Universal functional formula milk powder for cats and dogs and preparation method of universal functional formula milk powder

Abstract

The invention provides universal functional formula milk powder for cats and dogs and a preparation method thereof, and relates to the field of pet formula food. The formula milk powder consists of goat milk powder, colostrum powder, whey protein powder, lactoferrin powder, yolk powder, immune globulin powder, compound grease, compound minerals, compound vitamins, choline, taurine, compound prebiotics, compound probiotics, docosahexaenoic acid, arachidonic acid, casein phosphopeptides, L-glutamine and beta-galactosidase. And the goat milk powder, colostrum powder, whey protein powder, lactoferrin powder, yolk powder and immune globulin powder are subjected to low-temperature sterilization treatment by adopting an induced electric field or high-pressure microjet. The cat and dog formula milk powder overcomes the defects in the prior art, through compounding of basic nutritional ingredients and functional ingredients, a novel low-temperature sterilization technology is adopted for sterilization treatment, on the premise that the functionality of the formula milk powder is guaranteed, the nutritional value of the formula milk powder is reserved to a greater extent, and healthy growth and development of cats and dogs are promoted.

Description

Technical Field

[0001] The invention relates to the field of pet formula food, and in particular to a functional formula milk powder universal for cats and dogs and a preparation method thereof. Background Art

[0002] With the aging of the population and the increase in the number of people who do not marry or have children, pet cats and dogs have become the spiritual sustenance of more and more people. The health of cats and dogs is one of the most concerned issues for pet lovers. In the daily upbringing of cats and dogs, they should be provided with relatively comprehensive pet food, but long-term feeding of processed food such as pet food will burden the gastrointestinal tract of kittens. The quality of pet formula milk powder currently sold on the market, whether domestic or foreign brands, varies. Many products have potential serious problems, such as insufficient calcium, insufficient calcium-phosphorus ratio, low calorie density, improper feeding guidance and excessive lactose concentration, all of which may reduce the growth status and survival ability of kittens. In addition, because cats and dogs lack lactase to break down lactose in their bodies, they are prone to diarrhea, vomiting and other symptoms when directly fed with dairy products or human milk powder. They may also have problems such as low immunity and insufficient hair. Therefore, based on the physiological characteristics and growth and development needs of cats and dogs, and on the premise of meeting their basic nutrients such as protein, fat, carbohydrates, vitamins, minerals, trace elements, etc., adding functional ingredients that aid digestion, strengthen hair, and enhance immunity to formula milk can more comprehensively ensure the health of pet cats and dogs.

[0003] At present, most pet formula milk powders on the market are produced by dry process, but the milk powder, protein powder, lactoferrin powder, etc. used are mostly processed by traditional heat sterilization methods, which can easily lead to denaturation and loss of heat-sensitive and functional proteins, reducing the nutritional value of milk powder. The use of new low-temperature sterilization technologies such as induction electric field technology and high-voltage microfluidics technology to sterilize raw milk and protein solutions can effectively kill harmful microorganisms and retain the activity of heat-sensitive nutritional protein components. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a functional formula milk powder universal for cats and dogs and a preparation method thereof. By compounding basic nutritional ingredients and functional ingredients and adopting a new low-temperature sterilization technology for sterilization, the nutritional value of the formula milk powder is retained to a greater extent while ensuring its functionality, thereby promoting the healthy growth and development of cats and dogs.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented through the following technical solutions:

[0006] A functional formula milk powder universal for cats and dogs, the formula milk powder consists of the following materials in parts by weight: 40-70 parts of goat milk powder, 0.2-5 parts of colostrum powder, 15-55 parts of whey protein powder, 0.5-20 parts of lactoferrin powder, 2-10 parts of egg yolk powder, 0.5-20 parts of immunoglobulin powder, 22-42 parts of compound oils and fats, 2-7 parts of compound minerals, 0.1-0.4 parts of compound vitamins, 0.2-1.2 parts of choline, 0.2-1.2 parts of taurine, 0.1-0.5 parts of compound prebiotics, 0.01-0.1 parts of compound probiotics, 0.01-0.5 parts of docosahexaenoic acid, 0.01-0.5 parts of arachidonic acid, 0.01-0.5 parts of casein phosphopeptide, 0.01-0.5 parts of L-glutamine and 0.02-0.5 parts of beta-galactosidase.

[0007] Preferably, the goat milk powder is a mixture of one or both of whole goat milk powder and skimmed goat milk powder, and the goat milk used to make the goat milk powder can be one or both of goat milk and sheep milk; the colostrum powder is a mixture of one or both of goat colostrum and bovine colostrum powder; the whey protein powder is one or more of isolated whey protein powder, concentrated whey protein powder and desalted whey protein powder of bovine or sheep; the egg yolk powder is one or more of chicken egg yolk powder, duck egg yolk powder and goose egg yolk powder.

[0008] Preferably, the goat milk powder, colostrum powder, whey protein powder and egg yolk powder are processed by the following process:

[0009] (1) The liquid raw material is heated to 50°C and homogenized by a homogenizer at 10-20 MPa to obtain a homogenous liquid.

[0010] (2) sterilizing the homogenized liquid at low temperature by using an induction electric field or a high-voltage microjet to obtain a sterilized solution for use;

[0011] (3) Concentrating the sterilized solution at 45-55° C. using a vacuum concentrator to a dry matter content of 40%-48% to obtain a concentrated material for later use;

[0012] (4) The concentrated material is spray-dried using a low-temperature spray drying tower, and then evenly mixed with compound probiotics and β-galactosidase to obtain formula milk powder.

[0013] Preferably, the method for preparing goat milk powder, colostrum powder, whey protein powder and egg yolk powder is characterized in that: the method of using an induced electric field for low-temperature sterilization in step (2) is to use a composite electromagnetic field for treatment, and the composite electromagnetic field includes a superimposed alternating electric field and a rotating magnetic field. The process of low-temperature sterilization is to pass the homogenized liquid through the composite electromagnetic field in liquid form, and the excitation voltage provided by the excitation power supply is 400V-900V, the frequency is 50kHz, the injection speed is 4-20L / h, and the sample temperature after sterilization is lower than 60°C.

[0014] Preferably, the method for preparing goat milk powder, colostrum powder, whey protein powder and egg yolk powder is characterized in that: in the step (2), the low-temperature sterilization treatment using high-pressure microjet is performed by controlling the pressure to 10000-40000psi and the time to 20-60min.

[0015] Preferably, the compound lipid is characterized in that: the wall material is dissolved in water and then oil is added to the mixture, ultrasonically homogenized and dispersed, and then fluidized bed or spray dried. The compound oil is obtained by mixing medium-chain triglycerides, lecithin, cod liver oil and vegetable oil, and the vegetable oil is one or more of linseed oil, sunflower seed oil, rapeseed oil, soybean oil, corn oil, coconut oil and palm oil; the wall material is one or more of starch, maltodextrin, concentrated whey protein powder or desalted whey powder.

[0016] Preferably, the compound vitamins added to each 100g of functional formula milk powder contain 50-300IU of vitamin A, 10-80IU of vitamin D, 1-10IU of vitamin E, 100-400μg of vitamin K, 200-800μg of vitamin B1, 50-430μg of vitamin B2, 150-600μg of vitamin B6, and 100-200μg of vitamin B6. 12 1-20μg, niacin 15000-5500μg, folic acid 20-150μg, biotin 1-15μg.

[0017] Preferably, the complex minerals added to every 100g of functional formula milk powder contain 10-40mg sodium, 10-60mg potassium, 400-1300mg copper, 10-60mg magnesium, 5-25mg iron, 5-28mg zinc, 200-1000μg manganese, 300-1000mg calcium, 100-600mg phosphorus, 40-300μg iodine, and 10-60μg selenium.

[0018] Preferably, the compound prebiotics are one or more of fructooligosaccharides, inulin, xylooligosaccharides, isomaltooligosaccharides, yucca extract, astragalus polysaccharides, ganoderma lucidum polysaccharides, and Agaricus bisporus polysaccharides.

[0019] Preferably, the compound probiotics include one or more of Bifidobacterium, Lactobacillus plantarum, Lactobacillus acidophilus, Saccharomyces boulardii, Lactobacillus casei, and Lactobacillus Raman.

[0020] Preferably, all raw materials are fully mixed and then sterilized by irradiation at a dose of 5-100 kGy, and then packaged to obtain a functional formula milk powder for cats and dogs.

[0021] The present invention provides a functional formula milk powder universal for cats and dogs and a preparation method thereof. Compared with the prior art, the advantages are:

[0022] The invention adopts low-temperature sterilization technology to produce milk powder, wherein new low-temperature sterilization technologies such as induction electric field and high-voltage micro-jet have the advantages of good sterilization effect, low processing temperature and the like, can effectively reduce the loss of nutrients in the milk powder processing process, and is helpful to improve the quality of cat and dog formula milk powder; and the invention adds a variety of basic nutrients and functional ingredients to the milk powder, wherein probiotics, prebiotics and beta-galactosidase are added to promote digestion, then colostrum powder, lactoferrin and immunoglobulin are added to improve immunity, medium-chain triglycerides and egg yolk powder, cod liver oil and lecithin are added to strengthen hair and brighten hair, and all the ingredients are combined to comprehensively promote the healthy growth and development of cats and dogs on the basis of effectively improving the nutritional richness of the milk powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a particle size distribution diagram of different sterilized milk in the embodiments of the present invention;

[0024] Figure 2 CLSM images of milk fat globules (AD: RM, PM, UM and IM) and milk protein globules (EH: RM, PM, UM and IM) in different sterilized milks according to the embodiments of the present invention, wherein the red area represents the fat globules and the green area represents the proteins;

[0025] Figure 3 The SDS-PAGE electrophoresis patterns of different sterilized milks in the examples of the present invention are shown in FIG. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention is clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] Preparation of a functional formula milk powder universal for cats and dogs:

[0029] (1) heating goat milk, goat colostrum, goat whey protein isolate, lactoferrin, immunoglobulin and egg yolk liquid to 50° C., and homogenizing them at 10-20 MPa using a homogenizer; passing the mixture in liquid form through an alternating magnetic field (superimposed alternating electric field and rotating magnetic field), wherein the excitation voltage provided by the excitation power supply is 800 V, the frequency is 50 kHz, and the injection speed is 8 L / h, thereby obtaining sterilized milk;

[0030] (2) concentrating the sterilized milk at about 45-55° C. using a vacuum concentrator to a dry matter content of 48%; and spray drying the resulting powder using a low-temperature spray drying tower;

[0031] (3) Prepare the following raw materials in the following amounts: 42 parts of goat milk powder, 0.2 g of goat colostrum powder, 14.5 g of goat isolated whey protein powder, 0.5 g of lactoferrin powder, 0.5 g of immunoglobulin powder, 4.5 g of egg yolk powder, 30 g of compound oil, 3.5 g of compound minerals, 0.5 g of compound vitamins, 0.3 g of choline, 0.4 g of taurine, 0.35 g of compound prebiotics, 0.35 g of compound probiotics, 0.06 g of docosahexaenoic acid (DHA), 0.08 g of arachidonic acid (ARA), 0.05 g of casein phosphopeptide, 0.06 g of L-glutamine, and 0.2 g of β-galactosidase;

[0032] The compound oil contains 15g of medium-chain triglyceride, 3g of lecithin, 2g of cod liver oil, 5g of linseed oil and 5g of sunflower oil. The concentrated sheep whey protein powder is dissolved in water, and then the oil is added to the mixture and ultrasonically homogenized and dispersed, and then the powder is prepared by fluidized bed and spray drying.

[0033] Compound vitamins, added to every 100g of formula milk powder, contain vitamin A 100IU, vitamin D 20IU, vitamin E2.5IU, vitamin K 230μg, vitamin B1340μg, vitamin B280μg, vitamin B6320μg, vitamin B 12 12μg, niacin 2000μg, folic acid 60μg, biotin 10μg;

[0034] Complex minerals added to every 100g of formula milk powder contain 15mg of sodium, 23mg of potassium, 500mg of copper, 50mg of magnesium, 13mg of iron, 21mg of zinc, 320μg of manganese, 550mg of calcium, 120mg of phosphorus, 80μg of iodine, and 33μg of selenium.

[0035] The compound prebiotics include 0.1g fructooligosaccharide, 0.1g isomaltooligosaccharide and 0.15g xylo-oligosaccharide.

[0036] The compound probiotics include 0.1g of Bifidobacterium, 0.1g of Lactobacillus plantarum, 0.1g of Lactobacillus acidophilus, and 0.05g of Lactobacillus casei;

[0037] (5) After all the raw materials are fully mixed, they are irradiated and sterilized at a dose of 50 kGy, and packaged to obtain a functional formula milk powder for cats and dogs.

[0038] Embodiment 2:

[0039] Preparation of a functional formula milk powder universal for cats and dogs:

[0040] Wherein steps (1)-(2) and step (4) are the same as those in Example 1, and the specific operation of step (2) is as follows:

[0041] The raw milk was treated with high pressure microfluidization, the pressure was controlled at 30000psi, the time was 40min, and sterilized milk was obtained.

[0042] Detection:

[0043] To test the sterilization effect of the alternating magnetic field and high-pressure microfluidics treatment in the above-mentioned Example 1-2, the following operations were performed using fresh milk as sample milk:

[0044] The above sample milks were sterilized by the following sterilization methods to obtain different sterilized milks:

[0045] ① Sample milk (RM): not sterilized;

[0046] ②Pasteurized milk (PM): The sample milk was treated by pasteurization (raw milk was heated to 65°C and kept warm for 30 min);

[0047] ③Ultra-high temperature instant sterilized milk (UM): The sample milk was treated with ultra-high temperature instant sterilization (140°C, 10s);

[0048] ④ Induction electric field sterilization milk (IM): The sample milk passes through an alternating magnetic field (superimposed alternating electric field and rotating magnetic field) in liquid form. The excitation voltage provided by the excitation power supply is 800V, the frequency is 50kHz, the injection speed is 8L / h, and the sample temperature after sterilization is 55°C;

[0049] ⑤ High-pressure microfluidization sterilized milk (HM): The sample milk was treated with high-pressure microfluidization, with the pressure controlled at 30,000 psi and the time being 40 min.

[0050] 1. The sterilization effects of the above-mentioned sterilized milk groups were tested. The specific results are shown in Table 1 below:

[0051] Table 1

[0052]

[0053]

[0054] As shown in Table 1, it can be observed that the total colony counts, the numbers of Staphylococcus aureus, Salmonella, and Escherichia coli in PM, UM, IM, and HM are almost 0, which are significantly lower than those in RM. This indicates that low-temperature sterilization technologies such as induction electric field sterilization and high-pressure microfluidization sterilization can achieve the same sterilization effect as traditional heat treatment methods.

[0055] 2. Detect the particle size distribution of each group of sterilized milk. See Figure 1 , where HM showed the smallest particle size compared to the other groups; PM had the highest particle size peak intensity in the particle size range of 1-10 μm, followed by RM, UM, and IM. For particle sizes greater than 20 μm, the particle size peak intensity of IM was significantly greater than that of UM, RM, and PM samples. In addition, UM showed a larger particle size than RM and PM.

[0056] 3. Detect the distribution of milk fat globules and milk protein globules in each group of sterilized milk. For specific results, refer to Figure 2 ,in Figure 2 AD are CLSM images of milk fat globules in RM, PM, UM and IM, respectively. Figure 2 EH are CLSM images of milk protein globules in RM, PM, UM, and IM, respectively;

[0057] There are significant differences in the CLSM images of milk samples treated with different sterilization methods. Due to the high pressure, the particles in HM are almost unobservable in the CLSM images, so the results are not presented here. The fat globule size in PM and UM increased significantly, while the PM sample showed some larger protein particles, but most of the protein particles were smaller and more densely arranged. The UM sample had larger protein particles but were more loosely distributed. Irregular shapes of fat globules were observed in the UM sample. The IM sample had larger protein particles but smaller fat globules, which were more dispersed compared to UM and PM. The fat globule particles in PM and UM were larger, and the fat globules in the IM sample were finer and more dispersed.

[0058] 4. Electrophoresis treatment was performed on each group of sterilized milk. The specific results are shown in Figure 3 β-lactoglobulin (β-Lg), casein and bovine serum albumin (BSA) are the main components of whey protein. There is no significant difference in the bands corresponding to the main proteins in the samples, indicating that different sterilization methods have no significant effect on the content of these proteins in milk. For the bands corresponding to lactoferrin with a molecular weight range of 70-180 kDa, the bands in the UM sample are not as obvious as those in other samples, while the lactoferrin bands in the IM sample have no significant changes compared with the raw milk.

[0059] In summary, IM and HM have better quality while ensuring good sterilization effect.

[0060] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A functional formula milk powder universal for cats and dogs, characterized by: The formula milk powder is composed of the following materials in parts by weight: 40-70 parts of goat milk powder, 0.2-5 parts of colostrum powder, 15-55 parts of whey protein powder, 0.5-20 parts of lactoferrin powder, 2-10 parts of egg yolk powder, 0.5-20 parts of immunoglobulin powder, 22-42 parts of compound oils and fats, 2-7 parts of compound minerals, 0.1-0.4 parts of compound vitamins, 0.2-1.2 parts of choline, 0.2-1.2 parts of taurine, 0.1-0.5 parts of compound prebiotics, 0.01-0.1 parts of compound probiotics, 0.01-0.5 parts of docosahexaenoic acid, 0.01-0.5 parts of arachidonic acid, 0.01-0.5 parts of casein phosphopeptide, 0.01-0.5 parts of L-glutamine, and 0.02-0.5 parts of beta-galactosidase.

2. The formula milk powder according to claim 1, characterized in that: The goat milk powder is one or a mixture of whole goat milk powder and skimmed goat milk powder, and the goat milk used to make the goat milk powder can be one or both of goat milk and sheep milk; the colostrum powder is one or a mixture of goat colostrum or bovine colostrum powder; the whey protein powder is one or more of isolated whey protein powder, concentrated whey protein powder and desalted whey protein powder from cow or sheep; the egg yolk powder is one or more of chicken egg yolk powder, duck egg yolk powder and goose egg yolk powder.

3. The goat milk powder, colostrum powder, whey protein powder and egg yolk powder according to claim 2 are processed by the following process: (1) The liquid raw material is heated to 50°C and homogenized by a homogenizer at 10-20 MPa to obtain a homogenous liquid. (2) sterilizing the homogenized liquid at low temperature by using an induction electric field or a high-voltage microjet to obtain a sterilized solution for use; (3) Concentrating the sterilized solution at 45-55° C. using a vacuum concentrator to a dry matter content of 40%-48% to obtain a concentrated material for later use; (4) The concentrated material is spray-dried using a low-temperature spray drying tower, and then evenly mixed with compound probiotics and β-galactosidase to obtain formula milk powder.

4. The preparation method according to claim 3, characterized in that: The method of using an induced electric field for low-temperature sterilization in step (2) is to use a composite electromagnetic field for treatment, and the composite electromagnetic field includes a superimposed alternating electric field and a rotating magnetic field. The process of low-temperature sterilization is to pass the homogenized liquid through the composite electromagnetic field in liquid form, and the excitation voltage provided by the excitation power supply is 400V-900V, the frequency is 50kHz, the injection speed is 4-20L / h, and the sample temperature after sterilization is lower than 60°C; and the method of using high-pressure microfluidics for low-temperature sterilization is to control the pressure to 10000-40000psi and the time to 20-60min.

5. The formula milk powder according to claim 1, characterized in that: The wall material is dissolved in water, and then oil is added to the mixture, ultrasonically homogenized and dispersed, and then fluidized bed or spray dried to obtain the product. The compound oil is obtained by mixing medium-chain triglycerides, lecithin, cod liver oil and vegetable oil, and the vegetable oil is one or more of linseed oil, sunflower seed oil, rapeseed oil, soybean oil, corn oil, coconut oil and palm oil; the wall material is one or more of starch, maltodextrin, concentrated whey protein powder or desalted whey powder.

6. The formula milk powder according to claim 1, characterized in that: The compound vitamins added to each 100g of functional formula milk powder contain 50-300 IU of vitamin A, 10-80 IU of vitamin D, 1-10 IU of vitamin E, 100-400 μg of vitamin K, 200-800 μg of vitamin B1, 50-430 μg of vitamin B2, 150-600 μg of vitamin B6, and 100-200 μg of vitamin B6. 12 1-20μg, niacin 15000-5500μg, folic acid 20-150μg, biotin 1-15μg.

7. The formula milk powder according to claim 1, characterized in that: The compound minerals added to every 100g of functional formula milk powder contain 10-40mg sodium, 10-60mg potassium, 400-1300mg copper, 10-60mg magnesium, 5-25mg iron, 5-28mg zinc, 200-1000μg manganese, 300-1000mg calcium, 100-600mg phosphorus, 40-300μg iodine and 10-60μg selenium.

8. The formula milk powder according to claim 1, characterized in that: The compound prebiotics are one or more of fructooligosaccharides, inulin, xylooligosaccharides, isomaltooligosaccharides, yucca extract, astragalus polysaccharides, ganoderma lucidum polysaccharides, and Agaricus bisporus polysaccharides.

9. The formula milk powder according to claim 1, characterized in that: The compound probiotics include one or more of bifidobacterium, lactobacillus plantarum, lactobacillus acidophilus, saccharomyces boulardii, lactobacillus casei and lactobacillus ramanensis.

10. The formula milk powder according to claim 1, characterized in that: The processing technology comprises the following steps: fully mixing all the raw materials, sterilizing them by irradiation at a dosage of 5-100 kGy, and packaging them to obtain functional formula milk powder for cats and dogs.

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