Method for preparing ass milk freeze-dried powder at low-temperature condition

A low-temperature, freeze-dried powder technology, used in dairy products, milk preservation, milk preparations, etc., can solve the problems of microbial cell death and hinder microbial cell activity, and achieve the effect of ensuring safety.

Inactive Publication Date: 2018-07-24
NORTHWEST NORMAL UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two effects will hinder all activities in the microbial cells, resulting in the death of microbial cells

Method used

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  • Method for preparing ass milk freeze-dried powder at low-temperature condition
  • Method for preparing ass milk freeze-dried powder at low-temperature condition
  • Method for preparing ass milk freeze-dried powder at low-temperature condition

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Embodiment Construction

[0011] The preparation process of donkey milk freeze-dried powder of the present invention and the nutritional value of the product will be further described below through examples.

[0012] 1. Preparation of donkey milk freeze-dried powder

[0013] (1) Fresh milk storage: collect fresh donkey milk in a 300ml aseptic plastic bottle, and place it in the refrigerator at 0-4°C to cool it;

[0014] (2) Coarse filtration: filter donkey milk with nylon gauze of about 80 mesh to remove macromolecular impurities in donkey milk;

[0015] (3) Centrifugal degreasing: Centrifuge the coarsely filtered donkey milk at 4°C and 5000r / min for 15 minutes to remove fat particles floating on the surface of the supernatant, then pour the centrifuged donkey milk into a clean sterile petri dish, The amount of donkey milk in each petri dish is 100ml (excluding centrifugal sedimentation); the average moisture content of donkey milk after centrifugal degreasing is 93.8%.

[0016] (4) Freeze-drying: Pu...

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Abstract

The invention discloses a method for preparing ass milk freeze-dried powder at the low-temperature condition. The method comprises the following steps of cooling collected fresh ass milk at 0-4 DEG C,and performing coarse filtering with a nylon gauze to remove macromolecule impurities in the ass milk; performing centrifugation defatting on the ass milk at 4-10 DEG C, and placing the defatted assmilk in a freeze drier cold trap for freeze drying so as to obtain the ass milk freeze-dried powder; and then performing superfine crushing on the ass milk freeze-dried powder, performing packing, performing sealing, performing low-dose instantaneous irradiation on the ass milk freeze-dried powder with a Co60-electron beam to obtain the ass milk freeze-dried powder. The entire operation process for making the ass milk freeze-dried powder is performed under the low-temperature condition, so that the nutrient components and special flavor in the ass milk are maintained to the maximum extent. Theobtained ass milk freeze-dried powder is rich in whey protein, selenium and taurine, is low in fat, low in cholesterol and low in acidity; the solubility is 98%; the Co60-electron beam is used for low-dose instantaneous irradiation sterilization on the ass milk, so that the ass milk freeze-dried powder is free from pollution by microorganisms and pathogenic bacteria, and the safety of the ass milk freeze-dried powder is guaranteed.

Description

technical field [0001] The invention relates to a method for preparing freeze-dried donkey milk powder, in particular to a method for preparing freeze-dried donkey milk powder under low temperature conditions, and belongs to the technical field of milk powder processing. Background technique [0002] Donkey milk is the closest milk treasure to human milk. It has a health care effect on the heart, stomach, spleen, lung, liver, prostate and other organs of the human body. Its nutritional content is close to 99% of human milk. Donkey milk is rich in essential fatty acids, essential amino acids, whey protein, selenium, taurine and epithelial cell growth factors. It is low in fat, low in cholesterol and low in ash, and is called a treasure in milk by the nutritional circles. According to a survey, 30% of infants and young children in my country cannot be breast-fed, nor can they be breast-fed with ingredients close to breast milk and containing formulas of important nutrients of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23C9/16A23C1/08A23C3/07A23C7/04
CPCA23C1/08A23C3/07A23C7/046A23C9/16
Inventor 张继丁玲宋珅陆树林杨新军焦彩珍陈乐乐姚健
Owner NORTHWEST NORMAL UNIVERSITY
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