A pet nutritional supplement granule and its preparation method

Abstract

This disclosure relates to the field of pet food technology, and more particularly to a pet nutritional supplement granule and its preparation method. Addressing the issues of low utilization rate of Antarctic krill oil and allergies in some pets, this disclosure adds DHA algal oil and pumpkin seed oil. The synergistic effect of these two ingredients not only improves the utilization rate of Antarctic krill oil but also effectively alleviates diarrhea, skin itching, erythema, and ear infections caused by allergies. Furthermore, the nutrient layer reduces pets' aversion to Antarctic krill oil. This disclosure also addresses pets' resistance to vitamin supplements by adding flavor-masking microspheres (made from overly strong-tasting vitamin ingredients) to the nutrient layer. By adjusting the formula of the flavor-masking microspheres, palatability is improved without adding an additional flavor layer, while also achieving a slow-release function to alleviate gastrointestinal stress in pets.

Description

Technical Field

[0001] This disclosure relates to the field of pet food technology, and in particular to a pet nutritional supplement granule and its preparation method. Background Technology

[0002] Antarctic krill oil is a natural oil extracted from Antarctic krill, rich in various nutrients beneficial to pet health. Its high omega-3 fatty acids, especially EPA and DHA, possess powerful anti-inflammatory properties, effectively reducing joint inflammation and relieving pain and swelling caused by arthritis and other diseases. Its lubricating properties can also effectively prevent joint diseases in active or older pets. However, existing Antarctic krill oil supplements for pets are usually available in softgels, capsules, or pellets, which have poor palatability for pets. Furthermore, there are issues such as low bioavailability of the krill oil and allergic reactions in some pets, including loose stools, itchy skin, erythema, and ear infections.

[0003] Furthermore, the aforementioned Antarctic krill oil products have a limited nutritional profile. If additional nutrients such as calcium, iron, and zinc are required, they must be fed separately.

[0004] Therefore, how to provide a palatable product that can simultaneously supplement Antarctic krill oil and other nutrients, improve the utilization rate of Antarctic krill oil, enhance pet palatability, and alleviate allergic reactions has become an urgent problem to be solved. Summary of the Invention

[0005] To address the aforementioned technical problems, this disclosure provides a pet nutritional supplement granule and its preparation method.

[0006] In a first aspect, this disclosure provides a pet nutritional supplement granule, including a bursting bead core material and a nutrient layer coated on the surface of the bursting bead core material;

[0007] The bursting bead core material includes a wall material and a core liquid encapsulated inside the wall material;

[0008] By weight, the core fluid comprises 75-85 parts of Antarctic krill oil, 15-25 parts of DHA algal oil, and 5-10 parts of pumpkin seed oil.

[0009] The nutrient layer comprises flavor-masking microspheres, which include a core and a coating layer covering the surface of the core.

[0010] The core of the pellet contains vitamins;

[0011] The coating layer comprises a first animal-derived meat, amino acids, salt, sodium alginate, polyethylene glycol, hydroxypropyl methylcellulose, and zein.

[0012] The weight percentages of Antarctic krill oil may be 75, 77, 80, 82, or 85 parts; the weight percentages of DHA algal oil may be 15, 17, 20, 23, or 25 parts; and the weight percentages of pumpkin seed oil may be 5, 6, 7, 8, 9, or 10 parts, but these are not limited to the listed values. Other unlisted values ​​within the above ranges are also applicable.

[0013] On the one hand, this disclosure addresses the problems of low utilization rate of Antarctic krill oil and allergies in some pets caused by existing technologies. By adding DHA algal oil and pumpkin seed oil, the synergistic effect of these two ingredients not only improves the utilization rate of Antarctic krill oil but also effectively alleviates diarrhea, skin itching, erythema, and ear infections caused by allergies. At the same time, the nutrient layer reduces pets' resistance to Antarctic krill oil. On the other hand, this disclosure also addresses the issue of pets' resistance to vitamin supplements by adding taste-masking microspheres made from vitamin raw materials with strong flavors to the nutrient layer. Furthermore, by adjusting the formula of the taste-masking microspheres, palatability can be improved without adding an additional flavor layer, while also achieving a slow-release function to relieve gastrointestinal stress in pets.

[0014] In this disclosure, the amount of pumpkin seed oil added should not be too high. Excessive addition not only has limited effect on improving the utilization rate of Antarctic krill oil, but also increases the risk of pet allergies.

[0015] The following are preferred technical solutions of this disclosure, but are not intended to limit the technical solutions provided by this disclosure. The technical objectives and beneficial effects of this disclosure can be better achieved through the following technical solutions.

[0016] As a preferred technical solution of this disclosure, in the bursting bead core material, the mass ratio of the wall material to the core liquid is (0.3-0.4):1.

[0017] As a preferred technical solution of this disclosure, the diameter of the bursting bead core material is 5-6mm, such as 5mm, 5.2mm, 5.4mm, 5.6mm, 5.8mm or 6mm, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0018] The wall material comprises glycerin, sorbitol, and edible gum.

[0019] Preferably, the mass ratio of glycerol, sorbitol and edible gum is (80-100):(20-40):(2800-3200), such as 90:30:300, 80:20:2800, 100:40:3200 or 95:35:2900, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0020] Preferably, the wall material also includes a colorant.

[0021] The colorant is a food-grade pigment, which can be added as needed.

[0022] Preferably, the edible gum includes gelatin.

[0023] As a preferred technical solution of this disclosure, the vitamins include one or more of vitamin B1, vitamin B2, vitamin B6, vitamin B12, D-calcium pantothenate, or niacin.

[0024] Preferably, the vitamins also include one or more of vitamin A, vitamin D3, vitamin K, or folic acid.

[0025] In this disclosure, the types of vitamins are not limited to those mentioned above; other vitamins that are beneficial to pets may be added.

[0026] Preferably, the nutrient layer further includes a first excipient, which includes one or more of starch, maltodextrin, or white sugar.

[0027] This disclosure is not limited to the types of vitamins mentioned above; any existing vitamins required by pets can be added as needed. Furthermore, the amount of a second vitamin can be adjusted according to product requirements, which will not be elaborated upon here.

[0028] As a preferred technical solution of this disclosure, the first animal-derived meat includes one or more of chicken, chicken liver, or beef.

[0029] Preferably, the amino acid includes one or more of taurine, proline, lysine, glycine, or glutamic acid.

[0030] As a preferred technical solution of this disclosure, the coating layer comprises, by weight percentage, 60-75 wt% of first animal-derived meat, 10-20 wt% of amino acids, 1-3 wt% of salt, 5-15 wt% of sodium alginate, 1-5 wt% of polyethylene glycol, 3-7 wt% of hydroxypropyl methylcellulose, and 5-15 wt% of zein, wherein the content of the first animal-derived meat is, for example, 60 wt%, 60-75 wt%, 70 wt%, or 75 wt%; and the content of amino acids is, for example, 10 wt%, 12 wt%, 14 wt%, 16 wt%, or 18 wt%. The content of sodium alginate is 5 wt%, 7 wt%, 10 wt%, 13 wt%, or 15 wt%, etc.; the content of polyethylene glycol is 1 wt%, 2 wt%, 3 wt%, 4 wt%, or 5 wt%, etc.; the content of hydroxypropyl methylcellulose is 3 wt%, 4 wt%, 5 wt%, 6 wt%, or 7 wt%, etc.; the content of zein is 5 wt%, 10 wt%, 12 wt%, or 15 wt%, etc., but is not limited to the values ​​listed. Other unlisted values ​​within the above range also apply.

[0031] As a preferred technical solution of this disclosure, the diameter of the flavor-masking microspheres is 0.9-1.1 mm, such as 0.9 mm, 1.0 mm or 1.1 mm, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0032] Preferably, the thickness of the nutrient layer is 2-3 mm, such as 2 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm or 3 mm, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0033] As a preferred technical solution of this disclosure, the pet nutritional supplement granules further include a flavor layer coating the surface of the nutritional layer.

[0034] Preferably, the flavor layer comprises a second animal-derived meat and a second ingredient.

[0035] Preferably, the second animal-derived meat includes one or more of chicken, beef, or chicken liver.

[0036] Preferably, the second excipient comprises starch and / or maltodextrin.

[0037] Preferably, the thickness of the flavor layer is 2-3 mm, such as 2 mm, 2.2 mm, 2.4 mm, 2.6 mm, 2.8 mm or 3 mm, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0038] Secondly, this disclosure also provides a method for preparing pet nutritional supplement granules as described in the first aspect, the method comprising the following steps:

[0039] (1) Prepare the core liquid and the wall material adhesive liquid. Use microencapsulation technology to make the core liquid and the wall material adhesive liquid form concentric droplets, which are then dropped into the coagulation liquid to form wet pellets. The wet pellets are dried to obtain the popping bead core material.

[0040] (2) Prepare powdered vitamins and use centrifugal granulation to obtain pellet cores; then, coat the obtained pellet cores to obtain flavor-masked micro-pills;

[0041] (3) Prepare the nutrient layer powder and use centrifugal granulation to form a nutrient layer on the surface of the popping bead core material obtained in step (1), and then dry it to obtain pet nutritional supplement granules;

[0042] The nutrient layer powder includes flavor-masking micro-pellets.

[0043] Steps (1) and (2) are not in any particular order.

[0044] The finished product prepared by the method described in this disclosure has a stable structure, good powder encapsulation, and a simple production process, which is conducive to industrial application.

[0045] As a preferred technical solution of this disclosure, the preparation method further includes: after drying in step (3), a flavor layer is formed on the surface of the nutrient layer by centrifugal granulation, and then dried to obtain pet nutritional supplement granules.

[0046] As a preferred technical solution of this disclosure, the drying temperature in step (1) is 25-35°C, such as 25°C, 30°C or 35°C, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0047] Preferably, after drying in step (1), the moisture content of the obtained popping bead core material is below 8 wt%, such as 2 wt%, 4 wt%, 6 wt% or 8 wt%, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0048] Preferably, the drying temperature in step (3) is 60-80°C, such as 60°C, 65°C, 70°C, 75°C or 80°C, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0049] Preferably, after drying in step (3), the moisture content of the obtained pet health food granules is below 8 wt%, such as 2 wt%, 4 wt%, 6 wt% or 8 wt%, but is not limited to the listed values. Other unlisted values ​​within this range are also applicable.

[0050] As a preferred technical solution of this disclosure, the specific operation of step (1) includes:

[0051] S1: Prepare the core fluid

[0052] Mix 75-85 parts by weight of Antarctic krill oil, 15-25 parts by weight of DHA algal oil, and 5-10 parts by weight of pumpkin seed oil at a temperature between 15-35°C.

[0053] S2: Preparation of adhesive for wall materials

[0054] Glycerin, sorbitol, and edible gum are mixed with water at 50-70℃ in a mass ratio of (80-100):(20-40):(2800-3200). After stirring evenly, the mixture is heated to 80-85℃ for 1.5-2.5 hours.

[0055] S3: Add the core liquid and the wall material adhesive liquid to the oil pot and glue pot of the dropper respectively. Set the dripping speed of the dropper to 45-55HZ. The generated concentric droplets (i.e., the wall material adhesive liquid including the core liquid) fall into the coagulation liquid to form wet pellets. Then dry the wet pellets at 25-35℃, and at the same time use oil-absorbing paper to remove the coagulation liquid on the surface of the wet pellets until the moisture content is below 8wt%, and obtain the bursting bead core material.

[0056] The oil temperature is set at 15-30℃, and the glue temperature is set at 70-90℃.

[0057] As a preferred technical solution of this disclosure, the specific operation of step (2) includes:

[0058] Preparation of core: Powdered vitamins are placed in a centrifugal granulator and rolled into balls, and then dried to obtain cores with a moisture content of 8-10 wt%.

[0059] Preparation of coating solution: Dissolve 60-75 wt% of first animal-derived meat powder, 10-20 wt% of amino acids, 1-3 wt% of salt, 5-15 wt% of sodium alginate, 1-5 wt% of polyethylene glycol, 3-7 wt% of hydroxypropyl methylcellulose and 5-15 wt% of corn gluten in water to obtain the coating solution;

[0060] Place the pellet core in a bottom-spray fluidized bed coating machine, turn on the bottom spray atomizer to coat the pellets until you get flavor-masked pellets of the set diameter.

[0061] In this disclosure, the amount of water added to the coating solution can be determined by those skilled in the art based on their experience, as long as it achieves a coating-ready state.

[0062] As a preferred technical solution of this disclosure, the specific operation of step (3) includes:

[0063] Preparation of nutrient layer powder: Mix the flavor-masking micro pellets obtained in step (2) with the first excipient to obtain nutrient layer powder;

[0064] Place the popping bead core material obtained in step (1) into a centrifugal granulator, set the rotation speed to 35-45HZ, spray water to wet the surface of the popping bead core material, spray the nutrient layer powder to roll it into a ball, take it out after it reaches the set diameter, dry it at 60-80℃ until the moisture content is below 8wt%, and obtain the desired pet nutritional supplement granules.

[0065] As a preferred technical solution of this disclosure, in each step of the preparation process, good products that meet the standard size are screened out by a standard sieve.

[0066] As a preferred technical solution of this disclosure, in the process of preparing the bursting bead core material, after the good products that meet the standard size are screened out by a standard sieve, the unqualified products that are irregularly round, leaking, or damaged are then manually screened out.

[0067] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0068] (1) This disclosure addresses the problems of low utilization rate of Antarctic krill oil and allergies in some pets in the prior art. By adding DHA algal oil and pumpkin seed oil, the two work synergistically to not only improve the utilization rate of Antarctic krill oil, but also effectively alleviate diarrhea, skin itching, erythema and ear infection caused by allergies. At the same time, the nutrient layer reduces the pets' resistance to Antarctic krill oil.

[0069] (2) This disclosure also solves the pets’ resistance to vitamin supplements by making flavor-masking microspheres from vitamin raw materials with strong tastes and adding them to the nutrient layer. Furthermore, by adjusting the formula of the flavor-masking microspheres, palatability can be improved without adding a flavor layer. At the same time, a slow-release function is achieved to relieve the pets’ gastrointestinal stress.

[0070] (3) The finished product prepared using this disclosure has a stable structure, good powder encapsulation, and a simple production process, which is conducive to industrial application. Attached Figure Description

[0071] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0072] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0073] Figure 1 This is a cross-sectional structural diagram of the pet nutritional supplement granules described in Embodiment 1 of this disclosure.

[0074] Among them, 1. Bursting bead core material; 1-1. Wall material; 1-2. Core liquid; 2. Nutrient layer; 2-1. Flavor-masking microspheres; 2-1-1. Coating layer; 2-1-2. Core of the bead. Detailed Implementation

[0075] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0076] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0077] Example 1

[0078] This embodiment provides a pet nutritional supplement granule, the cross-sectional structure of which is shown in the schematic diagram below. Figure 1 As shown, it includes a bursting bead core material 1 with a diameter of 5mm and a nutrient layer 2 with a thickness of 3mm covering the surface of the bursting bead core material 1.

[0079] The bursting bead core material 1 includes a wall material 1-1 and a core liquid 1-2 encapsulated inside the wall material 1-1;

[0080] By weight, the core liquid 1-2 comprises 85 parts of Antarctic krill oil, 20 parts of DHA algal oil and 5 parts of pumpkin seed oil.

[0081] The nutrient layer 2 consists of flavor-masking micro-pellets 2-1 with a diameter of 1 mm, starch, maltodextrin, and white sugar.

[0082] The flavor-masked micro-pellets 2-1 include a pellet core 2-1-2 and a coating layer 2-1-1 covering the surface of the pellet core 2-1-2;

[0083] The pellet core 2-1-2 contains vitamins;

[0084] The coating layer 2-1-1 comprises 25 wt% chicken meat, 20 wt% chicken liver, 20 wt% beef, 3 wt% taurine, 1 wt% proline, 2 wt% lysine, 1 wt% glycine, 3 wt% glutamic acid, 1 wt% salt, 5 wt% sodium alginate, 1 wt% polyethylene glycol, 5 wt% hydroxypropyl methylcellulose, and 13 wt% zein.

[0085] The preparation method includes the following steps:

[0086] (1) Preparation of the popping bead core material 1

[0087] S1: Prepare core fluid 1-2

[0088] At 25°C, 20 kg of Antarctic krill oil, 5 kg of DHA algal oil, and 1.25 kg of pumpkin seed oil were mixed to obtain core liquid 1-2.

[0089] S2: Prepare the adhesive solution (raw material for wall material 1-1)

[0090] At 60℃, 90g of glycerin, 30g of sorbitol solution, and 3kg of gelatin were added to 20kg of purified water in sequence, stirred evenly, and then heated to 80℃ for 2 hours to obtain a gel solution.

[0091] S3: Add the core liquid 1-2 to the oil pot of the dropper, add the glue liquid to the glue pot of the dropper, and after the glue liquid has been completely defoamed for 2 hours, start the dripping process. Set the dripping speed of the dropper to 50 Hz. The generated concentric droplets (i.e., the glue liquid wraps the core liquid 1-2) fall into the liquid paraffin oil to form wet pellets. Then put the wet pellets into the rotary drum dryer to dry, and at the same time use oil-absorbing paper to absorb the surface paraffin oil. When the moisture content is below 8 wt%, the bursting bead core material 1 is obtained.

[0092] The obtained popping bead core material 1 is screened with a standard sieve to select 5mm good products, and then the irregular round, leaking and broken unqualified products are manually screened out. The output of the popping bead core material 1 is 26kg.

[0093] (2) Nutrient layer 2

[0094] S3: Preparation of pellet core 2-1-2:

[0095] 1.5g of powdered vitamin A, 5g of powdered vitamin D3, 1g of powdered vitamin B1, 2g of powdered vitamin B2, 1g of powdered vitamin B6, 0.02g of powdered vitamin B12, 10g of powdered niacin, 0.2g of powdered folic acid, and 10g of powdered D-calcium pantothenate were placed in a centrifugal granulator and rolled into spheres, and then dried to obtain pellet core 2-1-2 with a moisture content of 9wt%.

[0096] S4: Preparation of coating solution: Dissolve 2.5 kg of chicken meal, 2 kg of chicken liver meal, 2 kg of beef meal, 0.3 kg of taurine, 0.1 kg of proline, 0.2 kg of lysine, 0.1 kg of glycine, 0.3 kg of glutamic acid, 0.1 kg of salt, 0.5 kg of sodium alginate, 0.1 kg of polyethylene glycol 400, 0.5 kg of hydroxypropyl methylcellulose, and 1.3 kg of corn gluten in 56 kg of water to obtain the coating solution;

[0097] S5: Preparation of taste-masking microspheres 2-1

[0098] 100 kg of pellet core 2-1-2 was placed in a bottom spray fluidized bed coating machine, and the bottom spray aerator was turned on for coating to obtain flavor-masked micro pellets 2-1 with a diameter of 1 mm.

[0099] S6: Prepare the mixed powder (raw material for nutrient layer 2)

[0100] Mix 50 kg of maltodextrin, 30 kg of pregelatinized corn starch, and 20 kg of flavor-masked micro pellets 2-1 to obtain a mixed powder.

[0101] S7: Place the qualified popping bead core material 1 obtained in step (1) into a centrifugal granulator, set the rotation speed to 100HZ, spray water to wet the surface of the popping bead core material 1, spray mixed powder to roll it into a ball, take it out after the diameter reaches 8mm, dry it at 70℃ until the moisture content is below 8wt%, and obtain pet nutritional supplement granules.

[0102] Example 2

[0103] This embodiment provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 1, except that the core liquid 1-2 includes 18.75 kg of Antarctic krill oil, 6.25 kg of DHA algal oil and 2.5 kg of pumpkin seed oil.

[0104] The preparation method is the same as that in Example 1, except that in step S1, 18.75 kg of Antarctic krill oil, 6.25 kg of DHA algal oil and 2.5 kg of pumpkin seed oil are mixed at 25°C to obtain core liquid 1-2.

[0105] The output of the bursting bead core material 1 in this preparation process is 24.5 kg.

[0106] Example 3

[0107] This embodiment provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 1, except that the core liquid 1-2 includes 21.25 kg of Antarctic krill oil, 3.75 kg of DHA algal oil and 2 kg of pumpkin seed oil.

[0108] The preparation method is the same as that in Example 1, except that in step S1, 21.25 kg of Antarctic krill oil, 3.75 kg of DHA algal oil and 2 kg of pumpkin seed oil are mixed at 25°C to obtain core liquid 1-2.

[0109] The output of the popping bead core material 1 in this preparation process is 22 kg.

[0110] Comparative Example 1

[0111] This comparative example provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 1, except that the core liquid 1-2 only contains 26.25 kg of Antarctic krill oil.

[0112] The preparation method is the same as that in Example 1, except that in step S1, the core liquid 1-2 is prepared at 25°C and contains only 26.25 kg of Antarctic krill oil.

[0113] The output of the popping bead core material 1 in this preparation process is 15 kg.

[0114] Comparative Example 2

[0115] This comparative example provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 1, except that the core liquid 1-2 includes 21 kg of Antarctic krill oil and 5.25 kg of DHA algal oil.

[0116] While keeping the total mass of the core liquid unchanged, the reduced weight of pumpkin seed oil was added to Antarctic krill oil and DHA algal oil in proportion.

[0117] The preparation method is the same as that in Example 1, except that in step S1, 21 kg of Antarctic krill oil and 5.25 kg of DHA algal oil are mixed at 25°C to obtain core liquid 1-2.

[0118] The output of the bursting bead core material 1 in this preparation process is 15.4 kg.

[0119] Comparative Example 3

[0120] This comparative example provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 1, except that the core liquid 1-2 includes 24.71 kg of Antarctic krill oil and 1.54 kg of pumpkin seed oil.

[0121] While keeping the total mass of the core fluid unchanged, the reduced weight of DHA algal oil is added proportionally to Antarctic krill oil and pumpkin seed oil.

[0122] The preparation method is the same as that in Example 1, except that in step S1, 24.71 kg of Antarctic krill oil and 1.54 kg of pumpkin seed oil are mixed at 25°C to obtain core liquid 1-2.

[0123] The output of the bursting bead core material 1 in this preparation process is 15.6 kg.

[0124] Comparative Example 4

[0125] This comparative example provides a pet nutritional supplement granule and its preparation method. The pet nutritional supplement granule is the same as the pet nutritional supplement granule in Example 2, except that the core liquid 1-2 includes 18.38 kg of Antarctic krill oil, 6.12 kg of DHA algal oil and 3 kg of pumpkin seed oil.

[0126] While keeping the total mass of the core liquid constant, the weight increase of pumpkin seed oil is reduced proportionally by Antarctic krill oil and DHA algal oil.

[0127] The preparation method is the same as that in Example 1, except that in step S1, 18.38 kg of Antarctic krill oil, 6.12 kg of DHA algal oil and 3 kg of pumpkin seed oil are mixed at 25°C to obtain core liquid 1-2.

[0128] The output of the popping bead core material 1 in this preparation process is 15 kg.

[0129] Product performance testing

[0130] The utilization rate of Antarctic krill oil in the pet nutritional supplement granules obtained in Examples 1-3 and Comparative Examples 1-4 was determined.

[0131] Antarctic krill oil utilization rate % = total mass of popping bead core material / (total mass of core liquid material + total mass of edible gum material) × 100%, where edible gum refers to gluconate, and the amounts of glycerin and sorbitol are not considered.

[0132] The utilization rate of Antarctic krill oil in the pet nutritional supplement granules obtained in Examples 1-3 and Comparative Examples 1-4 is shown in Table 1.

[0133] Table 1

[0134]

[0135] in conclusion:

[0136] The test results show that the addition of DHA algal oil and pumpkin seed oil to the Antarctic krill oil capsules of the pet nutritional supplement granule product in this application ensures the structural stability of the product, thereby effectively improving the utilization rate of Antarctic krill oil from 49% to over 73%.

[0137] The core liquid of the popping bead core material in Comparative Example 1 contained only Antarctic krill oil, resulting in a low utilization rate.

[0138] Comparative Examples 2 and 3 only added either DHA algal oil or pumpkin seed oil, and the two could not exert a synergistic effect, resulting in limited improvement in the utilization rate of Antarctic krill oil.

[0139] The excessive amount of pumpkin seed oil added in Comparative Example 4 reduced the utilization rate of Antarctic krill oil and increased the risk of pet allergies.

[0140] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0141] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pet nutritional supplement granule, characterized in that, Includes a bursting bead core material and a nutrient layer covering the surface of the bursting bead core material; The bursting bead core material includes a wall material and a core liquid encapsulated inside the wall material; The core liquid is composed of 75-85 parts by weight of Antarctic krill oil, 15-25 parts of DHA algal oil and 5-10 parts of pumpkin seed oil. The nutrient layer comprises flavor-masking microspheres, which include a core and a coating layer covering the surface of the core. The core of the pellet contains vitamins; The coating layer comprises a first animal-derived meat, amino acids, salt, sodium alginate, polyethylene glycol, hydroxypropyl methylcellulose, and zein.

2. The pet nutritional supplement granules according to claim 1, characterized in that, The diameter of the bursting bead core material is 5-6 mm.

3. The pet nutritional supplement granules according to claim 1, characterized in that, The wall material comprises glycerin, sorbitol, and edible gum.

4. The pet nutritional supplement granules according to claim 3, characterized in that, The mass ratio of glycerol, sorbitol and edible gum added is (80-100):(20-40):(2800-3200).

5. The pet nutritional supplement granules according to claim 3, characterized in that, The wall material also includes colorants.

6. The pet nutritional supplement granules according to claim 3, characterized in that, The edible gum includes gelatin.

7. The pet nutritional supplement granules according to claim 1, characterized in that, The vitamins include one or more of vitamin B1, vitamin B2, vitamin B6, vitamin B12, D-calcium pantothenate, or niacin.

8. The pet nutritional supplement granules according to claim 7, characterized in that, The vitamins also include one or more of vitamin A, vitamin D3, vitamin K, or folic acid.

9. The pet nutritional supplement granules according to claim 1, characterized in that, The nutrient layer also includes a first excipient, which includes one or more of starch, maltodextrin, or white sugar.

10. The pet nutritional supplement granules according to claim 1, characterized in that, The first animal-derived meat includes one or more of chicken, chicken liver, or beef.

11. The pet nutritional supplement granules according to claim 1, characterized in that, The amino acid includes one or more of taurine, proline, lysine, glycine, or glutamic acid.

12. The pet nutritional supplement granules according to claim 10, characterized in that, The coating layer comprises, by weight percentage, 60-75 wt% of first animal-derived meat, 10-20 wt% of amino acids, 1-3 wt% of salt, 5-15 wt% of sodium alginate, 1-5 wt% of polyethylene glycol, 3-7 wt% of hydroxypropyl methylcellulose and 5-15 wt% of zein.

13. The pet nutritional supplement granules according to claim 1, characterized in that, The diameter of the flavor-masking microspheres is 0.9-1.1 mm.

14. The pet nutritional supplement granules according to claim 1, characterized in that, The thickness of the nutrient layer is 2-3 mm.

15. A method for preparing pet nutritional supplement granules as described in any one of claims 1-14, characterized in that, The preparation method includes the following steps: (1) Prepare the core liquid and the wall material adhesive liquid. Use microencapsulation technology to make the core liquid and the wall material adhesive liquid form concentric droplets, which are then dropped into the coagulation liquid to form wet pellets. The wet pellets are dried to obtain the bursting core material. (2) Prepare powdered vitamins and use centrifugal granulation to obtain pellet cores; then, coat the obtained pellet cores to obtain taste-masked micro-pills; (3) Prepare the nutrient layer powder and use centrifugal granulation to form a nutrient layer on the surface of the popping bead core material obtained in step (1), and then dry it to obtain pet nutritional supplement granules; The nutrient layer powder includes flavor-masking micro-pellets.

16. The preparation method according to claim 15, characterized in that, The preparation method further includes: after drying in step (3), a flavor layer is formed on the surface of the nutrient layer by centrifugal granulation, and then dried to obtain pet nutritional supplement granules.

17. The preparation method according to claim 15, characterized in that, The drying temperature in step (1) is 25-35℃.

18. The preparation method according to claim 15, characterized in that, After drying as described in step (1), the moisture content of the obtained popping bead core material is below 8 wt%.

19. The preparation method according to claim 15, characterized in that, The drying temperature in step (3) is 60-80℃.

20. The preparation method according to claim 15, characterized in that, After drying as described in step (3), the moisture content of the obtained pet nutritional supplement granules is below 8 wt%.

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