CN114208895A - Novel infant formula milk powder with optimized fat composition and preparation method thereof - Google Patents
Novel infant formula milk powder with optimized fat composition and preparation method thereof Download PDFInfo
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- CN114208895A CN114208895A CN202111601393.8A CN202111601393A CN114208895A CN 114208895 A CN114208895 A CN 114208895A CN 202111601393 A CN202111601393 A CN 202111601393A CN 114208895 A CN114208895 A CN 114208895A
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- 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
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23C21/00—Whey; Whey preparations
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- 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
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- A23C21/10—Whey; Whey preparations containing inorganic additives
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Abstract
The invention discloses novel infant formula milk powder with optimized fat composition, which comprises the following components in percentage by weight: 63.82-81.50% of cow milk, 0-16.30% of lactose, 4.2-20.76% of desalted whey powder, 0-3.71% of concentrated whey protein powder, 1.84-9.58% of edible plant blend oil, 0-4.19% of breast milk substitute fat, 1.31-1.99% of prebiotics, 0.20-0.84% of unsaturated fatty acids, 0.05-0.16% of infant vitamin premix, 0.22-0.54% of infant mineral premix, 0-0.04% of choline chloride, 0-0.02% of taurine, 0-0.01% of nucleotides and 0-0.01% of lutein. The invention also provides a preparation method of the infant formula milk powder with the optimized fat formula prepared from the raw materials. The novel infant formula milk powder is prepared by mixing edible plant blend oil, breast milk substitute fat and milk fat in a certain proportion, and the similarity evaluation of fatty acid and breast milk is higher; the similarity evaluation of the main triglyceride and the breast milk is higher, and the difference between the infant formula milk powder and the breast milk in the aspects of components and functions is reduced.
Description
Technical Field
The invention belongs to the field of dairy products, and particularly relates to novel infant formula milk powder with optimized fat composition and a preparation method thereof.
Background
Nutrition early in life has a very important impact on the short-term as well as the long-term health of the human body. Early nutrition is critical to the construction of the brain's neural network and permanently affects brain structure and function. Infancy is a critical stage in cognitive development, as the brain develops very rapidly and changes rapidly during this period. Newborn infants have brain volumes of only 25% of the mature brain volume, possess all nerve cells, but are not interconnected. At the age of 1 year, the brain volume of an infant is 70% of the mature brain volume. The remaining 30% of brain development will be completed in the next few years. Infants fed by conventional formula: lower cognitive scores lead to a higher incidence of infection within the first year of life and an increased risk of obesity.
Breast milk is a natural food most suitable for infants, wherein lipids are one of the important nutrients in breast milk and can provide 40-50% of energy to infants. Fatty acids are components of breast milk lipids and play an important role in infant growth and development, such as n-3 and n-6 polyunsaturated fatty acids, which provide brain development necessary for infant brain development. Numerous studies have underscored the importance of n-3 and n-6 polyunsaturated fatty acids in breast milk for normal brain development, particularly early brain development. The types of fatty acids in breast milk are various and mainly classified into saturated fatty acids, monounsaturated fatty acids and polyunsaturated fatty acids. The infant formula milk powder on the market is generally produced according to the types and the content of fatty acid in the breast milk. Breast-fed infants have a different intestinal flora and a reduced incidence of infections, diarrhoea and allergic and atopic dermatitis compared to formula-fed infants. Therefore, the simulation of the breast milk components of the infant formula is an important aspect of the current enterprise formula upgrading. In particular a fatty acid component and a triglyceride component consisting of fatty acids and glycerol.
Therefore, it is an urgent technical problem for those skilled in the art to help narrow the gap between the components and functions of infant formula and breast milk by optimizing the fat composition of infant formula.
Disclosure of Invention
The invention aims to optimize the fat composition of the infant formula milk powder to approximate the similarity with the composition of Chinese mother milk fat. Develops a formula of novel infant formula milk powder closer to the fat composition of breast milk and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides novel infant formula milk powder with optimized fat composition, which comprises the following components in percentage by weight: 63.82-81.50% of cow milk, 0-16.30% of lactose, 4.2-20.76% of desalted whey powder, 0-3.71% of concentrated whey protein powder, 1.84-9.58% of edible plant blend oil, 0-4.19% of breast milk substitute fat, 1.31-1.99% of prebiotics, 0.20-0.84% of unsaturated fatty acids, 0.05-0.16% of infant vitamin premix, 0.22-0.54% of infant mineral premix, 0-0.04% of choline chloride, 0-0.02% of taurine, 0-0.01% of nucleotides and 0-0.01% of lutein.
Preferably, the edible vegetable blend oil comprises one or more of coconut oil, corn oil, palm kernel oil, soybean oil, low erucic acid rapeseed oil, linseed oil and sunflower seed oil.
Preferably, the breast milk substitute fat comprises mixed fat of 1, 3-dioleoyl-2-palmitic acid triglyceride and 1-oleic-2-palmitic acid-3-linoleic acid triglyceride.
Preferably, the unsaturated fatty acids comprise docosahexaenoic acid DHA and arachidonic acid ARA; wherein the content of DHA is 0.23-0.36%; the content of arachidonic acid ARA is 0.31-0.48%.
Preferably, the prebiotics are one or two of galactooligosaccharides and polyfructose.
The invention also provides a preparation method of the novel infant formula milk powder with the optimized fat composition, which comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing and completely dissolving cow milk, lactose, desalted whey powder, concentrated whey protein, prebiotics, infant vitamin premix, infant mineral premix, choline chloride and taurine to obtain feed liquid A;
(3) mixing and stirring the breast milk substitute fat and the edible plant blend oil, heating to 40-50 ℃, mixing the melted mixture into the feed liquid A, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B, sterilizing, concentrating, and spray drying to obtain material C;
(5) uniformly mixing the material C with docosahexaenoic acid (DHA), arachidonic acid (ARA), nucleotide and lutein at 25-30 ℃ under a relative humidity of 40-50%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Preferably, the cow milk qualified in the step (1) contains 2.95-3.10% of protein, 3.10-3.30% of fat and 11.7% of total solids.
Preferably, the mixing temperature in the step (2) is 30-40 ℃, and the mixing time is 10-15 minutes.
Preferably, in the step (4), the homogenizing pressure is 15-25 MPa, and the temperature is 50-65 ℃; the sterilization condition is that the temperature is 80-95 ℃ and the time is 30-40 seconds; the concentration of the solid matters of the concentrated milk obtained by concentration is 40-50 wt%; the spray drying is pressure spray drying, the feeding temperature of the pressure spray drying is 65-75 ℃, the air inlet temperature is 150-190 ℃, the air exhaust temperature is 68-85 ℃, and the pressure is 150-300 bar.
Preferably, in the step (6), the packaging step further includes vacuumizing or filling an inert gas into the packaging container, so that the amount of residual oxygen in the packaging container is less than 5%, wherein the inert gas is nitrogen or carbon dioxide, and the percentage is volume percentage.
On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The reagents and starting materials used in the present invention are commercially available.
The positive progress effects of the invention are as follows:
the novel infant formula milk powder is prepared by mixing edible plant blend oil, breast milk substitute fat (OPO) and milk fat in a certain proportion, and the similarity evaluation of fatty acid and breast milk is higher; the similarity evaluation of the main triglyceride and the breast milk is higher, and the difference between the infant formula milk powder and the breast milk in the aspects of components and functions is reduced.
Detailed Description
A novel infant formula milk powder with optimized fat composition comprises the following components in percentage by weight: 63.82-81.50% of cow milk, 0-16.30% of lactose, 4.2-20.76% of desalted whey powder, 0-3.71% of concentrated whey protein powder, 1.84-9.58% of edible plant blend oil, 0-4.19% of breast milk substitute fat, 1.31-1.99% of prebiotics, 0.20-0.84% of unsaturated fatty acids, 0.05-0.16% of infant vitamin premix, 0.22-0.54% of infant mineral premix, 0-0.04% of choline chloride, 0-0.02% of taurine, 0-0.01% of nucleotides and 0-0.01% of lutein.
In the novel infant formula milk powder with optimized fat composition, the raw milk is conventional raw milk in the field, wherein the raw milk preferably comprises skim milk and full-fat milk, and the content of the raw milk is 63.82-81.50%, preferably 64-81%, and more preferably 68% based on 100% of the infant formula milk powder; the content of the lactose is 0-16.30%, preferably 2-12%, and more preferably 6.6%; the content of the desalted whey powder is 4.2-20.76%, preferably 4.20-20%, and more preferably 20%; the content of the concentrated whey protein powder is 0-3.71%, preferably 1-3.2%, and more preferably 1.6%.
In the novel infant formula milk powder with optimized fat composition, the edible plant blend oil comprises one or more of coconut oil, corn oil, palm kernel oil, soybean oil, low erucic acid rapeseed oil, linseed oil and sunflower seed oil, and is preferably sunflower seed oil, coconut oil and linseed oil. The content of the edible vegetable blend oil is 1.84-9.58%, preferably 3.5-6.5%, and more preferably 5% based on 100% of the infant formula milk powder.
In the novel infant formula milk powder with optimized fat composition, the breast milk substitute fat comprises mixed oil of 1, 3-dioleoyl-2-palmitic acid triglyceride and 1-oleic acid-2-palmitic acid-3-linoleic acid triglyceride, wherein the content of the breast milk substitute fat is 0-4.19%, preferably 2.10-4.10%, and more preferably 3.20% by taking the percentage of the infant formula milk powder as 100%.
In the novel infant formula milk powder with optimized fat composition, the unsaturated fatty acid comprises docosahexaenoic acid (DHA) and arachidonic acid (ARA); the content of unsaturated fatty acid is 0.20-0.84% based on 100% of the infant formula, wherein the content of DHA in the docosahexaenoic acid is preferably 0.23-0.36%, and more preferably 0.30%; the content of arachidonic acid ARA is preferably 0.31-0.48%, and more preferably 0.40%.
In the novel infant formula milk powder with optimized fat composition, the prebiotics are one or two of galactooligosaccharides and polyfructose, preferably galactooligosaccharides, and the prebiotics content is 1.31-1.99%, preferably 1.5-1.8%, and more preferably 1.6% based on 100% of the infant formula milk powder.
In the novel infant formula milk powder with optimized fat composition, the infant vitamin premix is a conventional infant vitamin premix in the field, is generally prepared by compounding components such as vitamin A, vitamin D, vitamin E, vitamin K1, vitamin B1, vitamin B2, nicotinamide, pantothenic acid, vitamin B6, vitamin B12, folic acid, biotin, vitamin C and the like, and is used in infant formula food type products and mainly plays a role of a nutrition enhancer. The addition amount of the infant vitamin premix is the conventional addition amount in the field according with the corresponding national regulations. The preparation method of the infant vitamin premix is a conventional preparation method in the field or is commercially available. The infant vitamin premix comprises 0.05-0.16%, preferably 0.08-0.12%, and more preferably 0.10% of infant formula milk powder by weight of 100%.
In the novel infant formula milk powder with optimized fat composition, the infant mineral premix is a conventional infant mineral premix in the field, is generally compounded by ferrous gluconate, manganese sulfate, copper gluconate, zinc sulfate, sodium selenite, potassium iodide and other components, is used in infant formula food type products, mainly plays a role in nutrition fortification, and is in accordance with the national corresponding regulation and conventional addition in the field. The preparation method of the infant mineral premix is conventional in the art or is commercially available. The infant formula comprises 0.22-0.54% of infant formula premix, preferably 0.32-0.42%, and more preferably 0.37% of infant formula premix, wherein the percentage of infant formula is 100%.
The novel infant formula milk powder with optimized fat composition is further added with choline chloride, taurine, nucleotide and lutein, wherein the content of choline chloride is 0-0.04%, preferably 0.01-0.03%, and more preferably 0.02% by taking the percentage of the infant formula milk powder as 100%; the content of taurine is 0-0.02%, preferably 0.01%; the nucleotide content is 0-0.01%, preferably 0.005%; the xanthophyll content is 0-0.01%, preferably 0.005%.
The invention also provides a preparation method of the novel infant formula milk powder with the optimized fat composition, which comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing and completely dissolving cow milk, lactose, desalted whey powder, concentrated whey protein, prebiotics, infant vitamin premix, infant mineral premix, choline chloride and taurine to obtain feed liquid A;
(3) mixing and stirring the breast milk substitute fat and the edible plant blend oil, heating to 40-50 ℃, mixing the melted mixture into the feed liquid A, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B, sterilizing, concentrating, and spray drying to obtain material C;
(5) uniformly mixing the material C with docosahexaenoic acid (DHA), arachidonic acid (ARA), nucleotide and lutein at 25-30 ℃ under a relative humidity of 40-50%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
In the preparation method, after the raw milk in the step (1) is accepted, protein, fat and milk solids are strictly detected according to the technical requirements, and if the raw milk is not accepted, the raw milk is standardized. The raw milk comprises 2.95-3.10% of protein, 3.10-3.30% of fat and 11.7% of total solid.
In the preparation method, the mixing in the step (2) is to place the mixture into a mixing tank for mixing, wherein the temperature is 30-40 ℃, the preferred temperature is 35 ℃, and the mixing time is 10-15 minutes, and the preferred time is 12 minutes. And (3) injecting the breast milk substitute fat and the edible vegetable blend oil into the oiling cylinder, starting the stirrer, heating to 40-50 ℃, melting, and then injecting into the blending tank.
In the preparation method, in the step (4), the homogenization is conventional operation in the field, the homogenization pressure is 15-25 MPa, preferably 18-22 MPa, more preferably 20MPa, and the temperature is 50-65 ℃, preferably 55-60 ℃, more preferably 58 ℃; the sterilization is conventional operation in the field, such as pasteurization and ultra-high temperature sterilization, preferably, the sterilization condition is that the temperature is 80-95 ℃, preferably 85-90 ℃, more preferably 88 ℃, and the time is 30-40 seconds, preferably 33-38 seconds, more preferably 35 seconds; the concentration is conventional operation in the field, preferably a four-effect concentration process, and the solid concentration of the obtained concentrated milk is 40-50% (wt); the spray drying is a conventional operation in the field, preferably pressure spray drying, wherein the feeding temperature of the pressure spray drying is preferably 65-75 ℃, more preferably 70 ℃, the air inlet temperature is preferably 150-190 ℃, more preferably 160-180 ℃, most preferably 170 ℃, the air exhaust temperature is preferably 68-85 ℃, more preferably 72-80 ℃, most preferably 75 ℃, and the pressure is preferably 150-300 bar, more preferably 200-250 bar, most preferably 220 bar.
In the preparation method of the present invention, the mixing method in step (5) is a conventional operation in the art. The mixing method is preferably a two-stage or three-stage dilution method, i.e. first premixing with docosahexaenoic acid (DHA) and arachidonic acid (ARA) powder and nucleotides and lutein in a ratio of 1:10 by volume with the material C, and then performing a second stage dry mixing. Dry mixing and mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixed semi-finished product is stored in a closed temporary storage device; wherein the temperature of the blending is preferably 30 ℃ and the relative humidity is preferably 40%.
The preparation method of the invention also comprises a packaging step, wherein the packaging step is carried out by adopting a composite plastic container or an iron can for packaging and storing according to the conventional method in the field. The packaging step preferably further comprises vacuumizing or filling the packaging container with inert gas, wherein the residual oxygen content in the packaging container is less than 5%, the inert gas is inert gas which is conventional in the art, preferably nitrogen or carbon dioxide, and the percentage is volume percentage.
The present invention is described in further detail below by way of specific examples, but the present invention is not limited thereby within the scope of the examples. The experimental methods without specifying specific conditions in the following examples were selected according to the conventional methods and conditions, or according to the commercial instructions.
The starting materials in the following examples were all commercially available unless otherwise specified.
Example 1
Formula of infant formula milk powder (every 1000 g milk powder meter)
The preparation method comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing cow milk, desalted whey powder, galacto-oligosaccharide, infant vitamin premix, infant mineral premix, choline chloride and taurine in a mixing tank, and completely dissolving to obtain feed liquid A, wherein the temperature is controlled at 40 ℃, and the mixing time is 15 minutes;
(3) mixing the breast milk substitute fat and the edible plant blend oil, injecting the mixture into an oil adding cylinder, starting a stirrer, heating to 40 ℃, mixing the mixture into the feed liquid A after melting, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B at 15MPa and 50 ℃, sterilizing at 80 ℃ for 40 seconds, concentrating, and performing pressure spray drying to obtain a material C, wherein the feeding temperature of the pressure spray drying is 65 ℃, the air inlet temperature is 150 ℃, the air exhaust temperature is 68 ℃ and the pressure is 150 bar;
(5) mixing the material C with docosahexenoic acid fish oil powder, arachidonic acid grease, nucleotide and lutein according to the volume ratio of 10: 1 pre-mixing, followed by a second stage dry mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixture is uniformly mixed, wherein the uniformly mixing temperature is 25 ℃, and the relative humidity during the uniformly mixing is 40%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Example 2
Formula of infant formula milk powder (every 1000 g milk powder meter)
The preparation method comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing cow milk, lactose, desalted whey powder, concentrated whey protein, galacto-oligosaccharide, infant vitamin premix, infant mineral premix, choline chloride and taurine in a mixing tank, and completely dissolving to obtain feed liquid A, wherein the temperature is controlled at 30 ℃, and the mixing time is 10 minutes;
(3) mixing the breast milk substitute fat and the edible plant blend oil, injecting the mixture into a refueling cylinder, starting a stirrer, heating to 50 ℃, mixing the mixture into the feed liquid A after melting, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B at 20MPa and 55 ℃, sterilizing at 85 ℃ for 35 seconds, concentrating, and performing pressure spray drying to obtain a material C, wherein the feeding temperature of the pressure spray drying is 70 ℃, the air inlet temperature is 160 ℃, the air exhaust temperature is 75 ℃, and the pressure is 200 bar;
(5) mixing the material C with docosahexenoic acid fish oil powder, arachidonic acid grease, nucleotide and lutein according to the volume ratio of 10: 1 pre-mixing, followed by a second stage dry mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixture is uniformly mixed, wherein the uniformly mixing temperature is 30 ℃, and the relative humidity during the uniformly mixing is 45%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Example 3
Formula of infant formula milk powder (every 1000 g milk powder meter)
The preparation method comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing cow milk, lactose, desalted whey powder, concentrated whey protein, galacto-oligosaccharide, infant vitamin premix, infant mineral premix, choline chloride and taurine in a mixing tank, and completely dissolving to obtain feed liquid A, wherein the temperature is controlled at 35 ℃, and the mixing time is 12 minutes;
(3) mixing the breast milk substitute fat and the edible plant blend oil, injecting the mixture into an oil adding cylinder, starting a stirrer, heating to 45 ℃, mixing the mixture into the feed liquid A after melting, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B under 25MPa at 60 deg.C, sterilizing at 95 deg.C for 30 s, concentrating, and spray drying under pressure to obtain material C, wherein the feed temperature of the spray drying under pressure is 75 deg.C, the air intake temperature is 180 deg.C, the air exhaust temperature is 80 deg.C, and the pressure is 250 bar;
(5) mixing the material C with docosahexenoic acid fish oil powder, arachidonic acid grease, nucleotide and lutein according to the volume ratio of 10: 1 pre-mixing, followed by a second stage dry mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixture is uniformly mixed, wherein the uniformly mixing temperature is 30 ℃, and the relative humidity during the uniformly mixing is 50%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Comparative example 1
Formula of infant formula milk powder (every 1000 g milk powder meter)
The preparation method comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing cow milk, lactose, desalted whey powder, concentrated whey protein, galacto-oligosaccharide, infant vitamin premix and infant mineral premix in a mixing tank, and completely dissolving to obtain feed liquid A, wherein the temperature is controlled at 40 ℃, and the mixing time is 10 minutes;
(3) mixing the breast milk substitute fat and the edible plant blend oil, injecting the mixture into an oil adding cylinder, starting a stirrer, heating to 40 ℃, mixing the mixture into the feed liquid A after melting, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B under 15MPa at 65 deg.C, sterilizing at 95 deg.C for 40 s, concentrating, and spray drying under pressure to obtain material C, wherein the feed temperature of the spray drying under pressure is 65 deg.C, the air intake temperature is 150 deg.C, the air exhaust temperature is 68 deg.C, and the pressure is 150 bar;
(5) mixing the material C with docosahexenoic acid fish and arachidonic acid according to the volume ratio of 10: 1 pre-mixing, followed by a second stage dry mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixture is uniformly mixed, wherein the uniformly mixing temperature is 25 ℃, and the relative humidity during the uniformly mixing is 40%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Comparative example 2
Formula of infant formula milk powder (every 1000 g milk powder meter)
The preparation method comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing cow milk, lactose, desalted whey powder, concentrated whey protein, galacto-oligosaccharide, infant vitamin premix and infant mineral premix in a mixing tank, and completely dissolving to obtain feed liquid A, wherein the temperature is controlled at 30 ℃, and the mixing time is 10 minutes;
(3) mixing the breast milk substitute fat and the edible plant blend oil, injecting the mixture into an oil adding cylinder, starting a stirrer, heating to 40 ℃, mixing the mixture into the feed liquid A after melting, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B under 15MPa at 60 deg.C, sterilizing at 80 deg.C for 30 s, concentrating, and spray drying under pressure to obtain material C, wherein the feed temperature of the spray drying under pressure is 65 deg.C, the air intake temperature is 150 deg.C, the air exhaust temperature is 68 deg.C, and the pressure is 150 bar;
(5) mixing the material C with docosahexenoic acid fish and arachidonic acid grease according to the volume ratio of 10: 1 pre-mixing, followed by a second stage dry mixing: the dry mixing operation time is 2min, the rotating speed is 1460r/min, and the mixture is uniformly mixed, wherein the uniformly mixing temperature is 25 ℃, and the relative humidity during the uniformly mixing is 40%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
Effect example 1:
the product evaluations were performed for examples 1 to 3 and comparative examples 1 to 2.
The evaluation mode is that the fatty acid in the obtained product is detected and analyzed by a gas chromatograph Agilent 7820A. The major triglyceride composition (%) of the product was subjected to reverse phase high performance liquid chromatography (RP-HPLC). The evaluation results are shown in tables 1 and 2.
TABLE 1 main fatty acid composition (%)
| Fatty acids | Example 1 | Example 2 | Example 3 | Comparative example 1 | Comparative example 2 | Scope of breast milk |
| C8：0 | 0.50 | 0.49 | 0.47 | 0.60 | 0.56 | 0.03-0.33 |
| C10：0 | 0.88 | 0.86 | 0.72 | 0.36 | 1.03 | 0.06-2.21 |
| C12：0 | 2.94 | 2.88 | 2.94 | 6.02 | 5.13 | 1.19-8.51 |
| C14：0 | 3.57 | 3.64 | 3.34 | 4.14 | 5.44 | 2.22-7.93 |
| C16：0 | 22.60 | 22.96 | 22.78 | 23.18 | 24.52 | 15.07-22.62 |
| C16：1 | 0.48 | 0.52 | 0.49 | 0.24 | 0.17 | 0.98-2.39 |
| C18：0 | 5.56 | 5.43 | 5.17 | 3.52 | 4.02 | 3.67-8.32 |
| C18：1 | 37.79 | 35.72 | 38.10 | 39.42 | 38.75 | 26.04-37.27 |
| C18：2 | 21.15 | 21.06 | 21.56 | 16.78 | 17.13 | 17.19-25.52 |
| C18：3 | 1.86 | 1.81 | 1.86 | 1.40 | 0.85 | 0.68-1.73 |
| C20：1 | 0.15 | 0.14 | 0.14 | 0.13 | 0.20 | 0.22-1.15 |
| C20：4 | 0.56 | 0.68 | 0.60 | 0.24 | 0.26 | 0.37-1.31 |
| C22：6 | 0.29 | 0.32 | 0.30 | 0.14 | 0.18 | 0.22-0.95 |
TABLE 2 Primary fatty acid composition (%)
The similarity of lipid breast milk of the infant formula milk powder was evaluated by referring to the breast milk-substituted lipid similarity evaluation method, and the results are shown in table 3. Namely, the breast milk fatty acid or triglyceride component is taken as a standard, the similarity coefficient is taken as an index, and the optimal value distance method is taken as a model. The similarity evaluation formula is as follows:
g similarity coefficient; ai is the breast milk fatty acid or triglyceride range; bi is a detection index of fatty acid or triglyceride of milk powder; n is the number of fatty acid or triglyceride types.
TABLE 3 comparison of the evaluation of similarity between examples and comparative examples
The determination result shows that the similarity evaluation of the fatty acid and the breast milk is higher by adopting the novel infant formula milk powder which is prepared by mixing edible plant blend oil (sunflower seed oil, coconut oil and linseed oil), breast milk substitute fat (OPO) and milk fat in a certain proportion; the similarity of major triglycerides to breast milk was also evaluated higher.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The novel infant formula milk powder with the optimized fat composition is characterized by comprising the following components in percentage by weight: 63.82-81.50% of cow milk, 0-16.30% of lactose, 4.2-20.76% of desalted whey powder, 0-3.71% of concentrated whey protein powder, 1.84-9.58% of edible plant blend oil, 0-4.19% of breast milk substitute fat, 1.31-1.99% of prebiotics, 0.20-0.84% of unsaturated fatty acids, 0.05-0.16% of infant vitamin premix, 0.22-0.54% of infant mineral premix, 0-0.04% of choline chloride, 0-0.02% of taurine, 0-0.01% of nucleotides and 0-0.01% of lutein.
2. The new infant milk formula with optimized fat composition as claimed in claim 1, wherein said edible vegetable blend oil comprises one or more of coconut oil, corn oil, palm kernel oil, soybean oil, canola oil, linseed oil, sunflower oil.
3. The novel infant formula with optimized fat composition as claimed in claim 1, wherein the breast milk substitute fat comprises mixed fat of 1, 3 dioleic acid-2-palmitic acid triglyceride and 1-oleic acid-2 palmitic acid-3-linoleic acid triglyceride.
4. Novel infant formula with optimized fat composition according to claim 1, characterized in that said unsaturated fatty acids comprise docosahexaenoic acid DHA and arachidonic acid ARA; wherein the content of DHA is 0.23-0.36%; the content of arachidonic acid ARA is 0.31-0.48%.
5. Novel infant milk formula with optimized fat composition according to claim 1, characterized by that the prebiotics are one or both of galactooligosaccharides and polyfructose.
6. A process for the preparation of a novel infant formula with optimized fat composition according to any one of claims 1 to 5, characterized in that it comprises the following steps:
(1) checking and accepting cow milk and standardizing;
(2) uniformly mixing and completely dissolving cow milk, lactose, desalted whey powder, concentrated whey protein, prebiotics, infant vitamin premix, infant mineral premix, choline chloride and taurine to obtain feed liquid A;
(3) mixing and stirring the breast milk substitute fat and the edible plant blend oil, heating to 40-50 ℃, mixing the melted mixture into the feed liquid A, and uniformly mixing to obtain feed liquid B;
(4) homogenizing the obtained feed liquid B, sterilizing, concentrating, and spray drying to obtain material C;
(5) uniformly mixing the material C with docosahexaenoic acid (DHA), arachidonic acid (ARA), nucleotide and lutein at 25-30 ℃ under a relative humidity of 40-50%;
(6) and packaging and storing by adopting a composite plastic container or an iron can.
7. The method for preparing the novel infant formula milk powder with the optimized fat composition as claimed in claim 6, wherein the approved milk obtained in step (1) contains 2.95-3.10% of protein, 3.10-3.30% of fat and 11.7% of total solids.
8. The method for preparing a novel infant formula with optimized fat composition according to claim 6, wherein the mixing temperature in step (2) is 30-40 ℃ and the mixing time is 10-15 minutes.
9. The method for preparing the novel infant formula with optimized fat composition according to claim 6, wherein in the step (4), the homogenizing pressure is 15-25 MPa, and the temperature is 50-65 ℃; the sterilization condition is that the temperature is 80-95 ℃ and the time is 30-40 seconds; the concentration of the solid matters of the concentrated milk obtained by concentration is 40-50 wt%; the spray drying is pressure spray drying, the feeding temperature of the pressure spray drying is 65-75 ℃, the air inlet temperature is 150-190 ℃, the air exhaust temperature is 68-85 ℃, and the pressure is 150-300 bar.
10. The method of claim 6, wherein in step (6), the packaging step further comprises evacuating the container or filling the container with an inert gas, wherein the inert gas is nitrogen or carbon dioxide, and the percentage is volume percentage, so that the amount of residual oxygen in the container is less than 5%.
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| CN102422900A (en) * | 2011-11-24 | 2012-04-25 | 黑龙江飞鹤乳业有限公司 | Formula milk powder for promoting absorption of fatty acid and calcium and preparation method thereof |
| CN109275729A (en) * | 2018-11-12 | 2019-01-29 | 黑龙江飞鹤乳业有限公司 | A kind of preparation method for compounding grease and infant formula goat milk powder and the milk powder containing the compounding grease of simulation breast milk fatty acids |
| CN112602783A (en) * | 2020-12-29 | 2021-04-06 | 光明乳业股份有限公司 | Infant formula milk powder and preparation method thereof |
| CN112931628A (en) * | 2021-03-26 | 2021-06-11 | 东北农业大学 | Liposome simulating breast milk lipid structure, formula powder for premature infant and preparation method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102422900A (en) * | 2011-11-24 | 2012-04-25 | 黑龙江飞鹤乳业有限公司 | Formula milk powder for promoting absorption of fatty acid and calcium and preparation method thereof |
| CN109275729A (en) * | 2018-11-12 | 2019-01-29 | 黑龙江飞鹤乳业有限公司 | A kind of preparation method for compounding grease and infant formula goat milk powder and the milk powder containing the compounding grease of simulation breast milk fatty acids |
| CN112602783A (en) * | 2020-12-29 | 2021-04-06 | 光明乳业股份有限公司 | Infant formula milk powder and preparation method thereof |
| CN112931628A (en) * | 2021-03-26 | 2021-06-11 | 东北农业大学 | Liposome simulating breast milk lipid structure, formula powder for premature infant and preparation method |
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