CN102511558B - Liquid milk applicable to babies 6-12 months old and production method of liquid milk - Google Patents
Liquid milk applicable to babies 6-12 months old and production method of liquid milk Download PDFInfo
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Abstract
The invention relates to liquid milk applicable to babies 6-12 months old and a production method of the liquid milk. The liquid milk contains proteins, fat, carbohydrate, vitamin A, vitamin D, vitamin E, vitamin K1, vitamin B1, vitamin B2, vitamin B6, vitamin B12, niacin, folacin, pantothenic acid, vitamin C, biotin, sodium, potassium, cuprum, magnesium, ferrum, calcium, zinc, phosphorus, iodine, chlorine and lactoferrin in specific contents. The liquid milk is comprehensively nutrient and provides energies within a specific range, and is suitable for serving as a breast milk substitute for babies 6-12 months old. Thermosensitive materials are separated from other materials for treatment in the production method, different process combinations are used to treat the materials, the combination of membrane filtering and low-temperature sterilization is used to treat the thermosensitive water-soluble materials, and accordingly degeneration and loss of nutrients in the raw materials are avoided, and the obtained product is especially suitable for babies.
Description
Technical field
The present invention relates to liquid milk technical field, particularly relate to a kind of to-feed infant milk and production method thereof that is applicable to 6 to 12 months.
Background technology
Babies is significant in life period, breast milk is undoubtedly the optimal wholefood of baby, but due to reasons such as working condition, occupation, diseases, the nursing present situation of breast milk is unsatisfactory, show according to interrelated data, China 6 was to the baby breastfeeding rate of 12 months: city is about 12%, rural area is about 50%, and infant's milk powder substitute kind is limited in current China market, nutritional labeling is not comprehensive yet, and the infant formula of therefore producing reasonably, be applicable to infant growth is extremely urgent.
Concerning baby, best food is breast milk, because contain the necessary nutriment of infant physical growth in breast milk and strengthen the composition of infant immunity, but now in society, often cause for various reasons a lot of women breast-feeding their children to provide enough breast milks for baby, we just have to find a kind of method, obtain a kind of substitute that can replace in some sense breast milk.
Milk be up to now people can obtain from occurring in nature approach perfect a kind of food most, animal protein, butter oil and vitamin etc. that he not only can provide health and brain to grow needed high-quality to people, but also be the optimal selection of calcium replenishing.
But make a big difference on the composition of breast milk and milk, wherein for example aliphatic acid composition makes a big difference with breast milk, lack linoleic acid plus linolenic acid, also lack eicosatetraenoic acid (ARA) and DHA (DHA), in prior art, there is a lot of baby milks to make every effort to accomplish approach with breast milk, people, always constantly exploring and effort, from composition and function, make the composition proportion of baby milk more and more approach breast milk for this reason.
But, the milk powder reduction of need to washing by water, and need to control the temperature of dissolved water, temperature is too low can not fully dissolve milk powder, temperature is too high easily can scald, but also needs the special instrument such as feeding bottle, nipple, and these instruments need to be with rear cleaning, use rear sterilization, can increase many burdens and cause some inconvenience to young father and mother, cannot meet modern allegro life.
To-feed infant milk is as a kind of emerging product, and also nobody produces at home at present.Only have a small amount of research, from existing research, its sterilization mode and existing common dairy technology are as broad as long, are all with thermal sterilization, comprise pasteurize, superhigh temperature (UHT) sterilizing, steam injection type sterilization etc.These sterilization modes are all to utilize heat killing microorganisms, and it also can cause the nutritive loss of product self in kill microorganisms.
Membrane filtration isolation technics, comprises micro-filtration, ultrafiltration, nanofiltration, counter-infiltration and electrodialysis etc., also can be for degerming, avoid the harmful effect of high temperature to nutritional labeling simultaneously.
But, prior art is little to the research of baby's liquid milk, substantially concentrates on babies ' formula milk powder, and prior art is not also utilized research and the application of the technology such as membrane filtration in baby milk is produced.Only there are the certain applications in other field, for example utilize membrane filtration technique carry out tea beverage production, utilize thermal sterilization technology to carry out the production etc. of liquid milk dairy products, and existing simple membrane filtration technique and thermal sterilization are produced the technology of liquid dairy products and also still can not be met the needs that baby milk is produced.
Main cause be 6 to 12 months to-feed infant milk formula particularity and there are more technological difficulties:
(1) protein content of whey is high, easily causes albuminous degeneration through stronger thermal sterilization, and nutritive value reduces, and then has influence on digesting and assimilating of albumen.
(2) in product, contain very many trace elements, being heated, easily loss, especially vitamin are very many through stronger thermal sterilization loss.
(3) simultaneously product will reach 2 months above shelf-lifves, under the prerequisite of the preservation nutritional labeling of maximum possible, remove most microorganisms.
(4) baby's liquid milk complicated component, the product stability of shelf life is difficult to control.
Summary of the invention
Therefore, the object of this invention is to provide a kind of to-feed infant milk and production method thereof that is applicable to 6 to 12 months.The invention provides the favorable substitutes of a kind of to-feed infant milk as breast milk, the good liquid nutritional of the baby source that it can serve as 6 to 12 months, comprehensively meets this age bracket infants growth and development demand.The present invention also provides a kind of method of producing this to-feed infant milk, and it has avoided the heat loss of vitamin and the thermal denaturation of lactalbumin effectively, is more conducive to brephotrophic comprehensive absorption.
According to a first aspect of the invention, provide a kind of to-feed infant milk that is applicable to 6 to 12 months, its formula comprises following nutritional labeling (in every 100g):
Protein 1.75g～4.26g beyond lactoferrin, fat 1.75g～4.97g, vitamin A 42.5 μ g～191.7 μ g RE (retinol equivalent), vitamin D 0.625 μ g～2.6625 μ g, vitamin E >=0.375mg α-TE (alpha-tocopherol equivalent), phytomenadione >=2.5 μ g, vitamin B1 >=27.5 μ g, vitamin B2 >=27.5 μ g, vitamin B6 >=27.5 μ g, cobalamin >=0.1 μ g, nicotinic acid (or niacinamide) >=275 μ g, folic acid >=2.5 μ g, pantothenic acid >=175 μ g, vitamin C >=4.5mg, biotin >=1 μ g, sodium≤71mg, potassium 45mg～244.95mg, copper 17.5 μ g～124.25 μ g, magnesium >=3.5mg, iron 0.625mg～1.775mg, zinc 0.25mg～1.065mg, calcium >=42.5mg, phosphorus >=20.75mg, iodine >=3.5 μ g, chlorine≤184.6mg, lactoferrin 5～13mg and carbohydrate, the amount of carbohydrate is 250kJ～355kJ for itself and protein and the fatty energy providing are altogether provided.
According to a preferred version of the present invention, described to-feed infant milk also comprises following food additives: the combination of one or more in carragheen 0.005 % by weight～0.05 % by weight, glycerin monostearate 0.01 % by weight～1 % by weight, guar gum 0.01 % by weight～0.1 % by weight, locust bean gum 0.01 % by weight～0.1 % by weight.
According to a preferred version of the present invention, in the composition of the protein beyond described lactoferrin, casein is provided by one or more in casoid flour, skim milk, skimmed milk power, lactalbumin is provided by whey powder, WPC or whey isolate protein, casein and whey protein proportions are 3: 7～7: 3 (weight ratio), are preferably 6: 4.
According to a preferred version of the present invention, in the composition of described fat, fat is provided by one or more in anhydrous butter oil, soybean oil, corn oil, palm oil, olive oil, and in every 100g liquid milk, linoleic acid >=0.175g.
According to a preferred version of the present invention, wherein the ratio of calcium phosphorus is 1: 1～2: 1 (mol ratio).
In addition, in to-feed infant milk formulation product of the present invention, preferably ash content≤5.3 % by weight.
According to a preferred version of the present invention, described to-feed infant milk can also comprise following composition (in every 100g): 1% of 0.5 % by weight of manganese 0.625 μ g～85.2 μ g, selenium 1.2 μ g～6.745 μ g, choline 4.25mg～42.6mg, inositol 2.5mg～33.725mg, taurine≤10.65mg, l-cn >=0.75mg, DHA amount≤TFA amount, DHA amount≤ARA amount≤TFA amount.
According to a further aspect in the invention, provide the production method of to-feed infant milk, the method comprises the following steps:
(1) with 40 ℃～50 ℃ warm water solubilising protein class raw materials (comprising protein (as casein and lactalbumin etc.) and lactoferrin), B family vitamin (comprising vitamin B1, B2, B6, B12, nicotinic acid, folic acid, pantothenic acid and biotin etc.) and the vitamin C that account for total dosage 20 % by weight～30 % by weight.
(2) dissolve carbohydrate raw material and food additives (as carragheen, glycerin monostearate, guar gum, locust bean gum etc.) with 60 ℃～80 ℃ warm water that account for total dosage 15 % by weight～20 % by weight.With 30 ℃～50 ℃ warm water dissolved minerals (comprising sodium, potassium, copper, magnesium, iron, zinc, calcium, phosphorus, iodine, chlorine etc.) that account for total dosage 10 % by weight～20 % by weight, dissolve other raw material (as other vitamin) by 40 ℃～50 ℃ fats feed liquids.Above-mentioned three parts of feed liquids of having dissolved are mixed.
(3) feed liquid step (1) being obtained is by membrane filtration degerming processing.
The step of above-mentioned membrane filtration at least comprises that making feed liquid is the microfiltration membranes of 0.2 μ m～0.45 μ m by aperture, then through sterilization in 72 ℃～90 ℃, 4 seconds～15 seconds.Preferred version is that to make feed liquid be first the microfiltration membranes of 20 μ m through aperture, then is the microfiltration membranes of 0.2 μ m～0.45 μ m through aperture, then through sterilization in 75 ℃～80 ℃, 10 seconds～15 seconds.
(4) feed liquid mixing (i.e. the mixed liquor of the carbohydrate in this step, food additives, mineral matter, fats feed liquid) step (2) being obtained was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds～6 seconds.
(5) feed liquid above-mentioned steps (3) and (4) being obtained is carried out aseptic mixing, and water is settled to total dosage.
(6) above-mentioned mixed feed liquid is carried out to aseptic homogeneous.
(7) sterile filling, packing.
As mentioned above, to-feed infant milk comprehensive nutrition of the present invention and excellent in stability, be the favorable substitutes of breast milk, and the good liquid nutritional of the baby source that it can serve as 6 to 12 months, comprehensively meets this stage infants growth and development demand.The production method of to-feed infant milk of the present invention is removed microorganism under the prerequisite of the preservation nutritional labeling of maximum possible, the heat loss of vitamin and the thermal denaturation of lactalbumin are effectively avoided, more be conducive to brephotrophic comprehensive absorption, and the shelf-life is also longer.
The specific embodiment
Below embodiments of the present invention are described, but should be understood that this is not intended to the present invention to be limited to the disclosed specific embodiment.
To-feed infant milk provided by the invention is applicable to the baby of 6～12 months, and its comprehensive nutrition is the favorable substitutes of breast milk, and it can serve as the good liquid nutritional of this stage baby source, comprehensively meets this stage infants growth and development demand.
To-feed infant milk proem matter of the present invention comprises following nutritional labeling (in every 100g): the protein 1.75g～4.26g beyond lactoferrin, fat 1.75g～4.97g, energy 250kJ～355kJ, vitamin A 42.5 μ g～191.7 μ g RE, vitamin D 0.625 μ g～2.6625 μ g, vitamin E >=0.375mg α-TE, phytomenadione >=2.5 μ g, vitamin B1 >=27.5 μ g, vitamin B2 >=27.5 μ g, vitamin B6 >=27.5 μ g, cobalamin >=0.1 μ g, nicotinic acid (or niacinamide) >=275 μ g, folic acid >=2.5 μ g, pantothenic acid >=175 μ g, vitamin C >=4.5mg, biotin >=1 μ g, sodium≤71mg, potassium 45mg～244.95mg, copper 17.5 μ g～124.25 μ g, magnesium >=3.5mg, iron 0.625mg～1.775mg, zinc 0.25mg～1.065mg, calcium >=42.5mg, phosphorus >=20.75mg, iodine >=3.5 μ g, chlorine≤184.6mg, lactoferrin 5～13mg and carbohydrate, the amount of carbohydrate is 250kJ～355kJ for itself and protein and the fatty energy providing are altogether provided.
In order to improve the character such as stability of liquid milk system, can also add wherein and in some baby milk, allow the food additives that add, as emulsion stabilizer etc.In the present invention, preferably add wherein following food additives: the combination of one or more in carragheen 0.005 % by weight～0.05 % by weight, glycerin monostearate 0.01 % by weight～1 % by weight, guar gum 0.01 % by weight～0.1 % by weight, locust bean gum 0.01 % by weight～0.1 % by weight.
For the protein beyond above-mentioned lactoferrin, conventional is casein and lactalbumin, wherein, casein can be provided by one or more in casoid flour, skim milk, skimmed milk power, and lactalbumin can be provided by whey powder, WPC or whey isolate protein.In addition, preferably, provide protein with casein and lactalbumin, and casein and whey protein proportions be 3: 7～7: 3 (weight ratio), more preferably 6: 4.
As above-mentioned fat, can be provided by one or more in anhydrous butter oil, soybean oil, corn oil, palm oil, olive oil, and also preferably, in every 100g liquid milk, linoleic acid >=0.175g.
For the control of energy, can realize by the quantity and the ratio that regulate protein (in body, production capacity is about 17kJ/g), fat (about 37kJ/g) and carbohydrate (about 17kJ/g).As carbohydrate, can use carbohydrate conventional in baby food, as one or more in lactose, glucose, sucrose, fructose and dextrin.
For trace element, in to-feed infant milk of the present invention, calcium phosphorus ratio is preferably 1: 1～2: 1 (mol ratio).In addition, in to-feed infant milk formulation product of the present invention, preferably ash content≤5.3 % by weight.
In order to make baby milk nutrition more comprehensive, to-feed infant milk of the present invention preferably also comprises following composition (in every 100g): 1% of 0.5 % by weight of manganese 0.625 μ g～85.2 μ g, selenium 1.2 μ g～6.745 μ g, choline 4.25mg～42.6mg, inositol 2.5mg～33.725mg, taurine≤10.65mg, l-cn >=0.75mg, DHA amount≤TFA amount, DHA amount≤ARA amount≤TFA amount.
For the production method of to-feed infant milk of the present invention, can use any method of the final products that can produce the nutritional labeling that contains above-mentioned content.But, preferably use the production method comprising the following steps:
(1) with 40 ℃～50 ℃ warm water solubilising protein class raw materials, B family vitamin and vitamin Cs accounting for total dosage 20 % by weight～30 % by weight.
(2) dissolve carbohydrate raw material and food additives (as carragheen, glycerin monostearate, guar gum, locust bean gum etc.) with 60 ℃～80 ℃ warm water that account for total dosage 15 % by weight～20 % by weight.With 30 ℃～50 ℃ warm water dissolved minerals that account for total dosage 10 % by weight～20 % by weight, dissolve other raw material by 40 ℃～50 ℃ fats feed liquids.Above-mentioned three parts of feed liquids of having dissolved are mixed.
(3) feed liquid step (1) being obtained is by membrane filtration degerming processing.This membrane filtration step at least comprises that making feed liquid is the microfiltration membranes of 0.2 μ m～0.45 μ m by aperture, then through sterilization in 72 ℃～90 ℃, 4 seconds～15 seconds.Preferably making feed liquid is first the microfiltration membranes of 20 μ m through aperture, then is the microfiltration membranes of 0.2 μ m～0.45 μ m through aperture, then through sterilization in 75 ℃～80 ℃, 10 seconds～15 seconds.As microfiltration membranes, can use the commercially available microfiltration membranes with respective aperture.
(4) feed liquid mixing step (2) being obtained was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds～6 seconds.
(5) feed liquid above-mentioned steps (3) and (4) being obtained is carried out aseptic mixing, and water is settled to total dosage.
(6) above-mentioned mixed feed liquid is carried out to aseptic homogeneous.
(7) sterile filling, packing.
So the present invention has mainly solved following technological difficulties and has produced corresponding useful effect:
(1) the present invention adopts thermo-responsive material and other material separately to process, and adopts respectively different process combination, reaches killing microorganisms on the basis of preservation nutrition of maximum possible, extends the effect of shelf life of products.
(2) heat sensitive Water-solubility Material is adopted to membrane filtration and low thermally-sterilized combination, avoided material nutrient component loss and sex change, under the prerequisite of the preservation nutritional labeling of maximum possible, remove microorganism.
Wherein, with 40 ℃～50 ℃ warm water solubilising protein class raw materials, and make feed liquid pass through the microfiltration membranes of aperture 0.2 μ m～0.45 μ m, so both can remove the microorganism of the overwhelming majority in feed liquid, avoided again the thermal denaturation of lactalbumin; And, in conjunction with the low intensity heat sterilization of 72 ℃～90 ℃, 4 seconds～15 seconds (preferably 75 ℃～80 ℃, 10 seconds～15 seconds), kill microorganism residual in feed liquid, preserve to greatest extent again nutritional labeling wherein.On the other hand, with 40 ℃～50 ℃ warm water dissolving B family vitamins and vitamin C, and make feed liquid pass through the microfiltration membranes of aperture 0.2 μ m～0.45 μ m, so both can remove the microorganism of the overwhelming majority in feed liquid, avoided again the thermal denaturation of vitamin; And in conjunction with the low intensity heat sterilization of 72 ℃～90 ℃, 4 seconds～15 seconds (preferably 75 ℃～80 ℃, 10 seconds～15 seconds), kill microorganism residual in feed liquid, preserve to greatest extent again nutritional labeling wherein.
(3) adopt specific nutrient combination formula, guaranteeing provides enough nutritional supports to 6 to 12 months babies.
(4) adopt specifically batching, addition and combination thereof, guaranteed the product stability of product shelf phase.
Embodiment
The present invention is described in detail by the following examples, but not it should be noted that and the present invention should be interpreted as and be confined to disclosed instantiation.
Embodiment: a kind of to-feed infant milk that is applicable to 6 to 12 months
Its formula comprises following nutritional labeling (every 100g):
Protein 2.2g, fatty 3.0g, lactose 9.0g, vitamin A 80 μ gRE, vitamin D 1.5 μ g, vitamin E 1mg α-TE, phytomenadione 6 μ g, vitamin B1 70 μ g, vitamin B2 70 μ g, vitamin B6 200 μ g, cobalamin 0.5 μ g, nicotinic acid 350 μ g, folic acid 3.5 μ g, pantothenic acid 200 μ g, vitamin C 7mg, biotin 2 μ g, sodium 50mg, potassium 70mg, copper 80 μ g, magnesium 30mg, iron 1mg, zinc 0.7mg, calcium 80mg, phosphorus 45mg, iodine 20 μ g, chlorine 100mg, lactoferrin 10mg, energy is about 300kJ.
Use following food additives: carragheen 0.02%, glycerin monostearate 0.1%, guar gum 0.05%.
In protein composition, provide casein by skimmed milk power, provide lactalbumin by whey isolate protein, casein and whey protein proportions are 6: 4.
In fat composition, fat is provided with arbitrary proportion combination by anhydrous butter oil, soybean oil, corn oil, but wherein in the total dosage of 100g, containing linoleic acid 0.5g.
Production method is as follows, and raw material and technique all meet relevant national standard.
(1) with 40 ℃～50 ℃ warm water soluble proteins (comprising casein, lactalbumin, lactoferrin), B family vitamin and the vitamin C that account for total dosage 30%.
(2) dissolve the food additives such as carbohydrate raw material and carragheen, glycerin monostearate, guar gum with 60 ℃～80 ℃ warm water that account for total dosage 20%.With 30 ℃～50 ℃ warm water dissolved minerals that account for total dosage 20%, dissolve other raw material by 40 ℃～50 ℃ fats feed liquids.Above-mentioned three parts of feed liquids of having dissolved are mixed.
(3) feed liquid step (1) being obtained is by membrane filtration degerming processing.Making feed liquid is first the microfiltration membranes of 20 μ m through aperture, then is the microfiltration membranes of 0.4 μ m through aperture, then through sterilization in 75 ℃, 15 seconds.
(4) feed liquid mixing step (2) being obtained was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds.
(5) feed liquid above-mentioned steps (3) and (4) being obtained is carried out aseptic mixing.And water is settled to total dosage.
(6) above-mentioned mixed feed liquid is carried out to aseptic homogeneous.
(7) sterile filling, packing.
Comparative example: a kind of to-feed infant milk
Its same embodiment that fills a prescription.
Production method is as follows, and raw material and technique all meet relevant national standard.
(1) with 600 ℃～80 ℃ warm water solubilising protein class raw materials (comprising casein, lactalbumin, lactoferrin), B family vitamin and the vitamin C that account for total dosage 30%.Dissolve the food additives such as carbohydrate raw material and carragheen, glycerin monostearate, guar gum with 60 ℃～80 ℃ warm water that account for total dosage 20%.With 30 ℃～50 ℃ warm water dissolved minerals that account for total dosage 10%, dissolve other raw material by 40～50 ℃ of fats feed liquids.Above-mentioned four parts of feed liquids of having dissolved are mixed.
(2) above-mentioned feed liquid is carried out to homogeneous processing (one-level homogenization pressure 250bar, double-stage homogenization pressure 50bar, 50 ℃).
(3) feed liquid was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds.
(4) sterile filling, packing.
For evaluating taste flavor, nutrient content and the stability of two kinds of liquid milks that make, carry out following experiment.
Experiment 1: products taste and local flavor are tasted experiment
Take the to-feed infant milk of the embodiment of the present invention and comparative example as test sample, carry out taste flavor and taste experiment.Trial test number is totally 60 people (each 30 people of masculinity and femininity of 18～28 years old), the product of the product to embodiment and comparative example is tasted (taste sample and be the fresh sample that in a week, production obtains) respectively, adopts three to select two difference analysis.
Experimental result is, only has 9 people to select correctly in 100 people, according to organoleptic analysis's evaluation table, illustrates that the two does not have significant difference.
Experiment 2: product nutrient testing result
According to standard method, the nutritional labeling of two kinds of liquid milks is detected, analysis result is as shown in table 1 below.
The Analysis of Nutritive Composition result of table 1 liquid milk
| Nutritional labeling | Embodiment | Comparative example |
| Protein, g | 2.2 | 2.2 |
| Fat, g | 3.0 | 3.0 |
| Carbohydrate, g | 9 | 9 |
| Vitamin A, μ gRE | 80 | 71 |
| Vitamin D, μ g | 1.5 | 1.45 |
| Vitamin E, mg α-TE | 1 | 0.9 |
| Phytomenadione, μ g | 6 | 4.5 |
| Vitamin B1, μ g | 70 | 64 |
| Vitamin B2, μ g | 70 | 65 |
| Vitamin B6, μ g | 100 | 91 |
| Cobalamin, μ g | 0.5 | 0.41 |
| Nicotinic acid, μ g | 350 | 340 |
| Folic acid, μ g | 3.5 | 3.2 |
| Pantothenic acid, μ g | 200 | 184 |
| Vitamin C, mg | 7 | 3.4 |
| Biotin, μ g | 2 | 1.9 |
| Sodium, mg | 50 | 50 |
| Potassium, mg | 70 | 70 |
| Copper, μ g | 80 | 80 |
| Magnesium, mg | 30 | 30 |
| Iron, mg | 1 | 1 |
| Zinc, mg | 0.7 | 0.7 |
| Calcium, mg | 80 | 80 |
| Phosphorus, mg | 45 | 45 |
| Iodine, μ g | 20 | 20 |
| Chlorine, mg | 100 | 100 |
| Lactoferrin, mg | There is biologically active | Non-activity |
As can be seen from the above data, in comparative example, in the case of same dosage, process raw material even if use classification, also still caused the loss of nutritional labeling, wherein various nutrient elements all has loss in various degree, and especially vitamin C etc. is defective, and make lactoferrin non-activity, can not satisfy the demand.Therefore, if will use conventional method to obtain and the to-feed infant milk of the same content of the present invention, just need to add more batching, thereby cause cost rising, and effect is unsatisfactory.
Experiment 3: product stability test experiments
Product take the embodiment of the present invention and comparative example is placed and is observed at normal temperature (18～25 ℃ of left and right) as test sample, analyzes with the stability to product by the structural state of observing product.
Visual observations method is: product sterile filling in trial jar, leaves standstill and places in 250ml Germany SCHOTT DURAN glass.Under static condition, see through the whole and part state in vial visual observations product, mainly focus on the following aspects of product: whether structural state has layering; Whether liquid level has bleed phenomenon; In product, whether there are gel and caking phenomenon; Fat floating situation.
Fat floating detection method is: product sterile filling, in the colorimetric cylinder of 100ml, leaves standstill and places.The ruler that is 0.5mm across vial wall by precision under static condition is measured the fat deposit thickness of milk surface white, and when reading, sight is looked squarely.
Specific experiment result is as following table 2.
Table 2 normal temperature stability inferior observed result: (18～25 ℃, 60 days)
Can be found out by stability experiment data, to-feed infant milk formula of the present invention is stable, can obtain the shelf life and the shelf-life that are suitable for transportation, sell.
Can be found out by above-mentioned experimental data, to-feed infant milk comprehensive nutrition of the present invention and excellent in stability, be the favorable substitutes of breast milk, and the good liquid nutritional of the baby source that it can serve as 6 to 12 months, comprehensively meets this stage infants growth and development demand.The production method of to-feed infant milk of the present invention is removed microorganism under the prerequisite of the preservation nutritional labeling of maximum possible, the heat loss of vitamin and the thermal denaturation of lactalbumin are effectively avoided, more be conducive to brephotrophic comprehensive absorption, and the shelf-life is also longer.
Claims (10)
1. be applicable to the to-feed infant milk of 6 to 12 months, in every 100g, described to-feed infant milk comprises food additives and following nutritional labeling:
Protein 1.75g～4.26g beyond lactoferrin, fat 1.75g～4.97g, vitamin A 42.5 μ g～191.7 μ g RE, vitamin D 0.625 μ g～2.6625 μ g, vitamin E >=0.375mg α-TE, phytomenadione >=2.5 μ g, vitamin B1 >=27.5 μ g, vitamin B2 >=27.5 μ g, vitamin B6 >=27.5 μ g, cobalamin >=0.1 μ g, nicotinic acid or niacinamide >=275 μ g, folic acid >=2.5 μ g, pantothenic acid >=175 μ g, vitamin C >=4.5mg, biotin >=1 μ g, sodium≤71mg, potassium 45mg～244.95mg, copper 17.5 μ g～124.25 μ g, magnesium >=3.5mg, iron 0.625mg～1.775mg, zinc 0.25mg～1.065mg, calcium >=42.5mg, phosphorus >=20.75mg, iodine >=3.5 μ g, chlorine≤184.6mg, lactoferrin 5～13mg and carbohydrate, the amount of carbohydrate is 250kJ～355kJ for itself and protein and the fatty energy providing are altogether provided,
Described to-feed infant milk is produced and is obtained by the method comprising the following steps:
(1) with 40 ℃～50 ℃ warm water solubilising protein class raw materials, B family vitamin and vitamin Cs accounting for total dosage 20 % by weight～30 % by weight;
(2) dissolve carbohydrate raw material and food additives with 60 ℃～80 ℃ warm water that account for total dosage 15 % by weight～20 % by weight, with 30 ℃～50 ℃ warm water dissolved minerals that account for total dosage 10 % by weight～20 % by weight, dissolve other raw material by 40 ℃～50 ℃ fats feed liquids, above-mentioned three parts of feed liquids of having dissolved are mixed;
(3) feed liquid step (1) being obtained is passed through membrane filtration degerming processing,
Wherein, the step of described membrane filtration at least comprises that making feed liquid is the microfiltration membranes of 0.2 μ m～0.45 μ m by aperture, then through sterilization in 72 ℃～90 ℃, 4 seconds～15 seconds;
(4) feed liquid mixing step (2) being obtained was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds～6 seconds;
(5) feed liquid above-mentioned steps (3) and (4) being obtained is carried out aseptic mixing, and water is settled to total dosage;
(6) above-mentioned mixed feed liquid is carried out to aseptic homogeneous;
(7) sterile filling, packing.
2. to-feed infant milk as claimed in claim 1, wherein, described food additives are: the combination of one or more in carragheen 0.005 % by weight～0.05 % by weight, glycerin monostearate 0.01 % by weight～1 % by weight, guar gum 0.01 % by weight～0.1 % by weight, locust bean gum 0.01 % by weight～0.1 % by weight.
3. to-feed infant milk as claimed in claim 1, in the composition of the protein beyond described lactoferrin, casein is provided by one or more in casoid flour, skim milk, skimmed milk power, lactalbumin is provided by whey powder, WPC or whey isolate protein, and the weight ratio of casein and lactalbumin is 3:7～7:3.
4. to-feed infant milk as claimed in claim 3, wherein, the weight ratio of casein and lactalbumin is 6:4.
5. to-feed infant milk as claimed in claim 1, wherein, described fat is provided by one or more in anhydrous butter oil, soybean oil, corn oil, palm oil, olive oil, and in every 100g liquid milk, linoleic acid >=0.175g.
6. to-feed infant milk as claimed in claim 1, wherein, the mol ratio of calcium and phosphorus is 1:1～2:1.
7. to-feed infant milk as claimed in claim 1, wherein, ash content≤5.3 % by weight.
8. to-feed infant milk as claimed in claim 1; described to-feed infant milk also comprises following composition: in every 100g, and 1% of 0.5 % by weight of manganese 0.625 μ g～85.2 μ g, selenium 1.2 μ g～6.745 μ g, choline 4.25mg～42.6mg, inositol 2.5mg～33.725mg, taurine≤10.65mg, l-cn >=0.75mg, DHA amount≤TFA amount, DHA amount≤ARA amount≤TFA amount.
9. the production method of the to-feed infant milk described in any one in claim 1～8, described production method comprises the following steps:
(1) with 40 ℃～50 ℃ warm water solubilising protein class raw materials, B family vitamin and vitamin Cs accounting for total dosage 20 % by weight～30 % by weight;
(2) dissolve carbohydrate raw material and food additives with 60 ℃～80 ℃ warm water that account for total dosage 15 % by weight～20 % by weight, with 30 ℃～50 ℃ warm water dissolved minerals that account for total dosage 10 % by weight～20 % by weight, dissolve other raw material by 40 ℃～50 ℃ fats feed liquids, above-mentioned three parts of feed liquids of having dissolved are mixed;
(3) feed liquid step (1) being obtained is passed through membrane filtration degerming processing,
Wherein, the step of described membrane filtration at least comprises that making feed liquid is the microfiltration membranes of 0.2 μ m～0.45 μ m by aperture, then through sterilization in 72 ℃～90 ℃, 4 seconds～15 seconds;
(4) feed liquid mixing step (2) being obtained was by the UHT sterilization treatment of 137 ℃～142 ℃, 4 seconds～6 seconds;
(5) feed liquid above-mentioned steps (3) and (4) being obtained is carried out aseptic mixing, and water is settled to total dosage;
(6) above-mentioned mixed feed liquid is carried out to aseptic homogeneous;
(7) sterile filling, packing.
10. production method as claimed in claim 9, wherein, the step of described membrane filtration is that to make feed liquid be first the microfiltration membranes of 20 μ m through aperture, then is the microfiltration membranes of 0.2 μ m～0.45 μ m through aperture, then through sterilization in 75 ℃～80 ℃, 10 seconds～15 seconds.
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