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CN-121970835-A - Low-temperature molded edible pet chew and preparation method thereof

CN121970835ACN 121970835 ACN121970835 ACN 121970835ACN-121970835-A

Abstract

The invention relates to the technical field of pet snacks, in particular to a low-temperature formed edible small pet chew and a preparation method thereof, wherein the temperature of a feed cylinder is obviously reduced to 50-100 ℃, the injecting pressure is set to 90-110MPa, and the short pressure maintaining time and the subsequent low-temperature drying at 50-60 ℃ are matched, so that the technical problems of high energy consumption, greatly reduced equipment operating power and effectively reduced production cost caused by the prior art are solved, more importantly, the moderate processing conditions furthest reduce the thermal damage and mechanical damage to nutritional ingredients such as thermosensitive vitamins, active proteins and the like in raw materials, thereby better preserving the nutritional value and natural flavor of the product while forming, realizing the dual aims of reducing the energy consumption and preserving the nutritional ingredients, and the technical problems that the preparation method in the prior art is difficult to reduce the energy consumption and simultaneously preserve the high nutritional ingredients in the product are solved in the manner.

Inventors

  • MAO XIN
  • HU HANG
  • LUO LIN
  • LONG XUE
  • YANG QILING
  • YANG YIN
  • HUO BENSONG

Assignees

  • 重庆思味特宠物用品股份有限公司

Dates

Publication Date
20260505
Application Date
20260210

Claims (8)

  1. 1. A preparation method is characterized in that, Comprises the following steps: the raw materials are taken according to the proportion and placed into a mixer to be fully and uniformly mixed to obtain a mixed material; Putting the mixed material into a hopper of an injection molding machine or a die casting machine, carrying out melting plasticization at a charging barrel temperature of 50-100 ℃, then injecting the molten material into a die cavity at a glue injection pressure of 90-110Mpa, maintaining the pressure for 3-6s, and then cooling and shaping in the die; And (3) placing the molded chewing article crude product into an oven, and drying at the temperature of 50-60 ℃ to obtain the low-temperature molded edible small pet chewing article.
  2. 2. The method of claim 1, wherein, The cooling and shaping time is 40s-100s, the injection molding process is carried out under the protection atmosphere of closed nitrogen, and the oxygen concentration is controlled below 3%.
  3. 3. The method of claim 2, wherein, The drying treatment time is 10-25 hours, and the drying process is divided into two stages: The first stage is that the water content is reduced to 20% -22% after drying at 55-60 ℃; And in the second stage, the water content is slowly dried at 50-55 ℃ until the water content is lower than 16%.
  4. 4. The method according to claim 3, wherein, The drying time is dynamically controlled by adopting an adaptive algorithm, and the algorithm comprises the following steps: monitoring the moisture content and the temperature of products at a plurality of sampling points in the oven in real time; Calculating a suggested drying temperature offset of the second stage according to a difference value between the average moisture content of the product at the end of the first stage of drying and the preset target moisture content of the first stage and the average thickness of the product and a pre-stored mapping relation; calculating the estimated time required by the second stage through a preset dynamics model according to the initial moisture content of the second stage, the target final moisture content and the adjusted drying temperature of the second stage; And when the rate of decrease of the water content of the product in three continuous monitoring periods is lower than the threshold value of the model prediction rate, judging that the drying is finished, and ending the drying process.
  5. 5. A low temperature molded edible pet chew prepared by the method of claim 4, characterized in that, Comprising the following steps: 15% -50% of cereal or modified starch; 20% -60% of a cellulose-rich herbal component; 2% -6% of glycerol; 5% -15% of plant or animal protein powder; 2% -8% of yeast and hydrolysate or extract thereof.
  6. 6. The cryogenically molded edible pet chew of claim 5, it is characterized in that the method is characterized in that, The herbal component rich in cellulose is selected from one or more of herba Medicaginis powder, herba Avenae Fatuae powder, mortierella pulvis, barley grass powder, wheat straw powder, flos Chrysanthemi, and herba Menthae.
  7. 7. The cryogenically molded edible pet chew of claim 6, it is characterized in that the method is characterized in that, The low-temperature molded edible pet chew also comprises 1-4% of natural flavor enhancer, wherein the natural flavor enhancer is selected from at least one or a combination of more of cheese powder, pet phagostimulant and fruit and vegetable powder.
  8. 8. The cryogenically molded edible pet chew of claim 7, it is characterized in that the method is characterized in that, In the grains or the modified starch, the mass ratio of the modified starch is not less than 30%, and the modified starch is pregelatinized starch or acidolysis starch; The plant or animal protein powder is soybean protein isolate, pea protein or chicken powder; the yeast and its hydrolysate or extract are Saccharomyces cerevisiae hydrolysate.

Description

Low-temperature molded edible pet chew and preparation method thereof Technical Field The invention relates to the technical field of pet snacks, in particular to a low-temperature molded edible small pet chew and a preparation method thereof. Background With the rapid development of the pet industry, pet snacks are increasingly abundant in variety and function as an important component of the daily diet of pets. Edible chews, particularly chew products designed for small pets (e.g., hamsters, rabbits, hamsters, rodents, etc.), not only can satisfy the chewing nature of the pet, help to chew teeth, clean the mouth, but also promote the health of the pet by adding nutritional ingredients. At present, edible small pets in the market are mostly prepared by adopting a high-temperature and high-pressure forming process so as to ensure the shape stability and the shelf life of the product. However, in the prior art, the granulating and molding steps of the chewing materials are usually carried out at high temperature of 120-160 ℃ and high pressure of 4-10 MPa, and the power of matched equipment generally reaches 200-400kw/h, so that the energy consumption of production is remarkable, and meanwhile, the degradation loss of heat-sensitive nutritional components such as vitamins, active proteins and the like in the pet snacks is easily caused by a high-temperature and high-pressure environment. In summary, it is difficult to reduce energy consumption and retain high nutritional ingredients in the product in the existing preparation method. Disclosure of Invention The invention aims to provide a low-temperature molded edible small pet chew and a preparation method thereof, which solve the technical problem that the preparation method in the prior art is difficult to reduce energy consumption and simultaneously retain high nutrition in the product. In order to achieve the above object, the present invention provides a preparation method comprising the following steps: the raw materials are taken according to the proportion and placed into a mixer to be fully and uniformly mixed to obtain a mixed material; Putting the mixed material into a hopper of an injection molding machine or a die casting machine, carrying out melting plasticization at a charging barrel temperature of 50-100 ℃, then injecting the molten material into a die cavity at a glue injection pressure of 90-110Mpa, maintaining the pressure for 3-6s, and then cooling and shaping in the die; And (3) placing the molded chewing article crude product into an oven, and drying at the temperature of 50-60 ℃ to obtain the low-temperature molded edible small pet chewing article. The cooling and shaping time is 40s-100s, the injection molding process is carried out under the protection atmosphere of closed nitrogen, and the oxygen concentration is controlled below 3%. Wherein the drying treatment time is 10-25 hours, and the drying process is divided into two stages: The first stage is that the water content is reduced to 20% -22% after drying at 55-60 ℃; And in the second stage, the water content is slowly dried at 50-55 ℃ until the water content is lower than 16%. Wherein, the stoving time adopts adaptive algorithm dynamic control, and this algorithm includes: monitoring the moisture content and the temperature of products at a plurality of sampling points in the oven in real time; Calculating a suggested drying temperature offset of the second stage according to a difference value between the average moisture content of the product at the end of the first stage of drying and the preset target moisture content of the first stage and the average thickness of the product and a pre-stored mapping relation; calculating the estimated time required by the second stage through a preset dynamics model according to the initial moisture content of the second stage, the target final moisture content and the adjusted drying temperature of the second stage; And when the rate of decrease of the water content of the product in three continuous monitoring periods is lower than the threshold value of the model prediction rate, judging that the drying is finished, and ending the drying process. The invention also provides a low-temperature molded edible pet chew prepared by the preparation method, Comprising the following steps: 15% -50% of cereal or modified starch; 20% -60% of a cellulose-rich herbal component; 2% -6% of glycerol; 5% -15% of plant or animal protein powder; 2% -8% of yeast and hydrolysate or extract thereof. Wherein the cellulose-rich herb component is selected from one or more of alfalfa meal, oat grass meal, moxigrass meal, barley grass meal, wheat grass meal, chamomile, peppermint. The low-temperature molded edible pet chew further comprises 1-4% of natural flavor enhancer, wherein the natural flavor enhancer is selected from at least one or a combination of more of cheese powder, pet phagostimulant and fruit and vegetable powder. Wherein, in the grains or the m