CN116268113A - Infant nutrition composition containing human milk oligosaccharide - Google Patents

Infant nutrition composition containing human milk oligosaccharide Download PDF

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Publication number
CN116268113A
CN116268113A CN202310320034.8A CN202310320034A CN116268113A CN 116268113 A CN116268113 A CN 116268113A CN 202310320034 A CN202310320034 A CN 202310320034A CN 116268113 A CN116268113 A CN 116268113A
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human milk
milk oligosaccharide
powder
infant nutrition
nutrition composition
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李朝旭
申雪然
王丽然
张天博
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HEBEI SANYUAN FOOD CO Ltd
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HEBEI SANYUAN FOOD CO Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00Whey; Whey preparations
    • A23C21/06Mixtures of whey with milk products or milk components
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00Whey; Whey preparations
    • A23C21/04Whey; Whey preparations containing non-milk components as source of fats or proteins
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00Whey; Whey preparations
    • A23C21/08Whey; Whey preparations containing other organic additives, e.g. vegetable or animal products
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C21/00Whey; Whey preparations
    • A23C21/10Whey; Whey preparations containing inorganic additives

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Abstract

The invention provides an infant nutrition composition containing human milk oligosaccharide, and belongs to the technical field of infant nutrition processing. The human milk oligosaccharide in the infant nutrition composition consists of neutral human milk oligosaccharide and acidic human milk oligosaccharide, wherein the weight ratio of the neutral human milk oligosaccharide to the acidic human milk oligosaccharide is 61-63:37-39; wherein the neutral human milk oligosaccharide is any one or two of 2 '-fucosyllactose (2' -FL) and 3-fucosyllactose (3-FL); the acidic human milk oligosaccharide is one or two of 6 '-sialyllactose (6' -SL) and sialic acid. The infant nutrition composition contains human milk oligosaccharide which is more similar to breast milk, can better play roles in proliferating probiotics, improving intestinal flora balance and improving intestinal health, inhibiting pathogen growth, regulating immunity, promoting brain development and the like.

Description

Infant nutrition composition containing human milk oligosaccharide
The application is a divisional application of a patent application named as 'infant nutrition composition containing human milk oligosaccharide', the application date of the original application is 2019, 12, 19 and 201911316805.6.
Technical Field
The invention relates to the technical field of infant nutrition processing, in particular to an infant nutrition composition containing human milk oligosaccharide.
Background
Breast milk, which is the only substance and energy tie associated with the mother after birth of a newborn, plays a very important biological role due to the long-term natural selection effect. Breast milk is the best source of nutrition for infants, and breast feeding produces long-lasting beneficial health effects on both the mother and child. In the aspect of infants, breast milk not only can meet the material and energy requirements of newborns in the growth and development process, but also plays an essential role in early development of a digestive system, perfection of a postnatal immune system, establishment of ecological balance in vivo and the like, besides, breast feeding can promote emotional communication between mother and child, promote physical and psychological development of infants, reduce incidence rate of nutritional related chronic diseases in the adult and the like. In terms of mother, breast-fed infants can accelerate the recovery of their postpartum bodies, consume fat stored in the pregnant women, prevent postpartum obesity, reduce the risk of diseases and the like.
Milk protein is one of the most important nutrients in milk, and its content and composition ratio are important indicators for determining the quality of milk, and are the most studied ones so far. The reduction of the total protein content of infant formula is beneficial to preventing chronic diseases while ensuring the health of infants, but the feeding effect of human milk is still difficult to achieve by the method. Human milk also contains a variety of active substances. Wherein, human Milk Oligosaccharides (HMOs) are the third largest nutrient next to lactose and fat in breast milk, which are not destroyed by gastric acid of human body and decomposed by digestive enzymes, and can directly reach large intestine, stimulate the growth of beneficial flora such as bifidobacteria and lactobacillus in intestinal tract, indirectly inhibit the growth of harmful flora and maintain microecological balance of intestinal tract.
The content of oligosaccharide in breast milk is high, the oligosaccharide can be secreted in the whole lactation period, wherein the content of colostrum is the most abundant, about 10-20 g/L, and the content of mature milk is the lowest, about 5-10 g/L. The content of oligosaccharides in the mother of the premature infant is higher than that in the mother of the term infant. The oligosaccharide component of breast milk is affected by a number of factors, such as: genetic factors, lactation stage, environmental factors, and the like. In addition, studies have shown that the composition of oligosaccharides in breast milk depends on the genes of breast milk. The amount of oligosaccharides contained in human milk is 10 to 100 times higher than that of other mammals. More than 200 oligosaccharides in human breast milk and more than 50 oligosaccharides in cow milk have been identified and are present in very small amounts, as shown in the table below.
The content of macronutrients and HMOs in mature breast milk and cow milk is about
Nutritional ingredients Human milk Cow milk
protein/(g/L) 8 32
fat/(g/L) 41 37
lactose/(g/L) 70 48
oligosaccharide/(g/L) 5~15 0.05
Defined oligosaccharide species 100+ ~40
Ratio of fucosylation/% 50~80 ~1
Sialylation ratio/% 10~20 ~70
With the development of novel analytical techniques, the structure of human milk oligosaccharides is increasingly known. The structurally complex and diverse human milk oligosaccharides consist of 5 basic monomers, D-glucose (Glc), D-galactose (Gal), N-acetylglucosamine (GlcNAc), L-fucose (Fuc) and sialic acid (N-acetylneuraminic acid, neu5 AC), respectively. Despite the structural diversity of human milk oligosaccharides, the population can be divided into two categories: when Gal (. Beta.1-3) GlcNAc disaccharide units or Gal (. Beta.1-4) GlcNAc disaccharide units are linked to lactose as. Beta.1-3-or. Beta.1-6-glycosidic linkages, form type I and type II structures, respectively. Furthermore, the core structure formed by lactose or an extended chain may be modified by fucosylation with α1-2-, α1-3-and α1-4-glycosidic bonds, and sialylation with α2-3-, α2-6-glycosidic bonds, respectively. Up to now, over 200 structures have been found, all varying on the basis of the above core structure. As shown in fig. 1.
The structure of the human milk oligosaccharide is complex and various due to the different connection modes of the monosaccharide and the glycosidic bond of the human milk oligosaccharide. The diversity of structures determines the diversity of their biological functions. It was first discovered as a prebiotic effect and was believed to promote bifidobacteria proliferation, but more and more studies have found that human milk oligosaccharides not only act as substances promoting the growth of beneficial intestinal flora, but also exert and support more and more complex biological functions in different ways, for example: inhibiting pathogen growth, regulating immunity, promoting brain development, and other effects. But on the basis of the discovered series of biological functions, more potential biological significance remains to be explored and demonstrated.
Disclosure of Invention
In order to solve the technical problems, the invention provides an infant nutrition composition containing human milk oligosaccharide, which contains human milk oligosaccharide, has the species and content of human milk oligosaccharide more similar to those of breast milk, and has the effects of better proliferating probiotics, improving intestinal flora balance and improving intestinal health, inhibiting pathogen growth, regulating immunity, promoting brain development and the like.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention provides an infant nutrition composition containing human milk oligosaccharide, wherein the total content of the human milk oligosaccharide is 2.3-30.8g/kg, the human milk oligosaccharide consists of neutral human milk oligosaccharide and acidic human milk oligosaccharide, and the weight ratio of the neutral human milk oligosaccharide to the acidic human milk oligosaccharide is 60-70:30-40 parts;
wherein the neutral human milk oligosaccharide is any one or two of 2 '-fucosyllactose (2' -FL) and 3-fucosyllactose (3-FL);
the acidic human milk oligosaccharide is one or two of 6 '-sialyllactose (6' -SL) and sialic acid.
The infant nutrition composition of the present invention further includes a protein.
Proteins include alpha-whey protein powder and enzymatically hydrolyzed whey protein powder; the weight content of the alpha-lactalbumin in the alpha-lactalbumin powder is 21-88 percent.
The preferred alpha-lactalbumin powder has an alpha-lactalbumin content of 80-88% by weight, and in this case the alpha-lactalbumin powder has a tryptophan content of 35-50mg per gram of protein.
The amino acid nitrogen in the enzyme hydrolyzed whey protein powder accounts for 9-15% of the total nitrogen proportion, and the mass ratio of the amino acid nitrogen with the molecular weight smaller than 1000Da is 35-45%.
The infant nutrition composition comprises the following protein components in percentage by weight: 1500-2000g/kg raw milk, 120-275g/kg desalted whey powder, 25-50g/kg enzymatically hydrolyzed whey protein powder, 9-3015-25g/kg alpha-whey protein powder.
The infant nutrition composition has the protein content of 9.5-12.6g/100g and the tryptophan content of 0.17-0.21g/100g; the enzyme hydrolyzes whey protein to 25-50% of the weight of whey protein; the content of alpha-lactalbumin is 1.5-3.0g/100g, accounting for 21-41% of the weight of the lactalbumin.
The infant nutrition composition of the present invention may be liquid, powder or solid.
The infant nutrition composition of the present invention may further comprise a prebiotic composition comprising one or more of galacto-oligosaccharides, fructo-oligosaccharides or isomerized lactose.
The infant nutrition composition of the invention can be further added with vegetable oil, wherein the vegetable oil is one or more of sunflower seed oil, soybean oil, corn oil, coconut oil, high oleic acid sunflower seed oil, rapeseed oil or palm oil, and the fat index is 200-280 g/kg.
The carbohydrate of the infant nutrition composition of the invention is derived from lactose, solid corn syrup or maltodextrin, and the carbohydrate index is 520-580g/kg.
The content of galactooligosaccharide in the infant nutrition combination is 60-85g/kg.
The infant nutrition composition also comprises 10.2-28.5g/kg of docosahexaenoic acid, 7.7-30.2g/kg of arachidonic acid, 0.38-0.52g/kg of taurine, 1.1-4.6g/kg of choline chloride, 0.027-0.037g/kg of lutein, 2.15-2.85g/kg of compound vitamin, 10.65-14.35g/kg of compound mineral substance, 0.47-0.63g/kg of compound nucleotide and 0.45-1.05g/kg of lactoferrin.
The compound nucleotide comprises the following components in parts by weight: 51.5% of cytidine acid, 13.1% of adenylate, 6.6% of guanylate, 19.6% of uridylate and 9.2% of inosinic acid.
The content of each component in each ton of compound mineral is as follows: 2885-3900g of calcium carbonate, 1878-2541g of calcium hydrophosphate, 8-11g of copper sulfate, 1985-2685g of potassium chloride, 73-99g of potassium iodate, 134-182g of ferrous sulfate, 981-1327g of magnesium sulfate, 13-18g of manganese sulfate, 19-26g of sodium selenite, 98-133g of zinc sulfate and 1115-1509g of sodium chloride.
The infant nutrition composition containing human milk oligosaccharide can optimize the structure of intestinal flora and the composition and content of short chain fatty acid in intestinal tract, thereby enhancing the immunity and the comprehensive function of the organism.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in:
(1) The composition contains human milk oligosaccharide, wherein the type and the content of the human milk oligosaccharide are more similar to those of breast milk, and the composition can better play roles in proliferating probiotics, improving intestinal flora balance and intestinal health, inhibiting pathogen growth, regulating immunity, promoting brain development and the like.
(2) The invention adds high-content alpha-lactalbumin powder, reduces the total protein and improves the content of alpha-lactalbumin and tryptophan in the product, wherein the tryptophan is the first limiting amino acid of the infant formula powder, is a precursor substance for synthesizing the neuromediator 5-hydroxytryptamine, and the lack of the tryptophan can influence conscious behaviors and sleeping conditions. The alpha-lactalbumin powder is rich in tryptophan, lysine and cysteine, and can ensure the concentration of essential amino acids in the blood of infants. Feeding trials have found that infants fed low total protein content but enriched with alpha-lactalbumin formula have a closer to breast fed infants in plasma levels of essential amino acids, gastrointestinal tolerability and growth patterns. The amino acid composition of the formula is optimized by the alpha-lactalbumin powder so that the formula is more similar to breast milk.
(3) The high-quality protein composition comprises enzyme hydrolyzed whey protein powder, and adopts a protease hydrolysis technology to hydrolyze macromolecular whey protein into micromolecular fragments which are easier to digest and absorb, so that gastrointestinal load of infants is effectively reduced. By observing the effect of hydrolyzed whey protein on nitrogen metabolism in growing rats, it was shown that: the hydrolyzed whey protein is superior to the concentrated whey protein in terms of body absorption and digestion, etc.
In summary, the composition is infant formula powder, which takes raw cow milk and whey powder as main raw materials, and particularly is added with alpha-whey protein powder, enzymatic hydrolysis whey protein powder and human milk oligosaccharide composition, so that the protein content is reduced, and the amino acid composition and the content are ensured to be close to that of breast milk. And meanwhile, a proper amount of mixed vegetable oil, lactose, vitamins, minerals, 5 nucleotides and other nutritional ingredients required by infants are added to prepare the composition, so that the composition is comprehensive and balanced in nutrition and is more similar to breast milk.
Drawings
Fig. 1 is a linear core structure of human milk oligosaccharide and its complex branched structure.
Detailed Description
Example 1
An infant nutrition composition (powder) containing human milk oligosaccharide, the composition of each component is shown in table 1 below:
TABLE 1
Figure BDA0004151357060000041
Figure BDA0004151357060000051
Wherein the compound nucleotide comprises 5 nucleotides, wherein cytidine acid accounts for 51.5%, adenylate accounts for 13.1%, guanylate accounts for 6.6%, uridylate accounts for 19.6%, and inosinic acid accounts for 9.2%.
The compounded minerals are specifically shown in the following table 2:
TABLE 2
Figure BDA0004151357060000052
Figure BDA0004151357060000061
The specific vitamin formulations are shown in Table 3 below:
TABLE 3 Table 3
Vitamin name Ton powder dosage, g
Vitamin C 1320-1750
dl-alpha-tocopheryl acetate 284-384
Retinyl acetate 54-73
D-pantothenic acid calcium salt 47-63
Nicotinamide 45-61
Cholecalciferol 40-55
Biotin 26-36
Cyanocobalamine 24-33
Plant menadione 15-21
Folic acid 14-19
Thiamine hydrochloride 9-12
Pyridoxine hydrochloride 6-8
Riboflavin 6-8
The essential and semi-essential amino acid levels of the product are shown in Table 4 below:
TABLE 4 Table 4
Figure BDA0004151357060000062
Figure BDA0004151357060000071
The preparation process of the invention is as follows (wet process):
A. taking the treated purified water as production water;
B. checking and accepting raw milk, sterilizing, and then pasteurizing at 85-90 ℃;
C. pumping pasteurized milk and water into a wet mixing tank, and preheating to 40-42 ℃;
D. adopting cyclic powder for batching;
E. when the vacuum degree of the vacuum batching tank reaches 400mbar, the production liquid level reaches 1000Kg, and the melting temperature reaches 20-45 ℃, the powder raw materials are added into the vacuum batching tank: desalted whey powder, whey protein powder, lactose, etc.;
F. metering the required oil, and starting stirring after the oil metering is finished, and waiting for adding; when the temperature of the material reaches 35 ℃, oil starts to be added into the material;
G. adding galacto-oligosaccharides to the material;
H. dissolving vitamins and minerals in 400Kg hot water at 37deg.C, and adding into the materials;
I. after the addition of the raw materials and the auxiliary materials is finished, the circulation is started for 10 minutes, and the temperature is controlled at 40-42 ℃;
J. the homogenizing temperature is required to be 30-40 ℃ and the homogenizing pressure is required to be: 100bar to 180bar;
K. sterilizing and concentrating the materials, wherein the sterilizing temperature is as follows: 87-90 ℃; negative pressure of the effective body is-0.7 bar to-1.0 bar;
l, preheating the concentrated milk at 66-70 ℃;
m, spray drying, wherein the main air inlet temperature is 165-200 ℃ and the air exhaust temperature is 85-95 ℃;
n, cooling by adopting a fluidized bed; static fluidized bed wind temperature: 60-90 ℃, and the temperature of the first and second sections of wind of the dynamic fluidized bed: 30-60 ℃ and three-stage wind temperature: 10-30 ℃.
Another preparation process of the invention is as follows (dry-wet process):
A. taking the treated purified water as production water;
B. checking and accepting raw milk, sterilizing, and then pasteurizing at 85-90 ℃;
C. pumping pasteurized milk and water into a wet mixing tank, and preheating to 40-42 ℃;
D. adopting cyclic powder for batching;
E. when the vacuum degree of the vacuum batching tank reaches 400mbar, the production liquid level reaches 1000Kg, and the melting temperature reaches 20-45 ℃, the powder raw materials are added into the vacuum batching tank: desalted whey powder, whey protein powder, lactose, etc.;
F. metering the required oil, and starting stirring after the oil metering is finished, and waiting for adding; when the temperature of the material reaches 35 ℃, oil starts to be added into the material;
G. adding galacto-oligosaccharides to the material;
H. dissolving vitamins and minerals in 400Kg hot water at 37deg.C, and adding into the materials;
I. after the addition of the raw materials and the auxiliary materials is finished, the circulation is started for 10 minutes, and the temperature is controlled at 40-42 ℃;
J. the homogenizing temperature is required to be 30-40 ℃ and the homogenizing pressure is required to be: 100bar to 180bar;
K. sterilizing and concentrating the materials, wherein the sterilizing temperature is as follows: 87-90 ℃; negative pressure of the effective body is-0.7 bar to-1.0 bar;
l, preheating the concentrated milk at the preheating temperature of 68-76 ℃;
m, spray drying, wherein the main air inlet temperature is 165-200 ℃ and the air exhaust temperature is 85-95 ℃;
n, cooling by adopting a fluidized bed; static fluidized bed wind temperature: 60-90 ℃, and the temperature of the first and second sections of wind of the dynamic fluidized bed: 30-60 ℃ and three-stage wind temperature: 10-30 ℃.
O, dry blending and adding human milk oligosaccharide, DHA, ARA, nucleotide and lactoferrin.
Example 2
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 5 below:
TABLE 5
Figure BDA0004151357060000081
Figure BDA0004151357060000091
The compound nucleotide, compound vitamin and compound mineral data are the same as in example 1, and the preparation process is the same as in example 1.
Example 3
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 6 below:
TABLE 6
Figure BDA0004151357060000092
Figure BDA0004151357060000101
Raw material names (kg) raw cow milk 1700 desalted whey powder 120 enzyme hydrolyzed whey protein powder 25 alpha-whey protein compound nucleotide, compound vitamin and compound mineral data used in each ton of composition are the same as in example 1, and the preparation process is the same as in example 1.
Example 4
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 7 below:
TABLE 7
Raw material name The amount of the composition per ton (kg)
Raw milk 1850
Desalted whey powder 120
Enzymatic hydrolysis of whey protein powder 50
Alpha-lactalbumin powder 15
Vegetable oil 205
Lactose and lactose 285
Galacto-oligosaccharides 75
3-fucosyllactose 1.92
6' -sialyllactose 0.33
Sialic acid 0.85
Taurine 0.48
L-carnitine tartrate 0.15
Lutein 0.03
Choline chloride 1.5
Compound nucleotide 0.55
Compound vitamin 2.5
Compound mineral 12
Lactoferrin protein 0.65
Docosahexaenoic acid (DHA) powder 12
Arachidonic acid (ARA) powder 18
The compound nucleotide, compound vitamin and compound mineral data are the same as in example 1, and the preparation process is the same as in example 1.
Example 5
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 8 below:
TABLE 8
Raw material name The amount of the composition per ton (kg)
Raw milk 1500
Desalted whey powder 125
Enzymatic hydrolysis of whey protein powder 20
Alpha-lactalbumin powder 25
Vegetable oil 220
Lactose and lactose 335
Galacto-oligosaccharides 75
2' -fucosyllactose 1.8
Sialic acid 1.2
Taurine 0.45
L-carnitine tartrate 0.15
Lutein 0.03
Choline chloride 1.5
Compound nucleotide 0.55
Compound vitamin 2.5
Compound mineral 12
Lactoferrin protein 0.7
Docosahexaenoic acid (DHA) powder 12
Arachidonic acid (ARA) powder 10
The compound nucleotide, compound vitamin and compound mineral data are the same as in example 1, and the preparation process is the same as in example 1.
Example 6
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 9 below:
TABLE 9
Figure BDA0004151357060000111
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Figure BDA0004151357060000121
The compound nucleotide, compound vitamin and compound mineral data are the same as in example 1, and the preparation process is the same as in example 1.
Example 7
An infant nutrition composition (powder) containing human milk oligosaccharides, the composition of each component is shown in table 10 below:
table 10
Figure BDA0004151357060000122
/>
Figure BDA0004151357060000131
The compound nucleotide, compound vitamin and compound mineral data are the same as in example 1, and the preparation process is the same as in example 1.
Example 8
An infant nutrition composition containing human milk oligosaccharide can be used as infant nutrition supplement, and comprises lactose, 2' -fucosyllactose and sialic acid at a mass ratio of 485:9:6.
Example 9
An infant nutrition composition containing human milk oligosaccharide can be used as infant nutrition supplement, and comprises lactose, 2 '-fucosyllactose, lactose-N-neotetraose and sialic acid, wherein the mass ratio of lactose, 2' -fucosyllactose, lactose-N-neotetraose and sialic acid is 970:18:3:9.
In summary, the product of the invention takes raw cow milk and whey powder as main raw materials, and particularly the alpha-whey protein powder, the enzymatic hydrolysis whey protein powder and the human milk oligosaccharide composition are added, so that the amino acid composition and the amino acid content can be ensured to be close to that of breast milk while the protein content is reduced. And meanwhile, a proper amount of mixed vegetable oil, lactose, vitamins, minerals, 5 nucleotides and other nutritional ingredients required by infants are added to prepare the composition, so that the composition is comprehensive and balanced in nutrition and is more similar to breast milk. So that the effects of proliferation of probiotics, improving balance of intestinal flora, improving intestinal health, inhibiting pathogen growth, regulating immunity, promoting brain development and the like can be better achieved.

Claims (8)

1. An infant nutrition composition comprising human milk oligosaccharides, characterized in that:
the total content of human milk oligosaccharide in the infant nutrition composition is 2.86-3.1g/kg; the human milk oligosaccharide consists of neutral human milk oligosaccharide and acidic human milk oligosaccharide; the neutral human milk oligosaccharide is any one or two of 2 '-fucosyllactose (2' -FL) and 3-fucosyllactose (3-FL); the acidic human milk oligosaccharide is one or two of 6 '-sialyllactose (6' -SL) and sialic acid; the weight ratio of the neutral human milk oligosaccharide to the acidic human milk oligosaccharide is 61-63:37-39;
the infant nutrition composition also comprises protein; the protein comprises the following components in percentage by weight: 1700-1850g/kg raw milk, 115-125g/kg desalted whey powder, 25-50g/kg enzymatically hydrolyzed whey protein powder, 15-25g/kg alpha-whey protein powder; amino acid nitrogen in the enzymatic hydrolysis whey protein powder accounts for 9-15% of the total nitrogen proportion range, and the mass ratio of the molecular weight of less than 1000Da is 35-45%; the weight content of the alpha-lactalbumin in the alpha-lactalbumin powder is 80-88%, and the tryptophan content in each gram of protein is 35-50mg.
2. The infant nutritional composition of claim 1, wherein:
the infant nutrition composition also comprises the following components: 205-210g/kg of vegetable oil, 285-313g/kg of lactose, 70-80g/kg of galactooligosaccharide, 0.45-0.48g/kg of taurine, 0.10-0.20g/kg of L-carnitine tartrate, 0.02-0.04g/kg of lutein, 1.4-1.6g/kg of choline chloride, 0.50-0.60g/kg of compound nucleotide, 2.4-2.6g/kg of compound vitamin, 11-13g/kg of compound mineral, 0.6-0.7g/kg of lactoferrin, 11-13g/kg of docosahexaenoic acid (DHA) powder and 16-20g/kg of arachidonic acid (ARA) powder.
3. The infant nutrition composition of claim 2, wherein:
the total content of human milk oligosaccharide in the infant nutrition composition is 2.86g/kg; the human milk oligosaccharide consists of neutral human milk oligosaccharide and acidic human milk oligosaccharide; the neutral human milk oligosaccharide is 2 '-fucosyllactose (2' -FL) and 3-fucosyllactose (3-FL), and the content of the two is 1.62g/kg and 0.18g/kg respectively; the acidic human milk oligosaccharide is 6 '-sialyllactose (6' -SL) with the content of 1.06g/kg;
the infant nutrition composition also comprises protein; the protein comprises the following components in percentage by weight: 1700g/kg raw cow milk, 120g/kg desalted whey powder, 25g/kg enzymatically hydrolyzed whey protein powder, 25g/kg alpha-whey protein powder; amino acid nitrogen in the enzymatic hydrolysis whey protein powder accounts for 9-15% of the total nitrogen proportion range, and the mass ratio of the molecular weight of less than 1000Da is 35-45%; the weight content of the alpha-lactalbumin in the alpha-lactalbumin powder is 80-88%, and the tryptophan content in each gram of protein is 35-50mg.
4. The infant nutrition composition of claim 2, wherein:
the total content of human milk oligosaccharide in the infant nutrition composition is 3.1g/kg; the human milk oligosaccharide consists of neutral human milk oligosaccharide and acidic human milk oligosaccharide; the neutral human milk oligosaccharide is 3-fucosyllactose (3-FL) with the content of 1.92g/kg; the acidic human milk oligosaccharide is 6' -sialyllactose (6 ' -SL) and sialic acid, and the content of the 6' -sialyllactose and the sialic acid is 0.33g/kg and 0.85g/kg respectively;
the infant nutrition composition also comprises protein; the protein comprises the following components in percentage by weight: 1850g/kg raw milk, 120g/kg desalted whey powder, 50g/kg enzymatically hydrolyzed whey protein powder, 15g/kg alpha-whey protein powder; amino acid nitrogen in the enzymatic hydrolysis whey protein powder accounts for 9-15% of the total nitrogen proportion range, and the mass ratio of the molecular weight of less than 1000Da is 35-45%; the weight content of the alpha-lactalbumin in the alpha-lactalbumin powder is 80-88%, and the tryptophan content in each gram of protein is 35-50mg.
5. The infant nutrition composition of claim 2, wherein:
the compound nucleotide comprises 5 nucleotides, wherein cytidine acid accounts for 51.5%, adenylate accounts for 13.1%, guanylate accounts for 6.6%, uridylate accounts for 19.6%, and inosinic acid accounts for 9.2%.
6. The infant nutrition composition of claim 2, wherein:
the specific table of the compound vitamins is as follows:
vitamin name Ton powder dosage, g Vitamin C 1320-1750 dl-alpha-tocopheryl acetate 284-384 Retinyl acetate 54-73 D-pantothenic acid calcium salt 47-63 Nicotinamide 45-61 Cholecalciferol 40-55 Biotin 26-36 Cyanocobalamine 24-33 Plant menadione 15-21 Folic acid 14-19 Thiamine hydrochloride 9-12 Pyridoxine hydrochloride 6-8 Riboflavin 6-8
7. The infant nutrition composition of claim 2, wherein:
the specific table of the compound mineral is as follows:
Figure FDA0004151357050000021
Figure FDA0004151357050000031
8. infant nutrition composition according to any of claims 1 to 7, characterized in that: the composition is a liquid, powder or solid.
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