Formula milk powder capable of improving eyesight of children and preparation method of formula milk powder

Abstract

The invention provides formula milk powder capable of protecting eyesight of children and a preparation method of the formula milk powder. The method comprises the following steps: spreading a clean haematococcus raw material, performing static pressure swing pressing for 1 hour, extracting the pressed haematococcus in a carbon dioxide supercritical extraction device for 5 hours at the extraction pressure of 40-50 MPa and the extraction temperature of 55-65 DEG C, collecting the extract into a clean mixing container, adding DHA algal oil and arachidonic acid grease according to a preparation ratio, and uniformly mixing to obtain a finished product. The preparation method comprises the following steps: fully stirring to uniformly mix to obtain an oil phase, adding the oil phase into a water phase at 65 DEG C, uniformly mixing, homogenizing for 2-4 times by a high-pressure homogenizer to obtain an oil microcapsule emulsion, extruding, sieving by a 100-mesh sieve, performing spray drying on the microcapsule emulsion to obtain powdered oil, and crushing the dried powdered oil raw materials to obtain the finished product. More than 90% of micro powder with the particle size of not more than 10 microns is uniformly mixed with other raw materials according to the mass ratio, and the finally obtained milk powder can remarkably improve the absorption rate and the stability of functional substances and has the function of improving the eyesight of infants.

Description

Technical Field

[0001] The invention relates to the field of dairy product processing, and more particularly to a formula milk powder for improving infant vision and a preparation method thereof. Background Art

[0002] At present, formula milk powder is crucial for the early nutrition of infants and young children. With the continuous progress of the economy and society in science and technology, the popularity and extensive application of electronic products, especially screen electronic products in families, more and more infants and young children are exposed to them more after the third stage. It is the excessive use of eyes during this period that causes the premature vision of infants and young children to be affected. Many children are myopic and wear glasses at around 5 years old. Most parents are seeking external medical help, but the effect is not significant from the current statistics. This is mainly because in addition to limiting exposure to electronic products, parents also need enough time and patience to do a lot of eye muscle training, and this restriction and persistence are often difficult to maintain. Formula milk powder, as a daily drinkable nutritional supplement, will gain greater social value if it can provide strong support in eye care and vision improvement.

[0003] At present, infant formula is basically supplemented with calcium, arachidonic acid, DHA, lutein and other ingredients that are beneficial to children's vision improvement. They have an important impact on the brain, nerve and vision development of infants and young children. However, the existing technology still shows certain limitations, which is reflected in the fact that the formula is generally single, the ingredients are homogeneous, and the absorption research of the ingredients is not significant. It is still in the primary stage in improving children's vision. However, the amount of milk powder consumed by infants and young children every day is limited. Most traditional formula milk powders are difficult to absorb and have few nutrients. The effect of taking them is poor and cannot meet the needs of improving vision during development.

[0004] At the same time, we found that the current formula milk powder has component exhaustion. Since the use frequency of high-grade milk powder is not as high as that of low-grade milk powder, exhaustion during the storage period greatly affects the performance of the effective ingredients, thereby affecting the function of the milk powder. Therefore, it is a technical problem that technicians in this field need to solve urgently to prepare infant formula milk powder with high functional ingredients, high bioavailability and high stability by optimizing the composition and preparation process of infant formula milk powder. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a method for preparing a formula milk powder with high absorption rate and high stability for improving the vision of young children, which specifically adopts the following technical scheme:.

[0006] A method for preparing a formula milk powder for improving eyesight of infants, characterized in that it comprises the following steps: S1: Spread the cleaned hematocrit raw material and press it statically for 1 hour, with an initial pressure of 0.5N / cm2, and increase it by 0.5N / cm2 every 30 minutes; S2: extracting the pressed Haematococcus pluvialis in a supercritical carbon dioxide extraction device for 5 hours at an extraction pressure of 40-50 MPa and an extraction temperature of 55-65°C, collecting the extract in a clean mixing container, adding DHA algae oil and arachidonic acid oil according to the preparation ratio, and stirring thoroughly to obtain an oil phase; S3: Add the oil phase to the 65℃ water phase, mix well and homogenize by a high-pressure homogenizer for 2-4 times to obtain an oil microcapsule emulsion, squeeze through a 100-mesh sieve, and spray-dry the microcapsule emulsion to obtain a powdered oil. The moisture content of the raw material is ≤3%; S4: crush the powdered oil raw material dried in S3, use an ultrafine pulverizer to ultrafinely pulverize the product at low temperature, pulverize it through a 1000 mesh sieve, and obtain more than 90% of the powder with a particle size not exceeding 10 microns; S5: The micro powder obtained in S4 is uniformly mixed with other raw materials according to a mass ratio to finally obtain infant formula milk powder.

[0007] In the above technical scheme, a formula milk powder for improving children's vision contains, per 100g of the formula milk powder: 65-85g of whole milk powder, 5-10g of desalted whey powder, 2-15g of galacto-oligosaccharide, 2-3g of calcium lactate, 0.5-5g of milk mineral salt, 50-120mg of hematocrit extract, 2-10mg of lutein, 150-180mg of compound vitamins, 9-12g of compound minerals, 60-80mg of docosahexaenoic acid, 80-100mg of arachidonic acid, 35-40mg of prebiotics, 0.08-0.5g of choline bitartrate, 20-100mg of ferrous lactate, 80-120mg of walnut oil, and 30-70mg of colostrum basic protein.

[0008] As a further preferred embodiment, the static variable pressure pressing method of the raw material in the above step S1 requires first draining the water from the hematocrit algae and then spreading it into a flat layer of 2-4 cm.

[0009] As a further preferred embodiment, the homogenization pressure in the above step S3 is 15 MPa to 25 MPa, and the temperature is 50° C. to 65° C.

[0010] As a further preferred embodiment, in the above step S3, the spray drying air inlet temperature is 165°C to 190°C, the air outlet temperature is 110°C to 120°C, the air extraction rate is 100%, and the feed rate is 0.3L / h.

[0011] As a further preferred embodiment, the low-temperature ultrafine grinding in the above step S4 is to repeatedly grind the material into ultrafine powder by a low-temperature high-frequency vibration mill ultrafine grinding method at -30 to -40°C.

[0012] In summary, the present invention has the following beneficial effects compared with the prior art: Firstly, the formula milk powder for improving vision of infants provided by the present invention is supplemented with astaxanthin by adding Haematococcus algae. The algae can accumulate astaxanthin in large quantities and present red color, hence the name Haematococcus algae. As the most efficient pure natural antioxidant discovered, astaxanthin is the only carotenoid that can penetrate the blood-brain barrier, and therefore is the only carotenoid that acts on brain cells and the retina of the eyeball, and can effectively prevent retinal oxidation and damage to photoreceptor cells. At the same time, in the preparation method of the present invention, the raw materials of Haematococcus algae, docosahexaenoic acid and arachidonic acid are made into 1000 mesh ultrafine powder, which is more conducive to human absorption. The prepared milk powder has significant improvements in stability and odor, etc. The improvement of absorption rate and stability can effectively exert the coordinated effect of various effective ingredients, can have an excellent therapeutic effect on the eyes of infants and young children, and effectively improve the problems caused by long-term use of electronic products. At the same time, its composite additives can further protect human eyes and relieve visual fatigue to a certain extent. DETAILED DESCRIPTION

[0013] The present invention discloses a method for preparing a formula milk powder for improving the vision of infants. Those skilled in the art can refer to the content of the present invention and appropriately improve the prescription ratio and process parameters to achieve the same. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included within the scope of the present invention. The application of the present invention has been described through preferred embodiments, and relevant personnel can obviously modify or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention. Example 1

[0014] A formula milk powder for improving eyesight of infants. Every 100g of the formula milk powder contains: 65-85g of whole milk powder, 5-10g of desalted whey powder, 2-15g of galacto-oligosaccharide, 2-3g of calcium lactate, 0.5-5g of milk mineral salt, 50-120mg of hematocrit extract, 2-10mg of lutein, 150-180mg of compound vitamins, 9-12g of compound minerals, 60-80mg of docosahexaenoic acid, 80-100mg of arachidonic acid, 35-40mg of prebiotics, 0.08-0.5g of choline bitartrate, 20-100mg of ferrous lactate, 80-120mg of walnut oil, and 30-70mg of colostrum basic protein.

[0015] The preparation method of the above-mentioned formula milk powder for improving children's eyesight is as follows: S1: Extract Haematococcus pluvialis in a supercritical carbon dioxide extraction device for 5 hours, with an extraction pressure of 40-50 MPa and an extraction temperature of 55-65°C; S2: homogenizing the obtained liquid and spray drying it to obtain milk powder; S3: Evenly mix the obtained milk powder, docosahexaenoic acid fish oil powder, arachidonic acid oil and the above other ingredients to finally obtain infant formula milk powder. Example 2

[0016] A formula milk powder for improving the eyesight of infants. Every 100 g of the formula milk powder contains: 65-85 g of whole milk powder, 5-10 g of desalted whey powder, 2-15 g of galacto-oligosaccharide, 2-3 g of calcium lactate, 0.5-5 g of milk mineral salt, 2-10 mg of lutein, 150-180 mg of compound vitamins, 9-12 g of compound minerals, 60-80 mg of docosahexaenoic acid, 80-100 mg of arachidonic acid, 35-40 mg of prebiotics, 0.08-0.5 g of choline bitartrate, 20-100 mg of ferrous lactate, 80-120 mg of walnut oil, and 30-70 mg of colostrum basic protein.

[0017] The preparation method of the formula milk powder for improving infant vision is as follows: the powder, docosahexaenoic acid fish oil powder and arachidonic acid oil are uniformly mixed to finally obtain the infant formula milk powder. Example 3

[0018] A method for preparing a formula milk powder for improving eyesight of infants, characterized in that it comprises the following steps: S1: Spread the cleaned hematocrit raw material and press it statically for 1 hour, with an initial pressure of 0.5N / cm2, and increase it by 0.5N / cm2 every 30 minutes; S2: extracting the pressed Haematococcus pluvialis in a supercritical carbon dioxide extraction device for 5 hours at an extraction pressure of 40-50 MPa and an extraction temperature of 55-65°C, collecting the extract in a clean mixing container, adding DHA algae oil and arachidonic acid oil according to the preparation ratio, and stirring thoroughly to obtain an oil phase; S3: Add the oil phase to the 65°C water phase, mix well, and then homogenize it with a high-pressure homogenizer for 2 to 4 times to obtain an oil microcapsule emulsion, squeeze it through a 100-mesh sieve, and spray-dry the microcapsule emulsion to obtain a powdered oil, with a raw material moisture content of ≤3%; S4: crush the powdered oil raw material dried in S3, use an ultrafine pulverizer to ultrafinely pulverize the product at low temperature, pulverize it through a 1000 mesh sieve, and obtain micro powder with a particle size of more than 90% not exceeding 10 microns; S5: The micro powder obtained in S4 is uniformly mixed with other raw materials according to a mass ratio to finally obtain infant formula milk powder.

[0019] In the above technical scheme, a formula milk powder for improving children's vision contains, per 100g of the formula milk powder: 65-85g of whole milk powder, 5-10g of desalted whey powder, 2-15g of galacto-oligosaccharide, 2-3g of calcium lactate, 0.5-5g of milk mineral salt, 50-120mg of hematocrit extract, 2-10mg of lutein, 150-180mg of compound vitamins, 9-12g of compound minerals, 60-80mg of docosahexaenoic acid, 80-100mg of arachidonic acid, 35-40mg of prebiotics, 0.08-0.5g of choline bitartrate, 20-100mg of ferrous lactate, 80-120mg of walnut oil, and 30-70mg of colostrum basic protein.

[0020] As a further preferred embodiment, the static variable pressure pressing method of the raw material in the above step S1 requires first draining the water from the hematocrit algae and then spreading it into a flat layer of 2-4 cm.

[0021] As a further preferred embodiment, the homogenization pressure in the above step S3 is 15 MPa to 25 MPa, and the temperature is 50° C. to 65° C.

[0022] As a further preferred embodiment, in the above step S3, the spray drying air inlet temperature is 165°C to 190°C, the air outlet temperature is 110°C to 120°C, the air extraction rate is 100%, and the feed rate is 0.3L / h.

[0023] As a further preferred embodiment, the low-temperature ultrafine grinding in the above step S4 is to repeatedly grind the material into ultrafine powder by a low-temperature high-frequency vibration mill ultrafine grinding method at -30 to -40°C. Example 4

[0024] A method for preparing a formula milk powder for improving eyesight of infants, characterized in that it comprises the following steps: S1: Extract the Haematococcus pluvialis in a supercritical carbon dioxide extraction device for 5 hours at an extraction pressure of 40-50 MPa and an extraction temperature of 55-65°C, collect the extract in a clean mixing container, add DHA algae oil and arachidonic acid oil according to the preparation ratio, and stir thoroughly to mix evenly to obtain an oil phase; S2: Add the oil phase to the 65°C water phase, mix well, and homogenize by a high-pressure homogenizer for 2 to 4 times to obtain an oil microcapsule emulsion, squeeze through a 100-mesh sieve, and spray-dry the microcapsule emulsion to obtain a powdered oil, with a raw material moisture content of ≤3%; S3: The micro powder obtained in S4 is uniformly mixed with other raw materials according to the mass ratio to finally obtain infant formula milk powder.

[0025] In the above technical scheme, a formula milk powder for improving children's vision contains, per 100g of the formula milk powder: 65-85g of whole milk powder, 5-10g of desalted whey powder, 2-15g of galacto-oligosaccharide, 2-3g of calcium lactate, 0.5-5g of milk mineral salt, 50-120mg of hematocrit extract, 2-10mg of lutein, 150-180mg of compound vitamins, 9-12g of compound minerals, 60-80mg of docosahexaenoic acid, 80-100mg of arachidonic acid, 35-40mg of prebiotics, 0.08-0.5g of choline bitartrate, 20-100mg of ferrous lactate, 80-120mg of walnut oil, and 30-70mg of colostrum basic protein.

[0026] As a further preferred embodiment, the homogenization pressure in the above step S2 is 15 MPa to 25 MPa, and the temperature is 50° C. to 65° C.

[0027] As a further preferred embodiment, the spray drying inlet air temperature in the above step S2 is 165°C to 190°C, the outlet air temperature is 110°C to 120°C, the exhaust speed is 100%, and the feed speed is 0.3L / h. Example 5

[0028] In this example, the best technical solution is selected by measuring the food utilization rate for Example 1 to Example 4, and the orthogonal test results are weighted and scored. 50 male and female rats are selected as experimental animals, and the milk powder Examples 1-4 of the present invention are consumed. An equal amount of formula milk powder is dispersed in 1 mL of normal saline, and the different example groups are gavaged once a day. The astaxanthin content in plasma is measured half an hour later for 4 consecutive weeks. The astaxanthin food utilization rate = plasma astaxanthin concentration / gastric intake. Screening is performed as shown in the following Table 1.

[0029] Table 1

[0030] Embodiment 6: This example is aimed at Example 1 to Example 4, and the best technical solution is selected by measuring the oxidation of food. 1000g of each sample of Example 1 to Example 4 is taken, placed in an anaerobic transparent glass bottle, and placed for 6 months under the conditions of temperature of 25°C ± 2°C and relative humidity of 75% ± 5%. Samples are taken and the composition components are tested. The test results are expressed as detection rate = content after 6 months / initial content. The results are shown in Table 2: Table 2

[0031] analyze: By comparing and analyzing Examples 1 to 4, it can be seen that: ① After ultra-fine processing, key substances such as Haematococcus pluvialis are more stable in milk powder. The powdering process of Haematococcus pluvialis is very important. The drying process before ultra-fine processing, with the moisture content of the raw materials ≤3%, also promotes the stability of the finished product.

[0032] ② The key substances such as Haematococcus pluvialis are crushed through a 1000-mesh sieve to obtain more than 90% of micropowders with a particle size not exceeding 10 microns. This is the result of the close cooperation of the various steps of the present invention, which greatly improves the human body's absorption of the effective ingredients and achieves a breakthrough in the essence of nutrient absorption, thereby facilitating the scientific configuration of milk powders of different levels and obtaining a more accurate therapeutic effect.

[0033] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, but are not limited thereto. Those skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A method for preparing a formula milk powder for improving children's vision, characterized in that: The following steps are involved: S1: Spread the cleaned hematocrit raw material and press it statically for 1 hour, with an initial pressure of 0.5N / cm2, and increase it by 0.5N / cm2 every 30 minutes; S2: extracting the pressed Haematococcus pluvialis in a supercritical carbon dioxide extraction device for 5 hours at an extraction pressure of 40-50 MPa and an extraction temperature of 55-65°C, collecting the extract in a clean mixing container, adding DHA algae oil and arachidonic acid oil according to the preparation ratio, and stirring thoroughly to obtain an oil phase; S3: Add the oil phase to the 65℃ water phase, mix well and homogenize by a high-pressure homogenizer for 2-4 times to obtain an oil microcapsule emulsion, squeeze through a 100-mesh sieve, and spray-dry the microcapsule emulsion to obtain a powdered oil. The moisture content of the raw material is ≤3%; S4: crush the powdered oil raw material dried in S3, use an ultrafine pulverizer to ultrafinely pulverize the product at low temperature, pulverize it through a 1000 mesh sieve, and obtain micro powder with a particle size of more than 90% not exceeding 10 microns; S5: The micro powder obtained in S4 is uniformly mixed with other raw materials according to a mass ratio to finally obtain infant formula milk powder.

2. The preparation method according to claim 1, characterized in that: Every 100g of formula milk powder contains: 65~85g whole milk powder, 5~10g desalted whey powder, 2~15g galacto-oligosaccharide, 2~3g calcium lactate, 0.5~5g milk mineral salt, 50~120mg hematocrit extract, 2~10mg lutein, 150~180mg complex vitamins, 9~12g complex minerals, 60~80mg docosahexaenoic acid, 80~100mg arachidonic acid, 35~40mg prebiotics, 0.08~0.5g choline bitartrate, 20~100mg ferrous lactate, 80~120mg walnut oil, and 30~70mg colostrum basic protein.

3. The preparation method according to claim 1, characterized in that: The static variable pressure pressing method of the raw material in step S1 requires first draining the water from the hematocrit algae and then spreading it into a flat layer of 2-4 cm.

4. The preparation method according to claim 1, characterized in that: The homogenization pressure in step S3 is 15 MPa to 25 MPa, and the temperature is 50° C. to 65° C.

5. The preparation method according to claim 1, characterized in that In step S3, the spray drying air inlet temperature is 165°C to 190°C, the air outlet temperature is 110°C to 120°C, the air extraction rate is 100%, and the feed rate is 0.3L / h.

6. The preparation method according to claim 1, characterized in that: The low-temperature ultrafine grinding in step S4 is to repeatedly grind the material into ultrafine powder by using a low-temperature high-frequency vibration mill ultrafine grinding method at -30 to -40°C.

7. A formula milk powder for improving the eyesight of infants, characterized in that: The compound is prepared by the preparation method according to any one of claims 1 to 6.

Images