Pure milk with super-long shelf life and preparation method thereof

A technology of shelf life and pure milk, applied in milk preparations, other dairy products, dairy products, etc., can solve the problems of low protein content of pure milk, short shelf life, thin taste, etc., to achieve thick taste and reduce consumption. The effect of reducing the amount of space and reducing the floor space

Active Publication Date: 2018-05-25
INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation method can not only solve the problems of low protein content and short shelf life of pure milk products produced in the prior art, but also solve the problem of serious f

Method used

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  • Pure milk with super-long shelf life and preparation method thereof
  • Pure milk with super-long shelf life and preparation method thereof
  • Pure milk with super-long shelf life and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] According to a preferred embodiment of the present invention, the preparation method of the ultra-long shelf-life pure milk provided by the present invention may comprise the following steps:

[0040] 1. Inspection, milk collection, filtration, cooling and storage;

[0041] 2. Standardization:

[0042] (1) Make a part of the raw milk passed through the ultrafiltration membrane (UF membrane) through inspection, milk collection, filtration, cooling, and storage to obtain ultrafiltration membrane retentate and ultrafiltration membrane permeate;

[0043] (2) make described ultrafiltration membrane permeate pass reverse osmosis membrane (RO membrane), obtain reverse osmosis membrane retentate and reverse osmosis membrane permeate;

[0044] (3) Separating another part of the raw milk that has been inspected, collected, filtered, cooled, and stored but has not passed through the ultrafiltration membrane and the reverse osmosis membrane; Collect milk, filter, cool and store t...

Embodiment 1

[0071] This embodiment provides a kind of ultra-long shelf-life pure milk, and its preparation method comprises the following steps:

[0072] 1. Inspection, milk collection, filtration, cooling and storage;

[0073] 2. Standardization:

[0074] (1) Make a part of the raw milk passed through the ultrafiltration membrane (UF membrane) through inspection, milk collection, filtration, cooling, and storage to obtain ultrafiltration membrane retentate and ultrafiltration membrane permeate;

[0075] (2) make described ultrafiltration membrane permeate pass reverse osmosis membrane (RO membrane), obtain reverse osmosis membrane retentate and reverse osmosis membrane permeate;

[0076] (3) Separating another part of the raw milk that has been inspected, collected, filtered, cooled, and stored but has not passed through the ultrafiltration membrane and reverse osmosis membrane to obtain cream and skimmed milk;

[0077](4) Before pasteurization, mix the ultrafiltration membrane retenta...

Embodiment 2

[0117] This example provides a kind of ultra-long shelf life pure milk, its preparation method is basically the same as Example 1, the difference is:

[0118] In the semi-finished product before the pasteurization, the mass ratio of the ultrafiltration membrane retentate, skimmed milk, reverse osmosis membrane retentate, reverse osmosis membrane permeate and cream is as shown in Table 7;

[0119] Table 7

[0120] name

UF retentate

RO retentate

RO permeate

cream

skim milk

Semi-finished products before pasteurization

50

3.1915

5.4752

1.3333

60

[0121] The physicochemical index of the semi-finished product before described pasteurization is as shown in table 8;

[0122] Table 8

[0123] name

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Abstract

The invention provides pure milk with a super-long shelf life and a preparation method thereof. The preparation method at least comprises the following steps of standardization, pasteurization, cooling, storage, ultra-heat treatment, cooling and filling, wherein the standardization adopts a production process of a membrane filtration technology combining RO (reverse osmosis) and UF(ultra filtration) so as to adjust indexes, and the ultra-heat treatment adopts a post-homogenization process, and the first-degree homogenization pressure is 250-400bar and the second-degree homogenization pressureis 50-100bar. The pure milk with a super-long shelf life is prepared by the preparation method. The preparation method of the pure milk with a super-long shelf life provided by the invention mainly adopts RO membranes and UF membranes to carry out separation of milk components, adopts a process of recombining the components after the separation, and adopts the UHT post-homogenization process, so that the method not only can ensure that the fat of milk products do not severely float and cake during a long shelf life of 9 to 12 months, but also can ensure a strong mouth feel of the products at the same time.

Description

technical field [0001] The invention relates to a super-long shelf-life pure milk and a preparation method thereof, belonging to the technical field of liquid dairy products. Background technique [0002] At present, due to the unbalanced supply relationship of raw milk in China and the rising price of dairy cow feed, the price of raw milk will continue to run at a high level in the next few years, reducing product profits and affecting the profitability of enterprises. The price of foreign raw milk is relatively low. It is cheap and has a small growth rate, which has a positive effect on improving the profitability of enterprises and enhancing their competitiveness. [0003] At present, the flash evaporation method is generally used in the industry to prepare pure milk, but this method is only suitable for the production of pure milk with low protein content, and the shelf life of the product is short. The method mainly includes the following steps: inspection, milk collec...

Claims

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Application Information

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IPC IPC(8): A23C9/15A23C3/03
CPCA23C3/03A23C9/15A23C2210/206A23C2210/252
Inventor 刘亚鹏王彦平巴根纳樊启程付永刚贺保平郭美丽牛浩
Owner INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD
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