Sheep colostrum immune globulin powder and preparation process thereof

Abstract

The invention discloses sheep colostrum immune globulin powder and a preparation process thereof, and relates to the technical field of protein powder. The sheep colostrum immune globulin powder is prepared from the following components in parts by weight: 200 to 250 parts of a sheep colostrum raw material, 350 to 400 parts of whole milk powder, 330 to 370 parts of skimmed milk powder, 30 to 50 parts of prebiotics, 8 to 12 parts of acerola cherry powder, 0.8 to 1.2 parts of lactoferrin, 0.4 to 0.6 part of N-acetylneuraminic acid and 0.3 to 0.5 part of probiotics. Diversified nutritional requirements of a human body are fully considered, various nutritional ingredients are matched with one another and have a synergistic effect, the nutritional ingredients can be better absorbed and utilized by the human body, comprehensive nutritional support is provided for consumers, and the requirements of daily nutritional supplement, physique enhancement, immunity improvement and the like are met.

Description

Technical Field

[0001] The invention relates to the technical field of protein powder, in particular to sheep colostrum immunoglobulin powder and a preparation process thereof. Background Art

[0002] In today's society, with rising health awareness and the continued rise of fitness, the protein powder market is booming, and related technological fields are also experiencing continuous exploration and innovation. Consumers are increasingly demanding protein powder products, eager to find nutritious, versatile, and reliable protein powders to meet their daily nutritional needs, enhance physical fitness, and boost immunity. Whether it's fitness enthusiasts hoping to use protein powder to aid muscle repair and growth, or the general public looking to supplement protein and other nutrients that may be missing from their daily diet, the market demand for high-quality protein powder is growing.

[0003] However, from an ingredient perspective, most protein powder products on the market exhibit relatively single ingredients. During the R&D and production processes, these products often overly focus on protein content, simplistically assuming that high protein content is the sole criterion for high-quality protein powder. In reality, however, the human body's nutritional needs are diverse. While protein is certainly important, other nutrients such as vitamins, minerals, and unsaturated fatty acids are equally essential. These nutrients interact in complex synergistic ways, ensuring optimal absorption and utilization by the body, maximizing their nutritional value. However, most existing protein powder products neglect this synergistic effect, resulting in an unbalanced nutritional profile and a failure to provide consumers with comprehensive nutritional support. Furthermore, traditional methods suffer from numerous drawbacks in their preparation processes. Improper control of process parameters in key steps such as sterilization, concentration, and drying can easily lead to nutrient loss and reduced activity. Therefore, developing a sheep colostrum immunoglobulin powder enriched with multiple nutrients and prepared using a scientifically sound process has become a pressing challenge in the protein powder technology landscape. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a sheep colostrum immunoglobulin powder and a preparation process thereof. By adjusting the component ratio of the protein powder and adopting a dry-wet composite preparation process, a protein powder is obtained that can better enhance the body's immunity, regulate intestinal flora and promote growth and development.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A sheep colostrum immunoglobulin powder comprises the following components by weight: 200-250 parts of sheep colostrum raw material, 350-400 parts of whole milk powder, 330-370 parts of skim milk powder, 30-50 parts of prebiotics, 8-12 parts of acerola cherry powder, 0.8-1.2 parts of lactoferrin, 0.4-0.6 parts of N-acetylneuraminic acid, and 0.3-0.5 parts of probiotics.

[0007] Furthermore, the goat colostrum raw material is selected from raw goat colostrum powder, goat colostrum powder or a combination thereof.

[0008] Furthermore, the prebiotics include oligofructose and oligoisomaltose in a mass ratio of 1:1, wherein the oligofructose is in powder form.

[0009] Furthermore, the probiotics include Bifidobacterium and Lactobacillus in a mass ratio of 1:1.

[0010] Furthermore, the Bifidobacterium is one of Bifidobacterium animalis subspecies lactis cect8145, Bifidobacterium longum subspecies longum cect7347, or a combination thereof.

[0011] The present invention also provides a process for preparing the above-mentioned sheep colostrum immunoglobulin powder, comprising:

[0012] S1, weighing the sheep colostrum powder raw material, adding it to sterilized water, stirring and dissolving it, to obtain the sheep colostrum emulsion;

[0013] S2, defatting the sheep colostrum emulsion to control the fat content in the emulsion to 0.5-1%; during this process, the temperature of the sheep colostrum emulsion is controlled at 40-45° C.;

[0014] S3, sterilization of defatted sheep colostrum emulsion;

[0015] S4, concentrating and freeze-drying the sterilized defatted sheep colostrum to obtain crystalline defatted sheep colostrum;

[0016] S5, dry-mixing the crystalline skimmed sheep colostrum with prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, probiotics, whole milk powder, and skimmed milk powder;

[0017] S6, packaging and inspecting the dry-mixed mixture, and then storing it in a warehouse to obtain sheep colostrum immunoglobulin powder.

[0018] Furthermore, in step S2, degreasing is performed by a continuous centrifuge, the rotation speed of the centrifuge is 5000-6000 r / min, and the centrifugation time is 10-15 min.

[0019] Furthermore, in step S4, a single-effect rising film evaporator is used to concentrate the sterilized defatted sheep colostrum emulsion. During the concentration process, the temperature of the defatted sheep colostrum emulsion is controlled at 40-50° C., the effect body temperature is 60-70° C., the steam pressure is 0.8-1.0 MPa, and the discharge concentration is controlled at 25-30% of dry matter.

[0020] Furthermore, in step S4, the concentrated defatted goat colostrum is freeze-dried in a cold dryer at a vacuum degree of 0.003-0.007 mbar.

[0021] Furthermore, in step S5, part of the crystalline skimmed sheep colostrum is premixed with prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, and probiotics, and the remaining crystalline skimmed sheep colostrum is dry-mixed with whole milk powder and skimmed milk powder.

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

[0023] (1) The sheep colostrum immunoglobulin powder provided by the present invention comprises multiple weight components such as sheep colostrum raw material, whole milk powder, skim milk powder, prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, and probiotics. Unlike most protein powder products on the market that have a single ingredient and overly focus on protein content, the present invention fully considers the diversified nutritional needs of the human body. Various nutrients cooperate with each other and work synergistically, and can be better absorbed and utilized by the human body, providing consumers with all-round nutritional support to meet the needs of daily nutritional supplements, physical fitness enhancement, and immunity enhancement. For example, acerola cherry powder is rich in nutrients such as vitamin C, and prebiotics help regulate intestinal flora, and work together with other nutrients such as protein to achieve greater nutritional value.

[0024] (2) When preparing the sheep colostrum immunoglobulin powder, the present invention first performs wet processing processes such as defatting, sterilizing, concentrating and freeze-drying on the sheep colostrum emulsion to obtain crystalline defatted sheep colostrum. This process can effectively remove the fat in the sheep colostrum and reduce the microbial content. Thereafter, the crystalline defatted sheep colostrum is dry-mixed with prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, probiotics, whole milk powder and skimmed milk powder. This dry-wet composite process combines the advantages of wet processing and dry processing. The wet processing can perform more refined processing and treatment of the sheep colostrum in a liquid state, ensuring the full dissolution and uniform distribution of nutrients, while better controlling microbial contamination. The dry mixing process avoids the destruction of heat-sensitive components (such as probiotics, lactoferrin, etc.) under conditions of high temperature and high humidity, and retains the activity of these components to the greatest extent. Compared with the traditional single wet process or dry process, the wet-dry composite process can make the product have good solubility and stability, and fully retain the activity of various nutrients, providing consumers with nutritious and highly active sheep colostrum immunoglobulin powder, further improving the quality and nutritional value of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a flow chart of the preparation process of the present invention. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the accompanying drawings and examples. The embodiments of the present invention include but are not limited to the following examples.

[0027] Example 1

[0028] This embodiment provides a sheep colostrum immunoglobulin powder, comprising the following components by weight: 230 kg of raw sheep colostrum powder, 370 kg of whole milk powder, 350 kg of skim milk powder, 20 kg of fructooligosaccharides, 20 kg of isomaltooligosaccharides, 10 kg of acerola cherry powder, 1 kg of lactoferrin, 0.5 kg of N-acetylneuraminic acid, 0.2 kg of Bifidobacterium, and 0.2 kg of Lactobacillus. The fructooligosaccharides are in powdered form, and the Bifidobacterium is Bifidobacterium animalis subsp. lactis CETS 8145 and Bifidobacterium longum subsp. longum CETS 7347 in a 1:1 weight ratio. When raw sheep colostrum non-fat milk solids are used, the dry weight is converted to 20.0%.

[0029] The method for preparing sheep colostrum immunoglobulin powder using the above raw materials is as follows Figure 1 As shown, the details are as follows:

[0030] 1. Raw material preparation

[0031] 1. Raw material acceptance

[0032] Colostrum powder raw materials (raw colostrum powder): In addition to routine testing (protein, fat, dry matter, non-fat milk solids, density, pH, etc.), they must also undergo testing for abnormal milk parameters (nitrite, antibiotics, microbial indicators, etc.). Raw materials must comply with the JS-ZL-018 - Raw Colostrum (Powder) Acceptance Standard and Inspection Plan requirements. Incoming raw materials that do not meet these standards and inspection plan requirements will be rejected. This hazard cannot be eliminated in subsequent processes, so the acceptance of colostrum raw materials in this process is designated as a critical control point.

[0033] Whole milk powder, skim milk powder, oligofructose, oligomaltosaccharide, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, bifidobacteria, and lactobacilli: Strict quality inspections are conducted in accordance with relevant national standards and internal company control standards, including sensory indicators, nutrient content, and microbiological indicators. For example, whole milk powder and skim milk powder must be checked for protein, fat, and moisture content; prebiotics must be tested for purity and activity; acerola cherry powder must focus on nutrients such as vitamin C; lactoferrin, N-acetylneuraminic acid, bifidobacteria, and lactobacilli must be tested for activity and content. Unqualified raw materials must not be used.

[0034] 2. Measurement

[0035] Use a high-precision electronic scale to accurately weigh the goat colostrum powder raw materials.

[0036] 3. Storage

[0037] Upon arrival, colostrum powder raw materials should be processed promptly. If this cannot be done promptly, they should be stored in a cool, dry warehouse (temperature ≤ 25°C, relative humidity ≤ 60%) for no more than 12 months. Temperature, humidity, and other related indicators should be monitored and records kept. Improper temperature and humidity control can cause colostrum powder raw materials to absorb moisture and deteriorate. This hazard, if not controlled, can cause significant damage and cannot be eliminated in subsequent processes.

[0038] Other raw materials should be classified and stored according to their respective storage requirements. For example, whole milk powder and skim milk powder should be stored in a dry and ventilated place, and Bifidobacterium and Lactobacillus should be stored in a low-temperature refrigeration.

[0039] 2. Dissolution and recovery

[0040] Add the sheep colostrum powder raw material in a certain proportion to sterilized pure water (such as high-temperature instantaneous sterilization, 121°C, 5s), and use a high-speed stirrer to stir and dissolve at a stirring speed of 300r / min and a stirring time of 15min to ensure that the powdered sheep colostrum is completely dissolved to form a uniform emulsion.

[0041] 3. Separation and degreasing process

[0042] 1. Separation: The dissolved and restored colostrum is separated and degreased by a continuous centrifuge. The centrifuge speed is controlled at 5000r / min and the separation time is 10 minutes to separate the fat from other components in the colostrum.

[0043] 2. Fat Collection and Testing: The separated fat can be collected separately for use in the production of other related products or further processing. The separated skim colostrum is also tested for fat content, with the fat content required to be between 0.5% and 1%. If the fat content does not meet the requirements, a secondary separation may be performed. This process is crucial for adjusting the fat content of the product and is designated as a critical control point.

[0044] 3. Temperature control: During the separation and degreasing process, the emulsion temperature is controlled at 40°C to ensure the separation effect and emulsion stability. Too high a temperature may cause protein denaturation, while too low a temperature will affect the fat separation efficiency.

[0045] 4. Sterilization

[0046] The purpose is to kill microorganisms and destroy enzyme activity in the defatted sheep colostrum. Generally, a high temperature and short time sterilization method is used, and the commonly used sterilization conditions are 60°C and maintained for 15 seconds.

[0047] 5. Concentration and drying

[0048] 1. Concentration: The sterilized defatted sheep colostrum emulsion is concentrated by a single-effect rising film evaporator. The temperature range of the defatted sheep colostrum emulsion is required to be 40°C, the effect body temperature is 60°C, the steam pressure is 0.8MPa, and the discharge concentration is controlled at 25% of dry matter.

[0049] Significant hazard analysis: The main hazard of this process is biological hazard. Effective control of most pathogenic bacteria and contaminating bacteria must be completed in this process. The main measure is to set the material sterilization temperature to 60-70℃.

[0050] 2. Freeze-drying: The concentrated defatted colostrum is passed through a freeze dryer under a vacuum of 0.003 mbar, sublimated at -80°C, and dried at +50°C. This removes most of the moisture, resulting in a dry, uniform, crystalline defatted colostrum product (semi-finished product). The semi-finished product is then packaged, inspected, and stored. Air filters must be rated at 140-200#, with exhaust temperatures between 60-75°C. Improper control of vacuum, sublimation, and drying temperatures can lead to excessive moisture, excessive bacteria and pathogens, and a shortened shelf life. These bacteria cannot be eliminated in subsequent steps, so they are designated as critical control points.

[0051] 6. Dry Mixing Process

[0052] 1. Premixing: After acceptance, the auxiliary materials (fructooligosaccharides, isomaltooligosaccharides, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, bifidobacterium, lactic acid bacteria) are taken out, sterilized and weighed, and the auxiliary materials are premixed with a part of the defatted sheep colostrum product (10kg) through a small material premixer for 6 minutes to ensure that these auxiliary materials are fully mixed with part of the defatted sheep colostrum.

[0053] 2. Dry Blending: Add the premix, remaining skim colostrum, whole milk powder, and skim milk powder to the dry blender and mix for 45 minutes. The dry blender uses a low-speed, uniform mixing method to ensure that all materials are evenly mixed. Uneven mixing during this step can lead to inconsistent nutrient distribution in the product, making it a critical control point.

[0054] 7. Measurement, packaging and finished product inspection system

[0055] 1. Strictly control the flow of people, goods, and air to prevent contamination. Perform related operations in a clean room.

[0056] 2. After being packaged, the qualified products enter the bulk packaging section and are packaged in polyethylene bags according to the bulk packaging requirements of different products. The packaging materials must meet the food packaging hygiene standards.

[0057] 3. The inspection center conducts random inspections of bulk-packaged products, known as semi-finished product inspections. Inspection items include sensory indicators, nutrient content (such as immunoglobulins, proteins, and vitamins), and microbiological indicators. Products that pass these inspections can proceed to the next process. Rejected products will be handled according to the "Rejected Product Control Procedure" in the "ISO9001 Procedure Document." This process is crucial to ensuring final product quality and is designated a critical control point.

[0058] 8. Acceptance, warehousing, storage, collection and disinfection of packaging materials

[0059] 1. Required packaging materials must be strictly inspected and accepted according to the "Packaging Material Acceptance Standards." After acceptance, qualified packaging materials must be stored in a cool, dry warehouse. Before use, cans must be dusted and the first outer packaging removed before entering the temporary packaging material storage area of ​​the production workshop. After further dust removal in the air shower, they must enter the can sorting room and be sterilized in a dedicated deionizing dust collector and sterilizer before use. The bottom caps must be sterilized in a dedicated sterilization tunnel before entering the inner packaging room and being sterilized again in the packaging material sterilization room before use.

[0060] 2. Parameters: Packaging materials need to be ozone sterilized for 30-45 minutes in the temporary storage room.

[0061] 3. Incomplete sterilization in this process can result in excessive levels of bacteria and pathogens, shortening shelf life. These levels cannot be eliminated in subsequent processes, so this is designated as a critical control point. Key control measures: Regularly test ozone concentration and sterilization time to ensure effective sterilization.

[0062] 9. Warehouse inspection and delivery

[0063] 1. Palletized finished products are stored in the finished product warehouse, placed off the ground and against walls, and properly labeled. Products that pass inspection and are approved by the quality authorized person are shipped out of the factory. Unqualified products are handled according to the "Unqualified Output Control Procedure."

[0064] 2. In this process, no significant hazards will occur as long as the "Warehouse Management and Transportation Management Regulations" of the prerequisite plan are strictly implemented. However, it is still necessary to properly manage the storage and transportation of products to ensure that product quality is not affected during storage and transportation.

[0065] Example 2

[0066] This embodiment provides a sheep colostrum immunoglobulin powder, comprising the following components by weight: 250 kg of sheep colostrum powder, 400 kg of whole milk powder, 370 kg of skim milk powder, 25 kg of fructooligosaccharides, 25 kg of isomaltooligosaccharides, 12 kg of acerola cherry powder, 1.2 kg of lactoferrin, 0.6 kg of N-acetylneuraminic acid, 0.25 kg of Bifidobacterium, and 0.25 kg of Lactobacillus. The fructooligosaccharides are in powdered form, and the Bifidobacterium is Bifidobacterium animalis subsp. lactis CETS 8145 and Bifidobacterium longum subsp. longum CETS 7347 in a 1:1 weight ratio. When raw sheep colostrum non-fat milk solids are used, the dry weight is converted to 20.0%.

[0067] The process for preparing sheep colostrum immunoglobulin powder in this embodiment is the same as that in Example 1, except that: the stirring speed during dissolution and recovery in this embodiment is 500 r / min and the stirring time is 20 min; the speed of the centrifuge in the separation and degreasing process is controlled at 6000 r / min, the separation time is 15 min, and the emulsion temperature is controlled at 45°C; the conditions for sterilizing the defatted sheep colostrum emulsion are 70°C and 15 s; when concentrating and drying the defatted sheep colostrum emulsion, the defatted sheep colostrum emulsion temperature is 50°C, the effective body temperature is 70°C, the steam pressure is 1.0 MPa, and the discharge concentration is controlled at 30% dry matter; the concentrated defatted sheep colostrum is sublimed at a temperature of minus 87°C in a cold dryer under a vacuum degree of 0.007 mbar and dried at 60°C to remove most of the moisture to form a dry and uniform crystalline defatted sheep colostrum product (semi-finished product); in the dry mixing process, premixing is first performed and then dry mixing is performed, the premixing time is 8 min, and the dry mixing and stirring is 50 min.

[0068] Example 3

[0069] This embodiment provides a sheep colostrum immunoglobulin powder, comprising the following components by weight: 200 kg of raw sheep colostrum powder, 350 kg of whole milk powder, 330 kg of skim milk powder, 15 kg of fructooligosaccharides, 15 kg of isomaltooligosaccharides, 8 kg of acerola cherry powder, 0.8 kg of lactoferrin, 0.4 kg of N-acetylneuraminic acid, 0.15 kg of Bifidobacterium, and 0.15 kg of Lactobacillus. The fructooligosaccharides are in powdered form, and the Bifidobacterium are Bifidobacterium animalis subsp. lactis CETS 8145 and Bifidobacterium longum subsp. longum CETS 7347 in a 1:1 weight ratio. When raw sheep colostrum non-fat milk solids are selected, the dry weight is converted to 20.0%. The process for preparing the sheep colostrum immunoglobulin powder in this embodiment is the same as that in Example 1.

[0070] The process for preparing sheep colostrum immunoglobulin powder in this embodiment is the same as that in Example 1, except that: the stirring speed during dissolution and recovery in this embodiment is 400 r / min and the stirring time is 18 min; the speed of the centrifuge in the separation and degreasing process is controlled at 5500 r / min, the separation time is 12 min, and the emulsion temperature is controlled at 42°C; the conditions for sterilizing the defatted sheep colostrum emulsion are 65°C and 15 s; when concentrating and drying the defatted sheep colostrum emulsion, the defatted sheep colostrum emulsion temperature is 45°C, the effective body temperature is 65°C, the steam pressure is 0.9 MPa, and the discharge concentration is controlled at 28% dry matter; the concentrated defatted sheep colostrum is sublimed at a temperature of minus 85°C in a cold dryer under a vacuum degree of 0.005 mbar and dried at 55°C to remove most of the moisture to form a dry and uniform crystalline defatted sheep colostrum product (semi-finished product); in the dry mixing process, premixing is first performed and then dry mixing is performed, the premixing time is 7 min, and the dry mixing and stirring is 48 min.

[0071] Comparative Example 1

[0072] It is made only from sheep colostrum powder as the main raw material and is made through simple processing. No prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, or probiotic ingredients are added.

[0073] Preparation process: The sheep colostrum powder is directly sterilized at high temperature (121°C, 15s) and then spray-dried into powder.

[0074] Comparative Example 2

[0075] It contains sheep colostrum powder, whole milk powder and skimmed milk powder, but the prebiotics use single oligofructose, and no acerola cherry powder, lactoferrin, N-acetylneuraminic acid or probiotic ingredients are added.

[0076] Preparation process: After mixing all the raw materials, use high temperature and long time sterilization (80℃, 30min), and then dry.

[0077] The protein powders prepared in Examples 1-3 and Comparative Examples 1 and 2 were subjected to the following test:

[0078] 100 healthy mice were selected and randomly divided into 5 groups, namely Example 1 group, Example 2 group, Example 3 group, Comparative Example 1 group and Comparative Example 2 group, with 20 mice in each group.

[0079] Feeding method: The protein powder of each experimental group was added to the basic feed of mice in the same proportion and fed continuously for 4 weeks. The immune indexes, intestinal flora and growth indexes were tested respectively. Each experimental group contained 20 mice, and the data were averaged during the test.

[0080] (1) Immune indicators: At the end of the fourth week, blood was collected from mice and the levels of immunoglobulins IgG, IgA, and IgM in the serum were detected. The results are shown in Table 1.

[0081] (2) Intestinal flora: Feces of mice were collected and the number of beneficial bacteria such as bifidobacteria and lactic acid bacteria in the intestine was analyzed. The results are shown in Table 2.

[0082] (3) Growth indicators: The mice were weighed weekly and the weight growth rate was calculated. The results are shown in Table 3.

[0083] Table 1 Immune index data

[0084] Group IgG (mg / L) IgA (mg / L) IgM (mg / L) Example 1 150 80 60 Example 2 160 85 65 Example 3 145 78 58 Comparative Example 1 90 40 30 Comparative Example 2 100 45 35

[0085] Table 2 Intestinal flora data

[0086] Group <![CDATA[Bifidobacterium quantity (×10 6 CFU / g)]]> <![CDATA[Number of lactic acid bacteria (×10 6 CFU / g)]]> Example 1 12 15 Example 2 13 16 Example 3 11 14 Comparative Example 1 5 6 Comparative Example 2 6 7

[0087] Table 3 Growth index data

[0088] Group Weight gain rate (%) Example 1 18 Example 2 20 Example 3 17 Comparative Example 1 10 Comparative Example 2 12

[0089] From the above data, it can be seen that the groups of Examples 1, 2, and 3 are superior to the groups of Comparative Example 1 and Comparative Example 2 in terms of immune indicators, intestinal flora, and growth indicators, indicating that the sheep colostrum immunoglobulin powder of the present invention has obvious advantages in nutritional components and preparation process, and can better enhance the body's immunity, regulate intestinal flora, and promote growth and development.

[0090] The above embodiment is only one of the preferred implementation methods of the present invention and should not be used to limit the scope of protection of the present invention. Any changes or modifications that have no substantive meaning made to the main design concept and spirit of the present invention, as long as the technical problems solved are still consistent with the present invention, should be included in the scope of protection of the present invention.

Claims

1. A sheep colostrum immunoglobulin powder, characterized in that: The invention comprises the following components by weight: 200-250 parts of sheep colostrum raw material, 350-400 parts of whole milk powder, 330-370 parts of skim milk powder, 30-50 parts of prebiotics, 8-12 parts of acerola cherry powder, 0.8-1.2 parts of lactoferrin, 0.4-0.6 parts of N-acetylneuraminic acid and 0.3-0.5 parts of probiotics.

2. The sheep colostrum immunoglobulin powder according to claim 1, characterized in that The sheep colostrum raw material is selected from raw sheep colostrum powder, sheep colostrum powder or a combination thereof.

3. The sheep colostrum immunoglobulin powder according to claim 2, characterized in that: The prebiotics include oligofructose and oligoisomaltose in a mass ratio of 1:1, wherein the oligofructose is in powder form.

4. The sheep colostrum immunoglobulin powder according to claim 3, characterized in that: The probiotics include Bifidobacterium and Lactobacillus in a mass ratio of 1:

1.

5. The sheep colostrum immunoglobulin powder according to claim 4, characterized in that: The Bifidobacterium genus is one of Bifidobacterium animalis subspecies lactis cect8145, Bifidobacterium longum subspecies longum cect7347 or a combination thereof.

6. A process for preparing the sheep colostrum immunoglobulin powder according to claim 5, characterized in that: include: S1, weighing the sheep colostrum powder raw material, adding it to sterilized water, stirring and dissolving it, to obtain the sheep colostrum emulsion; S2, defatting the sheep colostrum emulsion to control the fat content in the emulsion to 0.5-1%; during this process, the temperature of the sheep colostrum emulsion is controlled at 40-45° C.; S3, sterilization of defatted sheep colostrum emulsion; S4, concentrating and freeze-drying the sterilized defatted sheep colostrum to obtain crystalline defatted sheep colostrum; S5, dry-mixing the crystalline skimmed sheep colostrum with prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, probiotics, whole milk powder, and skimmed milk powder; S6, packaging and inspecting the dry-mixed mixture, and then storing it in a warehouse to obtain sheep colostrum immunoglobulin powder.

7. The process for preparing sheep colostrum immunoglobulin powder according to claim 6, characterized in that: In step S2, degreasing is performed by a continuous centrifuge, the rotation speed of the centrifuge is 5000-6000 r / min, and the centrifugation time is 10-15 minutes.

8. The process for preparing sheep colostrum immunoglobulin powder according to claim 7, characterized in that: In step S4, a single-effect rising film evaporator is used to concentrate the sterilized defatted sheep colostrum emulsion. During the concentration process, the temperature of the defatted sheep colostrum emulsion is controlled at 40-50°C, the effect body temperature is 60-70°C, the steam pressure is 0.8-1.0 MPa, and the discharge concentration is controlled at 25-30% of dry matter.

9. The process for preparing sheep colostrum immunoglobulin powder according to claim 8, characterized in that: In step S4, the concentrated defatted goat colostrum is freeze-dried in a cold dryer at a vacuum degree of 0.003-0.007 mbar.

10. The process for preparing sheep colostrum immunoglobulin powder according to claim 9, characterized in that: In step S5, part of the crystalline skimmed sheep colostrum is premixed with prebiotics, acerola cherry powder, lactoferrin, N-acetylneuraminic acid, and probiotics, and the remaining crystalline skimmed sheep colostrum is dry-mixed with whole milk powder and skimmed milk powder.

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