 12% black bean powder, 8% salt, and the balance is mulberry leaves, the raw materials of C component material include alkenyl succinate starch and deionized water, the mass ratio of alkenyl succinate starch and deionized water is 1:(4), garlic powder, black bean powder and salt are all selected as dry powder, garlic powder, black bean powder and salt are all sieved through 200 mesh, alkenyl succinate starch and deionized water are mixed to obtain wall material;

[0067] The pretreatment method of mulberry leaves is as follows: fresh mulberry leaves are selected, the mulberry leaves are placed in clean water and soaked for 30 minutes, the leaves are washed and drained after soaking, a pectinase solution is prepared and placed in a water bath, the mass of the pectinase solution is 3 times that of the mulberry leaves, the concentration of the pectinase solution is 0.7%, the mulberry leaves are added to the water bath, the water bath is heated to 50°C, the heat preservation reaction is performed for 80 minutes, stirring is continuously maintained during the heat preservation reaction, after the heat preservation reaction is completed, an enzymolysis solution is obtained, the enzymolysis solution is cooled to room temperature and then filtered, and a liquid material and a solid material are obtained after solid-liquid separation;

[0068] The liquid material is added into the fermentation barrel, and brown sugar water is added into the fermentation barrel, the mass of the brown sugar water is 60% of the liquid material, and the concentration of the brown sugar water is 6%. After being evenly mixed, the box is sealed and fermented for 16 days, and the fermentation barrel is vented every 2 days. After the fermentation is completed, clean water is added to dilute it 20 times to obtain the fermentation liquid;

[0069] The solid material was rinsed with deionized water for 5 times, placed in an oven set at 50°C for drying for 20 minutes, ground after drying, and sieved through 200 meshes to obtain powder;

[0070] The pretreatment method of mugwort leaf is as follows: fresh mugwort leaf is selected, the mugwort leaf is put into an oven, the oven is set at 50°C for drying for 20 minutes, and then the powder is ground and then sieved with 200 meshes to complete the pretreatment of the mugwort leaf;

[0071] Preparation of microcapsule feed additives:

[0072] S1: Preparation of core material: fermentation liquid, powder, garlic powder, black bean powder and salt are added to a mixer, the mixer is set at 160r / min and stirred for 12 minutes, then component A and pretreated wormwood are added to the mixer, the mixer is set at 240r / min and stirred for 12 minutes to obtain the core material;

[0073] S2: The core material and the wall material are added to a mixer, and the mixer is set at 240r / min and stirred for 12 minutes to obtain a mixed solution, which is added to a high-pressure homogenizer, and the high-pressure homogenizer is set at 50MPa. The treatment times are 5 times to obtain an emulsion;

[0074] S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 12MPa, the rotation speed is 14000r / min, the inlet air temperature is 180°C, and the outlet air temperature is 80°C, to obtain a microcapsule feed additive.

[0075] Comparative Example 1: The difference between this comparative example and Experiment 1 is that:

[0076] This comparative example does not contain Artemisia argyi.

[0077] Comparative Example 2: The difference between this comparative example and Experiment 1 is that:

[0078] This comparative example does not contain mulberry leaves.

[0079] Comparative Example 3: The difference between this comparative example and Experiment 1 is that:

[0080] In this comparative example, no pretreatment was performed on the mulberry leaves.

[0081] Comparative Example 4: The difference between this comparative example and Experiment 1 is that:

[0082] In this comparative example, an equal amount of soybean powder was used to replace mulberry leaves.

[0083] Performance test: The performance test was carried out on the microcapsule feed additives prepared in Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, and the test data obtained are recorded in the following table:

[0084]

[0085] In the performance test, the main ingredients of the dairy cow feed were first prepared, and the main ingredient formula was 40% corn, 20% soybean meal, 15% bran, 20% alfalfa hay, and 5% bean cake. The microcapsule feed additives prepared by Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4 were used to prepare dairy cow feed respectively, and the addition amount of urea-based animal feed additives was 6% of the mass of the main ingredient. Seven batches of dairy cows were fed with different dairy cow feeds prepared by the microcapsule feed additives prepared by Experiment 1, Experiment 2, Experiment 3, Comparative Example 1, Comparative Example 2, Comparative Example 3 and Comparative Example 4, each batch of dairy cows had 10 cows, and on the 1st, 14th and 21st days of feeding, the milk protein content of each batch of dairy cows (10 cows) was tested to obtain the average protein content of milk produced by each batch of dairy cows.

[0086] By comparing and analyzing the relevant data in the table, it can be seen that after the microcapsule feed additive prepared by the present invention is made into cow feed and fed to cows, the milk obtained has a higher protein content. This shows that the microcapsule feed additive and the preparation method thereof provided by the present invention have a broader market prospect and are more suitable for promotion.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0088] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A microcapsule feed additive, characterized in that: It comprises component A material, component B material and component C material, wherein the mass ratio of component A material, component B material and component C material is 1:(0.4-0.6):(2-3); The raw materials of the A component material include soybean lecithin and lysine hydrochloride, and the mass ratio of the soybean lecithin to lysine hydrochloride is 1:0.5; The raw materials of the B component material include mulberry leaves, wormwood leaves, garlic powder, black bean powder, and salt, wherein the weight percentage of each raw material of the B component material is: 10-20% wormwood leaves, 8-12% garlic powder, 8-12% black bean powder, 4-8% salt, and the balance is mulberry leaves; The raw materials of the C component material include alkenyl succinate starch and deionized water, and the mass ratio of the alkenyl succinate starch to the deionized water is 1:(3-4).

2. The microcapsule feed additive according to claim 1, characterized in that: The mulberry leaves are pretreated, and the pretreatment method of the mulberry leaves is: fresh mulberry leaves are selected, the mulberry leaves are placed in clean water and soaked for 20 to 30 minutes, the mulberry leaves are washed and drained after soaking, a pectinase solution is prepared and placed in a water bath, the mulberry leaves are added to the water bath, the water bath is heated to 40 to 50° C., and the heat preservation reaction is carried out for 70 to 80 minutes, stirring is continuously maintained during the heat preservation reaction, and after the heat preservation reaction is completed, an enzymatic hydrolyzate is obtained.

3. The microcapsule feed additive according to claim 2, characterized in that: The mass of the pectinase solution is 2 to 3 times that of mulberry leaves, and the concentration of the pectinase solution is 0.5 to 0.7%.

4. The microcapsule feed additive according to claim 3, characterized in that: The enzymatic hydrolyzate is cooled to room temperature and then filtered, and a liquid material and a solid material are obtained after solid-liquid separation.

5. The microcapsule feed additive according to claim 4, characterized in that: The liquid material is added into a fermentation barrel, and brown sugar water is added into the fermentation barrel, wherein the mass of the brown sugar water is 40-60% of the liquid material and the concentration of the brown sugar water is 4-6%. After being evenly mixed, the box is sealed and fermented for 14-16 days, and the fermentation barrel is vented every 2 days. After the fermentation is completed, clean water is added to dilute it 10-20 times to obtain the fermentation liquid.

6. The microcapsule feed additive according to claim 4, characterized in that: The solid material is rinsed with deionized water for 3 to 5 times, put into an oven set at 40 to 50° C. for drying for 10 to 20 minutes, ground after drying, and sieved through 200 meshes to obtain powder.

7. The microcapsule feed additive according to claim 1, characterized in that: The wormwood leaves are pretreated, and the wormwood leaves pretreatment method is: fresh wormwood leaves are selected, put into an oven, the oven is set at 40-50°C for drying for 10-20 minutes, and then ground into powder after drying, and then sieved through 200 meshes to complete the wormwood leaves pretreatment.

8. The microcapsule feed additive according to claim 1, characterized in that: The garlic powder, black bean powder and salt are all dry powders, and the garlic powder, black bean powder and salt are all sieved through 200 meshes.

9. The microcapsule feed additive according to claim 1, characterized in that: The alkenyl succinate starch and deionized water are mixed to prepare the wall material.

10. A method for preparing a microcapsule feed additive according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: core material preparation, the fermentation liquid, powder, garlic powder, black bean powder, and salt are added to a mixer, the mixer is set at 120-160 r / min and stirred for 8-12 min, then component A and pretreated wormwood are added to the mixer, the mixer is set at 200-240 r / min and stirred for 8-12 min to obtain the core material; S2: The core material and the wall material are added to a mixer, and the mixer is set at 200-240 r / min and stirred for 8-12 minutes to obtain a mixed solution, and the mixed solution is added to a high-pressure homogenizer, and the high-pressure homogenizer is set at 30-50 MPa, and the number of treatments is 3-5 times to obtain an emulsion; S3: The emulsion is input into a pressure atomizer, the pressure of the pressure atomizer is set to 10-12 MPa, the rotation speed is 12000-14000 r / min, the air inlet temperature is 160-180° C., and the air outlet temperature is 60-80° C. to obtain a microcapsule feed additive.

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