CN101313702B - Liquid milk for baby of 6 to 12 months ages and preparation method with ejection type direct disinfection - Google Patents
Liquid milk for baby of 6 to 12 months ages and preparation method with ejection type direct disinfection Download PDFInfo
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- CN101313702B CN101313702B CN2008101278998A CN200810127899A CN101313702B CN 101313702 B CN101313702 B CN 101313702B CN 2008101278998 A CN2008101278998 A CN 2008101278998A CN 200810127899 A CN200810127899 A CN 200810127899A CN 101313702 B CN101313702 B CN 101313702B
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- milk
- vitamin
- powder
- mixing tank
- mixing
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- 239000007788 liquid Substances 0.000 title claims abstract description 35
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Landscapes
- Dairy Products (AREA)
Abstract
The invention relates to milk and a preparation method thereof, in particular to liquid milk which uses a UHT steam injection type direct sterilization technology and is applicable to infants between 6 and 12 months. The invention belongs to the milk product technical field. The liquid infant milk comprises the following compositions: 400 to 600Kg of milk, 10 to 50Kg of defatted milk, 2 to 10Kg of concentrated lactalbumin 34 (the content of lactalbumin is 33 percent), 5 to 20Kg of desalted whey powder D70 (the content of the lactalbumin is 12 percent), 10 to 50Kg of vegetable fat powder, 3 to10Kg of saccharose, 5 to 20Kg of dextrine, 100 to 500g of compound vitamin, 200 to 600g of compound mineral matter, 1 to 8Kg of stabilizer, and 200 to 500Kg of water. The liquid infant milk has balanced nutrition, exquisite taste, and easy absorption, and can satisfy the needs of the growing infants.
Description
Technical Field
The invention relates to milk and a preparation method thereof, in particular to liquid milk which uses UHT steam direct sterilization technology and is suitable for infants between 6 and 12 months and a preparation method thereof by using injection type direct sterilization. Belongs to the technical field of dairy products.
Background
The infant stage is a period of great significance in human life, and breast milk is undoubtedly the most ideal natural food for infants. However, breast milk is not ideal for work, occupation, disease, etc. According to the related data, the breast-feeding rate of infants between 6 and 12 months in China is shown as follows: the city is about 12 percent, and the countryside is about 50 percent. At present, the infant milk replacer in the market of China has limited varieties and incomplete nutritional ingredients, so that the production of reasonable infant milk replacers suitable for the growth and development of infants is urgent.
For infants, the best food is breast milk, which contains nutrients necessary for infant growth and ingredients to enhance the infant's immunity. However, in society today, many lactating women often fail to provide adequate breast milk to their infants for a variety of reasons, and we have to find a way to obtain a substitute for breast milk in a manner that will replace it.
Milk is the most nearly perfect food which can be obtained from nature by people so far, and not only can provide high-quality animal protein, milk fat, vitamins and the like required by the growth and development of the body and the brain of people, but also can be the best choice for supplementing calcium to the human body.
However, breast milk differs greatly from cow's milk in its composition, for example, fatty acid composition differs greatly from breast milk, and it lacks linoleic acid and linolenic acid, and also lacks ARA and DHA. In the prior art, a lot of infant milk powder is required to be close to breast milk, so people are constantly exploring and striving to make the component proportion of the infant milk powder closer to the breast milk from the aspects of components and functions.
Meanwhile, in the existing society, the rhythm of life of people is faster, and the problems of wrong proportion, pollution and the like easily occur due to the fact that cooled boiled water is used for making milk powder for infants. Therefore, people are always striving to obtain baby liquid milk to replace baby milk powder to some extent. However, for technical reasons, there are problems such as precipitation of proteins in infant liquid milk at the time of sterilization.
Disclosure of Invention
[ OBJECTS OF THE INVENTION ]
The purpose of the invention is as follows: the invention discloses liquid milk suitable for infants of 6 to 12 months old, which not only can meet the nutritional requirements of the infants, but also is convenient and easy to use, and can keep the stability of liquid properties.
The invention aims to take fresh cow milk (or reconstituted milk), concentrated whey protein, desalted whey powder, lactose, vegetable fat powder, compound vitamin, compound mineral substance, emulsion stabilizer and the like as raw materials according to the nutritional composition of infants and breast milk, select an aseptic online adding technology, increase the whey protein according to the proportion of breast milk components, and ensure that the proportion of casein and whey protein is close to that of the breast milk and is easy to be digested and absorbed by babies; lactose was added to supplement the carbohydrate. The formula designed by the invention ensures that the nutrient components of the liquid milk are more reasonable so as to meet the healthy growth and development of infants. Compared with fresh milk and common milk powder, the product has the advantages of scientific nutrition proportion, fragrant and strong flavor and convenient eating. The baby milk designed by the invention is suitable for 6-12 months babies to eat.
[ technical contents ]
The product of the invention is realized by the following steps:
liquid milk suitable for 6 to 12-month-old infants is characterized in that: wherein: 400Kg of milk, 10 to 50Kg of skimmed milk, 2 to 10Kg of concentrated whey protein 34 (whey protein content 33%), 5 to 20Kg of desalted whey powder D70 (whey protein content 12%), 10 to 50Kg of vegetable fat powder, 3 to 10Kg of sucrose, 5 to 20Kg of dextrin, 100 Kg of vitamin complex, 200 Kg to 600g of complex mineral, 1 Kg to 8Kg of stabilizer, and 200 Kg of water.
The reconstituted milk refers to a dairy product which is produced by reconstituting whole milk powder, skim milk powder or cream with water and is similar to a liquid milk component.
The above-mentioned whey protein is added in such a ratio that the ratio of whey protein to casein in the final product is in the range of (1: 1) to (1: 3), preferably 1: 2.
The above concentrated whey protein 34 is selected from: the whey protein is produced by carrying out membrane treatment, evaporation, concentration and spray drying on whey, the content of the whey protein is more than or equal to 33 percent, and the heat stability is good.
In order to stabilize the properties of the final product of the infant liquid milk, the production processes of the concentrated whey protein 34 and the desalted whey powder D70 are respectively as follows:
preparation of concentrated whey protein 34:
pretreatment of whey
Firstly, removing bacterial starter cells in whey by adopting an automatic slag discharge and centrifugal separator;
② whey ultrafiltration
A suitable temperature for ultrafiltration is 50 deg.C (up to 55 deg.C). For products with protein content over 60-65%, heavy filtration is necessary.
(iii) drying
The trapped fluid after ultrafiltration needs to be stored under the refrigeration condition (4 ℃), and the trapped fluid can be subjected to heat treatment at 66-72 ℃ for 15s, so that the total number of bacteria can be reduced.
Said desalted whey powder is selected from: the protein is produced by carrying out membrane treatment, evaporation, concentration and spray drying on whey, wherein the content of whey protein is more than or equal to 12 percent, the ash content is less than or equal to 0.1 percent, and the heat stability is good.
The production process of the desalted whey powder D70 is as follows:
pretreatment of whey → desalination → sterilization → concentration → pre-crystallization of lactose → spray drying (roller drying) → cooling → sifting powder → packaging
The technical points are as follows:
pretreatment of whey
The casein particles in the whey are first removed and then the fat and the residue in the whey are separated and removed.
② desalting
Whey desalination is commonly carried out by an ion exchange resin method and an electrodialysis method using an ion exchange membrane.
③ Disinfection
The sterilization conditions were 85 ℃ for 15 s.
Fourthly, concentration
Concentrating whey to dry matter concentration of about 30%, and concentrating with another set of evaporator to final desired concentration
Pre-crystallization of lactose
Keeping the temperature of the mixture in a crystallization cylinder at about 20 ℃ for 3-4 h, and controlling the stirring speed at about 10r/min
Spray drying (or roller drying)
The advantages are that: the above proportion is the invention point of the invention, because the liquid baby milk will be heated in the final sterilization, the protein will produce the phenomenon such as precipitation, because the baby milk powder does not contain water, the final product is not affected, but the invention is the liquid baby milk, the selection requirement to the protein source is different, the invention adds the concentrated whey protein or the desalted whey powder according to the proportion not only can meet the protein requirement of the baby in this month, the selected component is closest to the breast milk, and will not produce the precipitation in the heating, and the advantage of using the concentrated whey protein or the desalted whey powder is that the protein is prevented from being denatured in the heating sterilization, because it has better heat stability.
The above vegetable fat powder is selected from: the fat powder is produced by refining, evaporating, concentrating and spray drying natural soybean oil and corn oil clear, the content of unsaturated fatty acid is more than or equal to 50 percent, and the heat stability is good. The production process of the vegetable fat powder comprises the following steps:
(emulsification before the previous process and preparation similar to milk powder) oil phase dissolution adjustment (natural soybean oil, corn oil, etc.) + water phase adjustment (seipan, sucrose ester, single or double glycerol ester, flavor substance, carrier) → primary emulsification → fine emulsification → homogenization → sterilization → double effect evaporator concentration or perfuming → spray drying → fluidized bed cooling → sieving powder → packaging → packing → inspection → finished product
The advantages are that: the ratio of the vegetable fat powder is such that the ratio of linoleic acid to alpha-linolenic acid in the final product is in the range of (5: 1) - (15: 1). Is closer to breast milk and is beneficial to the nutrition requirement of the infant. Meanwhile, linoleic acid and alpha-linolenic acid are precursors of docosahexaenoic acid and arachidonic acid and can promote the intelligence development of infants.
The emulsion stabilizer is selected from: two or more of phospholipid, carrageenan, guar gum, locust bean gum, mono/di/tri fatty acid glyceride, monoglyceride and sucrose ester; the addition amount is 0.05-0.7% by weight; the preferred range is 0.1% -0.5%; wherein, the preferred combination of carrageenan (the addition amount is 0.01-0.05% by weight), locust bean gum (the addition amount is 0.02-0.08% by weight), and mono/di/triglyceride (the addition amount is 0.02-0.08% by weight); or preferably guar gum (added in an amount of 0.05-0.1 wt%), mono/di/triglyceride (added in an amount of 0.02-0.05 wt%), and mono-dry ester (added in an amount of 0.02-0.05 wt%); or preferably phospholipid (added in an amount of 0.05-0.1 wt%), mono/di/triglyceride (added in an amount of 0.02-0.05 wt%), and sucrose ester (added in an amount of 0.05-0.1 wt%).
The composite vitamin in the infant liquid milk comprises the following components in parts by weight:
vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The added vitamins include vitamin A acetate, vitamin D3, thiamine nitrate, ascorbic acid, vitamin E acetate, calcium pantothenate, pyridoxine hydrochloride, D-biotin, folic acid, nicotinamide, vitamin K1, and vitamin B12.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
Wherein:
the iron is provided by one or more iron preparations such as ferrous gluconate, ferrous sulfate, ferrous lactate, ferric citrate, ferric pyrophosphate, etc.;
the zinc is provided by one or a combination of zinc preparations such as zinc sulfate, zinc gluconate, zinc lactate, zinc chloride and the like;
the calcium is provided by one or more calcium preparations such as milk calcium, calcium citrate, calcium phosphate, calcium chloride, calcium carbonate, calcium lactate, etc.;
the magnesium is provided by one or more magnesium preparations such as magnesium sulfate, magnesium chloride, magnesium citrate, etc.;
iodine is provided by potassium iodide;
manganese is provided by manganese sulfate;
the copper is provided by copper sulfate.
Because the metal elements can react with enzyme substances in the milk to cause chemical reactions such as precipitation, discoloration and the like, the invention selects mineral substances to add aiming at the problems, not only can supplement nutrient elements for infants, but also can not influence the properties of products, and is creative in the invention. After long-term research, the inventors found that the above-mentioned problems can be avoided by selecting the above-mentioned compounds when the above-mentioned metal elements are added, and that the above-mentioned compounds do not cause any chemical reactions such as precipitation and discoloration even when combined. Therefore, in the selection of the trace elements, the invention determines the type and amount of the added minerals according to the nutrient content of the designed product. Excessive copper and iron promote the oxidation of milk fat and vegetable oil, and cause the liquid milk to generate poor flavor. The advantages are that: the selected mineral elements are colorless, odorless, do not significantly affect the properties of milk, are soluble in water, have stable chemical properties and high absorption rate, do not have obvious promotion effect on adverse enzyme reactions in milk, and have proper specific gravity.
The invention relates to a preparation method of spray type direct sterilization of infant liquid milk, which comprises the following steps:
(1) checking and accepting raw milk; (2) pretreating raw milk; (3) preparing materials; (4) preheating and homogenizing; (5) UHT steam jet type direct sterilization; (6) cooling; (7) sterile filling and obtaining finished products; wherein,
(1) checking and accepting the raw milk:
the method mainly aims at detecting acidity, fat, whole milk solid, specific gravity, adulteration (starch, alkali, salt, nitrite and the like), antibiotics, taste and smell and the like, and qualified high-quality milk is used as raw milk. Substances harmful to human bodies, such as nitrate, pesticide residues, antibiotics and the like, in the milk are strictly controlled.
(2) Pretreating raw milk:
coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; after centrifugal milk cleaning, fine dirt, desquamated breast epithelial tissues, white blood cells and the like are removed, high milk cleaning is achieved, and the product quality is improved. In order to obtain a finished product with stable composition components, standardization must be performed to achieve a balance between milk fat and non-fat milk solids, etc. The storage temperature is about 4 ℃.
(3) Preparing materials:
pumping the pretreated milk into a mixing tank. If reconstituted milk is used, whole milk powder, skim milk powder or cream (or butter) is reconstituted (45 ℃) and pumped into a mixing tank.
And (3) centrifugally degreasing the pretreated milk to obtain degreased milk, cooling the degreased milk, and adding the cooled degreased milk into a mixing tank.
Adding water at 45 deg.C, mixing with whey protein concentrate, desalted whey powder, sucrose and dextrin, recovering, and adding into a mixing tank.
Mixing the vegetable fat powder with emulsifier, mixing with water at 65 deg.C, and adding into mixing tank.
Adding water at 25 deg.C, mixing with vitamins, and adding into mixing tank.
Adding water at 25 deg.C, mixing with minerals, and adding into mixing tank.
Stirring, uniformly mixing and fixing the volume:
adding the materials into a mixing tank, stirring for 5-20min, supplementing water, and fixing volume.
(4) Preheating and homogenizing:
preheating: the preheating temperature is 65-90 ℃.
Homogenizing: homogenizing pressure: the total pressure is 18-25Mpa, the first-stage pressure is 10-20Mpa, and the second-stage pressure is 8-10 Mpa.
(5) UHT steam spray direct sterilization:
the sterilization temperature is 138-145 ℃, and the sterilization time is 4-6 seconds.
The UHT steam jet type direct sterilization mode comprises the following steps: the material is heated to 75 ℃, then sprayed into a tank filled with high-temperature steam to raise the temperature of the material to 138-145 ℃, and the temperature is maintained for 4-6 seconds. The water brought by the steam is removed by flash evaporation.
The advantages are that: compared with the traditional plate-type and tube-type UHT indirect sterilization mode, the UHT steam jet type direct sterilization mode is that steam is in direct contact with materials, so that the temperature rise time is shortened, the materials are heated more uniformly, and the nutrition, color and taste of the product are better reserved.
(6) And (3) cooling:
cooling the milk instantly sterilized at ultra-high temperature to about 15-30 deg.C. The sterilized milk enters an aseptic tank.
(7) And (4) sterile filling, and obtaining a finished product:
and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
In addition, in the selection of the trace elements, the invention determines the type and the amount of the added minerals according to the nutrient content of the designed product. The advantages are that: the selected mineral elements are colorless, odorless, do not significantly affect the properties of milk, are soluble in water, have stable chemical properties and high absorption rate, do not have obvious promotion effect on adverse enzyme reactions in milk, and have proper specific gravity.
While excessive amounts of copper and iron promote the oxidation of milk fat and vegetable oils, which causes the liquid milk to have a bad flavor, the selection of copper and iron compounds in the present invention is inventive, because only the selected compounds of the present invention can provide the final product in a stable liquid state without oxidation, which is the result of many experiments conducted by the present inventors.
The product of the invention is prepared by adopting a conventional mixing and adding mode for other raw materials, the preferred sterile online adding technology of the vitamin complex is as follows:
(1) checking and accepting the raw milk:
the method mainly aims at detecting acidity, fat, whole milk solid, specific gravity, adulteration (starch, alkali, salt, nitrite and the like), antibiotics, taste and smell and the like, and qualified high-quality milk is used as raw milk. Substances harmful to human bodies, such as nitrate, pesticide residues, antibiotics and the like, in the milk are strictly controlled.
(2) Pretreating raw milk:
coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; after centrifugal milk cleaning, fine dirt, desquamated breast epithelial tissues, white blood cells and the like are removed, high milk cleaning is achieved, and the product quality is improved. In order to obtain a finished product with stable composition components, standardization must be performed to achieve a balance between milk fat and non-fat milk solids, etc. The storage temperature is about 4 ℃.
(3) Preparing materials:
pumping the pretreated milk into a mixing tank. If reconstituted milk is used, whole milk powder, skim milk powder or cream (or butter) is reconstituted (45 ℃) and pumped into a mixing tank.
Adding water at 45 deg.C, mixing with whey protein concentrate, desalted whey powder, and lactose, recovering, and adding into a mixing tank.
Mixing the plant fat powder with the emulsion stabilizer, mixing with water at a temperature of above 65 ℃, and adding into a mixing tank.
Adding water at 25 deg.C, mixing with vitamins, and adding into mixing tank.
Stirring, uniformly mixing and fixing the volume:
adding the materials into a mixing tank, stirring for 5-20min, supplementing water, and fixing volume.
(4) Preheating and homogenizing:
preheating: the preheating temperature is 65-90 ℃.
Homogenizing: homogenizing pressure: the total pressure is 18-25Mpa, the first-stage pressure is 10-20Mpa, and the second-stage pressure is 8-10 Mpa.
(5) UHT sterilization:
the sterilization temperature is 137-142 ℃, and the sterilization time is 2-4 seconds. UHT sterilization can adopt various sterilization modes such as tubular steam sterilization, plate steam sterilization and the like.
(6) And (3) cooling:
cooling the milk instantly sterilized at ultra-high temperature to about 15-30 deg.C. The sterilized milk enters an aseptic tank.
(7) Sterile on-line addition:
for heat-sensitive nutritional components such as vitamins, an on-line addition process (post-sterilization addition process) is selected. Namely, the compound vitamin is stored in a sterile bag (or a tank, etc.) in a liquid sterile state, and is connected with a sterile adding system to add the heat-sensitive component into the sterile tank or quantitatively add the heat-sensitive component into a pipeline.
(8) And (4) sterile filling, and obtaining a finished product:
and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
[ Effect of the invention ]
1. The UHT steam jet type direct sterilization technology provides important guarantee for the stability and the safety of the heat-sensitive components contained in the product, and simultaneously ensures the color and the taste of the product. The optimized sterile adding method provides important guarantee for the stability and safety of the heat-sensitive components contained in the product.
2. According to the proportion of the components of the breast milk, the concentrated whey protein and the desalted whey powder are added, so that the amounts of the casein and the whey protein are consistent with the amount of the breast milk, and the casein and the whey protein are easy to be digested and absorbed by babies. The use of concentrated whey protein and desalted whey powder, in the form of liquid milk, has the advantage of avoiding denaturation of the protein during heat sterilization, and the components selected in the present invention are closest to the milk because of its better heat stability, the ratio of whey protein to casein in the milk being 1: 2.
3. According to the proportion of breast milk components, the plant fat powder is added, so that the proportion of linoleic acid to alpha-linolenic acid in the final product is (5: 1) - (15: 1). Is closer to breast milk and is beneficial to the nutrition requirement of the infant. Meanwhile, linoleic acid and alpha-linolenic acid are precursors of docosahexaenoic acid and arachidonic acid and can promote the intelligence development of infants.
4. According to the actual formula of the invention, the formula of the stabilizer is selected, so that the final product has stable properties.
5. Compared to infant milk powder, liquid infant milk has many advantages, such as: no need of mixing, constant concentration, convenient feeding, safety, sanitation, etc. The development of the infant formula towards the liquid state becomes great tendency, the development prospect is wide, and the economic benefit and the social benefit are higher.
Detailed Description
The embodiments of the present invention are intended to illustrate rather than limit the scope of the present invention, and it should be clearly understood and appreciated by those skilled in the art that the range of proportions disclosed in the specification is intended to be a complete and flawless practice of the present invention, and any slight differences in nutritional ingredients due to differences in milk sources should not be considered as a reason that the examples of the present invention are not in accordance with the specification, and therefore the present invention is intended to protect the spirit of the addition of nutrients, and is not intended to be particularly restricted to a specific value.
Due to the differences of the milk products, the added components cannot be clearly and strictly limited in the examples to be exactly the same as the ranges defined in the specification, and the following examples are also the same. One of ordinary skill in the art will understand and be able to practice the present invention in light of the disclosed data and methods.
Example 1
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
600Kg of milk, 50Kg of skimmed milk, 10Kg of concentrated whey protein 34 (whey protein content 33%), 20Kg of desalted whey powder D70 (whey protein content 12%), 50Kg of vegetable fat powder, 10Kg of sucrose, 20Kg of dextrin, 500g of vitamin complex, 600g of complex minerals, 8Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 500g and the compound mineral substance with the total weight of 600g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-g. Vitamin K25-177 μ g, vitamin B1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected as follows: carrageenan (added in 0.01 wt%), locust bean gum (added in 0.08 wt%), and mono/di/tri fatty acid glyceride (added in 0.08 wt%).
The preparation method comprises the following steps:
(1) checking and accepting the raw milk:
the method mainly aims at detecting acidity, fat, whole milk solid, specific gravity, adulteration (starch, alkali, salt, nitrite and the like), antibiotics, taste and smell and the like, and qualified high-quality milk is used as raw milk. Substances harmful to human bodies, such as nitrate, pesticide residues, antibiotics and the like, in the milk are strictly controlled.
(2) Pretreating raw milk:
coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; after centrifugal milk cleaning, fine dirt, desquamated breast epithelial tissues, white blood cells and the like are removed, high milk cleaning is achieved, and the product quality is improved. In order to obtain a finished product with stable composition components, standardization must be performed to achieve a balance between milk fat and non-fat milk solids, etc. The storage temperature is about 4 ℃.
(3) Preparing materials:
pumping the pretreated milk into a mixing tank. If reconstituted milk is used, whole milk powder, skim milk powder or cream (or butter) is reconstituted (45 ℃) and pumped into a mixing tank.
Adding water at 45 deg.C, mixing with whey protein concentrate, desalted whey powder, and lactose, recovering, and adding into a mixing tank.
Mixing the plant fat powder with the emulsion stabilizer, mixing with water at a temperature of above 65 ℃, and adding into a mixing tank.
Adding water at 25 deg.C, mixing with vitamins, and adding into mixing tank.
Stirring, uniformly mixing and fixing the volume:
adding the materials into a mixing tank, stirring for 20min, supplementing water, and fixing volume.
(4) Preheating and homogenizing:
preheating: the preheating temperature was 65 ℃.
Homogenizing: homogenizing pressure: the total pressure is 18MPa, the primary pressure is 10MPa, and the secondary pressure is 8 MPa.
(5) UHT steam spray direct sterilization:
the sterilization temperature is 145 ℃, and the sterilization time is 4 seconds.
(6) And (3) cooling:
cooling the milk sterilized instantaneously at ultra-high temperature to about 15 ℃. The sterilized milk enters an aseptic tank.
(7) And (4) sterile filling, and obtaining a finished product:
and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
Example 2
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
400Kg of milk, 10Kg of skimmed milk, 2Kg of concentrated whey protein 34 (whey protein content 33%), 5Kg of desalted whey powder D70 (whey protein content 12%), 10Kg of vegetable fat powder, 3Kg of sucrose, 5Kg of dextrin, 230g of vitamin complex, 420g of complex mineral, 3.8Kg of stabilizer, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 230g and the compound mineral substance with the total weight of 420g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected as follows: carrageenan (added in 0.05 wt%), locust bean gum (added in 0.08 wt%), and mono/di/tri fatty acid glyceride (added in 0.08 wt%).
The preparation method comprises the following steps:
(1) checking and accepting the raw milk:
the method mainly aims at detecting acidity, fat, whole milk solid, specific gravity, adulteration (starch, alkali, salt, nitrite and the like), antibiotics, taste and smell and the like, and qualified high-quality milk is used as raw milk. Substances harmful to human bodies, such as nitrate, pesticide residues, antibiotics and the like, in the milk are strictly controlled.
(2) Pretreating raw milk:
coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; after centrifugal milk cleaning, fine dirt, desquamated breast epithelial tissues, white blood cells and the like are removed, high milk cleaning is achieved, and the product quality is improved. In order to obtain a finished product with stable composition components, standardization must be performed to achieve a balance between milk fat and non-fat milk solids, etc. The storage temperature is about 4 ℃.
(3) Preparing materials:
pumping the pretreated milk into a mixing tank. If reconstituted milk is used, whole milk powder, skim milk powder or cream (or butter) is reconstituted (45 ℃) and pumped into a mixing tank.
Adding water at 45 deg.C, mixing with whey protein concentrate, desalted whey powder, and lactose, recovering, and adding into a mixing tank.
Mixing the plant fat powder with the emulsion stabilizer, mixing with water at a temperature of above 65 ℃, and adding into a mixing tank.
Adding water at 25 deg.C, mixing with vitamins, and adding into mixing tank.
Stirring, uniformly mixing and fixing the volume:
adding the materials into a mixing tank, stirring for 5min, supplementing water, and fixing volume.
(4) Preheating and homogenizing:
preheating: the preheating temperature was 90 ℃.
Homogenizing: homogenizing pressure: the total pressure is 25MPa, the primary pressure is 20MPa, and the secondary pressure is 10 MPa.
(5) UHT steam spray direct sterilization:
the sterilization temperature is 138 ℃, and the sterilization time is 6 seconds.
(6) And (3) cooling:
cooling the milk sterilized instantaneously at ultra-high temperature to about 30 ℃. The sterilized milk enters an aseptic tank.
(7) And (4) sterile filling, and obtaining a finished product:
and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
Example 3
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
500Kg of milk, 30Kg of skim milk, 6Kg of concentrated whey protein 34 (whey protein content 33%), 12Kg of desalted whey powder D70 (whey protein content 12%), 30Kg of vegetable fat powder, 7Kg of sucrose, 12Kg of dextrin, 300g of vitamin complex, 400g of complex minerals, 4Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 300g and the compound mineral substance with the total weight of 400g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected as follows: carrageenan (added in 0.01 wt%), locust bean gum (added in 0.02 wt%), and mono/di/tri fatty acid glyceride (added in 0.02 wt%).
(1) Checking and accepting the raw milk:
the method mainly aims at detecting acidity, fat, whole milk solid, specific gravity, adulteration (starch, alkali, salt, nitrite and the like), antibiotics, taste and smell and the like, and qualified high-quality milk is used as raw milk. Substances harmful to human bodies, such as nitrate, pesticide residues, antibiotics and the like, in the milk are strictly controlled.
(2) Pretreating raw milk:
coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; after centrifugal milk cleaning, fine dirt, desquamated breast epithelial tissues, white blood cells and the like are removed, high milk cleaning is achieved, and the product quality is improved. In order to obtain a finished product with stable composition components, standardization must be performed to achieve a balance between milk fat and non-fat milk solids, etc. The storage temperature is about 4 ℃.
(3) Preparing materials:
pumping the pretreated milk into a mixing tank. If reconstituted milk is used, whole milk powder, skim milk powder or cream (or butter) is reconstituted (45 ℃) and pumped into a mixing tank.
Adding water at 45 deg.C, mixing with whey protein concentrate, desalted whey powder, and lactose, recovering, and adding into a mixing tank.
Mixing the plant fat powder with the emulsion stabilizer, mixing with water at a temperature of above 65 ℃, and adding into a mixing tank.
Adding water at 25 deg.C, mixing with vitamins, and adding into mixing tank.
Stirring, uniformly mixing and fixing the volume:
adding the materials into a mixing tank, stirring for 20min, supplementing water, and fixing volume.
(4) Preheating and homogenizing:
preheating: the preheating temperature was 90 ℃.
Homogenizing: homogenizing pressure: the total pressure is 25MPa, the primary pressure is 20MPa, and the secondary pressure is 10 MPa.
(5) UHT sterilization:
the sterilization temperature is 142 ℃ and the sterilization time is 2 seconds. UHT sterilization can adopt various sterilization modes such as tubular steam sterilization, plate steam sterilization and the like.
(6) And (3) cooling:
cooling the milk sterilized instantaneously at ultra-high temperature to about 15 ℃. The sterilized milk enters an aseptic tank.
(7) Sterile on-line addition:
for the heat-sensitive nutritional component vitamins, an online addition process (post-sterilization addition process) is selected. Namely, the compound vitamin is stored in a sterile bag (or a tank, etc.) in a liquid sterile state, and is connected with a sterile adding system to add the heat-sensitive component into the sterile tank or quantitatively add the heat-sensitive component into a pipeline.
(8) And (4) sterile filling, and obtaining a finished product:
and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
Example 4
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
550Kg of milk, 42Kg of skimmed milk, 6.5Kg of concentrated whey protein 34 (whey protein content 33%), 9.5Kg of desalted whey powder D70 (whey protein content 12%), 42Kg of vegetable fat powder, 8Kg of sucrose, 15Kg of dextrin, 500g of vitamin complex, 600g of complex minerals, 8Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 500g and the compound mineral substance with the total weight of 600g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected from: guar gum (added in an amount of 0.1% by weight), mono/di/triglyceride (added in an amount of 0.05% by weight), and monoglyceride (added in an amount of 0.05% by weight).
The preparation method is the same as example 1.
Example 5
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
600Kg of milk, 20Kg of skimmed milk, 5Kg of concentrated whey protein 34 (whey protein content 33%), 9Kg of desalted whey powder D70 (whey protein content 12%), 40Kg of vegetable fat powder, 7Kg of sucrose, 14Kg of dextrin, 130g of vitamin complex, 330g of complex minerals, 3.3Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 250g and the compound mineral substance with the total weight of 450g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected from: guar gum (added in an amount of 0.05% by weight), mono/di/triglyceride (added in an amount of 0.02% by weight), and a mono dry ester (added in an amount of 0.02% by weight).
The preparation method is the same as example 2.
Example 6
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
500Kg of milk, 30Kg of skim milk, 7Kg of concentrated whey protein 34 (the content of whey protein is 33%), 17Kg of desalted whey powder D70 (the content of whey protein is 12%), 34Kg of vegetable fat powder, 6Kg of sucrose, 12Kg of dextrin, 200g of vitamin complex, 350g of complex minerals, 3.4Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, and the compound vitamin with the total weight of 200g and the compound mineral substance with the total weight of 350g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected from: phospholipid (added in an amount of 0.1% by weight), mono/di/tri fatty acid glyceride (added in an amount of 0.05% by weight), and sucrose ester (added in an amount of 0.1% by weight).
The preparation method is the same as example 3.
Example 7
Taking the production of one ton of the product of the invention as an example, the ingredients are as follows:
400Kg of milk, 50Kg of skimmed milk, 2Kg of concentrated whey protein 34 (whey protein content 33%), 20Kg of desalted whey powder D70 (whey protein content 12%), 10Kg of vegetable fat powder, 10Kg of sucrose, 5Kg of dextrin, 220g of vitamin complex, 400g of complex minerals, 3.6Kg of stabilizers, and the balance of water. Wherein the selection of the compound vitamin and the compound mineral substance is in the following range, the compound vitamin with the total weight of 220g and the compound mineral substance with the total weight of 400g are obtained:
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, and 10-53.1 μ g biotin.
The composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese.
The emulsion stabilizer is selected from: phospholipid (added in an amount of 0.05% by weight), mono/di/tri fatty acid glyceride (added in an amount of 0.02% by weight), and sucrose ester (added in an amount of 0.05% by weight).
The preparation method is the same as example 3.
Although the conception and the embodiments of the present invention have been described in detail, those skilled in the art will recognize that various changes and modifications may be made therein without departing from the scope of the appended claims.
The product of the invention has the following effects:
animal tests such as acute toxicity test, genetic toxicity test, 30-day feeding test, traditional teratogenesis test and the like are carried out on the product, and the product is safe and nontoxic; and has the function of promoting the growth of mice.
300 infants born in 2006-2007 in 3 were selected for the test, 150 infants were male and 150 infants were female. These infants are the first fetus of term, and have a weight of 2.9-3.2kg and a body length of 49-51cm at birth. No disease in 0-30 days. Infants with the same age in the month were fed with the same group of infants with no statistical difference in length, weight, and head circumference. Parents are the support or volunteers of the program. There was no statistical difference in parental cultural degree and family economic status between the two groups of infants. The screened infants do not belong to the population with lactose intolerance and milk protein inadaptation.
According to experimental design, the infant formula milk powder feeding group is divided into a male infant group and a female infant group, and each group is divided into a breast feeding group, an infant formula liquid milk group and an infant formula powder feeding group.
Feeding the infant with breast milk for 12 months, starting a grouping test, and measuring indexes such as weight, body length, upper arm circumference and the like which reflect the growth and development of the infant. The recommended liquid feeding amounts are shown in table 1. The feeding amount of the formula powder is converted into the volume number of the instant state. The complementary feeding condition of the infants is basically the same in 6-12 months.
Table 1 suggested feeding amounts
| Mean body weight | Amount of feed | ||
| Age of the month | kg | ml | Number of times of feeding for 24h |
| 8 months old | 8.5 | 230 | 5 |
| For 10 months | 9.2 | 240 | 5 |
| 12 months old | 9.7 | 250 | 4 |
The results of different feeding modes and infant physique development are shown in table 2.
TABLE 2 feeding method and results x + -s of baby physique development
As can be seen from table 2, the differences between the infant formula group, the infant formula group and the breastfeeding group become smaller from 6 months to 12 months. That is, as the age of the infant increases, the differences in physical development of the infant from feeding to feeding are reduced. In addition, it can be seen that the infant formula group had better results of developing the physical constitution of the infants than the infant formula group. The infant formula milk overcomes the difference of water adding proportion when the formula powder is artificially fed, and ensures the reasonable content of the nutrient components; the disadvantages of non-uniformity and coarse particles in brewing are also avoided. Research shows that the infant formula milk has balanced nutrition, fine and smooth taste and easy absorption, and can meet the requirements of normal growth and development of infants.
Claims (6)
1. A method for preparing liquid milk suitable for 6 to 12 months babies by using a jet type direct sterilization technology is characterized in that:
1) the product comprises the following raw material components in percentage by weight: 400Kg of pretreated milk, 10 to 50Kg of defatted milk obtained by centrifugal defatting after pretreatment, 342 to 10Kg of concentrated lactalbumin, 705 to 20Kg of desalted whey powder, 10 to 50Kg of vegetable fat powder, 3 to 10Kg of sucrose, 5 to 20Kg of dextrin, 500g of compound vitamin 100-; wherein, the selection of the compound vitamin and the compound mineral substance is in the following range to obtain the corresponding total weight:
the composite mineral comprises the following components in percentage by weight: 300-973.5mg of calcium, 150-649mg of phosphorus, 30-106.2mg of magnesium, 375-1121mg of potassium, 3.5-14.75mg of iron, 3-10.62mg of zinc, 413mg of sodium 125-413mg of iodine 62.5-354 μ g, 210-737.5 μ g of copper and 6.25-737.5 μ g of manganese; the copper, iron, magnesium, zinc and manganese in the mineral substances are derived from: the iron is provided by one or more iron preparations of ferrous gluconate, ferrous sulfate, ferric citrate and ferric pyrophosphate; the zinc is provided by one or a combination of zinc preparations of zinc sulfate, zinc lactate and zinc chloride; the magnesium is provided by one or more magnesium preparations of magnesium sulfate, magnesium chloride and magnesium citrate; manganese is provided by manganese sulfate; the copper is provided by copper sulfate;
the composite vitamin comprises the following components in percentage by weight: vitamin A1165.5-4224.1IU, vitamin D3885IU of 250-1350-2475-2802.5 μ g, vitamin B6225-1239. mu.g, vitamin B120.625-3.54 μ g, 1.8-11.06mg nicotinic acid, 2375-14012.5 μ g pantothenic acid, 62.5-354 μ g folic acid, 10-53.1 μ g biotin;
2) the preparation method of the product comprises the following steps: (1) checking and accepting raw milk; (2) pretreating raw milk; (3) preparing materials; (4) preheating and homogenizing; (5) UHT steam jet type direct sterilization; (6) cooling; (7) sterile filling and obtaining finished products; wherein:
the raw milk acceptance in the step (1) is as follows: mainly aiming at detecting acidity, fat, whole milk solid, specific gravity and adulteration, and using qualified high-quality milk as raw milk;
the step (2) is characterized by comprising the following steps of raw material milk pretreatment: coarse filtering cow milk with gauze or duplex filter to remove large foreign matters and impurities; centrifuging to remove fine dirt, exfoliated breast epithelial tissue and leukocyte to obtain high-purity milk; standardizing to achieve the balance of indexes between milk fat and non-fat milk solid; the storage temperature is 4 ℃;
the step (3) comprises the following steps: pumping the pretreated milk into a mixing tank; centrifugally degreasing the pretreated milk to obtain degreased milk, cooling the degreased milk, and adding the cooled degreased milk into a mixing tank; adding water at 45 ℃, uniformly mixing with the concentrated whey protein 34, the desalted whey powder D70, the sucrose and the dextrin, and adding into a mixing tank; mixing the plant fat powder with emulsion stabilizer, mixing with water at above 65 deg.C, and adding into mixing tank; adding water at 25 ℃ to be uniformly mixed with the compound vitamin, and then adding the mixture into a mixing tank; adding water at 25 ℃ to be uniformly mixed with the composite mineral substance, and then adding the mixture into a mixing tank; adding the materials into a mixing tank, stirring for 5-20min, supplementing water, and fixing volume;
preheating and homogenizing in the step (4): the preheating temperature is 65-90 ℃; homogenizing pressure: the total pressure is 18-25Mpa, the primary pressure is 10-20Mpa, and the secondary pressure is 8-10 Mpa;
the UHT steam jet type direct sterilization method in the step (5) comprises the following steps: firstly heating the material to 75 ℃, then spraying the material into a tank filled with high-temperature steam to raise the temperature of the material to 138-145 ℃, preserving the heat for 4-6 seconds, and removing moisture brought by the steam through flash evaporation;
and (6) cooling: cooling the material subjected to ultrahigh-temperature instantaneous sterilization to 15-30 ℃, and feeding the sterilized material into an aseptic tank;
and (7) sterile filling, and obtaining a finished product: and (5) sterile filling and packaging, and sending the qualified product into a finished product warehouse.
2. The method of claim 1 for preparing liquid milk suitable for 6 to 12 month old infants, characterized in that: the preparation method of the concentrated whey protein 34 comprises the following steps: the whey is produced by membrane treatment, evaporation, concentration and spray drying, the whey protein content is more than or equal to 33 percent, and the heat stability is good.
3. The method of claim 1 for preparing liquid milk suitable for 6 to 12 month old infants, characterized in that: the desalted whey powder D70 is characterized in that: the protein is produced by carrying out membrane treatment, evaporation, concentration and spray drying on whey, wherein the content of whey protein is more than or equal to 12 percent, the ash content is less than or equal to 0.1 percent, and the heat stability is good.
4. The method of claim 1 for preparing liquid milk suitable for 6 to 12 month old infants, characterized in that: the addition ratio of the vegetable fat powder is that the ratio of the linoleic acid to the alpha-linolenic acid in the final product ranges from (5: 1) to (15: 1).
5. The method of preparing liquid milk suitable for infants from 6 to 12 months as claimed in claim 1 or 4, wherein: the vegetable fat powder comprises: the natural soybean oil and the corn oil are produced by refining, evaporating, concentrating and spray drying, the content of unsaturated fatty acid is more than or equal to 50 percent, and the thermal stability is good.
6. The method of claim 1 for preparing liquid milk suitable for 6 to 12 month old infants, characterized in that: the emulsion stabilizer is selected from: phospholipid, carrageenan, guar gum, locust bean gum, mono/di/tri fatty acid glyceride and sucrose ester.
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| CN103168839B (en) * | 2011-12-22 | 2014-11-19 | 浙江贝因美科工贸股份有限公司 | Preparation process of infant formula milk powder |
| CN102511565B (en) * | 2011-12-30 | 2014-02-26 | 内蒙古伊利实业集团股份有限公司 | Fermented whey drink containing L-carnitine and production method of fermented whey drink |
| CN106509096A (en) * | 2016-09-27 | 2017-03-22 | 黑龙江省绿色食品科学研究院 | Preparation method of sterilized milk |
| CN110403022B (en) * | 2018-04-28 | 2023-09-15 | 内蒙古乳业技术研究院有限责任公司 | Liquid infant milk suitable for 0-12 months old and preparation method thereof |
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| CN1489918A (en) * | 2002-10-18 | 2004-04-21 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for infants |
| CN1489915A (en) * | 2002-10-18 | 2004-04-21 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for infants |
| CN101095433A (en) * | 2007-08-03 | 2008-01-02 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk suitable for 1 to 3 years old children and the method for producing the same |
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| CN1489918A (en) * | 2002-10-18 | 2004-04-21 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for infants |
| CN1489915A (en) * | 2002-10-18 | 2004-04-21 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for infants |
| CN101095433A (en) * | 2007-08-03 | 2008-01-02 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk suitable for 1 to 3 years old children and the method for producing the same |
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