CN108094550A - A kind of milk powder containing fish oil and algae oil and preparation method thereof - Google Patents
A kind of milk powder containing fish oil and algae oil and preparation method thereof Download PDFInfo
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- CN108094550A CN108094550A CN201711374709.8A CN201711374709A CN108094550A CN 108094550 A CN108094550 A CN 108094550A CN 201711374709 A CN201711374709 A CN 201711374709A CN 108094550 A CN108094550 A CN 108094550A
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C9/00—Milk preparations; Milk powder or milk powder preparations
- A23C9/16—Agglomerating or granulating milk powder; Making instant milk powder; Products obtained thereby
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C9/00—Milk preparations; Milk powder or milk powder preparations
- A23C9/152—Milk preparations; Milk powder or milk powder preparations containing additives
- A23C9/1526—Amino acids; Peptides; Protein hydrolysates; Nucleic acids; Derivatives thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C9/00—Milk preparations; Milk powder or milk powder preparations
- A23C9/152—Milk preparations; Milk powder or milk powder preparations containing additives
- A23C9/1528—Fatty acids; Mono- or diglycerides; Petroleum jelly; Paraffine; Phospholipids; Derivatives thereof
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- A23C9/00—Milk preparations; Milk powder or milk powder preparations
- A23C9/152—Milk preparations; Milk powder or milk powder preparations containing additives
- A23C9/156—Flavoured milk preparations ; Addition of fruits, vegetables, sugars, sugar alcohols or sweeteners
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C9/00—Milk preparations; Milk powder or milk powder preparations
- A23C9/152—Milk preparations; Milk powder or milk powder preparations containing additives
- A23C9/158—Milk preparations; Milk powder or milk powder preparations containing additives containing vitamins or antibiotics
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C2210/00—Physical treatment of dairy products
- A23C2210/40—Microencapsulation; Encapsulation of particles
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Abstract
The present invention relates to a kind of milk powder containing fish oil and algae oil and preparation method thereof, the milk powder includes 80%~90% milk elements, 5%~13% inulin, 1%~4% lactose, 0.5%~1.0% beta cyclodextrin, 0.1%~0.6% fish oil extract, 0.1%~0.5% algae oil DHA, 0.3%~0.6% vitamin E, 0.05%~0.1% vitamin C, 0.05%~0.2% casein sodium, and the percentage accounts for the mass percent of milk powder for each ingredient.Method for preparing milk containing fish oil and algae oil by pretreated cow's milk and dissolved cow's milk dispensing mixing, obtains the mixed solution containing milk elements；By mixed solution homogeneous, sterilization, concentration, concentrated milk is obtained；Casein sodium, fish oil, algae oil are first added to the water stirring, inulin, lactose, beta cyclodextrin, vitamin E and vitamin C stirring is added and emulsion is made, above-mentioned percentage accounts for the mass percent of emulsion for each ingredient；Emulsified, homogeneous, sterilization, obtain emulsion and be added in concentrated milk, mixing is spray-dried to get the milk powder.
Description
Technical field
The present invention relates to dairy products fields, and in particular to a kind of milk powder containing fish oil and algae oil and preparation method thereof.
Background technology
Cardiovascular and cerebrovascular disease is a kind of serious threat mankind, particularly the common disease of 50 years old or more middle-aged and elderly people's health.Often
There are about 17,500,000 people in year worldwide to die of heart disease, accounts for the 30% of whole death tolls, heart disease has become threat
" number one killer " of human health.In China, about 2,600,000 people die of cardiovascular and cerebrovascular disease every year, and death toll ranks generation
Boundary second.China's heart disease has become trend occurred frequently, now suffers from 2,000,000 people, and 500,000 people of annual new hair just have a people to die of in every 20 seconds
Angiocardiopathy.According to the statistics of the World Health Organization, to the year two thousand twenty China every year because the number of angiocardiopathy death is up to 400
Ten thousand.Therefore the vascular health of heart and brain is vital for the life and health of middle-aged and elderly people.On the other hand, it is social
Aging trend person in middle and old age's dementia patients quantity is allowed to increase, the patient of middle national trouble senile dementia up to more than 900 ten thousand, it is contemplated that
The whole world will increase to 75,000,000 in the year two thousand thirty, and the year two thousand fifty will increase to 1.35 hundred million, and wherein China will increase to 30,000,000.At present dementia after
After cardiovascular disease, cerebrovascular disease and cancer, into " the fourth-largest killer " of aged health.And dementia has not been the elderly
" patent " is also increasing year by year for four or five ten years old with regard to dull-witted people's quantity.Research finds that senile dementia is just progressively being presented rejuvenation and is becoming
Gesture, and effect of the vasculogenic factor played in morbidity also becomes increasingly conspicuous.
The key of cardiovascular and cerebrovascular health and prevention dementia is all to prevent, and science diet is important preventive means.
Scientists are actively researched and developed the food ingredient for being beneficial to health of heart in recent years.It is reported that European Union's food security
(EFSA) expert group of office assesses the security of Omega-3 aliphatic acid, and expert group thinks every daily ingestion 2~4 gram 20
Carbon 5 alkene acid (EPA) can maintain normal blood pressure and triglyceride levels with docosahexaenoic acid (DHA).European Union committee member
Can also on May 16th, 2012 issue No. 432/2012 regulations of (EU) No, it is specified that daily intake 250mg EPA and DHA will be beneficial
In the normal cardiac function of maintenance.The most simple and effective desirable route for obtaining enough EPA and DHA is exactly to eat enough oceans
Fish, and fish in-vivo content it is most be then orbital portion, followed by fish oil.But the mankind directly obtain from marine fishes
Enough EPA and DHA are highly difficult, and modern science has been able to the high EPA and DHA of DNA purity, and ordinary consumer can
To achieve the purpose that extra-nutrition by the edible fish oil product rich in EPA and DHA.EU Committee recommends to daily intake
250mg EPA and DHA would be beneficial for maintaining normal cardiac function.Meanwhile research finds that algae oil DHA can make the old-age group of health
Change crowd enhances memory, it is made to possess than oneself small three years old crowd equal memory and learning ability, therefore daily edible
Algae oil DHA has certain prevention effect to senile dementia.
EPA and algae oil DHA are supplemented simultaneously, has the effect of certain to cardiovascular and cerebrovascular health and prevention dementia, the two is
It is complementary, all play an important roll to the quality of life for improving the elderly.But on the market only individually containing EPA or independent
Product containing algae oil DHA, but the product rich in EPA and algae oil DHA is not sold simultaneously, and EPA and DHA is with dense
Fishy smell, therefore the ordinary food of the EPA and DHA of this high-content are difficult commercialization.Individually contain EPA on the market or individually contain
The product of algae oil DHA, EPA or DHA raw materials are usually all that breast is made by spray drying in unclassified stores in the form of pulvis
Again using dry pigmentation addition after powder, advantage is process operation simplicity, but there is also larger shortcoming, i.e. the raw material of EPA and DHA
It is of high cost, exist and mix non-uniform situation, the risk for increasing microbial contamination etc..
The content of the invention
The purpose of the present invention is be directed to mid-aged population to provide one kind while containing EPA (eicosapentaenoic acid) and algae oil DHA
The prescription emulsifiable powder of (docosahexaenoic acid), provides a kind of manufacturing method, more particularly to a kind of EPA containing fish oil and algae oil DHA's
Milk powder and preparation method thereof.
The present invention is used by the wet method addition fish oil extract (being rich in EPA) in the manufacturing process of milk powder and algae oil DHA
Microcapsule embedded technology avoids the oxidation of EPA and DHA and increases its thermal stability, and obtains the reduction of product fishy smell, mouthfeel
Improve.The method of the present invention is on the basis of common milk powder manufacturing method, to EPA, DHA grease raw material and embedding in blending process
Material is emulsified, homogeneous, sterilization, then be uniformly mixed with other dispensings by dispensing, homogeneous, sterilization, the processes such as concentration, most
It is spray-dried afterwards and product is made.By emulsification, homogeneous, fish oil extract, DHA grease is made to reach embedding effect, form microcapsules
Particle, so as to achieve the purpose that increase stability, improve product special flavour and mouthfeel.
The present invention solves above-mentioned technical problem by the following technical programs.
A kind of preparation method of the milk powder containing fish oil and algae oil, comprises the following steps：
(1) raw milk pre-processes, and cow's milk dispensing, which is added in water, to be dissolved, and pretreated cow's milk and cow's milk after dissolving are matched somebody with somebody
Material is uniformly mixed, and obtains mixed solution；
(2) by mixed solution homogeneous, sterilization, concentration, concentrated milk is obtained；
(3) first 0.05%~0.2% casein sodium, 0.1%~0.6% fish oil, 0.1%~0.5% algae oil are added in
It is stirred in water, adds 5%~13% inulin, 1%~4% lactose, 0.5%~1.0% beta-cyclodextrin, 0.3%~0.6% dimension
Emulsion is made in raw element E and the stirring of 0.05%~0.1% vitamin C, and above-mentioned percentage accounts for the quality hundred of emulsion for each ingredient
Divide ratio；Emulsified, homogeneous, sterilization, obtain solid concentration mass percent be 25%~35% emulsion；
(4) emulsion in step (3) is added in the concentrated milk in step (2), be uniformly mixed, spray drying, i.e.,
Obtain the milk powder.
Further optimize, cow's milk dispensing in step (1), the cow's milk dispensing includes whole-fat milk powder, skimmed milk powder, desalted whey
One or more in powder or concentrated whey protein powder.
Further optimization, the temperature of the dissolving described in step (1) is 40~45 DEG C.
Further optimize, the solid concentration mass percent of mixed solution is 14%~16% in step (1).
Further optimize, the temperature of homogeneous is 55~60 DEG C in step (2), and the pressure of homogeneous is 18~20MPa, sterilizes temperature
It spends for 92~95 DEG C, sterilizing time is 20~25 seconds.
It is dense to be concentrated into solid content using triple effect vacuum falling film concentration method by further optimization, the middle concentration of step (2) for concentrated milk
It is 46%~50% to spend mass percent.
Further optimization, the temperature that step (3) stirs twice are 60~65 DEG C, and the time is 10~20 minutes.
Further optimization, step (3) homogenizing temperature are 60~65 DEG C, and homogenization pressure is 20~24MPa；Sterilization temperature is 90
~92 DEG C, sterilizing time is 20~25 seconds.
Further optimize, concentrated milk's temperature is increased to 70~73 DEG C in step (4) is spray-dried again；Spray drying
Inlet air temperature is 180~185 DEG C, temperature of outgoing air is 78~80 DEG C, pressure is 220~240bar.
Using milk powder made of the method for preparing milk containing fish oil and algae oil, the milk powder includes 80%~90%
Milk elements, 5%~13% inulin, 1%~4% lactose, 0.5%~1.0% beta-cyclodextrin, the extraction of 0.1%~0.6% fish oil
Object, 0.1%~0.5% algae oil DHA, 0.3%~0.6% vitamin E, 0.05%~0.1% vitamin C, 0.05%~0.2%
Casein sodium, above-mentioned percentage account for the mass percent of milk powder for each ingredient.
Compared with prior art, the beneficial effects of the present invention are：
Milk powder made from the method for the present invention is not only simultaneously containing fish oil (containing abundant EPA) and algae oil DHA, but also wet
During adding fish oil (be rich in EPA), DHA grease under the conditions of method, using beta-cyclodextrin, casein sodium, inulin and lactose,
The wall material that vitamin C and vitamin E are embedded as microencapsulation can significantly improve the stability of EPA, DHA and improve product wind
Taste.Milk powder made from the method for the present invention simultaneously containing fish oil (containing abundant EPA) and algae oil DHA, to cardiovascular and cerebrovascular health with
Prevention dementia has the effect of certain, plays an important roll to the quality of life for improving the elderly.
Description of the drawings
Fig. 1 is the flow diagram of the preparation method of the present invention containing fish oil and algae oil person in middle and old age's milk powder.
Specific embodiment
Embodiment of the present invention is described in detail with reference to embodiment and Figure of description,
It will be appreciated by those skilled in the art that the following example is merely to illustrate the present invention, and it is not construed as the limitation present invention's
Scope.
Below by technical solution, it is described further for the content of the invention
The present invention provides a kind of EPA containing fish oil and the milk powder of algae oil DHA, component includes：80~90% milk elements,
5~13% inulin, 1~4% lactose, 0.5~1.0% beta-cyclodextrin, 0.1~0.6% fish oil extract, 0.1~0.5% algae oil
DHA, 0.3~0.6% vitamin E, 0.05~0.1% vitamin C, 0.05~0.2% casein sodium, the percentage are each
Ingredient accounts for the mass percent of milk powder.
In the present invention, the milk elements refer to the surplus materials after moisture is removed except cow's milk, including whole-fat milk powder, skimmed milk
One or more in powder, desalted whey powder and concentrated whey protein powder preferably meet the complete of standard GB/T 19644
Fat milk powder or skimmed milk powder and the whey powder and concentrated whey protein powder for meeting standard GB/T 11674.
In the present invention, the raw material is food-grade, commercially available.
The present invention also provides the preparation method of the EPA containing fish oil and the milk powder of algae oil DHA, including following steps
Suddenly：
(1) raw milk is checked and accepted and pre-processed；
(2) dispensing：The dispensings such as milk elements are dissolved, then are uniformly mixed with purified cow's milk；
(3) homogeneous, sterilization, concentration：The ingredients solution that step (2) is obtained carries out homogeneous, sterilization, concentration, is concentrated
Breast；
(4) grease emulsifying is handled：By inulin, lactose, fish oil extract and algae oil DHA grease, vitamin C, vitamin E,
Emulsion is made in casein sodium, is emulsified, homogeneous, sterilization processing；
(5) mix：The emulsion that step (4) obtains is added in the concentrated milk that step (3) obtains, be uniformly mixed；
(6) spray drying is to get the milk powder containing EPA and DHA.
Further, in step (2), the raw materials such as milk elements is added in 40 DEG C~45 DEG C water, are sufficiently stirred molten
It is mixed after solution with cow's milk, adjustment ingredients solution solid concentration is 14~16% (wt).
Further, in step (3), the temperature of homogeneous is 55 DEG C~60 DEG C, and homogenization pressure is 18MPa~20MPa.It kills
Bacterium temperature is 92 DEG C~95 DEG C, and sterilizing time is 20~25 seconds.Concentration is concentrated into solid content using triple effect vacuum falling film concentration method
Concentration is 46~50% (wt).
Further, in step (4), inulin, lactose, fish oil extract and algae oil DHA grease, vitamin C, dimension are given birth to
Emulsion is made in plain E, casein sodium, is emulsified, homogeneous, sterilization processing.First by casein sodium, fish oil extract and algae
Oily DHA grease is added in 60 DEG C~65 DEG C of water, quickly stir 10~20 minutes, add inulin, lactose, beta-cyclodextrin,
Vitamin C, vitamin E, then quickly stirring 10~20 minutes.Homogenizing temperature be 60 DEG C~65 DEG C, homogenization pressure for 20MPa~
24MPa.Sterilization temperature is 90 DEG C~92 DEG C, and sterilizing time is 20~25 seconds.
Further, in step (6), concentrated milk's temperature is increased to 70 DEG C~73 DEG C and is spray-dried again.Spraying
Dry inlet air temperature is 180 DEG C~185 DEG C, temperature of outgoing air is 78 DEG C~80 DEG C, pressure is 220bar~240bar.
Percentage described in following embodiments is mass percent unless otherwise specified.
The source of part material is as follows in following embodiments：
Raw milk：Ma Qiao factories of Shanghai Bright Dairy ＆ Food Co., Ltd., raw material sources are cow's milk.
Whole-fat milk powder：Common specification, dairy company Fonterra of New Zealand, raw material sources are cow's milk.
Skimmed milk powder：Common specification, dairy company Fonterra of New Zealand, raw material sources are cow's milk.
Desalted whey powder：Specification D70 or D90, dimension Aktiebolaget Leo (SE) Box 941, S-251 09 Helsingborg, Sweden of Finland, raw material sources are whey.
Whey protein concentrate：Specification WPC34, dimension Aktiebolaget Leo (SE) Box 941, S-251 09 Helsingborg, Sweden of Finland, raw material sources are whey.
Inulin：Belgian ORAFT I companies, raw material sources are witloof.
Lactose：Food-grade, Dutch DMV companies, raw material sources are cow's milk.
Beta-cyclodextrin：Xin Rong foreign trades Co., Ltd, raw material sources are starch.
Fish oil extract：BASF Corp. of Germany, raw material sources are fish oil.
Algae oil DHA：Wuhan Jia Biyou companies, raw material sources are to split pot algae.
Vitamin C, vitamin E：Food-grade, BASF Corp. of Germany.
Casein sodium phosphate：Food-grade, Dai Weilin companies, raw material sources are cow's milk.
Embodiment 1
The milk powder formula of EPA containing fish oil and algae oil DHA (in terms of 1000kg milk powder products)
Preparation method：
1. raw milk is checked and accepted and pretreatment：It will again be filtered, purify, cool down after raw milk progress physical and chemical inspection qualification.
2. dispensing：The milk elements dispensing such as whole-fat milk powder powder, skimmed milk powder is added in 40 DEG C of water, is sufficiently stirred molten
Solution, then be uniformly mixed with purified cow's milk, adjustment ingredients solution solid concentration is 14% (wt)；
3. homogeneous, sterilization, concentration：The ingredients solution that step (2) is obtained carries out homogeneous, sterilization, concentration, is concentrated
Breast.The temperature of homogeneous is 55 DEG C, and the pressure of homogeneous is 18MPa, and sterilization temperature is 92 DEG C, and sterilizing time is 20 seconds.Concentration uses
Triple effect vacuum falling film concentration method is concentrated into solid concentration as 46% (wt).
4. grease emulsifying is handled：By inulin, lactose, fish oil extract and algae oil DHA grease, vitamin C, vitamin E, junket
Emulsion is made in protein acid sodium, is emulsified, homogeneous, sterilization processing.First by casein sodium, fish oil extract and algae oil DHA
Grease is added in 60 DEG C of water, and quick stirring 10 minutes adds inulin, lactose, beta-cyclodextrin, vitamin C, vitamin E,
Quick stirring 10 minutes again.Homogenizing temperature is 60 DEG C, homogenization pressure 20MPa.Sterilization temperature is 90 DEG C, sterilizing time 20
Second.Obtain the emulsion that solid concentration mass percent is 25%.
5. mixing：The emulsion that step (4) obtains is added in the concentrated milk that step (3) obtains, be uniformly mixed；
6. spray drying：Concentrated milk's temperature is increased to 70 DEG C to be spray-dried again, inlet air temperature is 180 DEG C, air draft
Temperature is 78 DEG C, pressure is 220bar to get the milk powder containing EPA and DHA.
Embodiment 2
The milk powder formula of EPA containing fish oil and algae oil DHA (in terms of 1000kg milk powder products)
Preparation method：
1. raw milk is checked and accepted and pretreatment：It will again be filtered, purify, cool down after raw milk progress physical and chemical inspection qualification.
2. dispensing：The milk elements dispensing such as desalted whey powder, concentrated whey protein powder is added in 45 DEG C of water, is fully stirred
Dissolving is mixed, then is uniformly mixed with purified cow's milk, adjustment ingredients solution solid concentration is 16% (wt)；
3. homogeneous, sterilization, concentration：The ingredients solution that step (2) is obtained carries out homogeneous, sterilization, concentration, is concentrated
Breast.The temperature of homogeneous is 60 DEG C, and the pressure of homogeneous is 20MPa, and sterilization temperature is 95 DEG C, and sterilizing time is 25 seconds.Concentration uses
Triple effect vacuum falling film concentration method is concentrated into solid concentration as 50% (wt).
4. grease emulsifying is handled：By inulin, lactose, fish oil extract and algae oil DHA grease, vitamin C, vitamin E, junket
Emulsion is made in protein acid sodium, is emulsified, homogeneous, sterilization processing.First by casein sodium, fish oil extract and algae oil DHA
Grease is added in 65 DEG C of water, and quick stirring 20 minutes adds inulin, lactose, beta-cyclodextrin, vitamin C, vitamin E,
Quick stirring 20 minutes again.Homogenizing temperature is 65 DEG C, homogenization pressure 24MPa.Sterilization temperature is 92 DEG C, sterilizing time 25
Second.Obtain the emulsion that solid concentration mass percent is 35%.
5. mixing：The emulsion that step (4) obtains is added in the concentrated milk that step (3) obtains, be uniformly mixed；
6. spray drying：Concentrated milk's temperature is increased to 73 DEG C to be spray-dried again, inlet air temperature is 185 DEG C, air draft
Temperature is 80 DEG C, pressure is 240bar to get the milk powder containing EPA and DHA.
Embodiment 3
The milk powder formula of EPA containing fish oil and algae oil DHA (in terms of 1000kg milk powder products)
Preparation method：
1. raw milk is checked and accepted and pretreatment：It will again be filtered, purify, cool down after raw milk progress physical and chemical inspection qualification.
2. dispensing：The milk elements dispensing such as skimmed milk powder, concentrated whey protein powder is added in 42 DEG C of water, is sufficiently stirred
Dissolving, then be uniformly mixed with purified cow's milk, adjustment ingredients solution solid concentration is 15% (wt)；
3. homogeneous, sterilization, concentration：The ingredients solution that step (2) is obtained carries out homogeneous, sterilization, concentration, is concentrated
Breast.The temperature of homogeneous is 58 DEG C, and the pressure of homogeneous is 19MPa, and sterilization temperature is 94 DEG C, and sterilizing time is 22 seconds.Concentration uses
Triple effect vacuum falling film concentration method is concentrated into solid concentration as 49% (wt).
4. grease emulsifying is handled：By inulin, lactose, fish oil extract and algae oil DHA grease, vitamin C, vitamin E, junket
Emulsion is made in protein acid sodium, is emulsified, homogeneous, sterilization processing.First by casein sodium, fish oil extract and algae oil DHA
Grease is added in 63 DEG C of water, and quick stirring 18 minutes adds inulin, lactose, beta-cyclodextrin, vitamin C, vitamin E,
Quick stirring 19 minutes again.Homogenizing temperature is 63 DEG C, homogenization pressure 22MPa.Sterilization temperature is 91 DEG C, sterilizing time 24
Second.Obtain the emulsion that solid concentration mass percent is 30%.
5. mixing：The emulsion that step (4) obtains is added in the concentrated milk that step (3) obtains, be uniformly mixed；
6. spray drying：Concentrated milk's temperature is increased to 72 DEG C to be spray-dried again, inlet air temperature is 183 DEG C, air draft
Temperature is 79 DEG C, pressure is 230bar to get the milk powder containing EPA and DHA.
Comparative example 1
The formula of comparative example 1
The preparation method of the comparative example is customary preparation methods, does not have the processing of step (4) grease emulsifying in preparation process
Process, and by the raw materials such as inulin, sucrose, fish oil extract and algae oil DHA grease, vitamin C, vitamin E, soybean protein isolate
It is all added in step (2) burden process, in addition, the preparation method of comparative example 1 is same as Example 1.
Comparative example 2
The formula of comparative example 2 is same as Example 2, and the preparation method of the comparative example is customary preparation methods, is prepared
There is no step (4) grease emulsifying processing procedure in journey, and by inulin, lactose, fish oil extract and algae oil DHA grease, vitamin
C, the raw materials such as vitamin E, casein sodium all add in step (2) burden process, in addition, the preparation side of comparative example 1
Method is same as Example 3.
Comparative example 3
The formula of comparative example 3
The preparation method of the comparative example is the identical preparation method of embodiment, in addition to this formula, the preparation method of comparative example 3
It is same as Example 3.
Preparation method of the present invention containing fish oil and algae oil milk powder carries out evaluation effect evaluation in terms of product special flavour：
The method of product special flavour subjective appreciation is as follows：Appropriate sample is taken to be placed in 50mL beakers, color is observed under natural light
Pool and structural state, hear its smell, are gargled with warm water, taste flavour.Results of sensory evaluation is when milk powder fishlike smell is heavier
More bad, results of sensory evaluation is very good when milk powder is without fishlike smell, and the evaluation result of product special flavour sense organ is with 5 points of point systems
It represents, the scale type and conversion fraction value to more than milk powder represent as follows：
| It is very good | It is good | Generally | It is bad | It is very bad |
| 5 | 4 | 3 | 2 | 1 |
Evaluation result is as follows：
| Sample number into spectrum | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Results of sensory evaluation | 4.0 | 4.5 | 3.5 | 2.0 | 2.5 | 2.0 |
Conclusion：From Analyses Methods for Sensory Evaluation Results as can be seen that in two groups of samples, embodiment 1,2,3 is with preparation method of the present invention
The flavor Analyses Methods for Sensory Evaluation Results of milk powder obtained is an advantage over comparative example 1,2,3, to the raw meat of fish oil extract and algae oil DHA grease
There is taste good embedding to cover effect, be most suitable for for the milk powder containing EPA and DHA of the present invention.
The preparation method of the milk powder of present invention EPA containing fish oil and algae oil DHA is commented in terms of the stability of EPA and DHA
Valency：
(milk powder sample is placed on temperature as 40 DEG C, humidity is the constant temperature of 75%RH by 40 DEG C of heat preservation accelerated tests
It is stored in constant humidity cabinet, EPA is carried out to milk powder sample 0 day, 60 days respectively and DHA content detects).The content of EPA and DHA is got over
Height illustrates that the stability of EPA and DHA in milk powder sample is better.The assay method of EPA and DHA is GB5413.27-2010.Evaluation
As a result it is as follows：
Conclusion：From evaluation result it can be seen that the EPA and DHA of two groups of milk powder samples after 40 DEG C keep the temperature accelerated test
The situation of change of the flavor sense organ of loss late and milk powder.With the loss late of the EPA and DHA of the milk powder of the production of embodiment 1,2,3
Respectively 6.45% and 4.14%, the loss late of the EPA and DHA of the milk powder produced with comparative example 1,2,3 are respectively 18.3% and
16.2%.So with the milk powder that the method for preparing milk of the present invention produces than the EPA of milk powder that is produced with customary preparation methods and
The stability higher of DHA.So the product quality of milk powder of the present invention will be got well compared with prior art.
Conclusion：With the milk powder of EPA containing fish oil and algae oil DHA made from the preparation method of the present invention, improvement production can be reached
Product mouthfeel and the purpose for improving EPA and DHA stability.
Claims (10)
1. a kind of method for preparing milk containing fish oil and algae oil, comprises the following steps：
(1) raw milk is pre-processed, cow's milk dispensing be added in water dissolve it is complete, by pretreated cow's milk with it is dissolved
Cow's milk dispensing is uniformly mixed, and obtains the mixed solution containing milk elements；
(2) by mixed solution homogeneous, sterilization, concentration, concentrated milk is obtained；
(3) first casein sodium 0.05%~0.2%, fish oil 0.1%~0.6%, algae oil 0.1%~0.5% are added to the water
Stirring, add inulin 5%~13%, lactose 1%~4%, beta-cyclodextrin 0.5%~1.0%, vitamin E 0.3%~
0.6% and vitamin C 0.05%~0.1% stirring emulsion is made, emulsified, homogeneous, sterilization, obtain solid concentration matter
The emulsion that percentage is 25%~35% is measured, above-mentioned percentage accounts for the mass percent of milk powder for each ingredient；
(4) emulsion in step (3) is added in the concentrated milk in step (2), is uniformly mixed, is spray-dried to get this
Milk powder.
2. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that cow's milk in step (1)
Dispensing includes the one or more in whole-fat milk powder, skimmed milk powder, desalted whey powder or concentrated whey protein powder.
3. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that described in step (1)
Dissolving temperature be 40~45 DEG C.
4. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that mixing in step (1)
The solid concentration mass percent of solution is 14%~16%.
5. person in middle and old age's method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that step (2)
The temperature of middle homogeneous is 55~60 DEG C, and the pressure of homogeneous is 18~20MPa, and sterilization temperature is 92~95 DEG C, sterilizing time 20
~25 seconds.
6. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that concentration in step (2)
Using triple effect vacuum falling film concentration method, concentrated milk is concentrated into solid concentration mass percent as 46%~50%.
7. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that step (3) is stirred twice
The temperature mixed is 60~65 DEG C, and the time is 10~20 minutes.
8. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that step (3) homogeneous temperature
It spends for 60~65 DEG C, homogenization pressure is 20~24MPa；Sterilization temperature is 90~92 DEG C, and sterilizing time is 20~25 seconds.
9. the method for preparing milk containing fish oil and algae oil according to claim 1, which is characterized in that will be dense in step (4)
Contracting milk temperature is increased to 70~73 DEG C and is spray-dried again；Spray drying EAT is 180~185 DEG C, temperature of outgoing air is
78~80 DEG C, pressure be 220~240bar.
10. existed using milk powder, feature made of the method for preparing milk containing fish oil and algae oil described in 1-9 any claims
In the milk powder includes 80%~90% milk elements, 5%~13% inulin, 1%~4% lactose, 0.5%~1.0% β-ring
Dextrin, 0.1%~0.6% fish oil, 0.1%~0.5% algae oil, 0.3%~0.6% vitamin E, 0.05%~0.1% dimension life
Plain C, 0.05%~0.2% casein sodium, above-mentioned percentage account for the mass percent of milk powder for each ingredient.
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