Fresh milk-grade humanized cow milk protein base material and preparation method thereof

A technology of milk protein and fresh milk, which is applied in the direction of dairy products, milk preparations, and other dairy products, can solve the problems of difficult industrial production and high operating costs, and achieve the effects of localization, good quality, and reduced dependence

Pending Publication Date: 2022-06-07
INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to this scheme, the membrane permeation flux is less than 20kg/m 2 h, high operating costs,

Method used

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  • Fresh milk-grade humanized cow milk protein base material and preparation method thereof
  • Fresh milk-grade humanized cow milk protein base material and preparation method thereof
  • Fresh milk-grade humanized cow milk protein base material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039]This embodiment provides a method for preparing a fresh milk-grade breast milk protein base material, and the process flow diagram of the exploration process in Example 1 is shown in figure 1 , the steps of the research process are as follows:

[0040] (1) Sterilization: Take 50L of raw milk, the mass percentage of dry matter of raw milk is 12.54%, the acidity is lower than 18°T, and the total number of bacteria is 4.8×10 4 pcs / mL; the heating temperature of the sterilizer is 72 °C, heating for 15s, the cooling temperature of the first stage is 65 °C, and the cooling temperature of the second stage is 55 °C.

[0041] (2) Centrifugal skim: 50L of raw milk, at a temperature of 55°C, a centrifugal rotation speed of 7000r / min, and a feed flow rate of 120L / h, carry out milk fat separation, which takes 30min to obtain 48kg of skim milk with a fat content of 0.08%.

[0042] (3) Microfiltration and full filtration: all the obtained skim milk is put into the microfiltration equi...

experiment example 1

[0080] Experimental Example 1 Energy consumption detection

[0081] The energy consumption test results show that in the scheme of directly preparing permeate casein and whey protein 1:1 (Example 1), using a larger membrane pore size, the protein mass transfer rate will be faster, and the average membrane flux throughout the process will be 128kg / m 2 h, compared to the membrane flux of Comparative Example 1 (66kg / m 2 h) Nearly twice as high, the separation speed is faster, thus saving separation time and energy consumption.

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Abstract

The invention relates to the technical field of dairy product processing, in particular to a fresh milk-grade humanized cow milk protein base material and a preparation method thereof. According to the preparation method provided by the invention, the humanized cow milk protein base material can be obtained in one step, specifically, fresh cow milk is taken as a raw material, the raw material is degreased and sterilized, the cow milk is subjected to graded filtration through membranes with different pore diameters by adopting a hot filtration process, and different transmembrane pressure differences are adjusted to obtain the humanized cow milk protein base material. The ratio of casein to whey protein in the penetrating fluid is close to the ratio of protein in breast milk, then spray drying is carried out to prepare the humanized protein base material powder, and the filtrate can be directly prepared or the humanized protein base material powder is used for producing infant formula milk powder. The prepared humanized base material is prepared by separating fresh milk as a raw material, and the quality of the base material is better than that of cheese whey; in addition, localization of milk-based ingredients in the infant formula milk powder industry can be realized.

Description

technical field [0001] The invention relates to the technical field of dairy product processing, in particular to a fresh milk-grade breast milk protein base material and a preparation method thereof. Background technique [0002] Infant formula milk powder, also known as breast milk powder, refers to milk (goat milk) and its processed products as the main raw materials, adding appropriate amount of vitamins, minerals and other auxiliary materials. product. Infant formula powder needs to contain enough protein, fat, carbohydrates, minerals and vitamins to mimic the composition of breast milk as much as possible to maintain the growth and development of the baby. However, due to the natural differences in protein content between cow and goat milk and human milk, for example, the ratio of casein to whey protein in milk protein is about 8:2, while the ratio of human milk casein to whey protein is about 5:5. This requires that a certain amount of whey protein base should be ad...

Claims

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Application Information

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IPC IPC(8): A23C9/142A23C9/14A23C7/04
CPCA23C9/1422A23C9/14A23C7/04A23C7/046
Inventor 张书文吕加平宋博逄晓阳谢宁张雨萌
Owner INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI
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