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Liquid dairy product and preparation method

A dairy product and liquid technology, applied in the field of dairy products, can solve problems such as poor stability, and achieve the effect of excellent stability and uniform dairy products

Pending Publication Date: 2022-04-05
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem of poor stability of long shelf life of normal temperature milk in the prior art, and then provide a liquid dairy product and a preparation method, the prepared liquid dairy product has a long shelf life and excellent stability

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  • Liquid dairy product and preparation method

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Effect test

Embodiment 1

[0053] The present embodiment provides a kind of liquid dairy product preparation method, comprises the following steps:

[0054]1) Raw milk pretreatment: use raw milk as raw milk, filter it through a 50-mesh double filter to remove larger impurities or foreign matter, then preheat to 45°C, and use a milk cleaner to remove impurities by centrifugation (speed 4000rpm , 20 tons / h), remove most of the impurities and somatic cells, etc.

[0055] 2) Sterilization by centrifugal: pass the decontaminated raw milk through a centrifugal sterilizer with a rotation speed of 4000rpm, a time of 20 tons / h, and a temperature of 45°C to remove most of the spores and some bacteria.

[0056] 3) Fat standardization: standardize the fat of raw milk after sterilization, the speed of the centrifugal separation is 6000rpm, the temperature is 50°C, the time is 20 tons / h, and the fat is backfilled online as needed.

[0057] 4) Homogenization: The standardized raw milk is homogenized, the homogenizati...

Embodiment 2

[0067] The present embodiment provides a kind of liquid dairy product preparation method, comprises the following steps:

[0068] 1) Raw milk pretreatment: use raw milk as raw milk, filter it through a 60-mesh double filter to remove larger impurities or foreign matter, then preheat to 65°C, and use a milk cleaner to remove impurities by centrifugation (speed 6000rpm , 15 tons / h), remove most impurities and somatic cells, etc.

[0069] 2) Centrifugal sterilization: the raw milk after cleaning is passed through a centrifuge at a speed of 6000 rpm, 15 tons / h, and a temperature of 65° C. to remove most of the spores and some bacteria.

[0070] 3) Fat standardization: standardize the fat of raw milk after sterilization, the speed of the centrifugal separation is 6500rpm, the temperature is 55°C, 15 tons / h, and the fat is backfilled online as needed.

[0071] 4) Homogenization: Standardized milk is homogenized at temperature: 65°C, total pressure 300bar, secondary pressure 50bar, ...

Embodiment 3

[0082] The present embodiment provides a kind of liquid dairy product preparation method, comprises the following steps:

[0083] 1) Raw milk pretreatment: use raw milk as raw milk, filter it through a 60-mesh double filter to remove larger impurities or foreign matter, then preheat to 50°C, and use a milk cleaner to remove impurities by centrifugation (speed 5000rpm , 18 tons / h), remove most impurities and somatic cells, etc.

[0084] 2) Centrifugal degerming: pass the decontaminated raw milk through a centrifugal degerming machine at a speed of 5500 rpm, a temperature of 50° C., and 20 tons / h to remove most of the spores and some bacteria.

[0085] 3) Fat standardization: standardize the fat of the sterilized raw milk, the centrifugal separation speed is 6500rpm, the temperature is 50°C, 20 tons / h, and the fat is backfilled online as needed.

[0086] 4) Homogenization: Standardized milk is homogenized at temperature: 75°C, total pressure 320bar, secondary pressure 60bar, to...

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Abstract

According to the liquid dairy product and the preparation method provided by the invention, every 100g of the liquid dairy product comprises the following components: 5.0-8.0 g of protein; fat: 3.5 to 5.1 g; the mass ratio of fat to casein is (2: 2)-(2: 2.5); the particle size of the fat globules is less than 0.25 mu m; the content of lactoferrin is greater than or equal to 20mg / L; the lactoglobulin content is greater than or equal to 1500mg / L; the content of immune globulin is more than or equal to 10mg / L; the liquid dairy product has excellent stability in a long shelf life at normal temperature, and is free of protein precipitation and fat floating. According to the preparation method of the liquid dairy product, membrane ultrafiltration concentration of 5000-10000 Daltons and steam direct sterilization are adopted, a protein stabilizing tube is used or not used, the temperature is 76-95 DEG C, the time is 30-300 seconds, the condition of steam direct sterilization is 140-157 DEG C, the time is 0.09-6 seconds, and the dairy product subjected to ultrafiltration concentration is prepared.

Description

technical field [0001] The invention relates to the technical field of dairy products, in particular to a liquid dairy product and a preparation method. Background technique [0002] At present, the main processing method of high-end milk at room temperature in China is falling film or RO film, which is sterilized by tubular UHT. Domestic room temperature milk processing technology lags behind and cannot meet the market's demand for high-end and high-quality dairy products. Compared with foreign diversified products, its development is limited, which has led to an increase in the import of foreign liquid milk products into the Chinese market year by year, intensifying competition. At the same time, the above process technologies are relatively popular in China, the competition of the prepared products in the domestic market is fierce, and the core competitiveness of research and development is weakened. [0003] At present, the disadvantage of room temperature milk is that ...

Claims

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Application Information

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IPC IPC(8): A23C7/04A23C1/00A23C3/03
Inventor 胡鹏丽王孟辉钱文涛李洪亮牛世祯哈斯格日图李明奇关志涵杨晋辉赵婧茹任晓敏刘璟乌云
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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