CN1648003A - Packaging process for liquid milk - Google Patents
Packaging process for liquid milk Download PDFInfo
- Publication number
- CN1648003A CN1648003A CN 200510038288 CN200510038288A CN1648003A CN 1648003 A CN1648003 A CN 1648003A CN 200510038288 CN200510038288 CN 200510038288 CN 200510038288 A CN200510038288 A CN 200510038288A CN 1648003 A CN1648003 A CN 1648003A
- Authority
- CN
- China
- Prior art keywords
- milk
- gas
- liquid milk
- sterilization
- pasteurize
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Dairy Products (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The present invention discloses a liquid milk packing process and relates to the production of liquid milk, especially preservation technology. Fresh milk, reduced milk and other material milk after pre-treatment and pasteurization is filled into packing container for hermetically packing, and the packing container is filled with certain amount of bacteria-free CO2 and/or N2. The present invention has good packing form for convenient transportation, less investment in apparatus and relatively long preservation period of the product.
Description
Technical field
The present invention relates to the production of liquid milk, particularly its preservation technique.
Background technology
External fluid milk is mainly based on fresh-keeping pasteurised milk, this is main relevant with its perfect cold chain system and economic level, domestic in recent years liquid milk market growth is rapid, but on the shelf-life of product, it is the fresh-keeping breast in 3 days, be long UHT milk of shelf-life, unreasonable products structure.
Prolonging shelf life liquid milk (ESL) is a focus direction in dairy industry, and its shelf life is between pasteurization milk and sterile milk.
Owing to shelf life, nutritive value, composite factors such as product special flavour are considered therefore the prolongation shelf life of non-sterilising prods necessitates.At first this product is useful to the producer, and useful to wholesale dealer and retail point simultaneously, they need not transport every day, can display in several days, and the spoilage problems (not resembling pasteurized product) of product can not occur.Not can under aseptic condition (for the common canning means that adopts of UHT product) as fruit product simultaneously, realize easily, and cost of production is low.Ought provide the long shelf life product at last, and steady quality, the local flavor that has pasteurized product simultaneously, this product will be favored certainly, and the ESL product has satisfied the requirement of this respect.
Summary of the invention
The object of the invention is to provide for people the technology of the package of a kind of liquid milk of a kind of long shelf life or long fresh-keeping period.
The present invention is a raw material with fresh cow's milk, recombined milk, through pretreatment, employing pasteurize or super pasteurize, is characterized in that the liquid milk after the sterilization is filled in the packing container of sterilization or sterilization, and charges into aseptic CO
2Gas or N
2Gas or CO
2And N
2Behind the miscellaneous gas, sealed package.
Because the present invention charges into aseptic CO before sealed package
2Gas or N
2Gas or CO
2And N
2Miscellaneous gas has solved and vacuumizes packing in the past and be shaped poorly, is inconvenient to transport, and the defective that equipment has high input has also overcome the band air-packing, the defective that the product freshness date is too short.
The concentration of above-mentioned gas is: 5～500mMol/L.That is be 5～500mMol, at every liter of liquid milk fill gas bulk concentration.
The ratio of above-mentioned gas is: CO
2: N
2=10: 0～0: 10.Can be aseptic CO
2Gas, or aseptic N
2Gas, or aseptic CO
2And N
2Miscellaneous gas.
The leak free liquid milk is 2～8 ℃ of storages down.
Specific embodiment
Example one:
Based on the raw material milk of fresh cow's milk, milk powder, through behind the pretreatment, adopt pasteurize or super pasteurize, (pasteurize is under 72 ℃, and sterilizing time equals 15 seconds greatly; Or pasteurize is under 90 ℃, and sterilizing time was more than or equal to 5 seconds; Or super pasteurize is under 138 ℃, and sterilizing time was more than or equal to 2 seconds), the liquid milk after the sterilization is filled in the packing container of sterilization or sterilization, charge into aseptic CO at every liter of liquid milk
2And N
2Mix this and close gas, make mixed gas concentration reach 5mMol, fill complete, sealed package.Above-mentioned CO
2With N
2Volume ratio be 1: 10 to 10: 1.The liquid lacteal product of filling and sealing is under 2～8 ℃, and storage is also sold.
Example two:
With fresh cow's milk or recombined milk is raw material milk, through behind the pretreatment, adopts pasteurize or super pasteurize, and (pasteurize is under 72 ℃, and sterilizing time was more than or equal to 15 seconds; Or pasteurize is under 90 ℃, and sterilizing time was more than or equal to 5 seconds; Or super pasteurize is under 138 ℃, and sterilizing time was more than or equal to 2 seconds), the liquid milk after the sterilization is filled in the packing container of sterilization or sterilization, charge into aseptic CO at every liter of liquid milk
2Gas makes CO
2Gas concentration reaches 500mMol, fill complete, sealed package.The liquid lacteal product of filling and sealing is under 2～8 ℃, and storage is also sold.
Example three:
With fresh cow's milk or recombined milk is raw material milk, through behind the pretreatment, adopts pasteurize or super pasteurize, and (pasteurize is under 72 ℃, and sterilizing time was more than or equal to 15 seconds; Or pasteurize is under 90 ℃, and sterilizing time was more than or equal to 5 seconds; Or super pasteurize is under 138 ℃, and sterilizing time was more than or equal to 2 seconds), the liquid milk after the sterilization is filled in the packing container of sterilization or sterilization, charge into aseptic N at every liter of liquid milk
2Gas makes N
2Gas concentration reaches 300mMol, fill complete, sealed package.The liquid lacteal product of filling and sealing is under 2-8 ℃, and storage is also sold.
Claims (4)
1, a kind of technology of the package of liquid milk is a raw material milk with fresh cow's milk, recombined milk etc., through pretreatment, employing pasteurize or super pasteurize, it is characterized in that the liquid milk after the sterilization is filled in the packing container of sterilization or sterilization, and charges into aseptic CO
2Gas or N
2Gas or CO
2And N
2Behind the miscellaneous gas, sealed package.
2,, it is characterized in that the concentration of gas is: 5～500mMol/L according to the technology of the package of the described a kind of liquid milk of claim 1.
3,, it is characterized in that the ratio of gas is: CO according to the technology of the package of the described a kind of liquid milk of claim 1
2: N
2=10: 0～0: 10.
4,, it is characterized in that the leak free liquid milk is 2～8 ℃ of storages down according to the technology of the package of claim 1 or 2 or 3 described a kind of liquid milk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100382882A CN100344507C (en) | 2005-01-25 | 2005-01-25 | Packaging process for liquid milk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100382882A CN100344507C (en) | 2005-01-25 | 2005-01-25 | Packaging process for liquid milk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648003A true CN1648003A (en) | 2005-08-03 |
| CN100344507C CN100344507C (en) | 2007-10-24 |
Family
ID=34876258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100382882A Expired - Fee Related CN100344507C (en) | 2005-01-25 | 2005-01-25 | Packaging process for liquid milk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100344507C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960443A (en) * | 2012-11-21 | 2013-03-13 | 光明乳业股份有限公司 | Fresh liquid milk freshness protection method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4804552A (en) * | 1987-09-08 | 1989-02-14 | Dairy Research, Inc. | Carbonated liquid dairy product and method of production thereof |
| EP0386016A4 (en) * | 1987-09-21 | 1991-05-15 | Michael Aloysius Tracey | Carbonated milk |
| CN1130467A (en) * | 1995-03-07 | 1996-09-11 | 周泽如 | Preservation process for food |
| CN1079196C (en) * | 1996-06-14 | 2002-02-20 | 普莱克斯技术有限公司 | Method for preparing dairy products having increased |
| CN2562592Y (en) * | 2002-08-09 | 2003-07-30 | 何自有 | Nitrogen and carbon dioxide fresh-keeping device |
-
2005
- 2005-01-25 CN CNB2005100382882A patent/CN100344507C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102960443A (en) * | 2012-11-21 | 2013-03-13 | 光明乳业股份有限公司 | Fresh liquid milk freshness protection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100344507C (en) | 2007-10-24 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090306 Address after: No. 9, Tongzhou Road, Nantong Development Zone, Jiangsu, China Patentee after: Nantong Alchemy Biotech Development Co.,Ltd. Address before: No. 88, South University Road, Jiangsu, Yangzhou Patentee before: Yangzhou University |
|
| ASS | Succession or assignment of patent right |
Owner name: NANTONG AOKAI BIOTECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: YANGZHOU UNIV. Effective date: 20090306 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071024 Termination date: 20140125 |