CN106509096A - Preparation method of sterilized milk - Google Patents
Preparation method of sterilized milk Download PDFInfo
- Publication number
- CN106509096A CN106509096A CN201610854772.0A CN201610854772A CN106509096A CN 106509096 A CN106509096 A CN 106509096A CN 201610854772 A CN201610854772 A CN 201610854772A CN 106509096 A CN106509096 A CN 106509096A
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- CN
- China
- Prior art keywords
- milk
- steam
- preparation
- pressure
- temperature
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Classifications
-
- 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
- A23C1/00—Concentration, evaporation or drying
- A23C1/04—Concentration, evaporation or drying by spraying into a gas stream
-
- 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
- A23C1/00—Concentration, evaporation or drying
- A23C1/12—Concentration by evaporation
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Dairy Products (AREA)
Abstract
The present invention provides a preparation method of sterilized milk. The preparation method is as follows: raw milk in line with national food safety standards is subjected to impurity removing via a milk purifying machine and then the impurity removed milk is homogenized at 15-20 MPa; then the homogenized milk and a direct injection steam are subjected to mixed atomization: the high temperature atomization is used in the whole process, the raw milk is subjected to the nozzle atomization at a pressure of 50 MPa, then at the same time, the direct injection steam is pumped in, the steam pressure is 0.3-0.5 MPa, the steam temperature is 142.9 DEG C-158.1 DEG C, and the mixing time is 3-5 seconds; flash evaporation concentration: the process is conducted in a flash evaporation tank, a part of water of the materials is evaporated under negative pressure, and the temperature of the materials is lowered to be 70 DEG C or below within 5 seconds; and the materials are subjected to aseptic packaging to obtain the finished products. The preparation method of the sterilized milk retains most of the nutrients in the raw milk and microorganisms in the finished products meet the requirements of commercial sterilization.
Description
Technical field
The present invention relates to a kind of preparation method of sterilized milk, and in particular to the method for preparing sterilized milk using direct-injection steam.
Background technology
Liquid milk is, with Fresh Milk, milk powder etc. as raw material, through appropriate processed, to make and be available for consumer direct
The liquid commodity breast drunk.The species of liquid milk is much divided into：Pasteurization milk, fresh-keeping breast, ultra-high-temperature sterilized milk and guarantor
Hold formula sterilized milk etc..These liquid milk product all have to pass through the sterilization of different temperatures in process, and process for sterilizing is different
In directly resulting in product, microbiological indicator is also different, is directly connected to shelf life of products.If pursued the shelf-life simply, carry
High sterilising temp, increases sterilization time, and in causing product, nutrient substance is subject to high temperature, although and pasteurize can keep
Most of nutrient substance is not destroyed, but as some thermoduric bacterias are still survived in material, it is difficult to ensure that product long-time is protected
Deposit.
The content of the invention
Based on above weak point, the present invention provides a kind of preparation method of sterilized milk.
The object of the present invention is achieved like this：A kind of preparation method of sterilized milk, will meet national food safety standard
Lactogenesis go the removal of impurity through milk clarifier, then in 15-20MPa homogenizing；It is atomized with direct-injection steam again：This process is using high
Pressure atomization, by lactogenesis under 50MPa pressure, by nozzle atomization, is at the same time passed through direct-injection steam, and steam pressure is 0.3-
0.5MPa, 142.9 DEG C -158.1 DEG C of vapor (steam) temperature, immixture time are the 3-5 seconds；Flash concentration：This process is in flash tank
Carry out, material evaporates portion of water under suction function, and in 5 seconds, temperature of charge is down to less than 70 DEG C；Using aseptic packaging
Finished product can be become.
The present invention, to liquid milk instantaneous sterilization and then rapid cooling i.e., is ensure that to greatest extent using high temperature direct injection steam
In material, nutrient substance is not destroyed, and can all kill microorganism in material again, and the nutritive value for improving product extends product guarantor
The matter phase.The sterilized milk of Jing this technique preparations, remains the nutritional labeling in most of raw milk, and microorganism in finished product meets business
Aseptic requirement.
Specific embodiment
It is for a more detailed description to the present invention with reference to specific embodiment：
Embodiment 1：
The lactogenesis for meeting national food safety standard is gone the removal of impurity through milk clarifier by a kind of preparation method of sterilized milk,
Lactogenesis：GB 19301-2010 should be met《National food safety standard lactogenesis》Requirement；Then in 15-20MPa homogenizing；Again with
Direct-injection steam is atomized：This process adopts high-pressure atomization, by lactogenesis under 50MPa pressure, by nozzle atomization, at the same time
Direct-injection steam is passed through, steam pressure is 0.3MPa, and 158.1 DEG C of vapor (steam) temperature, immixture time are 5 seconds；Flash concentration：This mistake
Journey is carried out in flash tank, and material evaporates portion of water under suction function, and in 5 seconds, temperature of charge is down to less than 70 DEG C；
Finished product can be become using aseptic packaging.
Embodiment 2：
The lactogenesis for meeting national food safety standard is gone the removal of impurity through milk clarifier by a kind of preparation method of sterilized milk,
Lactogenesis：GB 19301-2010 should be met《National food safety standard lactogenesis》Requirement；Then in 15-20MPa homogenizing；Again with
Direct-injection steam is atomized：This process adopts high-pressure atomization, by lactogenesis under 50MPa pressure, by nozzle atomization, at the same time
Direct-injection steam is passed through, steam pressure is 0.5MPa, and 142.9 DEG C of vapor (steam) temperature, immixture time are 3 seconds；Flash concentration：This mistake
Journey is carried out in flash tank, and material evaporates portion of water under suction function, and in 5 seconds, temperature of charge is down to less than 70 DEG C；
Finished product can be become using aseptic packaging.
Claims (1)
1. the lactogenesis for meeting national food safety standard is gone the removal of impurity through milk clarifier, so by a kind of preparation method of sterilized milk
Afterwards in 15-20MPa homogenizing；Characterized in that, being atomized with direct-injection steam again：This process adopts high-pressure atomization, and lactogenesis is existed
Under 50MPa pressure, by nozzle atomization, direct-injection steam is at the same time passed through, steam pressure is 0.3-0.5MPa, vapor (steam) temperature
142.9 DEG C -158.1 DEG C, the immixture time is the 3-5 seconds；Flash concentration：This process is carried out in flash tank, and material is in negative pressure
The lower evaporation portion of water of effect, in 5 seconds, temperature of charge is down to less than 70 DEG C；Finished product can be become using aseptic packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854772.0A CN106509096A (en) | 2016-09-27 | 2016-09-27 | Preparation method of sterilized milk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610854772.0A CN106509096A (en) | 2016-09-27 | 2016-09-27 | Preparation method of sterilized milk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106509096A true CN106509096A (en) | 2017-03-22 |
Family
ID=58344499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610854772.0A Pending CN106509096A (en) | 2016-09-27 | 2016-09-27 | Preparation method of sterilized milk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106509096A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047365A1 (en) * | 1999-12-24 | 2001-07-05 | Schwarzenbach Roger | Sterile product and process for preparing the product |
| CN101313702A (en) * | 2008-07-09 | 2008-12-03 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for baby of 6 to 12 months ages and preparation method with ejection type direct disinfection |
| CN105166035A (en) * | 2014-05-28 | 2015-12-23 | Dmk德意志牛奶股份有限公司 | Process For Production Of Low Microbial Count Milk Products |
-
2016
- 2016-09-27 CN CN201610854772.0A patent/CN106509096A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001047365A1 (en) * | 1999-12-24 | 2001-07-05 | Schwarzenbach Roger | Sterile product and process for preparing the product |
| CN101313702A (en) * | 2008-07-09 | 2008-12-03 | 内蒙古蒙牛乳业（集团）股份有限公司 | Liquid milk for baby of 6 to 12 months ages and preparation method with ejection type direct disinfection |
| CN105166035A (en) * | 2014-05-28 | 2015-12-23 | Dmk德意志牛奶股份有限公司 | Process For Production Of Low Microbial Count Milk Products |
Non-Patent Citations (1)
| Title |
|---|
| 申晓琳等: "《乳品加工技术》", 31 August 2015, 中国轻工业出版社 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
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| RJ01 | Rejection of invention patent application after publication |