CN102599240A - Method for processing fresh solid pasteurized milk - Google Patents
Method for processing fresh solid pasteurized milk Download PDFInfo
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- CN102599240A CN102599240A CN2012100594782A CN201210059478A CN102599240A CN 102599240 A CN102599240 A CN 102599240A CN 2012100594782 A CN2012100594782 A CN 2012100594782A CN 201210059478 A CN201210059478 A CN 201210059478A CN 102599240 A CN102599240 A CN 102599240A
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Abstract
The invention discloses a method for processing fresh solid pasteurized milk, which initially employs dipping ultrarapid freezing technology to preservation of dairy products. According to the technical scheme, the method includes inspection and acceptance of raw milk, pretreatment, pasteurization, cooling, filling, quick-freezing, cold storage and thawing. By means of cold chain, nutrients of the raw milk can be reserved to the maximum extent. The fresh solid pasteurized milk processed by the method is fast in freezing, ice crystal generated is small, macromolecular substances in the raw milk cannot be spoiled, the milk thawed is non-layering, has no settlement and completely retains nutrients of liquid pasteurized milk, the shelf life is prolonged greatly, the defects that the pasteurized milk is short in shelf life, unsuitable for long-range transport and only available for sales in certain areas are overcome, and batch production and large-range sale of the pasteurized milk are advantaged. The method is applicable to other dairy products of cow milk, goat milk, buffalo milk and the like, and can fully meet the technical requirement of dairy products in GB19645-2010.
Description
Technical field
The present invention relates to a kind of processing method of dairy produce, specifically is a kind of processing method of utilizing liquid immersion type Superfreezing machine to produce fresh-keeping solid-state pasteurised milk, belongs to the milk products machining technology.
Technical background
Milk is rich in the multiple nutrients material of needed by human body, except protein, fat, lactose, vitamin, also contains a large amount of active materials and mineral matter, and especially abundant calcium ion is that nature vouchsafes that people are the most perfect, one of optimal wholefood.Rich nutrient substances also is prone to cause raised growth and the breeding of microorganism, thus must control the microorganism in the milk, to guarantee consumer's safety.At present, sterilization of milk technology commonly used both at home and abroad mainly is the heat kill bacterium, comprises ultra high temperature short time sterilization (UHT) and pasteurize, and the former is under 135～140 ℃ of conditions, handles 4～10s; The latter comprise bactericidal assay when low temperature is long (62～65 ℃, 30min) with the high temperature method (72～85 ℃, 10～15s).Two kinds of sterilization modes cut both ways, and UHT can all kill microorganism in the milk and gemma, reaches the requirement of commercial sterilization, and the shelf-life reached more than 12 months, but nutritional labeling in the milk and local flavor goods and materials also can be seriously damaged simultaneously; Pasteurize milk is through the low temperature long time treatment, and nutritive loss is few, can farthest keep the nutritional labeling of raw material milk, but the shelf-life is short, under 4 ℃ of conditions, only can preserve 3～6 days, also is difficult to satisfy the demands of consumers.So how to suppress the microbial reproduction in the dairy produce; Prolong the shelf-life of dairy produce; The nutritive value that can farthest keep former milk again; Be the technical barrier that the dairy produce industry research solves for a long time always, but also do not have a kind of desirable breeding that can suppress microorganism in the dairy produce at present, can farthest keep the dairy produce processing method of former milk nutritive value again.
Summary of the invention
The objective of the invention is to solve the existing technical barrier of present dairy produce industry, and disclose a kind of processing method of fresh-keeping solid-state pasteurised milk.
The objective of the invention is to realize through following technical scheme:
A. select the standard compliant fresh feed milk of organoleptic indicator, physical and chemical index and microbiological indicator;
B. raw material milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
Bactericidal assay carries out sterilization when c. adopting low temperature long,
C.1.1 sterilization temperature is 62～65 ℃,
C.1.2 sterilizing time 25～35min,
C.2 or adopt the high temperature method to carry out sterilization,
C.2.1 sterilization temperature is 72～85 ℃,
C.2.2 sterilizing time 10～15s;
D. pasteurize milk is cooled to 0～2 ℃ rapidly under aseptic condition, and is filled in the aseptic plastic bag of certain volume;
E. place freezing liquid to carry out quick-frozen packaged pasteurize milk,
E.1 chilled liquid temperature-30 ℃～-55 ℃,
E.1 quick-frozen time 5～10min,
Take out the fresh-keeping solid-state pasteurised milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
F. with the cold storage in-18 ℃ freezer of fresh-keeping solid-state pasteurised milk, the basic no change of nutriment;
G. through cold chain, fresh-keeping solid-state pasteurised milk can conveniently be transported to the supermarket, various places and sell;
H. behind air thawing or the microwave thawing, heat promptly drinkable.
The present invention initiative with liquid immersion type Superfreezing technical application in dairy products fresh-keeping, adopt the fresh-keeping solid-state pasteurised milk of this processes, utilize existing cold chain, can farthest keep the nutritional labeling of raw material milk, the shelf-life was above 6 months.This method freezing speed is fast, and it is little to generate ice crystal, can not destroy the macromolecular substances in the former milk, after dairy produce thaws; No layering does not have deposition, has kept the nutritional labeling of liquid pasteurised milk fully; And greatly prolonged the shelf-life, it is short to have overcome the pasteurised milk shelf-life, is not suitable for long-distance transport; The defective that can only in certain zone, sell for the production in enormous quantities of pasteurised milk, sale on a large scale provide advantage, the invention is not restricted to milk; Also comprise goat milk, other dairy products such as buffalo milk can reach the dairy produce specification requirement of GB19645-2010 fully.
The practical implementation method:
Below in conjunction with embodiment the present invention is done and to describe in further detail:
Embodiment 1:
A. select the organoleptic indicator, physical and chemical index and microbiological indicator meet the fresh milk of GB;
B. milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
Bactericidal assay carries out sterilization when c. adopting low temperature long,
C.1 sterilization temperature is 65 ℃,
C.2 sterilizing time 30min;
D. pasteurized milk is cooled to 1 ℃ rapidly under germ-free condition, and is filled to the aseptic anti-of 200ml and freezes in the polybag exhaust sealing;
E. place freezing liquid to carry out quick-frozen packaged pasteurized milk,
E.1 chilled liquid temperature-35 ℃,
E.1 quick-frozen time 8min,
Take out the fresh-keeping solid-state Pasteur's milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
F. with the cold storage in-18 ℃ freezer of fresh-keeping solid-state Pasteur's milk, the basic no change of nutriment;
G. through the cold chain transportation, fresh-keeping solid-state Pasteur's milk can be transported to the supermarket, various places and sell;
H. after thawing with 25 ℃ warm water, heat promptly drinkable.
Embodiment 2:
A. select the organoleptic indicator, physical and chemical index and microbiological indicator meet the fresh goat milk of GB;
B. goat milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
C. adopt the high temperature method to carry out sterilization,
C.1 sterilization temperature is 80 ℃,
C.2 sterilizing time 15s;
D. pasteurize goat milk is cooled to 2 ℃ rapidly under germ-free condition, and is filled to the aseptic anti-of 300ml and freezes in the polybag exhaust sealing;
E. place freezing liquid to carry out quick-frozen in packaged pasteurize goat milk,
E.1 chilled liquid temperature-40 ℃,
E.1 quick-frozen time 8min,
Take out the fresh-keeping solid-state Pasteur's goat milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
F. the cold storage in-18 ℃ freezer of fresh-keeping solid-state Pasteur's goat milk, the basic no change of nutriment;
G. through the cold chain transportation, fresh-keeping solid-state Pasteur's goat milk can be transported to the supermarket, various places and sell;
H. after the microwave thawing heating, promptly drinkable.
Claims (3)
1. the processing method of a fresh-keeping solid-state pasteurised milk is characterized in that realizing through following scheme:
A. select the standard compliant fresh feed milk of organoleptic indicator, physical and chemical index and microbiological indicator;
B. raw material milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
Bactericidal assay carries out sterilization when c. adopting low temperature long,
C.1.1 sterilization temperature is 62～65 ℃,
C.1.2 sterilizing time 25～35min,
C.2 or adopt the high temperature method to carry out sterilization,
C.2.1 sterilization temperature is 72～85 ℃,
C.2.2 sterilizing time 10～15s;
D. pasteurize milk is cooled to 0～2 ℃ rapidly under aseptic condition, and is filled in the aseptic plastic bag of certain volume;
E. place freezing liquid to carry out quick-frozen packaged pasteurize milk,
E.1 chilled liquid temperature-30 ℃～-55 ℃,
E.1 quick-frozen time 5～10min,
Take out the fresh-keeping solid-state pasteurised milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
F. with the cold storage in-18 ℃ freezer of fresh-keeping solid-state pasteurised milk, the basic no change of nutriment;
G. through cold chain, fresh-keeping solid-state pasteurised milk can conveniently be transported to the supermarket, various places and sell;
H. behind air thawing or the microwave thawing, heat promptly drinkable.
2. the processing method of a kind of fresh-keeping solid-state pasteurised milk according to claim 1 is characterized in that:
A. select the organoleptic indicator, physical and chemical index and microbiological indicator meet the fresh milk of GB;
B. milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
Bactericidal assay carries out sterilization when c. adopting low temperature long,
C.1 sterilization temperature is 65 ℃,
C.2 sterilizing time 30min;
D. pasteurized milk is cooled to 1 ℃ rapidly under germ-free condition, and is filled to the aseptic anti-of 200ml and freezes in the polybag exhaust sealing;
E. place freezing liquid to carry out quick-frozen packaged pasteurized milk,
E.1 chilled liquid temperature-35 ℃,
E.1 quick-frozen time 8min,
Take out the fresh-keeping solid-state Pasteur's milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
H. after thawing with 25 ℃ warm water, heat promptly drinkable.
3. the processing method of a kind of fresh-keeping solid-state pasteurised milk according to claim 1 is characterized in that:
A. select the organoleptic indicator, physical and chemical index and microbiological indicator meet the fresh goat milk of GB;
B. goat milk improves its quality and stability through technologies such as filtration, purification, standardization, homogeneous;
C. adopt the high temperature method to carry out sterilization,
C.1 sterilization temperature is 80 ℃,
C.2 sterilizing time 15s;
D. pasteurize goat milk is cooled to 2 ℃ rapidly under germ-free condition, and is filled to the aseptic anti-of 300ml and freezes in the polybag exhaust sealing;
E. place freezing liquid to carry out quick-frozen in packaged pasteurize goat milk,
E.1 chilled liquid temperature-40 ℃,
E.1 quick-frozen time 8min,
Take out the fresh-keeping solid-state Pasteur's goat milk that obtains having definite shape when e.3 central temperature reaches-18 ℃;
H. after the microwave thawing heating, promptly drinkable.
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| CN2012100594782A CN102599240A (en) | 2012-03-07 | 2012-03-07 | Method for processing fresh solid pasteurized milk |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105410175A (en) * | 2015-12-18 | 2016-03-23 | 南阳农业职业学院 | Preparation method of pasteurized milk |
| CN106387046A (en) * | 2016-09-18 | 2017-02-15 | 济南大学 | Fresh milk and hot water pasteurizer |
| CN106387045A (en) * | 2016-09-18 | 2017-02-15 | 济南大学 | Hot water pasteurization device of fresh milk and automatic control method thereof |
| CN107372820A (en) * | 2017-08-28 | 2017-11-24 | 纽鸿（大连）乳品科技股份有限公司 | Goat milk method for disinfection |
| CN107372819A (en) * | 2017-08-28 | 2017-11-24 | 纽鸿（大连）乳品科技股份有限公司 | Full-cream pasteurize goat milk and preparation method thereof |
| CN108013130A (en) * | 2018-01-08 | 2018-05-11 | 何树海 | A kind of processing technology for being used to keep new fresh milk nutritional ingredient |
| CN109463435A (en) * | 2018-07-19 | 2019-03-15 | 芳草地乳业集团公司 | A kind of dairy processing systems and method |
| CN111109358A (en) * | 2020-03-11 | 2020-05-08 | 山东仙农园蔬牧有限责任公司 | Processing method of iced fresh goat milk |
| CN112630106A (en) * | 2020-12-16 | 2021-04-09 | 陕西师范大学 | Method for evaluating frozen storage time of fresh goat milk based on stability quality |
| CN113955230A (en) * | 2021-09-30 | 2022-01-21 | 阿拉善左旗梦可草原牧业食品专业合作社 | Intelligent processing method and production line of camel fresh milk |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105410175A (en) * | 2015-12-18 | 2016-03-23 | 南阳农业职业学院 | Preparation method of pasteurized milk |
| CN106387046A (en) * | 2016-09-18 | 2017-02-15 | 济南大学 | Fresh milk and hot water pasteurizer |
| CN106387045A (en) * | 2016-09-18 | 2017-02-15 | 济南大学 | Hot water pasteurization device of fresh milk and automatic control method thereof |
| CN107372820B (en) * | 2017-08-28 | 2020-03-10 | 纽鸿（大连）乳品科技股份有限公司 | Goat milk sterilization method |
| CN107372820A (en) * | 2017-08-28 | 2017-11-24 | 纽鸿（大连）乳品科技股份有限公司 | Goat milk method for disinfection |
| CN107372819A (en) * | 2017-08-28 | 2017-11-24 | 纽鸿（大连）乳品科技股份有限公司 | Full-cream pasteurize goat milk and preparation method thereof |
| CN107372819B (en) * | 2017-08-28 | 2020-03-06 | 纽鸿（大连）乳品科技股份有限公司 | Full-fat pasteurized goat milk and preparation method thereof |
| CN108013130A (en) * | 2018-01-08 | 2018-05-11 | 何树海 | A kind of processing technology for being used to keep new fresh milk nutritional ingredient |
| CN109463435A (en) * | 2018-07-19 | 2019-03-15 | 芳草地乳业集团公司 | A kind of dairy processing systems and method |
| CN111109358A (en) * | 2020-03-11 | 2020-05-08 | 山东仙农园蔬牧有限责任公司 | Processing method of iced fresh goat milk |
| CN112630106A (en) * | 2020-12-16 | 2021-04-09 | 陕西师范大学 | Method for evaluating frozen storage time of fresh goat milk based on stability quality |
| CN112630106B (en) * | 2020-12-16 | 2023-12-22 | 陕西师范大学 | Method for evaluating fresh goat milk freezing storage time based on stability quality |
| CN113955230A (en) * | 2021-09-30 | 2022-01-21 | 阿拉善左旗梦可草原牧业食品专业合作社 | Intelligent processing method and production line of camel fresh milk |
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Application publication date: 20120725 |