CN103504025A - Wet preparation process of infant formula milk powder - Google Patents
Wet preparation process of infant formula milk powder Download PDFInfo
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- CN103504025A CN103504025A CN201210211195.5A CN201210211195A CN103504025A CN 103504025 A CN103504025 A CN 103504025A CN 201210211195 A CN201210211195 A CN 201210211195A CN 103504025 A CN103504025 A CN 103504025A
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Abstract
The present invention relates to a wet preparation process of infant formula milk powder, wherein raw materials comprise vegetable oil, fresh milk, desalted whey powder, lactose, whey protein powder, oligosaccharide, compound vitamins, compound minerals, other nutrients, a microcapsule wall material and the like. The preparation method comprises: embedding vitamins, minerals, vegetable oil, oils in other nutrients by using a microcapsule technology; uniformly mixing the embedded vitamin powder, the embedded mineral powder, the embedded oil nutrient powder and other nutrients with the amount of less than 5% to obtain a mixture; mixing fresh milk, whey powder, lactose, whey protein and oligosaccharide, carrying out homogenization by using a high pressure homogenization machine, carrying out concentration and spray drying to obtain powdery base powder, and uniformly mixing the mixture and the base powder; and carrying out nitrogen filling quantitative package. According to the present invention, the part of the substances with characteristics of easy reaction generation and instability is embedded through the microcapsule technology, and the mixing and packaging preparation process is performed under a certain condition so as to reduce or prevent adverse reactions among the substances; and the prepared infant formula milk powder has advantages of good stability, good uniformity, good taste and assurance of nutritional activities of various components.
Description
Technical field
The present invention relates to technical field of processing dairy products, specifically a kind of wet method preparation process of baby formula milk powder.
Background technology
Baby formula milk powder is in order to meet infant's nutritional need, adds various nutritional labelings in milk powder, to reach the effect that approaches breast milk.Compare with ordinary powdered milk, baby milk powder has been removed part casein in formula, has increased lactalbumin; Remove most of saturated fatty acid, added vegetable oil, increased unrighted acid DHA (DHA is commonly called as docosapentaenoic acid) and AA (arachidonic acid); In formula milk, also added lactose, carbohydrate content approaches human milk; Also add in addition vitamin, mineral matter, trace element, some amino acid or other nutritional labelings, made it more to approach human milk.
The preparation technology of baby formula milk powder has two kinds at present, a kind of is plain chocolate or milk powder to be added to water be reduced into former breast, add milk to cross in recombined milk other nutrients such as vitamin, mineral matter again and mix, by spray-dired method, make, become traditionally wet processing; A kind of is that the method that milk powder, fatty powder, vitamin, mineral matter etc. are mixed directly makes, also referred to as dry process.Existing technique exists topmost problem to have: " Mei Lade " reaction, and amino-compound is as protein, amino acid etc., and between sugar, interacts and produce brown stain, causes milk powder to darken; Fat rancidity, grease is at sunlight, and rotten under the acting in conjunction of the factors such as air and temperature, fat splitting becomes glycerine and aliphatic acid, and fatty acid oxidation produces aldehyde and ketone compounds, thereby occurs unpleasant rancidity; What in milk powder process, sterilization did not thoroughly cause goes mouldy; Redox reaction between vitamin and mineral matter etc.Mineral matter is the catalyst that produces a lot of reactions, because no matter be wet processing or dry process, is all that various nutriments are directly mixed to interpolation, cannot avoid the impact of various destructive factors.Because albumen, fat etc. in formula milk are very abundant, various vitamin, mineral matter and other nutrient categories are various, in the process that stores and use, are easy to produce various quality problems, as become raw meat, mouldy, brown stain, having acid smell etc.
Rotten formula milk taste and outward appearance can degenerate, and physical property qualitative change is bad, and vitamin and essential amino acid are decomposed, and cause its nutritive value to disappear, and the biological value of protein and digestibility reduce, and noxious material or metabolism hinder material and grow.So for infant's health, except not allowing the rotten milk powder of infants, study more advanced formula milk preparation technology, guarantee that the quality of product and each nutriment are not destroyed and become particularly important.
Though have part oily substance to adopt the technique of embedding at present, to change its dispersed in solid material or the dissolubility in water-soluble substances, but still the problems such as redox reaction of vitamin, mineral matter in " Maillard reaction " of unresolved formula milk and nutriment.Microcapsules technology can be got up sensitive composition embedding, makes it avoid the impact of extraneous factor; Also can avoid or alleviate some composition peculiar smell and with the effect of other composition.Therefore, the research of microcapsules is significant for the preparation of formula milk.
Summary of the invention
The object of this invention is to provide a kind of wet method and prepare the technique of baby formula milk powder, the milk powder of preparing by the method has good stability, the advantage that nutritive value is adequately protected and mouthfeel is good.
A kind of baby formula milk powder of the present invention, by weight in every 100 g formulas each composition comprise vegetable oil 5-20 part, containing fresh milk 187-427 part of dry 11.1%,, desalted whey powder 25-34.607 part, lactose 5.493-24.993 part, PURE WHEY 2.75-4.6 part, compound sugar 1.5-2.5 part, B B-complex 0.1-0.2 part, composite mineral matter 0.35-0.7 part, other baby formula milk powder allows the nutrient 0.3-0.5 part and other microcapsule wall material that add, it is characterized in that making by following technology and step:
(1) first adopt microcapsules technology to make vitamin powder vitamin;
(2) mineral matter is adopted microcapsules technology make mineral matter powder;
(3) vegetable fat is adopted microcapsules technology make plant fat powder;
(4) adopt respectively microcapsules technology to make oils nutriment powder the oils in other nutrients;
(5) vitamin powder of microencapsulation, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient mixes;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 40-50 ℃; Use high pressure homogenizer under 15-20MPa, to carry out homogeneous, temperature is controlled at 40-50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 150-170 ℃, temperature of outgoing air is 80-90 ℃;
(7) mixture step (5) being made mixes with the original washing powder that step (6) makes;
(8) fill nitrogen quantitative package.
In above-mentioned, can be also by the lactoferrin in the source of iron in the vitamin C in vitamin, mineral matter and other battalion's element, after first premix is even, carry out again microencapsulation and make Fe composition;
As preferably, the wall material that in above-mentioned preparation method, microcapsules are selected can be one or more in lactalbumin, desalted whey powder, lecithin, maltodextrin, corn syrup, lactose;
As preferably, the wall material that microcapsules are selected can be one or more in lactalbumin, desalted whey powder, lactose;
As preferred above-mentioned preparation method, the operation of step (7) can be: step (5) is made to the original washing powder that mixture and step (6) make, be divided into 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix;
As preferred above-mentioned preparation method, the condition of mixing can be temperature: 20-25 ℃, humidity (RH)≤30-35%, and air purity is 100,000 grades, the water activity of all raw materials (Aw)≤0.5;
Vitamin microcapsuleization in above-mentioned can be first PURE WHEY to be added purified water to be dissolved into lactoalbumin soln, adds the B B-complex that wall material is 4-6:1 than core quality; After mixing, through low temperature spray drying, obtain vitamin powder after cooling, but or also first add purified water to be dissolved into solution maltodextrin, then with B B-complex, wall material is after 5-8:1 mixes than core quality, through low temperature spray drying, obtain vitamin powder after cooling;
Mineral matter microencapsulation in above-mentioned can be that added mineral matter is dissolved in a small amount of purified water and makes suspension, then mineral matter quality 1-2 lecithin is doubly dispersed in mineral matter suspension, and fully stirring, emulsification, until mix; Semi-solid goods are poured in container, dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder;
Vegetable oil microencapsulation in above-mentioned can be that vegetable oil is placed in to ultrasonic emulsification machine, add lactose, a small amount of lecithin to carry out emulsification, wall material is 1-1.2:1 than core quality, homogeneous, ultrasonic emulsification become uniform solution, spraying is drying to obtain plant fat powder, or take desalted whey powder as wall material, by the oils in other nutrients and the abundant mixing and emulsifying of wall material, wall material and core mass ratio 1-1.2:1, by low-temperature reduced-pressure be dried, cooling rear pulverizing obtain plant fat powder;
Oils nutrient microencapsulation in above-mentioned can be to take desalted whey powder to coordinate corn syrup be wall material, oils in other nutrients is mixed with wall material, wall material is 3-4:1 than core quality, by low temperature spray drying, cooling after and get final product, or vegetable oil is placed in to ultrasonic emulsification machine, and adding mass ratio is PURE WHEY and the lactose of 3:1, wall material core mass ratio is 2-3:1, homogeneous, ultrasonic emulsification become after uniform solution, and spraying is drying to obtain.
Fe composition microencapsulation in above-mentioned can be that core vitamin C, ferric pyrophosphate, lactoferrin are dissolved in a certain amount of purified water and make solution, again lactalbumin and the maltodextrin of wall material mass ratio 7:3 are dispersed in solution, control wall material and core mass ratio and be controlled at 2-3:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition.
The wet method preparation process of baby formula milk powder of the present invention, first part easily to be produced to reaction, unsettled material by after microcapsules technology embedding, under certain working condition, the preparation technology who mixes, packs, reduces or has prevented the bad reaction between each material.Prepared baby formula milk powder has good stability, good evenness, and mouthfeel is good and can guarantee the advantage of the nutritional activities of each component.
Accompanying drawing explanation
Fig. 1 is preparation method's flow chart of the present invention.
The specific embodiment
Below by following examples, the invention will be further described, and it will contribute to understand the present invention, but do not limit content of the present invention.
Embodiment 1
The proportioning components of babies ' formula milk powder is according to vegetable oil 20g, wall material: lactose 20g; Fresh milk 187g containing dry 11.1%; Desalted whey powder 25g; PURE WHEY 4g; Lactose 4.993g; Compound sugar 2.5g; Composite mineral matter 0.7g, wall material: lecithin 0.35g; B B-complex 0.1g, wall material: PURE WHEY 0.4g; Nutrient 0.3g, wall material: desalted whey powder 0.6g, corn syrup 0.3g.
With reference to Fig. 1, see that preparation technology is as follows:
(1) vitamin microcapsule technology: first PURE WHEY is added purified water to be dissolved into the lactoalbumin soln of mass fraction 10%, add the B B-complex that wall material is 4:1 than core quality; After mixing, through low temperature spray drying, 120 ℃ of inlet temperatures, 50 ℃ of outlet temperatures, the cooling vitamin powder that obtains are controlled in operation;
(2) mineral matter microcapsules technology: added mineral matter is dissolved in a small amount of purified water and makes suspension, then the lecithin of mineral matter quality 50% is dispersed in mineral matter suspension, fully stirring, emulsification, until mix; Semi-solid goods are poured in container, after ℃ freezing 12h of refrigerator-18, dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder;
(3) vegetable oil microcapsules technology: vegetable oil is placed in to ultrasonic emulsification machine, add lactose, a small amount of lecithin to carry out emulsification, wall material is 1:1 than core quality, control homogenization pressure 25MPa, after excusing from death emulsification 10min, control 150 ℃ of inlet temperatures, 70 ℃ of outlet temperatures, spraying is drying to obtain plant fat powder;
(4) oils nutrient microcapsules technology: it is wall material that the desalted whey powder of take coordinates corn syrup, and the oils in other nutrients is mixed with wall material, and wall material is 3:1 than core quality, by low temperature spray drying, cooling after and get final product;
(5) first the vitamin powder after microcapsules, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 20 ℃, relative humidity (RH) is 35%, and air purity is 100,000 grades, mix 10min, make evenly;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 40 ℃; Use high pressure homogenizer under 20MPa, to carry out homogeneous, temperature is controlled at 40 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 150 ℃, temperature of outgoing air is 80 ℃;
(7) original washing powder that mixture step (5) being made makes with step (6) mixes under step (5) working condition; After filling nitrogen quantitative package and get final product.
Embodiment 2
The proportioning components of babies ' formula milk powder is according to vegetable oil 20g, wall material: lactose 20g; Fresh milk 187g containing dry 11.1%; Desalted whey powder 25g; PURE WHEY 4g; Lactose 4.143g; Compound sugar 2.5g; Composite mineral matter 0.7g, embedding wall material: lecithin 0.7g; B B-complex 0.1g, embedding wall material: PURE WHEY 0.6g; Nutrient 0.3g, embedding wall material: desalted whey powder 0.8g, corn syrup 0.4g.
With reference to Fig. 1, see that preparation technology is as follows:
(1) vitamin microcapsule technology: first PURE WHEY is added purified water to be dissolved into the lactoalbumin soln of mass fraction 10%, add the B B-complex that wall material is 6:1 than core quality; After mixing, through low temperature spray drying, during operation, control 120 ℃ of inlet temperatures, 50 ℃ of outlet temperatures, the cooling vitamin powder that obtains;
(2) mineral matter microcapsules technology: added mineral matter is dissolved in a small amount of purified water and makes suspension, then the lecithin of 1 times of mineral matter quality is dispersed in mineral matter suspension, fully stirring, emulsification, until mix; Semi-solid goods are poured in container, after ℃ freezing 12h of refrigerator-18, in.Dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder;
(3) vegetable oil microcapsules technology: vegetable oil is placed in to ultrasonic emulsification machine, add lactose, a small amount of lecithin to carry out emulsification, wall material is 1.2:1 than core quality, control homogenization pressure 25MPa, after excusing from death emulsification 10min, control 150 ℃ of inlet temperatures, 70 ℃ of outlet temperatures, spraying is drying to obtain plant fat powder;
(4) oils nutrient microcapsules technology: it is wall material that the desalted whey powder of take coordinates corn syrup, and the oils in other nutrients is mixed with wall material, and wall material is 4:1 than core quality, by low temperature spray drying, cooling after and get final product;
(5) first the vitamin powder after microcapsules, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 20 ℃, relative humidity (RH) is 35%, and air purity is 100,000 grades, mix 10min, make evenly;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 50 ℃; Use high pressure homogenizer under 15MPa, to carry out homogeneous, temperature is controlled at 50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 170 ℃, temperature of outgoing air is 90 ℃;
(7) original washing powder that mixture step (5) being made makes with step (6) mixes under step (5) working condition; After filling nitrogen quantitative package and get final product.
Embodiment 3
Babies ' formula milk powder proportioning components is according to vegetable oil 5g, wall material: desalted whey powder 5g; Fresh milk 427g containing dry 11.1%; Desalted whey powder 20 g; PURE WHEY 2 g; Lactose 16.073 g; Compound sugar 1.5 g; Composite mineral matter 0.35g, wall material: lecithin 0.28g; B B-complex 0.15, wall material: maltodextrin 0.75g; Nutrient 0.5g, wall material: PURE WHEY 0.75g, lactose 0.25g.
Preparation technology is as follows:
(1) vitamin microcapsule technology: first maltodextrin is added purified water to be dissolved into the solution of mass fraction 20%, then with B B-complex, wall material is after 5:1 mixes than core quality, through low temperature spray drying, obtains vitamin powder after cooling;
(2) mineral matter microcapsules technology: added mineral matter is dissolved in a small amount of purified water and makes suspension, then the lecithin of 0.8 times of mineral matter quality is dispersed in mineral matter suspension, fully stirring, emulsification, until mix; Semi-solid goods are poured in container, after ℃ freezing 12h of refrigerator-18, dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder;
(3) vegetable oil microcapsules technology: take desalted whey powder as wall material, by the oils in other nutrients and the abundant mixing and emulsifying of wall material, wall material and core mass ratio 1:1, by low-temperature reduced-pressure be dried, cooling rear pulverizing obtain plant fat powder;
(4) oils nutrient microcapsules technology: vegetable oil is placed in to ultrasonic emulsification machine, adding mass ratio is PURE WHEY and the lactose of 3:1, wall material core mass ratio is 2:1, control homogenization pressure 25MPa, after excusing from death emulsification 10min, control 150 ℃ of inlet temperatures, 70 ℃ of outlet temperatures, spraying is drying to obtain;
(5) first the vitamin powder after microcapsules, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 25 ℃, relative humidity (RH) is 30%, and air purity is 100,000 grades, mix 10min, make evenly;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 40 ℃; Use high pressure homogenizer under 20MPa, to carry out homogeneous, temperature is controlled at 40 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 150 ℃, temperature of outgoing air is 80 ℃;
(7) original washing powder that mixture step (5) being made makes with step (6) mixes under step (5) working condition; After filling nitrogen quantitative package and get final product.
Embodiment 4
Babies ' formula milk powder proportioning components is according to vegetable oil 5g, wall material: desalted whey powder 6g; Fresh milk 427g containing dry 11.1%; Desalted whey powder 20 g; PURE WHEY 2 g; Lactose 14.053 g; Compound sugar 1.5 g; Composite mineral matter 0.35g, wall material: lecithin 0.35g; B B-complex 0.15, wall material: maltodextrin 1.2g; Nutrient 0.5g, wall material: PURE WHEY 1g, lactose 0.5g.
Preparation technology is as follows:
(1) vitamin microcapsule technology: first maltodextrin is added purified water to be dissolved into the solution of mass fraction 20%, then with B B-complex, wall material is after 8:1 mixes than core quality, through low temperature spray drying, obtains vitamin powder after cooling;
(2) mineral matter microcapsules technology: added mineral matter is dissolved in a small amount of purified water and makes suspension, then the lecithin of 1 times of % of mineral matter quality is dispersed in mineral matter suspension, fully stirring, emulsification, until mix; Semi-solid goods are poured in container, after ℃ freezing 12h of refrigerator-18, dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder;
(3) vegetable oil microcapsules technology: take desalted whey powder as wall material, by the oils in other nutrients and the abundant mixing and emulsifying of wall material, wall material and core mass ratio 1.2:1, by low-temperature reduced-pressure be dried, cooling rear pulverizing obtain plant fat powder;
(4) oils nutrient microcapsules technology: vegetable oil is placed in to ultrasonic emulsification machine, adding mass ratio is PURE WHEY and the lactose of 2:1, wall material core mass ratio is 3:1, control homogenization pressure 30MPa, after excusing from death emulsification 10min, control 150 ℃ of inlet temperatures, 70 ℃ of outlet temperatures, spraying is drying to obtain;
(5) first the vitamin powder after microcapsules, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 25 ℃, relative humidity (RH) is 30%, and air purity is 100,000 grades, mix 10min, make evenly;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 50 ℃; Use high pressure homogenizer under 15MPa, to carry out homogeneous, temperature is controlled at 50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 170 ℃, temperature of outgoing air is 90 ℃;
(7) original washing powder that mixture step (5) being made makes with step (6) mixes under step (5) working condition; After filling nitrogen quantitative package and get final product.
Embodiment 5
Baby formulas milk powder proportioning components is according to vegetable oil 10g, wall material: lactose 10g; Fresh milk 325g containing dry 11.1%; Desalted whey powder 30 g; PURE WHEY 3 g; Lactose 5.353 g; Compound sugar 2.0 g; Composite mineral matter (deironing) 0.6g, wall material: lecithin 0.3g; B B-complex (except vitamin C) 0.11g, wall material: PURE WHEY 0.44g; Nutrient 0.4g, wall material: desalted whey powder 0.8g, corn syrup 0.4g; Vitamin C 0.09g, ferric pyrophosphate 0.024g, lactoferrin 0.06g, wall material: PURE WHEY 0.244g, maltodextrin 0.104g.
Preparation technology is as follows:
(1) Fe composition microcapsules technology: vitamin C, ferric pyrophosphate, lactoferrin are dissolved in a certain amount of purified water and make solution, again by lactalbumin and maltodextrin, ratio with mass ratio 7:3, be dispersed in solution, wall material and core mass ratio are 2:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition (water activity (Aw)≤0.5);
(2) other vitamin, mineral matter, vegetable oil, oils nutrient make (water activity (Aw)≤0.5) according to the method for embodiment 1;
(3) vitamin powder after microcapsules, mineral matter powder, oils nutriment powder, Fe composition and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 20 ℃, relative humidity (RH) is 30%, and air purity is 100,000 grades, mix 10min, make evenly;
(4) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 40 ℃; Use high pressure homogenizer under 15MPa, to carry out homogeneous, temperature is controlled at 40 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 150 ℃, temperature of outgoing air is 80 ℃;
(5) step (3) is made to the original washing powder that mixture and step (4) make, be divided into separately 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix (the same step of mixing condition (3));
(6) fill nitrogen quantitative package.
Embodiment 6
Baby formulas milk powder proportioning components is according to vegetable oil 10g, wall material: lactose 12g; Fresh milk 325g containing dry 11.1%; Desalted whey powder 30 g; PURE WHEY 3 g; Lactose 2.259 g; Compound sugar 2.0 g; Composite mineral matter (deironing) 0.6g, wall material: lecithin 0.6g; B B-complex (except vitamin C) 0.11g, wall material: PURE WHEY 0.66g; Nutrient 0.4g, wall material: desalted whey powder 0.8g, corn syrup 0.8g; Vitamin C 0.09g, ferric pyrophosphate 0.024g, lactoferrin 0.06g, wall material: PURE WHEY 0.365g, maltodextrin 0.157g.
Preparation technology is as follows:
(1) Fe composition microcapsules technology: vitamin C, ferric pyrophosphate, lactoferrin are dissolved in a certain amount of purified water and make solution, again by lactalbumin and maltodextrin, ratio with mass ratio 7:3, be dispersed in solution, wall material and core mass ratio are 3:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition (water activity (Aw)≤0.5);
(2) other vitamin, mineral matter, vegetable oil, oils nutrient make (water activity (Aw)≤0.5) according to the method for embodiment 2;
(3) vitamin powder after microcapsules, mineral matter powder, oils nutriment powder, Fe composition and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 20 ℃, relative humidity (RH) is 30%, and air purity is 100,000 grades, mix 10min, make evenly;
(4) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 50 ℃; Use high pressure homogenizer under 20MPa, to carry out homogeneous, temperature is controlled at 50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 170 ℃, temperature of outgoing air is 90 ℃;
(5) step (3) is made to the original washing powder that mixture and step (4) make, be divided into separately 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix (the same step of mixing condition (3));
(6) fill nitrogen quantitative package.
Embodiment 7
Larger babies ' formula milk powder proportioning components is according to vegetable oil 12g, wall material: desalted whey powder 12g; Fresh milk (dry 11.1%) 350g; Desalted whey powder 20g; PURE WHEY 3 g; Lactose 8.616 g; Compound sugar 2.0 g; Composite mineral matter (deironing) 0.5g, wall material: lecithin 0.4g; B B-complex (except vitamin C) 0.12g, wall material: maltodextrin 0.6g; Nutrient 0.5g, wall material: PURE WHEY 0.75g, lactose 0.25g; Ferrous sulfate (iron content 20%) 0.03g, lactoferrin 0.048g, vitamin C 0.06g, wall material: desalted whey powder 0.138g, maltodextrin 0.138g.
Preparation technology is as follows:
(1) Fe composition microcapsules technology: vitamin C, ferrous sulfate, lactoferrin are dissolved in a certain amount of purified water and make solution, again by desalted whey powder and maltodextrin, ratio with mass ratio 1:1, be dispersed in solution, controlling wall material and core mass ratio is 2:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition (water activity (Aw)≤0.5);
(2) other vitamin, mineral matter, vegetable oil, oils nutrient make (water activity (Aw)≤0.5) according to the method for embodiment 3;
(3) vitamin powder after microcapsules, mineral matter powder, oils nutriment powder, Fe composition and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 25 ℃, relative humidity (RH) is 35%, and air purity is 100,000 grades, mix 10min, make evenly;
(4) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 45 ℃; Use high pressure homogenizer under 15MPa, to carry out homogeneous, temperature is controlled at 45 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 160 ℃, temperature of outgoing air is 85 ℃;
(5) step (3) is made to the original washing powder that mixture and step (4) make, be divided into separately 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix (the same step of mixing condition (3));
(6) fill nitrogen quantitative package.
Embodiment 8
Larger babies ' formula milk powder proportioning components is according to vegetable oil 12g, wall material: desalted whey powder 14.4g; Fresh milk (dry 11.1%) 350g; Desalted whey powder 20g; PURE WHEY 3 g; Lactose 5.118 g; Compound sugar 2.0 g; Composite mineral matter (outside deironing) 0.5g, embedding wall material: lecithin 0.5g; B B-complex (except vitamin C) 0.12g, embedding wall material: maltodextrin 0.96g; Nutrient 0.5g, embedding wall material: PURE WHEY 1.125g, lactose 0.375g; Ferrous sulfate (iron content 20%) 0.03g, lactoferrin 0.048g, vitamin C 0.06g, embedding wall material: desalted whey powder 0.207g, maltodextrin 0.207g.
Preparation technology is as follows:
(1) Fe composition microcapsules technology: vitamin C, ferrous sulfate, lactoferrin are dissolved in a certain amount of purified water and make solution, again by desalted whey powder and maltodextrin, ratio with mass ratio 1:1, be dispersed in solution, controlling wall material and core mass ratio is 3:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition (water activity (Aw)≤0.5);
(2) other vitamin, mineral matter, vegetable oil, oils nutrient make (water activity (Aw)≤0.5) according to the method for embodiment 4;
(3) vitamin powder after microcapsules, mineral matter powder, oils nutriment powder, Fe composition and other consumptions being less than to 5% nutrient adds in mixer, between mixing, control temperature at 25 ℃, relative humidity (RH) is 35%, and air purity is 100,000 grades, mix 10min, make evenly;
(4) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 50 ℃; Use high pressure homogenizer under 20MPa, to carry out homogeneous, temperature is controlled at 50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 170 ℃, temperature of outgoing air is 90 ℃;
(5) step (3) is made to the original washing powder that mixture and step (4) make, be divided into separately 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix (the same step of mixing condition (3));
(6) fill nitrogen quantitative package.
Preparation method provided by the invention, tool has the following advantages:
1, adopt microcapsules technology that material unstable or that easily react is first carried out to embedding, guaranteed the activity of each nutrient;
2, special hybrid technique has guaranteed the dispersed of each nutrient, and production process humiture requires extremely strict, guarantees the quality of product;
3, inflated with nitrogen is preserved, and has more guaranteed the stability of product.
Prepared by the present invention to the stability study of milk powder below:
Sample: the milk powder of preparing according to the composition and engineering of embodiment 1 is sample sets; Press the formula of embodiment 1, not embedding, the milk powder of preparing by common dry process is control group.
Test method: two good samples of nitrogen-filled packaging are put into constant temperature and humidity the temperature inside the box (40 ℃ of temperature, humidity 75%), monthly detect surface oil, peroxide value and organoleptic indicator, continuous 6 months.(organoleptic indicator: adopt the assessment method of ten point system, drink after reconstituting according to identical standard) result as:
The surface oil of table 1 milk powder and peroxide value
Result: can find out that from upper table result the surface oil of sample sets milk powder in whole probation and peroxide value all do not have significantly to raise, two control groups start after 3 months to raise; By organoleptic indicator's evaluation test, sample sets is in whole probation, and outward appearance and taste smell change little, average out to 9.1 minutes; There is fishy smell in control group, and along with the increase fishy smell in month increases the weight of, slight flavescence also appears in outward appearance, is equally divided into 7.5 minutes since 4th month; Show that milk powder prepared by the preparation method by this patent is more stable than common process.
Above-described is only the preferred embodiment of the present invention; it should be pointed out that the those of ordinary skill in the art, do not departing under the prerequisite of core technology feature of the present invention; can also make some improvement, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a wet method preparation process for baby formula milk powder, in every 100 g formulas, each composition comprises vegetable oil 5-20 part, the fresh milk 187-427 part containing dry 11.1%, desalted whey powder 25-34.607 part, lactose 5.493-24.993 part, PURE WHEY 2.75-4.6 part, compound sugar 1.5-2.5 part, B B-complex 0.1-0.2 part, composite mineral matter 0.35-0.7 part, other baby formula milk powder and allows the nutrient 0.3-0.5 part and other microcapsule wall material that add by weight; It is characterized in that making by following technology and step:
(1) first adopt microcapsules technology to make vitamin powder vitamin;
(2) mineral matter is adopted microcapsules technology make mineral matter powder;
(3) vegetable fat is adopted microcapsules technology make plant fat powder;
(4) adopt respectively microcapsules technology to make oils nutriment powder the oils in other nutrients;
(5) vitamin powder of microencapsulation, mineral matter powder, oils nutriment powder and other consumptions being less than to 5% nutrient mixes;
(6) fresh milk, whey powder, lactose, lactalbumin, compound sugar are mixed, stir until dissolving completely makes mixed solution, water temperature is at 40-50 ℃; Use high pressure homogenizer under 15-20MPa, to carry out homogeneous, temperature is controlled at 40-50 ℃; Chilling temperature is below 10 ℃, and the temporary time is no more than 12 hours; The dry Powdered original washing powder that makes that concentrates and spray, when spraying is dry, EAT is 150-170 ℃, temperature of outgoing air is 80-90 ℃;
(7) mixture step (5) being made mixes with the original washing powder that step (6) makes;
(8) fill nitrogen quantitative package.
2. according to the wet method preparation process of the baby formula milk powder described in claims 1, it is characterized in that: by the lactoferrin in the source of iron in the vitamin C in vitamin, mineral matter and other nutrient, after first premix is even, carry out again microencapsulation and make Fe composition.
3. according to the wet method preparation process of the baby formula milk powder described in claims 1 or 2, it is characterized in that: the wall material that microcapsules are selected is one or more in lactalbumin, desalted whey powder, lecithin, maltodextrin, corn syrup, lactose.
4. according to the wet method preparation process of the baby formula milk powder described in claims 3, it is characterized in that: being operating as of step (7): step (5) is made to the original washing powder that mixture and step (6) make, be divided into 5 equal portions, and by part, add in mixer successively, repeat until add, open to be stirred to and mix.
5. according to the wet method preparation process of the baby formula milk powder described in claims 4, it is characterized in that: the condition of mixing is temperature: 20-25 ℃, humidity (RH)≤30-35%, air purity is 100,000 grades, the water activity of all raw materials (Aw)≤0.5.
6. according to the wet method preparation process of the baby formula milk powder described in claims 5, it is characterized in that: vitamin microcapsule is first to add purified water to be dissolved into lactoalbumin soln PURE WHEY, add the B B-complex that wall material is 4-6:1 than core quality; After mixing, cooling by low temperature spray drying after, obtain vitamin powder, or first add purified water to be dissolved into solution maltodextrin, then with B B-complex, wall material is after 5-8:1 mixes than core quality, through low temperature spray drying, obtain vitamin powder after cooling.
7. according to the dry preparation process of the baby formula milk powder described in claims 6, it is characterized in that: mineral matter microencapsulation is that added mineral matter is dissolved in a small amount of purified water and makes suspension, again mineral matter quality 0.5-1 lecithin is doubly dispersed in mineral matter suspension, fully stirring, emulsification, until mix; Semi-solid goods are poured in container, dry in freeze drier; Dried sample is crushed to regulation order number and obtains mineral matter powder.
8. according to the dry preparation process of the baby formula milk powder described in claims 7, it is characterized in that: vegetable oil microencapsulation is that vegetable oil is placed in to ultrasonic emulsification machine, add lactose, a small amount of lecithin to carry out emulsification, wall material is 1-1.2:1 than core quality, homogeneous, ultrasonic emulsification become uniform solution, spraying is drying to obtain plant fat powder, or take desalted whey powder as wall material, by the oils in other nutrients and the abundant mixing and emulsifying of wall material, wall material and core mass ratio 1-1.2:1, by low-temperature reduced-pressure be dried, cooling rear pulverizing obtain plant fat powder.
9. according to the dry preparation process of the baby formula milk powder described in claims 7, it is characterized in that: oils nutrient microencapsulation is to take desalted whey powder to coordinate corn syrup be wall material, oils in other nutrients is mixed with wall material, wall material is 3-4:1 than core quality, by low temperature spray drying, cooling after and get final product, or vegetable oil is placed in to ultrasonic emulsification machine, adding mass ratio is PURE WHEY and the lactose of 3:1, wall material core mass ratio is 2-3:1, homogeneous, ultrasonic emulsification become after uniform solution, and spraying is drying to obtain.
10. according to the dry preparation process of the baby formula milk powder described in claims 8, it is characterized in that: Fe composition microencapsulation is that core vitamin C, ferric pyrophosphate, lactoferrin are dissolved in a certain amount of purified water and make solution, again lactalbumin and the maltodextrin of wall material mass ratio 7:3 are dispersed in solution, control wall material and core mass ratio and be controlled at 2-3:1, fully stir, until mix; Semi-solid goods, by low temperature spray drying, are crushed to regulation order number by dry sample and obtain Fe composition.
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