CN115956627A - Preparation method of low-temperature baked staple food grain wrapped freeze-dried crumbs - Google Patents
Preparation method of low-temperature baked staple food grain wrapped freeze-dried crumbs Download PDFInfo
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- CN115956627A CN115956627A CN202210973209.0A CN202210973209A CN115956627A CN 115956627 A CN115956627 A CN 115956627A CN 202210973209 A CN202210973209 A CN 202210973209A CN 115956627 A CN115956627 A CN 115956627A
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Abstract
The invention relates to a preparation method of low-temperature baked staple food grain wrapped freeze-dried chicken which not only maintains the fragrance of baked meat, but also has better palatability, more nutrition and guaranteed quality, and can be digested and absorbed by pets at various stages, and the freeze-dried chicken is beaten into freeze-dried chicken and then crushed for later use; putting the pet staple food into a baking box for low-temperature baking, putting the pet staple food and the freeze-dried minced chicken into a particle pressing mold when the water content of the pet staple food baked at low temperature is reduced to 19-21%, and pressing the particle pressing mold filled with the pet staple food and the freeze-dried minced chicken by a hydraulic device to form the pet staple food particles wrapped with the freeze-dried minced chicken; and dehydrating the pet staple food grains wrapped with the freeze-dried minced chicken at low temperature until the water content of the pet staple food grains is reduced to less than 10%. The advantages are that: the low-temperature baked staple food grain produced by the preparation method of wrapping the freeze-dried powder with the low-temperature baked staple food grain not only keeps the fragrance of baked meat, but also has better palatability and more nutrition.
Description
Technical Field
The invention belongs to the technical field of pet foods, and particularly relates to a preparation method of low-temperature baked staple food grain wrapped freeze-dried crumbs.
Background
Pet feeding has a long history in China, and there is a record of raising dogs in the Qin palace in Shiji. In the latter literature, there are also records on dog and cat feeding. With the improvement of living standard, the dogs and cats become an important part of families of people. Through the initial blind breeding, more and more people pay more attention to the health of pets. The feeding mode is changed from the nature to the ground, people pursue professional, scientific and natural feeding, and various pet foods also enter pet families. Fresh meat has strong attraction to pets, so more and more pet foods can freeze-dry the fresh meat and add the frozen fresh meat into staple food grains, so that the palatability and the nutrition of the staple food grains are greatly improved.
In the existing pet staple food, although the processing technology of the pet staple food is different, the freeze-drying addition can only be combined in a mixing mode, for example, the freeze-drying powder and the freeze-drying block are sprayed and mixed; the main disadvantages of this approach are: the pet staple food is characterized in that the freeze-dried powder and the freeze-dried block are combined on the pet staple food by spraying and are positioned on the outer surface of the pet staple food, and the freeze-dried powder and the freeze-dried block are easy to separate from the pet staple food in the production, transportation and use processes; secondly, the master pet food is sprayed and freeze-dried, and the mixed spray-dried powder not only causes the whole master pet food to look unsmooth, but also weakens the freeze-dried taste, even covers the fragrance of the master pet food (if the master pet food is baked food, the freeze-dried food loses the meat fragrance baked by the baked food); thirdly, freeze-drying is pure meat, which is particularly fearing to light, and because the oil in the freeze-dried meat is easy to generate oxidation by illumination, the freeze-drying color becomes dark, the overall food quality is reduced, the palatability is reduced, the nutrition is reduced, and bacteria breeding and the like are possibly generated, so that the staple pet food needs shading storage in the storage and transportation processes, the production cost of the product is increased, in addition, the burden is caused for feeding, the staple pet food is put more at one time, the pet dogs and cats do not eat the staple food in time, and the quality of the staple pet food is reduced.
Disclosure of Invention
The design purpose is as follows: in order to avoid the defects in the background technology, the preparation method of the low-temperature baked staple food wrapped freeze-dried crumbs is designed, wherein the baked meat flavor is kept, the palatability is better, the nutrition is better, the quality is guaranteed, and the low-temperature baked staple food wrapped freeze-dried crumbs can be digested and absorbed by pet dogs and cats at all stages.
The design scheme is as follows: the design purpose is realized.
1. Step one, crushing freeze-dried chicken into freeze-dried chicken pieces for later use; secondly, placing the main pet food into a baking box for low-temperature baking, placing the main pet food and the freeze-dried chicken crumbles into a particle pressing mold when the water content of the main pet food baked at low temperature is reduced to 19% -21%, and then pressing the particle pressing mold filled with the main pet food and the freeze-dried chicken crumbles through a hydraulic device to form main pet food particles wrapped with the freeze-dried chicken crumbles; step three, dehydrating the main pet food grain particles wrapped with the freeze-dried minced chicken at low temperature until the water content of the main pet food grain particles is reduced to less than 10%; and step four, taking out the pet staple food grains with the water content reduced to less than 10% for subpackaging, and performing irradiation sterilization on the subpackaged pet staple food grains, which is one of the technical characteristics of the invention. The purpose of this design is: firstly, the staple pet food is baked at low temperature in the whole process, so that 80% of nutrition can not be lost, the staple pet food baked at low temperature is drier, and the staple pet food has the baked meat flavor; the main pet food particles are formed by compressing main pet food and freeze-dried chicken crumbs, and due to the fact that the palatability of the main pet food particles is better due to the addition of the freeze-dried chicken crumbs (phagostimulants such as cat pulp and chicken liver powder do not need to be sprayed to increase the palatability of the main pet food particles), the whole nutrition of the low-temperature baked main pet food particles is improved; fourthly, the freeze-dried minced chicken is wrapped in the staple food for the pet, so that the meat flavor of the staple food for the pet can be prevented from being lost due to freeze-drying, the wrapped freeze-dried minced chicken can not be irradiated by light, and the grease in the freeze-dried meat is not easy to generate oxidation, so that the problems of deepening of the color of the outer surface, reduction of palatability, reduction of nutrition, breeding of bacteria and the like caused by oxidation of the freeze-dried meat are avoided; fifthly, when the water content of the pet staple food is reduced to 19-21%, the freeze-dried minced chicken is pressed into the pet staple food, and the pet staple food has the water content of about 20% and is in a soft state, and the freeze-dried minced chicken can be compressed into the pet staple food to form pet staple food particles; sixthly, the water content of the staple food grains for the pets is reduced to less than 10 percent, so that the staple food grains can be stored for a long time; seventhly, the low-temperature baked staple food wrapped by the freeze-dried chips is easier to digest and absorb by pets at various stages, namely the low-temperature baked staple food has better digestibility.
2. The pet staple food comprises the following raw materials in parts by weight: the invention is characterized in that the food is prepared from 0.1-0.5% of vitamin, 0.1-0.5% of mineral, 5-9% of vegetable and fruit raw materials and the balance of meat raw materials. The purpose of this design is: the pet staple food comprises the following raw materials of meat raw materials, vegetable and fruit raw materials, vitamins and mineral substances in percentage by weight: 0.1 to 0.5 percent of vitamin, 0.1 to 0.5 percent of mineral substance, 5 to 9 percent of vegetable and fruit raw material and the balance of meat raw material, thus the fresh meat content in the staple food for pets can reach 90 percent or more, and the nutritional basis of the staple food for low-temperature baking is ensured.
3. Before the freeze-dried chicken is smashed into freeze-dried chicken, the freeze-dried chicken is processed into freeze-dried meat blocks of 1cm by 1cm, the freeze-dried meat blocks are stirred into freeze-dried powder, and the main pet food grain particles wrapped with the freeze-dried chicken powder are round particles with the diameter of 8mm and the thickness of 3 mm. The purpose of this design is: before the freeze-dried chicken is smashed into freeze-dried chicken, the freeze-dried chicken is processed into freeze-dried meat blocks of 1cm x 1cm, and then the freeze-dried meat blocks are stirred into freeze-dried fragments, so that all the freeze-dried chicken fragments can meet the specified requirements, and the freeze-dried fragments can be embedded into round low-temperature baked particles with the diameter of 8mm x and the thickness of 3 mm.
4. Putting the pet staple food with the water content reduced to 19% -21% into a lower die of a particle pressing die, then uniformly paving the standby freeze-dried chicken on the pet staple food, and closing an upper die and the lower die of the particle pressing die, wherein circular grooves with the diameter of 8mm and the depth of 3mm are arranged on the die closing surface of the upper die in an array mode, and the die closing surface of the lower die is designed to be a plane. The purpose of this design is: the method comprises the steps of putting pet staple food with the water content reduced to 19% -21% into a lower die of a particle pressing die, then uniformly paving the standby freeze-dried chicken on the pet staple food, and closing an upper die and the lower die of the particle pressing die, wherein circular grooves with the diameter of 8mm and the depth of 3mm are arranged on the closing surface of the upper die in an array mode, and the closing surface of the lower die is a plane, so that circular particles with the diameter of 8mm and the thickness of 3mm, namely pet staple food particles, can be stably produced in batches.
5. The design that the pressure value when the hydraulic device is pressed is 180-250 kg/square is the fifth technical characteristic of the invention. The purpose of this design is: the pressure value of the hydraulic device during pressing is 180-250 kg/square, and the pressure can ensure that the freeze-dried chicken crumbs are pressed into the pet staple food and granules are formed in batches in the granule pressing mold.
6. The method is characterized in that the baking temperature is 50-90 ℃ when the water content of the pet staple food is reduced to 19-21%, the baking temperature is 50 ℃ when the water content of the pet staple food particles wrapped with the freeze-dried minced chicken is reduced to less than 10%, and the baking time is 1 hour. The purpose of this design is: the baking temperature of the pet staple food grain with the water content reduced to 19% -21% is 50-90 ℃, the baking temperature of the pet staple food grain wrapped with the freeze-dried minced chicken is 50 ℃ with the water content reduced to less than 10%, and the baking time is 1 hour, firstly, the freeze-dried minced chicken is pressed into the pet staple food grain with the water content reduced to 19% -21%, at the moment, the pet staple food grain with the water content reduced to about 20% is in a softer state, and the freeze-dried minced chicken can be compressed into the pet staple food grain to form pet staple food grain particles; secondly, the water content of the pet staple food grains can be reduced to less than 10% after the pet staple food grains are baked for 1 hour at the temperature of 50 ℃, so that the pet staple food grains can be stored for a long time, meanwhile, the nutrition of the freeze-dried minced chicken in the pet staple food grains is hardly lost in the baking process, and the palatability is basically kept unchanged.
7. The design that the content of the freeze-dried minced chicken in each 1000 g of pet staple food grain is 40-60 g is seven technical characteristics of the invention. The purpose of this design is: the content of the freeze-dried minced chicken in each 1000 g of main pet food grain particles is 40-60 g, the freeze-dried minced chicken with the content can ensure the forming rate of the main pet food grain particles after the freeze-dried minced chicken is pressed by a particle pressing mould and a hydraulic device with the pressure value of 180-250 kg/square, and simultaneously can ensure that more than 80 percent of the main pet food grain particles contain the freeze-dried minced chicken.
The technical scheme is as follows: a preparation method of low-temperature baked staple food grain coated freeze-dried powder comprises the following steps: step one, beating the freeze-dried chicken into freeze-dried chicken and crushing the freeze-dried chicken for later use; secondly, placing the pet staple food into a baking box for low-temperature baking, placing the pet staple food and the freeze-dried minced chicken into a particle pressing mold when the water content of the pet staple food baked at low temperature is reduced to 19-21%, and then pressing the particle pressing mold filled with the pet staple food and the freeze-dried minced chicken through a hydraulic device to form the pet staple food particles wrapped with the freeze-dried minced chicken; step three, dehydrating the pet staple food grain particles wrapped with the freeze-dried minced chicken at low temperature until the water content of the pet staple food grain particles is reduced to less than 10%; and step four, taking the pet staple food grains with the water content reduced to less than 10% out of a warehouse, subpackaging, and performing irradiation sterilization on the subpackaged pet staple food grains.
Compared with the background art, the low-temperature baked staple food grain produced by the preparation method of wrapping the freeze-dried powder with the low-temperature baked staple food grain not only retains the fragrance of baked meat, but also has better palatability and more nutrition; the low-temperature baked staple food grain produced by the preparation method of wrapping the low-temperature baked staple food grain with the freeze-dried powder has the advantages that the quality is guaranteed, and shading treatment is not needed in the transportation, storage and use processes; thirdly, the low-temperature baked staple food produced by the preparation method of wrapping the freeze-dried powder with the low-temperature baked staple food can be digested and absorbed by pets at various stages, and the digestibility is improved.
Drawings
Figure 1 is a graph of nutrient absorption by kitten feeding.
Figure 2 is a graph of nutrient absorption for adult cats.
Figure 3 is a graph of nutrient absorption for middle aged and senior cats.
Fig. 4 is a schematic diagram of a particle compression mold.
Fig. 5 is a table of information for one of the nine pet cats named florid.
Fig. 6 is a table of feeding information of cat flower.
Fig. 7 is a table view showing nutrient absorption of cat flower.
Detailed Description
Example 1: reference is made to fig. 1-7. A preparation method of freeze-dried powder wrapped by low-temperature baked staple food grains is characterized by comprising the following steps: step one, beating the freeze-dried chicken into freeze-dried chicken and crushing the freeze-dried chicken for later use; secondly, placing the pet staple food into a baking box for low-temperature baking, placing the pet staple food and the freeze-dried minced chicken into a particle pressing mold when the water content of the pet staple food baked at low temperature is reduced to 19-21%, and then pressing the particle pressing mold filled with the pet staple food and the freeze-dried minced chicken through a hydraulic device to form the pet staple food particles wrapped with the freeze-dried minced chicken; step three, dehydrating the main pet food grain particles wrapped with the freeze-dried minced chicken at low temperature until the water content of the main pet food grain particles is reduced to less than 10%; step four, taking out the pet staple food grains with the water content reduced to less than 10% and subpackaging, and performing irradiation sterilization on the subpackaged pet staple food grains; the irradiation sterilization is the prior art for preventing the breeding of bacteria and ensuring the quality of products.
The pet staple food comprises the following raw materials in parts by weight: 0.1 to 0.5 percent of vitamin, 0.1 to 0.5 percent of mineral substance, 5 to 9 percent of vegetable and fruit raw material and the balance of meat raw material. The meat raw material is fresh meat and the fresh meat is one or more of chicken, beef, mutton, duck or pork, namely the meat raw material is one of the chicken, the beef, the mutton, the duck or the pork, or the meat raw material is a mixture of the chicken, the beef, the mutton, the duck or the pork; the vegetable and fruit raw materials comprise Chinese cabbage, cauliflower, spinach, apples, pears and the like, the vitamins mainly comprise vitamin A, vitamin B, vitamin D, vitamin E and vitamin K, and the minerals are mineral salts containing trace elements. The pet staple food is formed by uniformly stirring meat raw materials, vegetable and fruit raw materials, vitamins and mineral substances.
Before the freeze-dried chicken is smashed into freeze-dried chicken, the freeze-dried chicken is processed into freeze-dried meat blocks of 1cm x 1cm, namely the freeze-dried meat blocks are small square blocks with the length, width and height of 1cm, the freeze-dried meat blocks are stirred into freeze-dried powder, and the staple food grains wrapped with the freeze-dried chicken powder are round particles with the diameter of 8mm and the thickness of 3 mm. Preferably, the length, width and height of the freeze-dried minced chicken are less than or equal to 2mm.
Putting the pet staple food with the water content reduced to 19% -21% into a lower die of a particle pressing die, then uniformly paving the standby freeze-dried chicken on the pet staple food, and closing an upper die and a lower die of the particle pressing die, wherein circular grooves with the diameters of 8mm and the depths of 3mm are arranged on a closing surface of the upper die in an array manner, and the closing surface of the lower die is a plane. In addition, the pet staple food with the water content reduced to 19% -21% can be placed into the lower die of the particle pressing die, then the standby freeze-dried chicken is evenly spread on the pet staple food, a layer of pet staple food with the water content reduced to 19% -21% is placed on the freeze-dried chicken crumbled layer, then the upper die and the lower die of the particle pressing die are closed, and therefore the pet staple food particles pressed by the particle pressing die are basically and completely wrapped by the freeze-dried chicken crumbs in the pet staple food particles. The pressure value of the hydraulic device during pressing is 180-250 kg/square, and the hydraulic device per se is the prior art and is not described herein again.
The baking temperature for reducing the water content of the main pet food to 19-21% is 50-90 ℃, the baking temperature for reducing the water content of the main pet food particles wrapped with the freeze-dried minced chicken to less than 10% is 50 ℃, the baking time is 1 hour, the freeze-dried minced chicken is added before the last hour of baking, the water content of the main pet food is about 20% and is in a softer state, the freeze-dried minced chicken can be compressed into the main pet food and forms main pet food particles (realized through a particle pressing mold and a hydraulic device), and the freeze-dried minced chicken is pressed into the main pet food and wrapped in the main pet food, so that the nutrition of the freeze-dried minced chicken can be prevented from being lost again, the appearance color of the freeze-dried minced chicken can be prevented from being discolored due to oxidation, the freeze-dried minced chicken in the particles and the fibrous sense of the meat are kept, and the freeze-drying quality is not influenced. The integral baking time of the pet staple food is not less than 10 hours. The freeze-dried minced chicken content in each 1000 g of the pet staple food grain is 40-60 g. Preferably, the freeze-dried chicken crumb content is 50 grams per 1000 grams of pet staple food particles. After the freeze-dried chicken crumbs with the content are pressed by a particle pressing die and a hydraulic device with the pressure value of 180-250 kg/square, the forming rate of the pet staple food grain particles can be ensured (maintained to be more than 95%), and meanwhile, more than 80% of the pet staple food grain particles contain the freeze-dried chicken crumbs; the content of the freeze-dried minced chicken is more than 60 g, so that the production cost of the main grain for low-temperature baking is greatly increased, the freeze-drying is too much, and the compressed particles are easy to disperse, so that the success rate of hydraulic plasticity is reduced; the content of the freeze-dried minced chicken is less than 40 g, and the number of the prepared pet staple food grains containing the freeze-dried minced chicken is less than 80%, so that the palatability and the nutritional effect of the low-temperature baked staple food are influenced.
The low-temperature baked staple food wrapped in freeze-dried crumbs is tested by feeding, and is found to improve the digestibility of pet dogs and cats in each stage, so that the excrement quantity of the pet dogs and cats is reduced, and the low-temperature baked staple food can play a role in muscle and fat increasing for the pet dogs and cats.
For this purpose, the applicant performed comparative feeding experiments on cats of three ages (kittens (2-8 months old), adult cats (8 months old or older), and middle aged and elderly cats (6 years old)) according to AAFCO experimental standards, wherein each cat of the same age was fed with the original food for four weeks, then fed with the product of the present invention for four weeks, and four-week feeding comparisons were made on the body absorption conditions of cats of the same age before and after the same age, and the recording standard was that the nutrient absorption conditions exhibited by five different parts of the cat body were compared, wherein the basal absorption was 0, and each record (one of the five different parts of the cat body was one), the condition was +1 if good, and the condition was-1 if not good. The nutrient absorption data in figures 1-3 are the expression of different nutrient absorption profiles exhibited by five different parts of the cat body.
The five parts of the cat body were: eyelid, gum and oral tissue, skin condition, hair condition, energy level, to observe the body's absorption of various nutrients of food.
2-8 months old kittens are pets in the growth period, physical functions are in the construction stage, the nutrition absorption condition can show unstable fluctuation, the data of the first two weeks are compared, the two weeks are in a good absorption state, in the third week, the nutrition absorption condition of the product still keeps stable rising, but the absorption condition of the original food is problematic, the condition of poor absorption effect occurs, the rising starts to recover in the fourth week, and the original food is the Kusi cat food.
Adult cats aged more than 8 months are healthy adult pets, the physical function is complete, and the adult cats show a stable and good trend in the aspect of nutrient absorption, and as can be seen from figure 2, the product has small difference in nutrient absorption in the first week and has obviously better nutrient absorption condition than the original food in the next second week.
The body function of the middle-aged and old cats aged over 6 years begins to decline, particularly the digestive system is obviously weakened, the food absorption condition is in a state of being prone, the exercise amount is also reduced, and as can be seen from figure 3, compared with the product of the patent, the time for influencing the middle-aged and old cats is slower, the middle-aged and old cats to start playing the role is obviously increased until the second week, the middle-aged and old cats to start playing the role is stably increased until the third week, the synergistic effect in the body is realized, the middle-aged and old cats to start playing the role of food, the energy performance is obviously improved until the third week, and the energy performance is obviously improved.
To summarize:
compared with feeding tests of 9 pet cats for eight weeks, the average absorption rate of the pet cats is increased from 30% to 45% by feeding the pet cats with the product disclosed by the patent; the frequency of the excrement diarrhea of the pet cats is reduced from 13 times to 5 times; the weight change of pet cats increased by an average of 7%. From the nutrient absorption data table, the nutrient absorption condition of each part of the body to food is good, and the protein, amino acid, vitamin, mineral and trace elements have good assimilation effect on the body. The pet food has obvious improvement effect on pets with problematic intestinal absorption, enhances the immunity of the pets, has obvious increase of body absorption rate and body weight, and reduces the occurrence frequency of diseases. Example 2: based on example 1. The pet staple food comprises the following raw materials in parts by weight: 0.1% of vitamins, 0.1% of minerals, 5% of vegetable and fruit raw materials and 94.8% of meat raw materials.
Example 3: based on the embodiment 1. The pet staple food comprises the following raw materials of meat raw materials, vegetable and fruit raw materials, vitamins and mineral substances in percentage by weight: 0.5% of vitamins, 0.5% of minerals, 5% of vegetable and fruit raw materials and 94% of meat raw materials.
Example 4: based on example 1. The pet staple food comprises the following raw materials in parts by weight: 0.1% of vitamins, 0.1% of minerals, 9% of vegetable and fruit raw materials and 90.8% of meat raw materials.
Example 5: based on example 1. The pet staple food comprises the following raw materials of meat raw materials, vegetable and fruit raw materials, vitamins and mineral substances in percentage by weight: 0.5% of vitamins, 0.5% of minerals, 9% of vegetable and fruit raw materials and 90% of meat raw materials.
Example 6: based on example 1. The pet staple food comprises the following raw materials in parts by weight: 0.1% of vitamins, 0.5% of minerals, 5% of vegetable and fruit raw materials and 94.4% of meat raw materials.
Example 7: based on example 1. The pet staple food comprises the following raw materials in parts by weight: 0.5% of vitamins, 0.1% of minerals, 9% of vegetable and fruit raw materials and 90.4% of meat raw materials.
It is to be understood that: although the above embodiments have described the design idea of the present invention in more detail, these descriptions are only simple descriptions of the design idea of the present invention, and are not limitations of the design idea of the present invention, and any combination, addition, or modification without departing from the design idea of the present invention falls within the scope of the present invention.
Claims (8)
1. A preparation method of freeze-dried powder wrapped by low-temperature baked staple food grains is characterized by comprising the following steps: step one, beating the freeze-dried chicken into freeze-dried chicken and crushing the freeze-dried chicken for later use; secondly, placing the main pet food into a baking box for low-temperature baking, placing the main pet food and the freeze-dried chicken crumbles into a particle pressing mold when the water content of the main pet food baked at low temperature is reduced to 19% -21%, and then pressing the particle pressing mold filled with the main pet food and the freeze-dried chicken crumbles through a hydraulic device to form main pet food particles wrapped with the freeze-dried chicken crumbles; step three, dehydrating the pet staple food grain particles wrapped with the freeze-dried minced chicken at low temperature until the water content of the pet staple food grain particles is reduced to less than 10%; and step four, taking out the pet staple food grains with the water content reduced to less than 10% from a warehouse, subpackaging, and performing irradiation sterilization on the subpackaged pet staple food grains.
2. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1, wherein the method comprises the following steps: the pet staple food comprises the following raw materials in parts by weight: 0.1 to 0.5 percent of vitamin, 0.1 to 0.5 percent of mineral substance, 5 to 9 percent of vegetable and fruit raw material and the balance of meat raw material.
3. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1, wherein the method comprises the following steps: before the freeze-dried chicken is smashed into freeze-dried chicken, the freeze-dried chicken is processed into freeze-dried meat blocks of 1cm by 1cm, the freeze-dried meat blocks are stirred into freeze-dried powder, and the main pet food grain particles wrapped with the freeze-dried chicken powder are round particles with the diameter of 8mm and the thickness of 3 mm.
4. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1, wherein the method comprises the following steps: putting the pet staple food with the water content reduced to 19% -21% into a lower die of a particle pressing die, then uniformly paving the standby freeze-dried chicken on the pet staple food, and closing an upper die and the lower die of the particle pressing die, wherein circular grooves with the diameter of 8mm and the depth of 3mm are arranged on the closing surface of the upper die in an array mode, and the closing surface of the lower die is a plane.
5. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1 or 4, characterized in that: the pressure value of the hydraulic device during pressing is 180-250 kg/square.
6. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1, wherein the method comprises the following steps: the baking temperature for reducing the water content of the pet staple food to 19-21% is 50-90 ℃, the baking temperature for reducing the water content of the particles of the pet staple food wrapped with the freeze-dried minced chicken to less than 10% is 50 ℃, and the baking time is 1 hour.
7. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 1, wherein the method comprises the following steps: the freeze-dried minced chicken content in each 1000 g of the pet staple food grain is 40-60 g.
8. The method for preparing low-temperature baked staple food grain coated freeze-dried crumbs as claimed in claim 7, wherein: the freeze-dried chicken crumb content was 50 grams per 1000 grams of pet staple food granules.
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