CN112352837A - Modified milk containing unsaturated fatty acid and preparation method thereof - Google Patents
Modified milk containing unsaturated fatty acid and preparation method thereof Download PDFInfo
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- CN112352837A CN112352837A CN202011238672.8A CN202011238672A CN112352837A CN 112352837 A CN112352837 A CN 112352837A CN 202011238672 A CN202011238672 A CN 202011238672A CN 112352837 A CN112352837 A CN 112352837A
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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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- 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
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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
- A23C9/154—Milk preparations; Milk powder or milk powder preparations containing additives containing thickening substances, eggs or cereal preparations; Milk gels
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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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Abstract
The invention discloses a modified milk containing unsaturated fatty acid and a preparation method thereof, wherein the modified milk comprises the following raw materials in percentage by mass: 80-95% of raw milk, 0.1-0.3% of fish oil, 0.05-0.1% of DHA algae oil, 0.1-0.2% of emulsion stabilizer, 0.01-0.05% of antioxidant, 0.01-0.1% of compound nutrient, 0.02-0.1% of edible essence and water for supplementing to 100%. The preparation method comprises the following steps: heating 2/3 raw milk, adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient, stirring under heat preservation to obtain mixed solution A; cooling the mixed solution A to below 10 ℃, and placing the mixed solution A in a batching cylinder; adding edible essence and the rest 1/3 raw milk into a mixing tank, and stirring for 10-15min to obtain mixed milk B; homogenizing the ingredient milk B to obtain a mixed solution C; and sterilizing, cooling and filling the mixed solution C to obtain the finished product. The modified milk of the invention is rich in DHA and EPA and has good stability.
Description
Technical Field
The invention belongs to the technical field of dairy products, and particularly relates to modified milk containing high-content DHA and EPA and a preparation method thereof.
Background
Polyunsaturated fatty acids generally comprise both the omega-3 and omega-6 series. Both docosapentaenoic acid (DHA) and docosahexaenoic acid (EPA) belong to omega-3 unsaturated fatty acids, which are two unsaturated fatty acids most important to the human body. Studies have shown that the human body cannot synthesize DHA and EPA by itself, but only by food. A plurality of random meta-analysis studies show that the intake of unsaturated fatty acids such as DHA and EPA can obviously reduce the incidence rate of cardiovascular diseases such as heart disease of people. Meanwhile, DHA in algae oil and fish oil also contributes to the development of brain and retina, and countries such as European Union recommend that the daily intake of DHA and EPA for adults is not less than 250 mg. At present, DHA algae oil and fish oil are regarded as new resource food by China, and the daily consumption of the DHA algae oil is less than or equal to 300mg (calculated by pure DHA) according to the stipulation; the daily consumption of fish oil is less than or equal to 3 g.
Because most areas of China are inland and the DHA and EPA contents in the diet are generally low, the intake level of the unsaturated fatty acid of the whole population of China is in a low level in the global scope. It is critical to provide consumers with the convenience of obtaining DHA and EPA foods that meet their daily needs. However, DHA algal and fish oils are highly susceptible to oxidation reactions during production and storage due to their high degree of unsaturation, and thus create undesirable flavors, especially high oil loading liquid dairy products, which are more challenging. How to increase the DHA and EPA contents in milk and reduce the oxidation reaction and the generation of bad flavor becomes a problem to be solved. The prior art does not lack products added with DHA algae oil and fish oil, but the existing products generally have lower addition of DHA algae oil and fish oil, and have obvious bad flavor after the shelf life. Meanwhile, the product has poor stability and is easy to generate the phenomena of layering and the like.
Disclosure of Invention
The invention provides a modified milk containing unsaturated fatty acid and a preparation method thereof, aiming at solving the technical problems of low DHA and EPA contents and poor stability in the existing diet.
In order to achieve the purpose, the technical scheme of the invention is as follows:
on one hand, the invention provides a modified milk containing unsaturated fatty acid, which comprises the following raw materials in percentage by mass: 80-95% of raw milk, 0.1-0.3% of fish oil, 0.05-0.1% of DHA algae oil, 0.1-0.2% of emulsion stabilizer, 0.01-0.05% of antioxidant, 0.01-0.1% of compound nutrient, 0.02-0.1% of edible essence and water for supplementing to 100%.
Furthermore, the raw materials of the DHA algae oil and the fish oil are high-loading oil;
DHA algae oil and fish oil need to be deodorized in the processing process, and the fish oil needs to be embedded in microcapsules.
Furthermore, the DHA content in the DHA algae oil is more than or equal to 40%, and the DHA and EPA contents in the fish oil are more than or equal to 14.5%.
Further, the emulsion stabilizer is composed of mono-diglycerol fatty acid ester, carrageenan and phospholipid.
Further, the compound nutrient is composed of one or more of vitamin A, vitamin C, vitamin D, sodium iron ethylenediamine tetraacetate, milk mineral salt and zinc gluconate.
Further, the antioxidant is vitamin E.
On the other hand, the invention also provides a preparation method of the modified milk, which is characterized by comprising the following steps:
(1) heating 2/3 raw milk, adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient, stirring under heat preservation to obtain mixed solution A;
(2) cooling the mixed solution A obtained in the step (1) to below 10 ℃, and placing the mixed solution A in a proportioning cylinder;
(3) and (3) standardization: adding edible essence and the rest 1/3 raw milk into a mixing tank, and stirring for 10-15min to obtain mixed milk B;
(4) homogenizing the ingredient milk B obtained in the step (3) to obtain a mixed liquid C;
(5) and (3) sterilization: and (4) sterilizing, cooling and filling the mixed liquid C in the step (4) to obtain the product.
Further, in the step (1), the heating temperature is 60-75 ℃, and the heat preservation and stirring time is 10-15 min.
Further, the homogenizing temperature in the step (4) is 60-75 ℃, and the homogenizing pressure is 18-20 MPa.
Further, the sterilization temperature in the step (5) is 85-150 ℃, and the sterilization time is 0.1-15 s; cooled to 10 ℃.
The positive progress effects of the invention are as follows: the modified milk containing high-content unsaturated fatty acid is rich in DHA and EPA beneficial to brain and cardiovascular health, the content of the unsaturated fatty acid in the milk is obviously improved by screening raw materials, designing a formula and controlling process conditions on the basis of traditional related products, and the daily intake requirement of consumers on the unsaturated fatty acid can be met by singly packaging 250ml of milk.
The method successfully solves the problems that unsaturated fatty acid in the milk is easy to oxidize under the condition of high oil loading, products are layered in the shelf life, and bad flavor modification and covering are generated due to the oxidation of DHA algae oil and fish oil in the processing and storage processes. The healthy dairy product with high unit unsaturated fatty acid content, stable product, good flavor and clean label can be obtained by the preparation method.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the technical solution of the present invention will be further illustrated with reference to the following specific embodiments:
the invention aims to provide the modified milk containing high-content unsaturated fatty acid, which has stable product state, effectively controls the oxidation reaction of DHA and EPA in the product, has good flavor in the shelf life and has clean labels.
In order to achieve the purpose, one of the technical schemes provided by the invention is as follows:
the invention provides a modified milk containing unsaturated fatty acid. The modified milk is prepared from the following raw materials in percentage by weight: 80-95% of raw milk, 0.1-0.3% of fish oil, 0.05-0.1% of DHA algae oil, 0.1-0.2% of emulsion stabilizer, 0.01-0.05% of antioxidant, 0.01-0.1% of compound nutrient and 0.02-0.1% of edible essence, and water for supplementing to 100%.
In order to increase the content of DHA and EPA in the prepared milk, the DHA algae oil and the fish oil are selected from high oil-carrying raw materials.
Specifically, the DHA content of the DHA algae oil is more than or equal to 40%, and the DHA and EPA contents in the fish oil are more than or equal to 14.5%. Meanwhile, DHA algae oil and fish oil need to be deodorized in the processing process, and the fish oil needs to be subjected to microcapsule embedding treatment.
In order to reduce the oxidation of unsaturated fatty acids, antioxidants are added to milk.
Specifically, the antioxidant comprises vitamin E. Vitamin E can inhibit the progress of oxidation reactions by reducing free radicals.
The fish oil and the DHA algae oil both belong to raw materials with high fat content, and the fish oil and the DHA algae oil with high oil loading are added into milk, so that the layering phenomenon is particularly easy to occur, and an emulsification stabilizer is required to be added in the processing process, and the aggregation and floating speed of fat is slowed down through the processing technologies of emulsification, homogenization and the like.
Specifically, the emulsion stabilizer comprises mono-diglycerol fatty acid ester, carrageenan and phospholipid. The mono-diglycerol fatty acid ester and the phospholipid are used as common emulsifiers, so that the fat globules can be uniformly dispersed in a milk system, and the aggregation can be reduced. The carrageenan can increase the viscosity of the milk system, improve the mouthfeel and simultaneously ensure that the system is more stable.
In order to increase the nutritional value of the product, various vitamins and minerals are also added. Specifically, the compound nutrient is composed of one or more of vitamin A, vitamin C, vitamin D, sodium ferric ethylenediamine tetraacetate, milk mineral salt and zinc gluconate, and accords with the relevant regulations of the use of the food nutrition enhancer.
In order to endow the product with good flavor and cover up the bad flavor possibly brought by DHA algae oil and fish oil, a small amount of edible essence is also added. The flavourant may be derived from a natural product.
The second technical scheme provided by the invention is as follows:
the invention also provides a preparation method of the modified milk containing the unsaturated fatty acid, which comprises the following steps:
(1) taking 2/3 raw milk qualified by inspection, and heating to 60-75 ℃. Adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient through a water-powder mixer, and stirring for 10-15min under heat preservation;
preferably, the emulsion stabilizer and the compound nutrient are added after being premixed, so that the loss of the nutrient is reduced;
(2) cooling the material obtained after mixing in the step (1) to below 10 ℃, and placing the material in a proportioning cylinder;
(3) and (3) standardization: adding the rest 1/3 raw milk and essence into a mixing tank, and stirring for 10-15min to obtain mixed milk;
(4) and (4) heating the blended milk obtained in the step (3) to 60-75 ℃, and then homogenizing under the homogenizing pressure of 18-20 MPa. Single homogenization is adopted to reduce the acceleration of the oxidation of unsaturated fatty acid by homogenization;
(5) and (3) sterilization: heating and sterilizing the homogenized material liquid at 85-150 deg.C for 0.1-15 s;
preferably, the ultra-high temperature sterilization adopts steam immersion sterilization to replace the traditional pipeline sterilization mode;
(6) cooling the sterilized milk to 10 ℃, and placing the milk in an aseptic tank for storage and filling;
(7) filling: selecting a packaging material with excellent oxygen and light resistance. Preferably high performance composite carton packaging or HDPE packaging containing a barrier agent;
preferably, degassing treatment is carried out during filling, or nitrogen protection is carried out.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiment of the invention.
The positive progress effects of the invention are as follows:
the modified milk containing high-content unsaturated fatty acid is rich in DHA and EPA beneficial to brain and cardiovascular health, the content of the unsaturated fatty acid in the milk is obviously improved by screening raw materials, designing a formula and controlling process conditions on the basis of traditional related products, and the daily intake requirement of consumers on the unsaturated fatty acid can be met by singly packaging 250ml of milk. The invention successfully solves the problems that unsaturated fatty acid in milk is easy to oxidize under the condition of high oil loading, products are layered in shelf life, and bad flavor modification and covering are generated due to oxidation of DHA algae oil and fish oil in the processing and storage processes. The healthy dairy product with high unit unsaturated fatty acid content, stable product, good flavor and clean label can be obtained by the preparation method.
On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention. On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention. On the basis of the common knowledge in the field, the preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Interpretation of professional terms:
(1) DHA: docosapentaenoic acid;
(2) EPA: docosahexaenoic acid.
Example 1
The embodiment of the invention provides a modified milk containing unsaturated fatty acid and a preparation method thereof. The composite material comprises the following raw materials in percentage by mass: 80% of raw milk, 0.1% of fish oil, 0.05% of DHA algae oil, 0.1% of emulsion stabilizer, 0.01% of antioxidant, 0.01% of compound nutrient and 0.02% of edible essence, and water for supplementing to 100%.
The fish oil and the DHA algae oil both belong to high oil-carrying types, the DHA and EPA contents in the fish oil are more than or equal to 14.5%, and the DHA content in the DHA algae oil is more than or equal to 40%.
The emulsion stabilizer is as follows: mono-and diglycerol fatty acid esters: carrageenin: phospholipid 2:1: 2.
The antioxidant is vitamin E.
The compound nutrient consists of zinc gluconate and sodium ferric ethylenediamine tetraacetate.
The preparation method of the modified milk comprises the following steps:
(1) taking 2/3 raw milk qualified by inspection, and heating to 60 ℃. Adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient through a water-powder mixer, and stirring for 15min under heat preservation;
preferably, the emulsion stabilizer and the compound nutrient are added after being premixed, so that the loss of the nutrient is reduced;
(2) cooling the material obtained after mixing in the step (1) to below 10 ℃, and placing the material in a proportioning cylinder;
(3) and (3) standardization: adding the rest 1/3 raw milk and essence into a mixing tank, and stirring for 15min to obtain mixed milk;
(4) heating the blended milk obtained in the step (3) to 60 ℃, and then homogenizing under the homogenizing pressure of 18 MPa;
(5) and (3) sterilization: heating and sterilizing the homogenized feed liquid, wherein the sterilization temperature is 85 ℃, and the sterilization time is 15 s;
(6) cooling the sterilized milk to 10 ℃, and placing the milk in an aseptic tank for storage and filling;
(7) filling: selecting a packaging material with excellent oxygen and light resistance, and filling under the protection of nitrogen.
Example 2
The embodiment of the invention provides a modified milk containing unsaturated fatty acid and a preparation method thereof. The composite material comprises the following raw materials in percentage by mass: 95% of raw milk, 0.3% of fish oil, 0.1% of DHA algae oil, 0.2% of emulsion stabilizer, 0.01% of antioxidant, 0.1% of compound nutrient, 0.1% of edible essence and water for supplementing to 100%.
The fish oil and the DHA algae oil both belong to high oil-carrying types, the DHA and EPA contents in the fish oil are more than or equal to 14.5%, and the DHA content in the DHA algae oil is more than or equal to 40%.
The emulsion stabilizer is as follows: mono-and diglycerol fatty acid esters: carrageenin: phospholipid 2:2: 1.
The antioxidant is vitamin E.
The compound nutrient comprises vitamin A, vitamin D, milk mineral salt and vitamin C.
The preparation method of the modified milk comprises the following steps:
(1) taking 2/3 raw milk qualified by inspection, and heating to 75 ℃. Adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient through a water-powder mixer, and stirring for 10min under heat preservation;
preferably, the emulsion stabilizer and the compound nutrient are added after being premixed, so that the loss of the nutrient is reduced;
(2) cooling the material obtained after mixing in the step (1) to below 10 ℃, and placing the material in a proportioning cylinder;
(3) and (3) standardization: adding the rest 1/3 raw milk and essence into a mixing tank, and stirring for 15min to obtain mixed milk;
(4) heating the blended milk obtained in the step (3) to 75 ℃, and then homogenizing under the homogenizing pressure of 18 MPa;
(5) and (3) sterilization: performing submerged sterilization by adopting steam, wherein the sterilization temperature is 150 ℃, and the sterilization time is 0.1 s;
(6) cooling the sterilized milk to 25 ℃, and placing the milk in an aseptic tank for storage and filling;
(7) filling: selecting a composite sterile paper box with excellent oxygen and light resistance for packaging, and filling under the protection of nitrogen.
Example 3
The embodiment of the invention provides a modified milk containing unsaturated fatty acid and a preparation method thereof. The composite material comprises the following raw materials in percentage by mass: 90% of raw milk, 0.2% of fish oil, 0.15% of DHA algae oil, 0.15% of emulsion stabilizer, 0.05% of antioxidant, 0.1% of compound nutrient, 0.2% of edible essence and water for supplementing to 100%.
The fish oil and the DHA algae oil both belong to high oil-carrying types, the DHA and EPA contents in the fish oil are more than or equal to 14.5%, and the DHA content in the DHA algae oil is more than or equal to 40%.
The emulsion stabilizer is prepared from mono-diglycerol fatty acid ester: carrageenin: phospholipid 1:2: 2.
The antioxidant is vitamin E.
The compound nutrient consists of vitamin A, vitamin D, sodium iron ethylenediaminetetraacetate and vitamin C.
The preparation method of the modified milk comprises the following steps:
(1) taking 2/3 raw milk qualified by inspection, and heating to 70 ℃. Adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient through a water-powder mixer, and stirring for 10min under heat preservation;
preferably, the emulsion stabilizer and the compound nutrient are added after being premixed, so that the loss of the nutrient is reduced;
(2) cooling the material obtained after mixing in the step (1) to below 10 ℃, and placing the material in a proportioning cylinder;
(3) and (3) standardization: adding the rest 1/3 raw milk and essence into a mixing tank, and stirring for 15min to obtain mixed milk;
(4) heating the blended milk obtained in the step (3) to 70 ℃, and then homogenizing under the homogenizing pressure of 18 MPa;
(5) and (3) sterilization: performing submerged sterilization by adopting steam, wherein the sterilization temperature is 137 ℃, and the sterilization time is 4 s;
(6) cooling the sterilized milk to 25 ℃, and placing the milk in an aseptic tank for storage and filling;
(7) filling: selecting a composite sterile paper box with excellent oxygen and light resistance for packaging, and filling under the protection of nitrogen.
Comparative example 1
1. Raw materials: the DHA algae oil and fish oil were not added to the formulation, and the other ingredients were the same as in example 1.
2. The preparation method comprises the following steps: the same as in example 1.
Comparative example 2
The formulation and preparation method of comparative example 2 is substantially the same as example 1 except that:
1. the addition amount of DHA algae oil is 0.01%, and the addition amount of fish oil is 0.1%;
the DHA content in the DHA algae oil is more than or equal to 35 percent, the DHA and EPA contents in the fish oil are more than or equal to 9.5 percent, and the fish oil is not strictly embedded;
2. the emulsifier includes, mono-diglycerol fatty acid ester: sucrose fatty acid ester ═ 2: 1;
3. homogenizing: comparative example 2 adopts 2 times of homogenization, and the homogenization is respectively carried out during the material preparation and before the sterilization, the temperature of the homogenization condition is 70 ℃, and the homogenization pressure is 18-20 MPa.
Comparative example 3
Comparative example 3 was prepared identically to example 2, except that:
1. the addition amount of DHA algae oil is 0.05 percent, and the addition amount of fish oil is 0.1 percent;
2. emulsion stabilizers include, mono-and diglycerol fatty acid esters: 2, carrageenin: 1;
3. does not contain compound nutrients, antioxidants and edible essences.
Comparative example 4
Comparative example 4 was prepared identically to example 3, except that:
1. the emulsion stabilizer is prepared from sucrose fatty acid ester: phospholipid 2:1, preparing a composition;
2. the compound nutrient comprises milk mineral salt and sodium ferric ethylenediamine tetraacetate.
Effect example 1:
table 1 shows the product conditions of example 1 and comparative examples 1 and 2 in the shelf life
Table 2 shows the product condition of examples 2 and 3 and comparative examples 3 and 4 within 6 months of shelf life
As can be seen from tables 1 and 2, the modified milk containing unsaturated fatty acids provided in examples 1 to 3 of the present invention has not only a high content of DHA and EPA per one hundred milliliters but also a good flavor. In addition, the embodiments are relatively stable over the shelf life of the product.
The modified milk containing unsaturated fatty acid and the preparation method thereof provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The modified milk containing unsaturated fatty acid is characterized by comprising the following raw materials in percentage by mass: 80-95% of raw milk, 0.1-0.3% of fish oil, 0.05-0.1% of DHA algae oil, 0.1-0.2% of emulsion stabilizer, 0.01-0.05% of antioxidant, 0.01-0.1% of compound nutrient, 0.02-0.1% of edible essence and water for supplementing to 100%.
2. The modified milk containing unsaturated fatty acids according to claim 1, wherein the raw materials of DHA algal oil and fish oil are both high-loading oil;
DHA algae oil and fish oil need to be deodorized in the processing process, and the fish oil needs to be embedded in microcapsules.
3. The modified milk containing unsaturated fatty acids according to claim 1, wherein the DHA algae oil contains DHA at a content of 40% or more, and the fish oil contains DHA and EPA at a content of 14.5% or more.
4. The modified milk containing unsaturated fatty acid according to claim 1, wherein the emulsion stabilizer is composed of a mono-or diglycerol fatty acid ester, carrageenan and a phospholipid.
5. The modified milk containing unsaturated fatty acids according to claim 1, wherein said complex nutrients are composed of one or more of vitamin a, vitamin C, vitamin D, sodium iron ethylenediaminetetraacetic acid, milk mineral salts, and zinc gluconate.
6. The modified milk containing unsaturated fatty acids according to claim 1, wherein said antioxidant is vitamin E.
7. A method of preparing the modified milk of any one of claims 1 to 6, comprising the steps of:
(1) heating 2/3 raw milk, adding emulsion stabilizer, DHA algae oil, fish oil and compound nutrient, stirring under heat preservation to obtain mixed solution A;
(2) cooling the mixed solution A obtained in the step (1) to below 10 ℃, and placing the mixed solution A in a proportioning cylinder;
(3) and (3) standardization: adding edible essence and the rest 1/3 raw milk into a mixing tank, and stirring for 10-15min to obtain mixed milk B;
(4) homogenizing the ingredient milk B obtained in the step (3) to obtain a mixed liquid C;
(5) and (3) sterilization: and (4) sterilizing, cooling and filling the mixed liquid C in the step (4) to obtain the product.
8. The preparation method of the modified milk according to claim 7, wherein the heating temperature in the step (1) is 60-75 ℃, and the stirring time is 10-15 min.
9. The method of claim 7, wherein the homogenization temperature in step (4) is 60-75 ℃ and the homogenization pressure is 18-20 MPa.
10. The method for preparing recombined milk according to claim 7, wherein the sterilization temperature in the step (5) is 85-150 ℃ and the sterilization time is 0.1-15 s; cooled to 10 ℃.
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| CN114208889A (en) * | 2021-12-29 | 2022-03-22 | 嘉必优生物技术（武汉）股份有限公司 | UHT milk and preparation method thereof |
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| CN102144669A (en) * | 2011-04-14 | 2011-08-10 | 内蒙古蒙牛乳业（集团）股份有限公司 | DHASCO (docosahexaenoic acid single cell oil)-contained modulated milk and production method thereof |
| CN103749699A (en) * | 2014-01-26 | 2014-04-30 | 光明乳业股份有限公司 | Cheese liquid milk and preparation method thereof |
| CN105265580A (en) * | 2014-07-10 | 2016-01-27 | 内蒙古伊利实业集团股份有限公司 | Organic children milk and preparation method thereof |
| CN105394185A (en) * | 2015-12-03 | 2016-03-16 | 光明乳业股份有限公司 | Mango milk and preparation method thereof |
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| CN108094550A (en) * | 2017-12-19 | 2018-06-01 | 光明乳业股份有限公司 | A kind of milk powder containing fish oil and algae oil and preparation method thereof |
| CN107950663A (en) * | 2018-01-11 | 2018-04-24 | 内蒙古蒙牛乳业（集团）股份有限公司 | A kind of intelligent developing type nutritional supplementation milk for children and preparation method thereof |
| CN111869746A (en) * | 2020-08-12 | 2020-11-03 | 上海文辉食品工业有限公司 | Preparation method for concocting light condensed milk |
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| CN114208889A (en) * | 2021-12-29 | 2022-03-22 | 嘉必优生物技术（武汉）股份有限公司 | UHT milk and preparation method thereof |
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