Old dog food capable of improving oxidation resistance and production process thereof

Abstract

The invention belongs to the technical field of pet foods, and particularly relates to an old dog food capable of improving oxidation resistance and a production process of the old dog food. The old dog food capable of improving the oxidation resistance is prepared from the following components in parts by weight: 9 to 12 parts of barley, 8 to 15 parts of brown rice, 10 to 13 parts of oat, 5 to 15 parts of cyperus esculentus, 0.05 to 0.3 part of prebiotics, 0.1 to 0.3 part of vitamin C, 3 to 8 parts of dietary fiber, 3 to 8 parts of enzymolysis meat powder, 18 to 22 parts of chicken powder, 2 to 5 parts of premix, 6 to 8 parts of animal fat and 4 to 8 parts of animal hydrolysate. The food for the elderly dogs can realize the synergistic interaction of the cyperus esculentus, the prebiotics (chitosan oligosaccharide) and the VC on the anti-oxidation effect of the elderly dogs.

Description

Technical Field

[0001] This invention belongs to the technical field of pet food, specifically relating to a senior dog food that can enhance antioxidant capacity and its production process. Background Technology

[0002] Currently, there are many types of dog food on the market, but their core focus is on puppies or adult dogs. Senior dogs, as a special group, are often overlooked. As dogs age, their bodily functions gradually decline, and their nutritional needs change. Senior dogs' digestive systems become more fragile, their energy consumption decreases, but their needs for antioxidants and joint health increase. Therefore, senior dogs require special attention due to their unique physiological condition.

[0003] However, current senior dog foods on the market fall short in meeting these specific needs. For example, some dog foods use antioxidants with limited effectiveness, failing to fully meet the needs of senior dogs to combat free radicals and slow down aging; some dog foods also lack a balanced nutritional composition, making it difficult to comprehensively improve the immunity and physical function of senior dogs.

[0004] A survey of dog owners' pet food consumption habits shows that dry food remains the first choice for most dog owners. Therefore, there is an urgent need to develop a staple food suitable for senior dogs, such as extruded dry food.

[0005] Tiger nuts, as a newly emerging oilseed plant, are rich in nutrients and various bioactive substances. Their oil is high in oleic acid and also rich in vitamins E and C, exhibiting strong antioxidant properties. This has garnered widespread attention in the food, nutrition, and livestock production sectors. However, current research and products utilizing tiger nuts in senior dog food are limited, failing to fully realize their potential in meeting the specific nutritional needs of older dogs. Summary of the Invention

[0006] To address the shortcomings of the existing technology, this invention provides a senior dog food and its production process that can enhance antioxidant capacity, thereby achieving a synergistic effect of tiger nuts, prebiotics (chitosan oligosaccharides), and vitamin C (VC) on the antioxidant effects of senior dogs.

[0007] The specific technical solution is as follows: The first objective of this invention is to provide a senior dog food that can enhance antioxidant capacity, comprising the following components by weight: 9-12 parts barley, 8-15 parts brown rice, 10-13 parts oats, 5-15 parts tiger nuts, 0.05-0.3 parts prebiotics, 0.1-0.3 parts vitamin C, 3-8 parts dietary fiber, 3-8 parts enzymatically hydrolyzed meat meal, 18-22 parts chicken meal, 2-5 parts premix, 6-8 parts animal fat, and 4-8 parts animal hydrolysate.

[0008] Further, the premix comprises the following components: choline chloride 1200~2400 mg / kg, vitamin A acetate 5000~15000 IU / kg, thiamine nitrate (vitamin B1) 1~5 mg / kg, riboflavin (vitamin B2) 2~8 mg / kg, pyridoxine hydrochloride (vitamin B6) 1~5 mg / kg, cyanocobalamin (vitamin B12) 10~50 μg / kg, vitamin D3 500~2000 IU / kg, DL-α-tocopheryl acetate 50~200 mg / kg, L-ascorbic acid-2-phosphate 50~500 mg / kg, D-biotin 20~100 μg / kg, nicotinamide 10~40 mg / kg, D-calcium pantothenate 5~20 mg / kg, folic acid 0.1~1 mg / kg, ferrous sulfate 80~200 mg / kg, and copper sulfate 5~20 mg / kg. mg / kg, manganese sulfate 5~20 mg / kg, zinc sulfate 50~150 mg / kg, potassium iodate 0.3~1 mg / kg, light calcium carbonate 5~15 g / kg, dicalcium phosphate 3~10 g / kg, sodium chloride 0.5~2 g / kg.

[0009] Furthermore, the prebiotic is selected from chitosan oligosaccharides.

[0010] The second objective of this invention is to provide a production process for the aforementioned senior dog food that enhances antioxidant capacity, comprising the following steps: S1 Ingredients: Grind the granular barley, brown rice, oats, and tiger nuts according to the formula, and then mix them evenly with other powdered ingredients; S2 puffing: The product is formed by flash steaming the uniformly mixed raw materials; S3 Drying: Baking the puffed product; S4 Spray Cooling: Animal fats and animal hydrolysates are evenly sprayed onto the dried product granules, and after air cooling, the products are put into the finished product warehouse. S5 Packaging: Finished products in the finished product warehouse are sealed and packaged after passing through a metal detector.

[0011] Furthermore, in step S2, a flash evaporation process is carried out using an extruder under high temperature and high pressure conditions of 3.5~10 MPa and 120~180℃.

[0012] Furthermore, in step S2, the moisture content of the product after puffing is 19-25%.

[0013] Furthermore, in step S3, the baking temperature is 85~130℃ and the drying time is 23~30min.

[0014] Furthermore, in step S3, the moisture content of the baked product is below 10%, preferably 4-8%.

[0015] Furthermore, in step S3, the puffed product is conveyed to a dryer for baking.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, tiger nuts, prebiotics (chitosan oligosaccharides), and vitamin C (VC) have a synergistic effect on the antioxidant effect in older dogs. (1) Scavenging free radicals: The antioxidants in tiger nuts can work synergistically with prebiotics (chitosan oligosaccharides) and vitamin C in different environments to more comprehensively scavenge various free radicals; the polyphenols (such as chlorogenic acid and flavonoids) and vitamin E in tiger nuts are fat-soluble and can penetrate cell membranes to enter the lipid phase (such as cell membranes and organelle membranes), preferentially scavenging fat-soluble free radicals (such as lipid peroxide free radicals) and protecting biological membrane structures from oxidative damage; Vitamin C is water-soluble and mainly scavenge water-soluble free radicals such as superoxide anions and hydroxyl radicals in water-soluble environments such as extracellular fluid and plasma, blocking their initial attack on cell membranes. Although chitosan oligosaccharide has a weak ability to directly scavenge free radicals, the hydroxyl and amino groups in its molecule can assist in capturing free radicals through hydrogen bonding or proton transfer. At the same time, it can indirectly enhance the scavenging efficiency of vitamin C and polyphenols by regulating the pH of the extracellular environment. Tiger nuts, chitosan oligosaccharides, and vitamin C work together to cover both the intracellular and extracellular spaces, as well as the lipid and water phases, avoiding the blind spots of a single antioxidant.

[0017] (2) Enhance antioxidant enzyme activity: Tiger nuts contain a variety of nutrients that can provide raw materials for the synthesis of antioxidant enzymes and help maintain the active structure of enzymes; chitosan oligosaccharides can maintain the structural integrity of enzymes by reducing the allooxidative modification of antioxidant enzyme protein structure caused by oxidative stress; vitamin C participates in the activity regulation of a variety of enzymes in the body and promotes the synthesis and active expression of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), etc.; vitamin E in tiger nuts can ensure the stability of the environment in which antioxidant enzymes attached to biological membranes are located, thereby enhancing their activity; Tiger nuts, chitosan oligosaccharides, and vitamin C enhance the function of the antioxidant enzyme system in multiple ways, blocking oxidation reactions through different pathways and playing a synergistic role.

[0018] (3) Chelating metal ions: Chitosan oligosaccharide has a good ability to chelate metal ions. It can combine with metal ions such as iron and copper to reduce their catalytic effect on the generation of free radicals. VC can also form complexes with some metal ions to reduce the catalytic activity of metal ions, thereby reducing the generation of free radicals and enhancing the antioxidant capacity of older dogs.

[0019] (4) Repairing oxidative damage: The nutrients in tiger nuts help cell repair and regeneration, and can reduce the damage of oxidative damage to cells; at the same time, γ-oryzanol in tiger nuts also helps protect vitamin C from oxidative damage, prolongs their antioxidant effect time in the body, and jointly maintains the stability of the body's antioxidant system; chitosan oligosaccharide can promote the synthesis of extracellular matrix such as collagen, which helps repair damaged tissues and cells; vitamin C is an essential substance for the synthesis of collagen, which is crucial for maintaining the normal structure and function of tissues such as skin and joints, and is beneficial for repairing oxidative damage; vitamin E in tiger nuts can promote cell metabolism, enhance the cell's self-repair ability, and reduce the impact of oxidative damage on cell function. The synergistic effect of tiger nuts, chitosan oligosaccharides, and vitamin C can, to some extent, reverse the damage caused by oxidative stress to the bodies of older dogs and restore the normal function of cells and tissues. Attached Figure Description

[0020] Figure 1 This is a comparison chart of CAT data for various embodiments and comparative examples in this invention; Figure 2 This is a comparison chart of MDA data from various embodiments and comparative examples in this invention; Figure 3 This is a comparison chart of SOD data from various embodiments and comparative examples in this invention. Detailed Implementation

[0021] The principles and features of the present invention are described below with reference to examples. The examples are only used to explain the present invention and are not intended to limit the scope of the present invention.

[0022] In the specific implementation, the dietary fiber was purchased from Shandong Fanlan Biotechnology Co., Ltd., and the enzymatically hydrolyzed meat meal, animal fats, and animal hydrolysates were all from Yantai Zhongchong Food Co., Ltd.

[0023] Example 1 A senior dog food that can enhance antioxidant capacity includes the following components by weight: 9 parts barley, 8 parts brown rice, 11 parts oats, 5 parts tiger nuts, 0.05 parts chitosan oligosaccharide, 0.1 parts vitamin C, 3 parts dietary fiber, 3 parts enzymatically hydrolyzed meat meal, 18 parts chicken meal, 2 parts premix, 6 parts animal fat, and 4 parts animal hydrolysate.

[0024] The premix comprises the following components: choline chloride 1200 mg / kg, vitamin A acetate 5000 IU / kg, thiamine nitrate (vitamin B1) 1 mg / kg, riboflavin (vitamin B2) 2 mg / kg, pyridoxine hydrochloride (vitamin B6) 1 mg / kg, cyanocobalamin (vitamin B12) 10 μg / kg, vitamin D3 500 IU / kg, DL-α-tocopheryl acetate 50 mg / kg, L-ascorbic acid-2-phosphate 50 mg / kg, D-biotin 20 μg / kg, nicotinamide 10 mg / kg, D-calcium pantothenate 5 mg / kg, folic acid 0.1 mg / kg, ferrous sulfate 80 mg / kg, copper sulfate 5 mg / kg, manganese sulfate 5 mg / kg, zinc sulfate 50 mg / kg, potassium iodate 0.3 mg / kg, light calcium carbonate 5 g / kg, calcium hydrogen phosphate 3 g / kg, and sodium chloride 0.5 g / kg.

[0025] A production process for senior dog food that can enhance antioxidant capacity includes the following steps: S1 Ingredients: Grind the granular barley, brown rice, oats, and tiger nuts according to the formula, and then mix them evenly with other powdered ingredients; S2 Extrusion: The uniformly mixed raw materials are subjected to flash evaporation in an extruder at 7 MPa and 120°C to achieve product shaping. The moisture content of the extruded product is 19%. S3 Drying: The puffed product is conveyed to the dryer for baking at a temperature of 85°C for 23 minutes until the moisture content is below 8%. S4 Spray Cooling: Animal fats and animal hydrolysates are evenly sprayed onto the dried product granules, and after air cooling, the products are put into the finished product warehouse. S5 Packaging: Finished products in the finished product warehouse are sealed and packaged after passing through a metal detector.

[0026] Example 2 A senior dog food that can enhance antioxidant capacity includes the following components by weight: 10 parts barley, 10 parts brown rice, 10 parts oats, 10 parts tiger nuts, 0.1 parts chitosan oligosaccharide, 0.2 parts vitamin C, 5 parts dietary fiber, 5 parts enzymatically hydrolyzed meat meal, 20 parts chicken meal, 4 parts premix, 8 parts animal fat, and 6 parts animal hydrolysate.

[0027] The premix comprises the following components: choline chloride 1800 mg / kg, vitamin A acetate 10000 IU / kg, thiamine nitrate (vitamin B1) 3 mg / kg, riboflavin (vitamin B2) 5 mg / kg, pyridoxine hydrochloride (vitamin B6) 3 mg / kg, cyanocobalamin (vitamin B12) 30 μg / kg, vitamin D3 1500 IU / kg, DL-α-tocopheryl acetate 150 mg / kg, L-ascorbic acid-2-phosphate 250 mg / kg, D-biotin 60 μg / kg, nicotinamide 25 mg / kg, D-calcium pantothenate 15 mg / kg, folic acid 0.8 mg / kg, ferrous sulfate 150 mg / kg, copper sulfate 15 mg / kg, manganese sulfate 15 mg / kg, zinc sulfate 100 mg / kg, potassium iodate 0.6 mg / kg, light calcium carbonate 10 g / kg, calcium hydrogen phosphate 6 g / kg, sodium chloride 1 g / kg.

[0028] A production process for senior dog food that can enhance antioxidant capacity includes the following steps: S1 Ingredients: Grind the granular barley, brown rice, oats, and tiger nuts according to the formula, and then mix them evenly with other powdered ingredients; S2 Extrusion: The uniformly mixed raw materials are subjected to flash evaporation at 3.5 MPa and 140℃ using an extruder to achieve product shaping. The moisture content of the extruded product is 20%. S3 Drying: The puffed product is conveyed to a dryer for baking at 100℃ for 25 minutes, until the moisture content reaches 6%. S4 Spray Cooling: Animal fats and animal hydrolysates are evenly sprayed onto the dried product granules, and after air cooling, the products are put into the finished product warehouse. S5 Packaging: Finished products in the finished product warehouse are sealed and packaged after passing through a metal detector.

[0029] Example 3 A senior dog food that can enhance antioxidant capacity includes the following components by weight: 12 parts barley, 15 parts brown rice, 13 parts oats, 15 parts tiger nuts, 0.3 parts chitosan oligosaccharide, 0.3 parts vitamin C, 8 parts dietary fiber, 8 parts enzymatically hydrolyzed meat meal, 22 parts chicken meal, 5 parts premix, 8 parts animal fat, and 8 parts animal hydrolysate.

[0030] The premix comprises the following components: choline chloride 2400 mg / kg, vitamin A acetate 15000 IU / kg, thiamine nitrate (vitamin B1) 5 mg / kg, riboflavin (vitamin B2) 8 mg / kg, pyridoxine hydrochloride (vitamin B6) 5 mg / kg, cyanocobalamin (vitamin B12) 50 μg / kg, vitamin D3 2000 IU / kg, DL-α-tocopheryl acetate 200 mg / kg, L-ascorbic acid-2-phosphate 500 mg / kg, D-biotin 100 μg / kg, nicotinamide 40 mg / kg, D-calcium pantothenate 20 mg / kg, folic acid 1 mg / kg, ferrous sulfate 200 mg / kg, copper sulfate 20 mg / kg, manganese sulfate 20 mg / kg, zinc sulfate 150 mg / kg, potassium iodate 1 mg / kg, light calcium carbonate 15 g / kg, dicalcium phosphate 10 g / kg, and sodium chloride 2 g / kg.

[0031] A production process for senior dog food that can enhance antioxidant capacity includes the following steps: S1 Ingredients: Grind the granular barley, brown rice, oats, and tiger nuts according to the formula, and then mix them evenly with other powdered ingredients; S2 Extrusion: The uniformly mixed raw materials are subjected to flash evaporation at 10 MPa and 180℃ through an extruder to achieve product shaping. The moisture content of the extruded product is 25%. S3 Drying: The puffed product is conveyed to a dryer for baking at a temperature of 130℃ for 30 minutes, until the moisture content reaches 4%. S4 Spray Cooling: Animal fats and animal hydrolysates are evenly sprayed onto the dried product granules, and after air cooling, the products are put into the finished product warehouse. S5 Packaging: Finished products in the finished product warehouse are sealed and packaged after passing through a metal detector.

[0032] Comparative Example 1 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain tiger nuts, chitosan oligosaccharides, and vitamin C.

[0033] Comparative Example 2 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain tiger nuts.

[0034] Comparative Example 3 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain chitosan oligosaccharides.

[0035] Comparative Example 4 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain vitamin C.

[0036] Comparative Example 5 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain tiger nuts and chitosan oligosaccharides.

[0037] Comparative Example 6 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain tiger nuts and vitamin C.

[0038] Comparative Example 7 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain chitosan oligosaccharide and vitamin C.

[0039] Comparative Example 8 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain tiger nuts and contains 10.1 parts of chitosan oligosaccharide.

[0040] Comparative Example 9 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain chitosan oligosaccharides and contains 10.1 parts tiger nuts.

[0041] Comparative Example 10 A senior dog food and its production process, referring to Example 2, differs from Example 2 in that it does not contain vitamin C and contains 0.3 parts of chitosan oligosaccharide.

[0042] Tests and experiments: 1. Palatability test The experiment involved 30 dogs in each group, including Poodles, Bichon Frises, Corgis, Schnauzers, Chinese Dogs, and Pomeranians. The double-bowl test method was used, where two samples were placed simultaneously in front of the dogs to observe their eating behavior, record their preferred food and the amount consumed, and calculate the relative eating rate.

[0043] A relative feed intake rate = A feed intake / (A+B) feed intake * 100%.

[0044] Example 2 was tested with two bowls, and the average value was calculated for each of Comparative Examples 1-10. The test data are shown in Table 1.

[0045] Table 1. Data from palatability testing

[0046] By comparing the test data in Table 1, it can be seen that the use of tiger nuts, chitosan oligosaccharides, and vitamin C can significantly improve the palatability of dog food, thus indicating that the three have a synergistic effect.

[0047] 2. Antioxidant test Experimental protocol: Thirty healthy, elderly dogs, half male and half female, were selected from the company's own animal testing facility. The breeds included: 6 Teddy dogs, 4 Pomeranians, 5 Corgis, 3 Pugs, 3 Golden Retrievers, 5 Chinese Poodles, and 4 Schnauzers.

[0048] Living conditions: The company has its own animal house, which is cleaned and disinfected regularly; dogs are dewormed regularly; dogs are fed and rested in cages at set times, ensuring that dogs have ample space to move around.

[0049] Feeding plan: Calculate the feeding amount based on the dog's nutritional needs, feed once daily, using dog food formulated according to the example or comparative formula. Feed the dog once daily at 10:00 AM, ensuring a fixed amount of food and adequate drinking water. The feeding trial period is 28 days.

[0050] Blood collection: On day 28 of the experiment, 5 mL of blood was collected from the anterior vena cava of the pet dog. After centrifugation, the collected blood was stored at -20℃ for later use.

[0051] Biochemical index determination: Processed serum was removed from a -20℃ freezer and thawed at 4℃. All biochemical indexes were analyzed using reagent kits from Nanjing Jiancheng Bioengineering Institute. Catalase (CAT) was determined using the potassium permanganate method, total superoxide dismutase (T-SOD) was determined using the nitroblue tetrazolium photochemical reduction method, and malondialdehyde (MDA) was tested using the thiobarbituric acid (TBA) method.

[0052] The test data is shown in Table 2. Comparison charts of CAT, MDA, and SOD data for each embodiment and comparative example are shown below. Figures 1-3 As shown.

[0053] Table 2 Data from antioxidant tests

[0054] By comparing Table 2 and Figures 1-3The test data show that, as seen in Comparative Examples 1 and 5-7, the diet of Comparative Example 1 did not contain any antioxidants (tiger nuts, chitosan oligosaccharides, and vitamin C), while the diets of Comparative Examples 5-7 each contained tiger nuts, chitosan oligosaccharides, and vitamin C individually. This indicates that all three substances can significantly improve the serum antioxidant capacity of older dogs. Furthermore, combining Comparative Examples 5-7 and 2-4, it can be seen that the diets of Comparative Examples 2-4 containing tiger nuts, chitosan oligosaccharides, and vitamin C in combination showed higher serum antioxidant capacity than those of Comparative Examples 5-7 containing only tiger nuts, chitosan oligosaccharides, and vitamin C. This suggests that tiger nuts, chitosan oligosaccharides, and vitamin C have a synergistic effect, further enhancing the antioxidant capacity of older dogs. Combining Examples 1-3 (especially Example 2) and Comparative Examples 2-4, it can be seen that the diets of Examples 1-3, which simultaneously contained tiger nuts, chitosan oligosaccharides, and vitamin C... Compared with control groups 2-4, the serum antioxidant capacity of senior dogs in group C, which were supplemented with tiger nuts, chitosan oligosaccharides, and vitamin C in pairs, was higher. This indicates that the synergistic effect of tiger nuts, chitosan oligosaccharides, and vitamin C can better improve the antioxidant level in senior dogs. First, tiger nuts are rich in vitamin E, which can participate in some lipid peroxidation processes in the body. Vitamin E and vitamin C have a synergistic effect. Vitamin C acts as a reducing agent for vitamin E free radicals, reducing them and allowing vitamin E to regenerate. Furthermore, vitamin E has a thrifty effect on vitamin C. The mutual promotion and synergy between the two can better improve the body's antioxidant level. Prebiotics (chitosan oligosaccharides) can also work together with vitamin C to enhance the activity of antioxidant enzymes in the body. With vitamin C as a medium, the three can better enhance the activity of catalase (CAT) and superoxide dismutase (SOD) in the body, while reducing malondialdehyde (MDA) levels. The effect is far superior to using them alone.

[0055] Furthermore, combining Example 2 and Comparative Examples 8-10, it can be seen that when the total weight of tiger nuts, chitosan oligosaccharide, and vitamin C is the same, the synergistic effect of the combination of the three in Example 2 is far superior to the pairwise combinations in Comparative Examples 8-10, further verifying the synergistic effect of tiger nuts, chitosan oligosaccharide, and vitamin C.

[0056] In Example 1, the amount of tiger nuts used was 5 parts, while in Comparative Examples 3, 4, and 10, the amount of tiger nuts used was 10 parts, and in Comparative Example 9, the amount of tiger nuts used was 10.1 parts. It can be seen that the amount of tiger nuts used in Example 1 is about half that in Comparative Examples 3, 4, 9, and 10. However, as can be seen from the antioxidant data in Table 2, the antioxidant effect of Example 1 is better than that of Comparative Examples 3, 4, and 10, and is comparable to that of Comparative Example 9. This further demonstrates that tiger nuts have a strong synergistic effect with chitosan oligosaccharide and vitamin C.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A senior dog food capable of improving antioxidant capacity, characterized by, By weight parts, including the following components: barley 9~12 parts, brown rice 8~15 parts, oat 10~13 parts, oil bean 5~15 parts, prebiotics 0.05~0.3 parts, vitamin C 0.1~0.3 parts, dietary fiber 3~8 parts, enzymatic meat powder 3~8 parts, chicken powder 18~22 parts, premix 2~5 parts, animal fat 6~8 parts, animal hydrolysate 4~8 parts.

2. The senior dog food with improved antioxidant ability according to claim 1, characterized in that, The premix includes the following components: choline chloride 1200~2400 mg / kg, vitamin A acetate 5000~15000 IU / kg, thiamine nitrate 1~5 mg / kg, riboflavin 2~8 mg / kg, pyridoxine hydrochloride 1~5 mg / kg, cyanocobalamin 10~50 μg / kg, vitamin D3 500~2000 IU / kg, DL-α-tocopherol acetate 50~200 mg / kg, L-ascorbic acid-2-phosphate 50~500 mg / kg, D-biotin 20~100 μg / kg, nicotinamide 10~40 mg / kg, D-pantothenate calcium 5~20 mg / kg, folic acid 0.1~1 mg / kg, ferrous sulfate 80~200 mg / kg, copper sulfate 5~20 mg / kg, manganese sulfate 5~20 mg / kg, zinc sulfate 50~150 mg / kg, potassium iodate 0.3~1 mg / kg, light calcium carbonate 5~15 g / kg, calcium hydrogen phosphate 3~10 g / kg, sodium chloride 0.5~2 g / kg.

3. The senior dog food with enhanced antioxidant capacity according to claim 1, characterized in that, The prebiotics are selected from chitooligosaccharides.

4. The process for producing the senior dog food having improved antioxidant ability according to any one of claims 1 to 3, characterized by, The method comprises the following steps: S1: ingredients: after crushing the granular materials of barley, brown rice, oat and oil bean, mix them with other powders evenly according to the formula; S2: puffing: realize product forming through flash process by puffing machine under the conditions of 3.5~10 Mpa and 120~180℃; S3: drying: dry the puffing-formed product; S4: spraying and cooling: uniformly spray animal fat and animal hydrolysate on the dried product particles, and then cool the product in the air and put it into the finished product warehouse; S5: packaging: seal and package the finished product in the finished product warehouse after passing through the metal detector.

5. The process for producing the senior dog food having improved antioxidant ability according to claim 4, characterized by, In step S2, the flash process is carried out by the puffing machine under the conditions of 3.5~10 Mpa and 120~180℃.

6. The process for producing the senior dog food having improved antioxidant ability according to claim 4, characterized by, In step S2, the moisture content of the puffing-formed product is 19~25%.

7. The process for producing the senior dog food having improved antioxidant ability according to claim 4, characterized by, In step S3, the baking temperature is 85~130℃, and the drying time is 23~30 min.

8. The process for producing the senior dog food having improved antioxidant ability according to claim 4, characterized by, In step S3, the moisture content of the baked product is below 10%.

9. The process for producing the senior dog food having improved antioxidant ability according to claim 8, wherein, In step S3, the moisture content of the baked product is 4~8%.

10. The process for producing the senior dog food having improved antioxidant ability according to claim 4, characterized by, In step S3, the puffing-formed product is conveyed to the dryer for baking.

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