CN114631571A - Milk powder for children and preparation method thereof - Google Patents

Milk powder for children and preparation method thereof Download PDF

Info

Publication number
CN114631571A
CN114631571A CN202210143752.8A CN202210143752A CN114631571A CN 114631571 A CN114631571 A CN 114631571A CN 202210143752 A CN202210143752 A CN 202210143752A CN 114631571 A CN114631571 A CN 114631571A
Authority
CN
China
Prior art keywords
children
vitamin
parts
powder
milk powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210143752.8A
Other languages
Chinese (zh)
Inventor
钱浩
孙芳芳
李宝坤
张建
王玉萍
樊哲新
冯云凯
刘凤华
丁晓玲
张艳红
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinjiang Shihezi Huayuan Dairy Industry Co ltd
Original Assignee
Xinjiang Shihezi Huayuan Dairy Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinjiang Shihezi Huayuan Dairy Industry Co ltd filed Critical Xinjiang Shihezi Huayuan Dairy Industry Co ltd
Priority to CN202210143752.8A priority Critical patent/CN114631571A/en
Publication of CN114631571A publication Critical patent/CN114631571A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00—Whey; Whey preparations
    • A23C21/06—Mixtures of whey with milk products or milk components
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00—Whey; Whey preparations
    • A23C21/04—Whey; Whey preparations containing non-milk components as source of fats or proteins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00—Whey; Whey preparations
    • A23C21/08—Whey; Whey preparations containing other organic additives, e.g. vegetable or animal products
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00—Whey; Whey preparations
    • A23C21/10—Whey; Whey preparations containing inorganic additives

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Zoology (AREA)
  • Inorganic Chemistry (AREA)
  • Dairy Products (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

The invention provides a milk powder for children and a preparation method thereof, wherein the milk powder is prepared by mixing main materials such as raw milk, skimmed milk powder, whey powder, vegetable oil, whey protein powder and the like with a vitamin premixing bag, a mineral substance premixing bag and the like, homogenizing, sterilizing at high temperature, concentrating, spray drying and screening powder. The invention takes the dietary nutrition requirements of children and the Amino Acid Scores (AAS) of raw and auxiliary materials as the basis, analyzes the amino acid pattern and combines the nutrient degradation rule to design the formula, simultaneously, the blending of fat comprises the proportion of saturated fatty acid and unsaturated fatty acid, the content of linoleic acid and the proportion of linoleic acid and linolenic acid for optimization, and after production, processing and storage, the children milk powder still contains the nutrients meeting the self nutrition requirements, thereby promoting the physical development of children.

Description

Child milk powder and preparation method thereof
Technical Field
The invention relates to the technical field of milk powder, in particular to children milk powder and a preparation method thereof.
Background
The preschool children 3-6 years old are the golden period of intelligence and physique development, the activity and range of the children are greatly improved in the period, the development and development speed of brain and body organs is accelerated, and particularly the development of bones is an important standard for measuring the healthy development of the children in the growth stage. The lack of any nutrient required by the infant in this period can affect the skeletal development, and can cause a plurality of children's skeletal dysplasia, such as chicken breast, short stature, rickets and the like. Milk is an important component of diets for young children and childhood, and is a recognized important food that meets the nutritional needs of children's diets.
At present, milk powder is divided into three categories according to the nutritional requirements of infants in different development stages: infant formula (0< age > 3 years), child formula (3< age > 6 years) and student formula (more than 6 years). Although the variety of the children formula milk powder in the market is various, due to processing loss and storage loss in the production process, the nutrients in the children formula milk powder eaten by users are insufficient, so that the nutrient intake is insufficient, and the growth and development of children are influenced.
Disclosure of Invention
The invention mainly aims to provide children milk powder and a preparation method thereof, and aims to provide children milk powder meeting the self nutritional requirements of children.
In order to achieve the purpose, the child milk powder provided by the invention comprises the following preparation materials in parts by weight: 15-20 parts of raw milk, 40-45 parts of skim milk powder, 10-15 parts of whey powder, 2-3 parts of whey protein powder, 8-10 parts of syrup, 3.5-4.5 parts of fructo-oligosaccharide, 2-3 parts of galacto-oligosaccharide, 10-12 parts of vegetable oil, 0.2-0.3 part of docosahexaenoic acid, 1-2 parts of calcium carbonate, 0.1-0.2 part of a vitamin premix bag and 0.1-0.2 part of a mineral premix bag.
In one embodiment, the vitamin premix packet comprises vitamin K2 and vitamin D3.
In one embodiment, the vitamin premix bag comprises 20.03 to 0.05 part by weight of vitamin K and 38X 10 parts by weight of vitamin D-9-1.2×10-8And (4) portions are obtained.
In one embodiment, the vitamin premix package further comprises, in parts by weight: vitamin A (1-3). times.10-7Parts by weight, vitamin E (4-7). times.10-9Parts by weight, vitamin C (5-9). times.10-8Preparing; and/or, the mineral premix package comprises the following components in parts by weight: ferrous sulfate 8X 10-9-1.2×10-8Zinc sulfate (5-8) x 10-9And (4) portions are obtained.
In one embodiment, the children's milk powder further comprises dl-alpha-tocopherol acetate and sodium L-ascorbate; and/or the whey powder is desalted whey powder; and/or, the syrup is a solid corn syrup; and/or the vegetable oil is edible vegetable blend oil; and/or the vegetable oil comprises 1, 3-dioleoyl-2-palmitoyl triglyceride.
The invention also provides a preparation method of the children milk powder, which is used for preparing the children milk powder and comprises the following steps:
preparing materials: respectively weighing the preparation materials for later use, and mixing to obtain a mixed material;
sterilization and concentration: after the mixed materials are preheated, sterilizing, and performing triple effect concentration after sterilization; wherein the sterilization temperature is 100-120 ℃, and the sterilization time is 10-25 s;
spray drying: drying in a drying tower;
fluidized bed drying: drying in a fluidized bed, wherein the air inlet temperature of three sections of the fluidized bed is 70-95 ℃, 15-40 ℃ and 15-40 ℃;
powder sieving: and (5) passing the cooled material through a vibrating screen to obtain a primary finished product.
In one embodiment, before the step of dosing, the method comprises the following steps:
preheating raw milk, performing plate exchange heating, separating to obtain cream and skim milk;
sterilizing skim milk;
homogenizing the sterilized skim milk and cream, and sterilizing the homogenized skim milk and the other part of sterilized skim milk to obtain skim milk; wherein the homogenizing temperature is 55-60 deg.C, homogenizing pressure is 18-20Mpa, pasteurization temperature is 85-90 deg.C, and pasteurization time is 10-25 s.
In one embodiment, in the step of dosing, the vitamin premix pack and/or the mineral premix pack and/or the calcium carbonate are dissolved in a nutrient premix cylinder.
In one embodiment, the nutrient premix cylinders comprise a first premix cylinder, a second premix cylinder, and a third premix cylinder, wherein,
the first premixing cylinder is used for dissolving a mineral substance premixing bag, the dissolving temperature is 45-50 ℃, the dissolving time is 20-30min, and the dissolving water amount is 200-280L;
the second premixing cylinder is used for dissolving the vitamin premixing bag, the dissolving temperature is 20-30 ℃, the dissolving time is 5-10min, and the dissolving water amount is 200-280L;
the third premixing cylinder is used for dissolving calcium carbonate, the dissolving temperature is 20-30 ℃, the dissolving time is 10-20min, and the dissolving water amount is 200-280L.
In one embodiment, after the step of sieving, the method further comprises the following steps:
temporary storage: storing the preliminary finished product in a temporary storage powder bin; and/or the presence of a gas in the atmosphere,
dry mixing: carrying out dry mixing operation to obtain a finished product of the children milk powder;
and (6) filling and packaging.
The technical scheme of the invention is that the milk powder is prepared by mixing main materials such as raw milk, skim milk powder, whey powder, vegetable oil, whey protein powder and the like with a vitamin premixing bag, a mineral substance premixing bag and the like, homogenizing, sterilizing at high temperature, concentrating, spray drying and screening powder. The invention takes the dietary nutrition requirements of children and the Amino Acid Scores (AAS) of raw and auxiliary materials as the basis, analyzes the amino acid pattern and combines the nutrient degradation rule to design the formula, simultaneously, the blending of fat comprises the proportion of saturated fatty acid and unsaturated fatty acid, the content of linoleic acid and the proportion of linoleic acid and linolenic acid for optimization, and after production, processing and storage, the children milk powder still contains the nutrients meeting the self nutrition requirements, thereby promoting the physical development of children.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a flow chart of an embodiment of a method for preparing a powdered milk for children according to the present invention;
FIG. 2 is a graph of the average loss rate of each nutrient during the batching phase;
FIG. 3 is a graph showing the average loss rate of nutrients during the sterilization and concentration stages;
FIG. 4 is a graph showing the average loss rate of each nutrient in the spray-drying stage.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides children milk powder.
In the embodiment of the invention, the preparation materials of the children milk powder comprise the following components in parts by weight: 15-20 parts of raw milk, 40-45 parts of skim milk powder, 10-15 parts of whey powder, 2-3 parts of whey protein powder, 8-10 parts of syrup, 3.5-4.5 parts of fructo-oligosaccharide, 2-3 parts of galacto-oligosaccharide, 10-12 parts of vegetable oil, 0.2-0.3 part of docosahexaenoic acid, 1-2 parts of calcium carbonate, 0.1-0.2 part of a vitamin premix bag and 0.1-0.2 part of a mineral premix bag.
The technical scheme of the invention is that the milk powder is prepared by mixing main materials such as raw milk, skim milk powder, whey powder, vegetable oil, whey protein powder and the like with a vitamin premixing bag, a mineral substance premixing bag and the like, homogenizing, sterilizing at high temperature, concentrating, spray drying and screening powder. The invention takes the dietary nutrition requirements of children and the Amino Acid Scores (AAS) of raw and auxiliary materials as the basis, analyzes the amino acid pattern and combines the nutrient degradation rule to design the formula, simultaneously, the blending of fat comprises the proportion of saturated fatty acid and unsaturated fatty acid, the content of linoleic acid and the proportion of linoleic acid and linolenic acid for optimization, and after production, processing and storage, the children milk powder still contains the nutrients meeting the self nutrition requirements, thereby promoting the physical development of children.
Calcium is a nutrient necessary for the growth and development of organs such as children bones and the like, and is also a mineral with the most abundant content in the organism. In the growth period of the skeleton of children, the absorption rate of calcium is as high as 75%, and as the children grow older, the content of bone minerals increases and the absorption rate of calcium decreases. Inadequate calcium intake in childhood can affect bone health and normal development of the body.
To this end, in one embodiment, the vitamin premix package further comprises vitamin K2 and vitamin D3. Vitamin K is a group of fat-soluble vitamins and has the effects of promoting normal blood coagulation activity, bone formation and inhibiting calcification of arteries and soft tissues. Vitamin K2, also called menaquinone, is a form of vitamin K. It is rich in dairy products, eggs and fermented foods, such as cheese, yogurt and natto. Vitamin K2 is an accessory factor of some biochemical pathways in vitamin K-dependent carboxylation reaction, and can promote the formation of activated osteocalcin, and the activated osteocalcin can combine with calcium to help the calcium enter bones to form crystals, improve the degree of bone mineralization and achieve the accumulation of bone density. The vitamin K2, calcium and vitamin D3 can form a golden combination, so that the bone calcium absorption is effectively promoted, the requirement of children on calcium nutrients is met, and the bone development of the children is further promoted.
In one embodiment, the vitamin premix bag comprises 20.03 to 0.05 part by weight of vitamin K and 38X 10 parts by weight of vitamin D-9-1.2×10-8And (4) portions are obtained. If the amount is calculated by ton yield, the vitamin D38-12 mg is produced for each ton of children milk powder. Further, the vitamin D3 is 8.5-9.9mg in ton yield.
In one embodiment, the preparation material of the children milk powder further comprises taurine, and 30-50mg of taurine is produced per ton of children milk powder calculated by ton yield. Furthermore, the taurine is 35-45mg per ton of the children milk powder calculated by the ton yield.
In one embodiment, the vitamin premix package further comprises: vitamin A (1-3). times.10-7Parts by weight, vitamin E (4-7). times.10-9Parts by weight, vitamin C (5-9). times.10-8And (4) portions are obtained. Calculated by the yield per ton, 300mg of vitamin A100-vitamin E4.0-7.0 mg and 50-90mg of vitamin C are produced for each ton of children milk powder. Furthermore, the production of 150-230mg of vitamin A, 4.5-5.8mg of vitamin E and 60-80mg of vitamin C per ton of children milk powder is calculated according to the ton yield.
In one embodiment, the mineral premix package comprises, in parts by weight: ferrous sulfate 8X 10-9-1.2 ×10-8Zinc sulfate (5-8) x 10-9And (4) portions are obtained. Calculated by the output per ton, the produced children milk powder contains 8.0-12.0mg of ferrous sulfate and 5.0-8.0mg of zinc sulfate. Furthermore, calculated by the output per ton, 9.0-10.5mg of ferrous sulfate and 5.5-7.0mg of zinc sulfate are produced for each ton of children milk powder.
Example 1 design of base formula
1. The contents of macronutrients, amino acids, vitamins, minerals and fatty acids in the raw and auxiliary materials used for producing the children milk powder are measured to establish an amino acid model, which is shown in tables 1 to 5.
TABLE 1 Macro-nutrient content of raw and auxiliary materials
Figure BDA0003506579310000051
TABLE 2 amino acid content and mode of raw and auxiliary materials
Figure BDA0003506579310000061
TABLE 3 vitamin content of raw and auxiliary materials
Figure BDA0003506579310000062
TABLE 4 mineral content of raw and auxiliary materials
Figure BDA0003506579310000071
TABLE 5 raw and auxiliary materials fat and fatty acid content
Figure BDA0003506579310000072
2. The requirements of macronutrients, amino acids, fatty acids, vitamins and minerals of children of 3-6 years old in the dietary nutrient reference intake guide of Chinese residents are inquired, and are specifically shown in tables 6-10.
TABLE 63-6 years old children macronutrient recommended intake (g/day)
Figure BDA0003506579310000073
TABLE 7 average requirement of essential amino acids for children mg/(kg. day)
Figure BDA0003506579310000081
TABLE 8 vitamin requirements for children
Figure BDA0003506579310000082
TABLE 9 mineral intake (mg/day) for children
Figure BDA0003506579310000083
TABLE 10 reference intake of fatty acids DRIs for children
Figure BDA0003506579310000084
3. The basic formula is designed according to the contents of various nutrients, amino acids, vitamins, minerals and fatty acids in the raw and auxiliary materials and in combination with the nutritional requirements of children, and is specifically shown in table 11.
TABLE 11 content of each component in the basic formulation
Figure BDA0003506579310000091
In the design of protein content in combination with the above table, protein was added to food other than milk powder, which is generally consumed by children over 6 years old, in consideration of the fact that children eat supplementary food in order to ensure protein intake in children, and the protein content was in the range of 20.0 to 30.0 g. Similarly, the range of fat and vitamin A is 10.0-20.0g, 200.0-250.0 μ gRE respectively. In order to ensure the intake of vitamin D, E, C, K for children and promote the absorption of calcium, the values are respectively 9.0-10.0 mug, 7.0-10.0mg alpha-TE, 100.0-130.0mg and 40.0-70.0 mug. And sodium is taken from food, so the range of sodium is 350.0-600.0 mg; the calcium, iron and zinc are indispensable nutrients for the growth and development of children, and the ranges of the calcium, the iron and the zinc are 600.0-1200.0mg, 9.0-15.0mg and 4.00-8.0mg respectively.
EXAMPLE 2 preparation of Children's formula
The children milk powder comprises the following preparation materials in parts by weight: 15-20 parts of raw milk, 40-45 parts of skim milk powder, 10-15 parts of whey powder, 2-3 parts of whey protein powder, 8-10 parts of syrup, 3.5-4.5 parts of fructo-oligosaccharide, 2-3 parts of galacto-oligosaccharide, 10-12 parts of vegetable oil, 0.2-0.3 part of docosahexaenoic acid, 1-2 parts of calcium carbonate, 0.1-0.2 part of a vitamin premix bag and 0.1-0.2 part of a mineral premix bag.
Further, the children milk powder comprises the following components (in ton yield) in parts by weight: 15-20 parts of raw milk, 40-45 parts of skim milk powder, 10-15 parts of desalted whey powder, 2-3 parts of whey protein powder, 8-9 parts of solid corn syrup, 3.5-4.5 parts of fructo-oligosaccharide, 2-3 parts of galacto-oligosaccharide, 0.2-0.3 part of docosahexaenoic acid (DHA), 10-12 parts of edible plant blend oil (containing 1, 3-dioleate-2-palmitic acid triglyceride, OPO for short), 1-2 parts of calcium carbonate, 20.03-0.05 part of vitamin K, 0.1-0.2 part of vitamin premix package and 0.1-0.2 part of mineral premix package; wherein the vitamin premix bag contains 200.00mg of vitamin A, 39.75mg of vitamin D, 5.00mg of vitamin E, 70.00mg of vitamin C and 40.00mg of taurine; the mineral premix comprises 9.47mg of ferrous sulfate and 6.00mg of zinc sulfate. Further, in one embodiment, the vitamin premix package further comprises dl-alpha-tocopherol acetate and sodium L-ascorbate.
A preparation method of milk powder is used for preparing the children milk powder and comprises the following steps:
pretreatment: the raw and auxiliary materials are subjected to unpacking, inner package sterilization and sterilization;
preparing materials: respectively weighing the preparation materials for later use, and mixing to obtain a mixed material;
sterilization and concentration: after the mixed materials are preheated, sterilizing, and performing triple effect concentration after sterilization; wherein the sterilization temperature is 100-120 ℃, and the sterilization time is 10-25 s;
spray drying: the material enters a drying tower from a thick milk tank for drying; wherein the air inlet temperature of spray drying is 150-170 ℃, and the air outlet temperature is 75-95 ℃;
fluidized bed drying: drying in a fluidized bed, wherein the air inlet temperature of three sections of the fluidized bed is 70-95 ℃, 15-40 ℃ and 15-40 ℃; after fluidized bed drying, the powder outlet temperature is less than or equal to 40 ℃, and the water content is less than or equal to 4.5%;
powder sieving: and (4) passing the cooled material through a vibrating screen to obtain a primary finished product.
Specifically, in the pretreatment step, the raw and auxiliary materials can be subjected to external package removal in a package removal room, then the internal package is sterilized, and the internal package passes through a sterilization tunnel.
In the step of proportioning, the powder materials (skimmed milk powder, desalted whey powder, whey protein powder, fructo-oligosaccharide and galacto-oligosaccharide) can be weighed and then mixed, and the oil materials (raw milk, solid corn syrup, docosahexaenoic acid, edible vegetable blend oil and vitamin K2) can be preheated to 55-60 ℃ firstly and then stirred and mixed with the powder materials. This powder can adopt vacuum material loading machine to carry out the material loading, transports the vacuum blendor, and the oil can use the diaphragm pump to carry to the vacuum blendor. In addition, the nutrients can be dissolved in the nutrient premixing cylinder respectively.
The nutrient premixing cylinder comprises a first premixing cylinder, a second premixing cylinder and a third premixing cylinder, wherein the first premixing cylinder is used for dissolving a mineral substance premixing bag, potassium citrate and citric acid, the dissolving temperature is 45-50 ℃, the dissolving time is 20-30min, and the dissolving water amount is 200-280L; the second premixing cylinder is used for dissolving the vitamin premixing bag, the dissolving temperature is 20-30 ℃, the dissolving time is 5-10min, and the dissolving water amount is 200-280L; the third premixing cylinder is used for dissolving calcium carbonate, the dissolving temperature is 20-30 ℃, the dissolving time is 10-20min, and the dissolving water amount is 200-280L.
In the sterilization and concentration step, in one embodiment, the sterilization temperature is 110 ℃ and the sterilization time is 15 s. The mixed materials can be buffered in a balance cylinder, preheated by a preheater and then sterilized and concentrated. The triple effect concentration sequence comprises a first effect, a third effect and a second effect, and specifically comprises the following steps: the first effect pressure is-0.06-0.08 Mpa, and the first effect temperature is 60-70 ℃; the double-effect pressure is-0.07-0.09 Mpa, and the double-effect temperature is 50-60 ℃; the triple effect pressure is-0.08 +/-0.10 MPa, and the triple effect temperature is 40-50 ℃. After the three effect bodies are concentrated, the discharge density is 1.07-1.10g/cm3. Further, in one embodimentIn, triple effect concentration includes: the first effect pressure is-0.07 +/-0.005 Mpa, and the first effect temperature is 60-70 ℃; the double-effect pressure is-0.08 +/-0.005 Mpa, and the double-effect temperature is 50-60 ℃; the triple effect pressure is-0.09 +/-0.005 MPa, and the triple effect temperature is 40-50 ℃.
In the step of sieving the powder, the mesh number of the vibrating sieve is 10 meshes, so that the granularity of the milk powder is uniform, and the impurity powder is removed.
According to the physiological and living characteristics and the nutritional requirements and intake characteristics of children, the formula child milk powder for helping the normal growth and development of children is prepared by taking raw milk as a main raw material according to the dietary nutrient intake recommended in the Chinese resident dietary nutrient reference intake and adding and strengthening various daily required nutrient elements and certain specific functional nutrients by using a wet process.
In one embodiment, before the step of dosing, the method comprises the following steps:
preheating raw milk, performing plate exchange heating, separating to obtain cream and skim milk;
sterilizing the skim milk;
homogenizing the sterilized skim milk with cream, and sterilizing the homogenized skim milk and the other sterilized skim milk to obtain skim milk; wherein the homogenizing temperature is 55-60 deg.C, homogenizing pressure is 18-20Mpa, pasteurization temperature is 85-90 deg.C, and pasteurization time is 10-25 s.
Specifically, the temperature of the raw milk is reduced to 0-4 ℃ within 2 hours after milking, and the temperature is kept. After quality inspection, removing impurities from the qualified raw milk by a duplex filter, and then placing the raw milk in a temporary storage tank for temporary storage; wherein the temporary storage temperature is less than or equal to 7 ℃, and the temporary storage time is not more than 24 hours. After raw milk is fed, the raw milk passes through a balance cylinder, and then is preheated and plate-exchanging heated.
The raw milk can be separated by a separator to separate cream and skim milk for fat removal. The skim milk can be sterilized by a spore sterilization machine to remove impurities, bacteria and spore microorganisms. The sterilized skim milk is homogenized with cream, and the suspension stability is increased by mechanical high shear. After pasteurization, the skim milk is put into a plate, cooled and stored in a milk bin, wherein the temperature of the milk bin can be 0-8 ℃. It will be appreciated that skim milk is mixed with other preparation materials to perform the batching operation.
Referring to fig. 1, after the step of sieving, the following steps may be further included:
temporary storage: storing the preliminary finished product in a temporary storage powder bin;
dry mixing: performing dry mixing operation to obtain a finished product of the children milk powder;
and (6) filling and packaging.
After obtaining the primary finished product, storing the product in a temporary storage powder bin, or directly performing dry mixing, filling and packaging; or storing in a temporary powder storage bin, and then dry-mixing, filling and packaging. The temporary powder storage bin can be a movable powder storage bin. The temporary storage step can be used for packaging the primary finished product, particularly sterilizing and disinfecting the inner package firstly, and then quantitatively packaging, wherein the primary finished product can be packaged into a big bag of 25kg, and the temporary storage time is not more than 24 hours.
In the dry mixing step, dry mixing is carried out on line, a vacuum feeding machine can be used for conveying the preliminary finished products temporarily stored in the powder bin to a dumping station, and the materials of the dumping station are conveyed to a metering bin in vacuum through the vacuum feeding machine for dry mixing to obtain the finished product of the children milk powder. Before primary finished product unpacking, a dust collector can be used for removing dust from the package; the dry mixing has the premixing rotating speed of 29-31r/min and the premixing time of 300 s.
In filling and packaging, the finished product of the children milk powder is verified before packaging, the metal detector is verified to be normal, online metal detection is carried out, and the product is conveyed to a corresponding packaging machine through a pipeline to be packaged, sealed, sprayed with a code and boxed. In the metal detection, whether metal foreign matters are mixed in a finished product or not is detected, wherein the diameter of a white ball green-shaped nonferrous small ball is 1.2mm, the diameter of a white ball red-shaped small iron ball is 1.0mm, and the diameter of a white ball blue-shaped stainless steel small ball is 1.5 mm.
Example 3 variation in nutrient loss during processing
1. Loss of nutrients during the dosing phase
After blending, the nutrients of the blended material were tested and the loss rate was calculated and the results are shown in table 12.
TABLE 12 content of each component in the mixture
Figure BDA0003506579310000121
Figure BDA0003506579310000131
According to table 12, a graph of the mean loss rate of nutrients during the dosing phase is obtained, as detailed in fig. 2. Wherein, the loss is most vitamin C, mineral iron and mineral sodium, and the average loss rate is 20.7%, 12.4% and 23.3% respectively.
2. Loss of nutrients during the sterilization and concentration phases
After the mixed material is sterilized and concentrated, the content of each nutrient in the mixed material is detected, and the corresponding loss rate is calculated, and the result is shown in table 13.
TABLE 13 content of each component in the sterilized and concentrated mixture
Figure BDA0003506579310000132
Figure BDA0003506579310000141
According to table 13, a graph of the mean loss rate of nutrients during the sterilization and concentration phases was obtained, as detailed in fig. 3. Wherein the loss is most vitamin A, vitamin D and vitamin C, and the average loss rates are respectively 7.1%, 7.3% and 20.6%.
3. Loss of nutrients during spray drying
After spray drying, the content of each nutrient was measured and the corresponding loss rate was calculated, and the results are shown in table 14.
TABLE 14 content of the components in the mixture after the spray drying stage
Figure BDA0003506579310000142
Figure BDA0003506579310000151
A graph of the mean loss rate of nutrients during the spray drying stage was obtained according to table 14 and is detailed in figure 4. Wherein the loss rate is most vitamin A, vitamin E and vitamin C, and the average loss rate is 7.4%, 19.1% and 34.9% respectively.
4. Loss of nutrients in finished children's milk powder
After the shelf life (shelf life) of the finished product of the children milk powder is over, the content of each nutrient is detected to obtain a detection value of the finished product, and the detection value of the finished product is compared with a theoretical value, and the result is shown in table 15.
TABLE 15 comparison table of contents of various components in children milk powder finished product
Figure BDA0003506579310000152
According to table 15, the content values of the components in the finished product of the children milk powder include theoretical values, range values of a basic formula, detection values of the finished product and label values, wherein the label values are dietary nutrient intake recommended in the dietary nutrient reference intake of Chinese residents, and the theoretical values are obtained according to actual addition amount, processing loss, shelf life loss and test deviation.
Most of detection values of finished products of the children milk powder nutrient are larger than or equal to the label value, so that the children's nutritional requirements are met, and the children's absorption of calcium is promoted. Comparing the theoretical value with the detection value of the finished product, wherein the detection values of the finished product of protein, fat, DHA, vitamin A, OPO and calcium are all larger than the theoretical value, which shows that the loss of protein, fat, DHA, vitamin A, OPO and calcium is little; and the detection values of the finished products of vitamin D, vitamin E, vitamin K2, vitamin C, taurine, iron and zinc are lower than the theoretical values, which indicate that the corresponding nutrients are lost, but are also higher than the corresponding label values. In addition, although the finished product detection value of sodium is lower than the theoretical value and the label value, the finished product detection value also conforms to the national standard, and the coincidence degree of the finished product detection value with the theoretical value and the formula value is not enough, because the theoretical value and the label value are determined by obtaining the average value for accounting and are not strengthened, all the results are from the content of the raw materials, and the deviation is normal.
According to the invention, based on the requirements of children development and nutritional diet, and in combination with the nutrient degradation rule, the amino acid composition in the formula powder is analyzed by Amino Acid Score (AAS) and essential amino acid index for protein blending and amino acid mode, and compared with the recommended composition of children amino acid requirement, the fat blending comprises the proportion of saturated fatty acid and unsaturated fatty acid, linoleic acid content and linoleic acid and linolenic acid proportion, optimization is carried out, and meanwhile, a proper amount of vitamin K2 is added, so that the children milk powder has the effect of promoting the development of children bones, and the normal growth and development of children are ensured.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The children milk powder is characterized in that the preparation materials comprise the following components in parts by weight: 15-20 parts of raw milk, 40-45 parts of skim milk powder, 10-15 parts of whey powder, 2-3 parts of whey protein powder, 8-10 parts of syrup, 3.5-4.5 parts of fructo-oligosaccharide, 2-3 parts of galacto-oligosaccharide, 10-12 parts of vegetable oil, 0.2-0.3 part of docosahexaenoic acid, 1-2 parts of calcium carbonate, 0.1-0.2 part of a vitamin premix bag and 0.1-0.2 part of a mineral premix bag.
2. The children's milk powder of claim 1, wherein the vitamin premix package comprises vitamin K2 and vitamin D3.
3. The children's milk powder of claim 2, wherein the amount is in parts by weightIn the vitamin premix bag, 20.03 to 0.05 part of vitamin K and 38X 10 parts of vitamin D-9-1.2×10-8And (4) portions are obtained.
4. The children's milk powder of claim 3, wherein the vitamin premix package further comprises, in parts by weight: vitamin A (1-3). times.10-7Parts by weight, vitamin E (4-7). times.10-9Parts, vitamin C (5-9) x 10-8Preparing; and/or the presence of a gas in the atmosphere,
the mineral substance premix package comprises the following components in parts by weight: ferrous sulfate 8X 10-9-1.2×10-8Zinc sulfate (5-8) x 10-9And (4) portions are obtained.
5. The children's milk powder of any one of claims 1 to 4, further comprising dl-alpha-tocopherol acetate and sodium L-ascorbate; and/or the presence of a gas in the gas,
the whey powder is desalted whey powder; and/or the presence of a gas in the gas,
the syrup is solid corn syrup; and/or the presence of a gas in the gas,
the vegetable oil is edible vegetable blend oil; and/or the presence of a gas in the gas,
the vegetable oil contains 1, 3-dioleoyl-2-palmitic acid triglyceride.
6. A process for preparing a children's milk powder, for preparing a children's milk powder according to claims 1 to 5, comprising the steps of:
preparing materials: respectively weighing the preparation materials for later use, and mixing to obtain a mixed material;
sterilization and concentration: after the mixed materials are preheated, sterilizing, and performing triple effect concentration after sterilization; wherein the sterilization temperature is 100-120 ℃, and the sterilization time is 10-25 s;
spray drying: drying in a drying tower;
fluidized bed drying: drying in a fluidized bed, wherein the air inlet temperature of three sections of the fluidized bed is 70-95 ℃, 15-40 ℃ and 15-40 ℃;
screening powder: and (4) passing the cooled material through a vibrating screen to obtain a primary finished product.
7. The method for preparing children's milk powder according to claim 6, wherein the step of preparing ingredients is preceded by the steps of:
preheating raw milk, performing plate exchange heating, separating to obtain cream and skim milk;
sterilizing skim milk;
homogenizing the sterilized skim milk with cream, and sterilizing the homogenized skim milk and the other sterilized skim milk to obtain skim milk; wherein the homogenizing temperature is 55-60 deg.C, homogenizing pressure is 18-20Mpa, pasteurization temperature is 85-90 deg.C, and pasteurization time is 10-25 s.
8. The method for preparing children's milk powder according to claim 6, wherein in the step of compounding, the vitamin premix pack and/or the mineral premix pack and/or the calcium carbonate are dissolved in the nutrient premix cylinder.
9. The method of preparing children's milk powder of claim 8, wherein the nutrient pre-mixing cylinders comprise a first pre-mixing cylinder, a second pre-mixing cylinder, and a third pre-mixing cylinder, wherein,
the first premixing cylinder is used for dissolving a mineral substance premixing bag, the dissolving temperature is 45-50 ℃, the dissolving time is 20-30min, and the dissolving water amount is 200-280L;
the second premixing cylinder is used for dissolving the vitamin premixing bag, the dissolving temperature is 20-30 ℃, the dissolving time is 5-10min, and the dissolving water amount is 200-280L;
the third premixing cylinder is used for dissolving calcium carbonate, the dissolving temperature is 20-30 ℃, the dissolving time is 10-20min, and the dissolving water amount is 200-280L.
10. The method for preparing children's milk powder according to claim 7, further comprising the following steps after the step of sieving the powder:
temporary storage: storing the preliminary finished product in a temporary storage powder bin; and/or the presence of a gas in the atmosphere,
dry mixing: carrying out dry mixing operation to obtain a finished product of the children milk powder;
and (6) filling and packaging.
CN202210143752.8A 2022-02-16 2022-02-16 Milk powder for children and preparation method thereof Pending CN114631571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210143752.8A CN114631571A (en) 2022-02-16 2022-02-16 Milk powder for children and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210143752.8A CN114631571A (en) 2022-02-16 2022-02-16 Milk powder for children and preparation method thereof

Publications (1)

Publication Number Publication Date
CN114631571A true CN114631571A (en) 2022-06-17

Family

ID=81945742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210143752.8A Pending CN114631571A (en) 2022-02-16 2022-02-16 Milk powder for children and preparation method thereof

Country Status (1)

Country Link
CN (1) CN114631571A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104012657A (en) * 2014-05-21 2014-09-03 澳优乳业（中国）有限公司 Amino acid humanized infant formula milk powder and preparation method thereof
CN109287759A (en) * 2018-11-21 2019-02-01 上海育博营养食品有限公司 A kind of formula milk and production method helping child height development
CN110786388A (en) * 2019-11-29 2020-02-14 成都桥然生物科技有限公司 Milk powder for promoting growth of children and preparation method thereof
CN111616232A (en) * 2020-06-12 2020-09-04 北安宜品努卡乳业有限公司 Children milk powder for promoting bone growth and preparation method thereof
CN112772722A (en) * 2021-01-07 2021-05-11 上海英贝康母婴用品有限公司 Formula and production method of milk powder for helping skeleton and height development of children

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104012657A (en) * 2014-05-21 2014-09-03 澳优乳业（中国）有限公司 Amino acid humanized infant formula milk powder and preparation method thereof
CN109287759A (en) * 2018-11-21 2019-02-01 上海育博营养食品有限公司 A kind of formula milk and production method helping child height development
CN110786388A (en) * 2019-11-29 2020-02-14 成都桥然生物科技有限公司 Milk powder for promoting growth of children and preparation method thereof
CN111616232A (en) * 2020-06-12 2020-09-04 北安宜品努卡乳业有限公司 Children milk powder for promoting bone growth and preparation method thereof
CN112772722A (en) * 2021-01-07 2021-05-11 上海英贝康母婴用品有限公司 Formula and production method of milk powder for helping skeleton and height development of children

Similar Documents

Publication Publication Date Title
CN104757123A (en) Full dry-mixing infant formula milk powder and preparation method of full dry-mixing infant formula milk powder
CN102429136A (en) Fat lamb concentrate supplement
CN110786388A (en) Milk powder for promoting growth of children and preparation method thereof
CN108294112B (en) Infant formula with optimized protein and amino acid patterns and preparation method thereof
CN101036485A (en) Wheat germ sour milk and the technique of preparing the same
CN109156535A (en) A kind of maternal nutritional product and its production technology
CN112772722A (en) Formula and production method of milk powder for helping skeleton and height development of children
CN109820092A (en) A kind of feed addictive for improving sow bone strength, improving sow reproductive performance
CN106417669A (en) Modified milk powder with desalted goat whey powder added and production method of modified milk
CN110063371A (en) A kind of infant formula goat milk powder and its production method
CN101427792A (en) Liquid milk with additive arachidonic acid (AA) suitable for baby of 6 to 12 months old
CN105613972A (en) Vitamin B2 enriched egg production method
CN101690591A (en) Yak marrow polypeptide bone growing and height increasing tablets (powder)
CN109156530A (en) A kind of diatery supplement nutrition packet and its production technology
CN106720370A (en) A kind of person in middle and old age&#39;s milk powder containing oryzanol and preparation method thereof
CN109287874A (en) For promoting the additive and its preparation method and application of ruminant cub growth and development
CN105639461A (en) Supplementary food nutritional supplement and preparation method thereof
CN112471260A (en) Organic formula milk powder for improving human immunity and preparation method thereof
CN112471259A (en) Formula milk powder for promoting growth of height of children and preparation method thereof
CN114631571A (en) Milk powder for children and preparation method thereof
CN112056404A (en) Formula milk powder for pregnant women and preparation method thereof
CN113678898A (en) Milk powder beneficial to development and growth of children and preparation method thereof
CN112841310A (en) Newborn formula liquid milk and preparation method thereof
CN109527093A (en) A kind of infant nutrient packet special diet product and preparation method thereof
CN112889929B (en) Preparation method and formula of milk powder for promoting height development of children

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination