Pet food capable of protecting intestines and regulating stomach and preparation technology of pet food

Abstract

The main components of the pet food comprise animal-derived protein, plant-derived protein, an intestine-protecting plant extract, functional fat and nutrients, carbohydrates, a compound vitamin mineral premix and auxiliary materials, superfine grinding, a coating technology and a low-temperature technology are combined, and the intestinal-protecting and stomach-regulating pet food is prepared. The survival rate of clostridium butyricum is increased by 40% or above compared with that of a traditional process, the heat-sensitive component retention rate is 80%, the plant extract and the functional nutrients have a synergistic effect, the expression of tight junction protein in the intestinal tract of a pet can be improved, the barrier function of the intestinal tract is enhanced, the inflammatory reaction of the intestinal tract is reduced, and feeding tests verify that the soft excrement rate of dogs in a test group is reduced by 65%; the content of serum immunoglobulin IgA is increased by 32%, the palatability of pets is increased by 20% due to the optimized protein-fat ratio and the natural phagostimulant, and the digestibility of protein is further increased due to the addition of medium-chain fatty acid and glutamine.

Description

Technical Field

[0001] This invention relates to the field of pet food technology, and in particular to a pet food that protects the intestines and stomach and its preparation process. Background Technology

[0002] With socio-economic development and changes in people's lifestyles, the companionship attribute of pets has become increasingly important. Pets have become important family members in human life, and pet health has gradually become a core focus for pet owners. As the largest immune and digestive organ in a pet's body, the health of the gut directly determines the pet's overall health, growth and development quality, and lifespan. A healthy gut can efficiently digest and absorb nutrients in pet food, providing sufficient energy for the pet's body, and can also build a stable gut microbiota barrier to resist the invasion of harmful microorganisms and reduce the occurrence of intestinal diseases such as diarrhea, constipation, and gastroenteritis. Conversely, gut dysfunction can lead to a series of problems in pets, such as decreased appetite, poor nutrient absorption, low immunity, and rough fur, which seriously affect the pet's quality of life and even threaten its health. Given the importance of pet gut health, gut-care pet food has become one of the mainstream demands in the pet food market. More and more pet owners are choosing products with gut care functions to prevent intestinal diseases and improve their pets' gut health. Currently, existing gut-care pet foods on the market mainly achieve their gut care function by adding probiotics or prebiotics, attempting to regulate the balance of gut flora to achieve gut health. However, most of these pet foods only add a single strain of probiotics or a single type of prebiotic, resulting in a simple bacterial structure and limited target points. During storage, since the probiotics in existing gut-care pet foods are mostly live bacteria preparations, their activity is easily affected by the external environment, and they are prone to inactivation during long-term storage. Secondly, in terms of manufacturing process, most pet foods on the market currently use traditional high-temperature baking or high-temperature extrusion processes. Although these processes can achieve rapid shaping, sterilization, and preservation of pet food, improving product taste and shelf life, the high-temperature environment can severely damage the heat-sensitive nutrients in pet food, affecting the realization of gut health. Summary of the Invention

[0003] The purpose of this invention is to address the problems of existing pet food that cannot accurately care for the gastrointestinal tract of pets due to the single target of action caused by the single type of probiotics added, instability, and the destruction of heat-sensitive nutrients by high-temperature extrusion. Therefore, this invention proposes a pet food that protects the gastrointestinal tract and its preparation process.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pet food for protecting the intestines and stomach, comprising the following components by weight percentage, Animal-derived protein: 30%-40% Plant-derived protein: 8%-15% Intestinal-protecting plant extracts: 5%-12% Functional fats and nutrients: 3%-8% Carbohydrates: 20%-30% Multivitamin and mineral premix: 1%-2% Excipients: 0.5%-1.5%, in: The intestinal-protecting plant extract is prepared from Codonopsis pilosula, Atractylodes macrocephala, Dioscorea opposita, Poria cocos, Euryale ferox, Coix lacryma-jobi, Portulaca oleracea, pumpkin powder, and hawthorn through a water extraction and alcohol precipitation process. The functional fats and nutrients include Clostridium butyricum coated preparations, medium-chain fatty acids, mannan oligosaccharides, and L-glutamine, wherein the medium-chain fatty acid components are C8-C12 triglycerides.

[0005] As a further description of the above-mentioned pet food for protecting the intestines and stomach: the animal-derived protein is one or a combination of two of chicken meal and hydrolyzed fish meal; the plant-derived protein is one or a combination of two of rice protein powder and pea protein.

[0006] As a further description of the above-mentioned pet food for protecting the intestines and stomach: the Clostridium butyricum coating preparation adopts a double-layer coating process, with the inner layer being hydroxypropyl methylcellulose and the outer layer being magnesium stearate. After coating, the survival rate of Clostridium butyricum is 90%.

[0007] As a further description of the above-mentioned technology for pet food that protects the intestines and stomach: the excipients include natural antioxidants and pet palatability enhancers.

[0008] As a further description of the above-mentioned pet food that protects the intestines and stomach: the natural antioxidant ingredient is rosemary extract.

[0009] A process for preparing pet food that protects the intestines and stomach includes the following steps: S1. Ultrafine grinding pretreatment: After drying plant raw materials such as Codonopsis pilosula and Atractylodes macrocephala at low temperature, they are ground to a particle size of 100 μm using an ultrafine grinder. Animal protein and carbohydrate raw materials are ground to 80 mesh respectively. S2. Preparation of plant extracts: The ultra-finely pulverized plant raw materials were added to purified water at a material-to-liquid ratio of 1:15 and extracted twice at a constant temperature of 90℃ for 2 hours each time. The extracts were combined and ethanol was added to make the alcohol concentration reach 60%. After standing and precipitation, the supernatant was collected, and the plant extract powder was obtained by vacuum concentration and spray drying. The required moisture content was 5%. S3. Functional ingredient coating: Clostridium butyricum and L-glutamine were coated in a double layer using a fluidized bed coating machine. The inner layer was hydroxypropyl methylcellulose and the outer layer was magnesium stearate. S4. Low-temperature wet mixing and conditioning: Add the basic raw materials, plant extracts and excipients into the mixer according to the formula ratio, mix at low speed for 5 minutes and then mix at high speed for 8 minutes; the mixture is then put into the conditioner and conditioned at 65-70℃ and 25%-30% humidity for 3-5 minutes. S5. Low-temperature extrusion puffing: Using a twin-screw extruder, low-temperature puffing is carried out at 100-110℃, screw speed 150-180r / min, and die orifice diameter 2.0-2.5mm to obtain puffed particles with a particle size of 3-5mm. S6. Low-temperature drying: The expanded granules are fed into a belt dryer and dried at 55-60℃ until the moisture content is 10%; S7. Post-coating treatment: The coated functional components and natural antioxidants are evenly sprayed onto the surface of the dry granules, cooled to room temperature by a fluidized bed, and packaged after screening and metal detection. In S2, the inlet air temperature for spray drying is 180-190℃, and the outlet air temperature is 80-90℃.

[0010] In the S5, the feeding speed of the twin-screw extruder is 100-120 kg / h to ensure uniform material conditioning.

[0011] In summary, due to the adoption of the above-mentioned pet food for protecting the intestines and stomach and its preparation process, the beneficial effects of this invention are: In this invention, by combining ultrafine pulverization, coating technology and low-temperature processing, the survival rate of Clostridium butyricum is increased by more than 40% compared with traditional processes, and the retention rate of heat-sensitive components is 80%. The synergistic effect of plant extracts and functional nutrients can enhance the expression of tight junction proteins in the pet's intestine, strengthen the intestinal barrier function, and reduce intestinal inflammatory response. Feeding trials have verified that the rate of soft stools in the experimental group of dogs decreased by 65%, and the serum immunoglobulin IgA content increased by 32%. The optimized protein-fat ratio and natural palatability enhance the palatability of pets by 20%. The addition of medium-chain fatty acids and glutamine increases the protein digestibility to 85%, further improving protein digestibility. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall preparation process of the present invention; Figure 2 Images of fecal samples before and after intestinal care according to the present invention. Detailed Implementation

[0013] The following will describe clearly and completely the technology of pet food for protecting the intestines and stomach and its preparation process according to the embodiments of the present invention, with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Example 1 Intestinal health-promoting functional pet food formula (per 100kg) Components Weight (kg) Chicken meal 32 Hydrolyzed fish meal 8 Rice protein meal 10 Broken rice 22 Tapioca starch 8 Intestinal protection plant extract 8 Medium-chain fatty acids 3 Clostridium butyricum coated preparation 0.5 Mannan oligosaccharides 1.5 L-glutamine 1 Compound vitamin and mineral premix 1.8 Rosemary extract 0.2 Pet attractant 2 Example 2 Preparation process steps Ultrafine grinding: After low-temperature drying, plant raw materials such as Codonopsis pilosula and Atractylodes macrocephala are ultrafine ground to a particle size of 100 μm; raw materials such as chicken powder and broken rice are ground to 80 mesh.

[0015] Preparation of plant extract: The ultra-finely pulverized plant raw materials were added to purified water at a material-to-liquid ratio of 1:15 and extracted twice at 90℃ for 2 hours each time. The extracts were combined and ethanol was added to make the alcohol concentration reach 60%. After standing and precipitation, the supernatant was collected, concentrated under vacuum to a relative density of 1.20, and the relative temperature was 60℃. The extract powder was obtained by spray drying.

[0016] By breaking down cell walls, the dissolution rate of plant extracts is improved, increasing the release of active ingredients by more than 30% compared to traditional pulverization processes.

[0017] Functional ingredient coating: A fluidized bed coating machine was used to coat Clostridium butyricum and L-glutamine with hydroxypropyl methylcellulose as the inner coating material and magnesium stearate as the outer coating material.

[0018] Plant extracts and functional nutrients work synergistically to enhance the expression of tight junction proteins in the pet's gut, strengthen the intestinal barrier function, and reduce intestinal inflammatory responses.

[0019] By employing a double-layer coating technology, Clostridium butyricum and L-glutamine are encapsulated to ensure the targeted release of active ingredients in the pet's intestines, with a survival rate of 90%.

[0020] Mixing and conditioning: Mix the basic raw materials, extracts and excipients according to the formula ratio, mix at low speed for 5 minutes and then mix at high speed for 8 minutes; the mixture is then put into a conditioner and conditioned at 68°C and 28% humidity for 4 minutes.

[0021] Low-temperature puffing: The twin-screw extruder is set with a temperature of 105℃, a screw speed of 160r / min, a die diameter of 2.2mm, and a feeding speed of 110kg / h to obtain puffed granules.

[0022] The temperature is controlled below 110℃ throughout the process, which effectively preserves the activity of heat-sensitive nutrients and makes the protein digestibility 85%.

[0023] Low-temperature drying: The puffed granules are dried at 58°C until the moisture content is 8%.

[0024] Spray coating packaging: The coated functional ingredients and rosemary extract are sprayed onto the surface of the granules, cooled to room temperature, and then screened and packaged.

[0025] The combination of ultra-fine pulverization, coating technology and low-temperature process effectively preserves the activity of heat-sensitive components, increasing the survival rate of Clostridium butyricum by more than 40% compared with traditional processes.

[0026] Effect verification A 28-day feeding trial was conducted on 30 dogs with sensitive intestines. The results showed that: The rate of soft stools in the experimental group of dogs decreased from 42% before the experiment to 15%, and the fecal score improved significantly.

[0027] The serum immunoglobulin IgA level in the experimental group dogs was 32% higher than that in the control group, and the intestinal barrier function was significantly enhanced.

[0028] The protein digestibility of the experimental group of dogs reached 87%, which was 6% higher than that of the control group. Comparative project Before the test (control group / conventional process) After the test (Example 2 / inventive process) Change range / effect description Soft stool rate of intestinal sensitive dogs 42% 15% From 42% to 15%, feces score improved significantly, with a decrease of about 64.3% Serum immunoglobulin IgA content Control group normal level Increased by 32% compared with the control group Increased by 32% compared with the control group, and the intestinal barrier function was significantly enhanced Protein digestibility of dogs 81% (control group level) 87% Increased by 6 percentage points compared with the control group, the digestion and absorption performance was significantly improved, and met the standard of 85% Clostridium butyricum survival rate Conventional process normal level 90% Increased by more than 40% compared with the conventional process, and the active ingredients can be released in the intestinal tract of pets Retention rate of heat-sensitive ingredients Traditional high-temperature process level 80% The whole process temperature is controlled below 110°C, effectively retaining the activity of heat-sensitive nutrients, and increased by more than 40% compared with the traditional high-temperature process Dissolution rate of active ingredients of plant extract Traditional crushing process level Increased by more than 30% compared with the conventional process Through ultrafine grinding to realize cell wall breaking, significantly improve the dissolution rate of active ingredients of plant extract

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art who makes equivalent substitutions or changes to the pet food for protecting the stomach and intestines and its preparation process and inventive concept disclosed in the present invention within the scope of the technology disclosed in the present invention should be covered within the scope of protection of the present invention.

Claims

1. A pet food for protecting the intestines and stomach, characterized by comprising, By weight percentage, it comprises the following components, Animal source protein: 30%-40% Plant source protein: 8%-15% Intestine-protecting plant extract: 5%-12% Functional fat and nutrients: 3%-8% Carbohydrate: 20%-30% Compound vitamin and mineral premix: 1%-2% Auxiliary materials: 0.5%-1.5%, Among them: The intestine-protecting plant extract is prepared from radix codonopsis, atractylodes, Chinese yam, poria cocos, gordon euryale seed, coix seed, portulaca oleracea, pumpkin powder, and hawthorn by water extraction and alcohol precipitation process; The functional fat and nutrients include clostridium butyricum coated preparation, medium-chain fatty acids, mannose oligosaccharide, and L-glutamine, and the medium-chain fatty acid component is C8-C12 triglyceride.

2. The enterosorbent and stomach-protecting pet food according to claim 1, characterized in that: The animal source protein is one or a combination of two of chicken meal and hydrolyzed fish meal, and the plant source protein is one or a combination of two of rice protein powder and pea protein.

3. The enterosorbent and stomach-protecting pet food according to claim 1, characterized in that: The clostridium butyricum coated preparation adopts a double-layer coating process, the inner layer is hydroxypropyl methyl cellulose, and the outer layer is magnesium stearate, and the survival rate of clostridium butyricum after coating is 90%.

4. The preparation process of a pet food for protecting the intestines and stomach according to claim 1, characterized in that: The auxiliary materials include natural antioxidants and pet attractants.

5. The enterosorbent and stomach-protecting pet food according to claim 4, characterized in that: The natural antioxidant component is rosemary extract.

6. The process for preparing the enterosorbent and stomach-friendly pet food according to any one of claims 1 to 5, characterized in that, It comprises the following steps: S1. Ultrafine grinding pretreatment: after low-temperature drying of the plant raw materials such as radix codonopsis and atractylodes, the plant raw materials are ground to a particle size of 100 m by using an ultrafine grinder, and the animal protein and carbohydrate raw materials are ground to 80 mesh respectively; S2. Preparation of plant extract: the ultrafine ground plant raw materials are added to purified water at a solid-liquid ratio of 1:15, extracted at 90°C for 2 times, each time for 2 hours, the extracted liquid is combined, ethanol is added to make the alcohol concentration reach 60%, the supernatant is taken after standing and precipitating, vacuum concentration, spray drying to obtain plant extract powder, the water content is required to be 5%; S3. Functional ingredient coating: the clostridium butyricum and L-glutamine are double-layer coated by using a fluidized bed coater, the inner layer is hydroxypropyl methyl cellulose, and the outer layer is magnesium stearate; S4. Low-temperature wet mixing and conditioning: the basic raw materials, plant extract, and auxiliary materials are put into a mixer according to the formula proportion, mixed at low speed for 5 minutes and then at high speed for 8 minutes; the mixed material is put into a conditioner, and is conditioned at 65-70°C and humidity of 25%-30% for 3-5 minutes; S5. Low-temperature extrusion: a double-screw extruder is used for low-temperature expansion at 100-110°C, screw speed of 150-180 r / min, and die hole diameter of 2.0-2.5 mm, to obtain expanded particles with a particle size of 3-5 mm; S6. Low-temperature drying: the expanded particles are put into a belt dryer and dried at 55-60°C until the water content is 10%; S7. Post-treatment by spraying: the coated functional ingredients and natural antioxidants are uniformly sprayed on the surface of the dried particles, cooled to room temperature by a fluidized bed, and then packaged after screening and metal detection.

7. The preparation process of the pet food according to claim 6, wherein: In S2, the inlet air temperature for spray drying is 180-190°C, and the outlet air temperature is 80-90°C.

8. The preparation process of the pet food according to claim 6, wherein: In S5, the feeding speed of the double screw extruder is 100-120 kg / h, ensuring that the material conditioning is uniform.

Images