Method for preparing goat milk beverage containing ACE (Angiotensin Converting Enzyme) inhibitory peptide

A peptide goat milk and beverage technology, which is applied in the field of preparation of goat milk beverages containing ACE-inhibiting peptides, to achieve the effect of small molecular weight, small molecular weight and easy digestion

Inactive Publication Date: 2013-07-24
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still a blank for goat milk

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] A preparation method of goat milk beverage containing ACE inhibitory peptide, the steps of the preparation method are:

[0023] Step 1: Cool the reconstituted goat milk to 4°C, use a high-speed centrifuge at 6400 rpm for 15 minutes, then remove the fat to obtain skim milk;

[0024] Step 2: Heat the obtained skimmed milk in a constant temperature water bath in the range of 35-75°C. Use a magnetic heating stirrer for stirring at a stirring speed of 0-1600 rpm. While stirring, add the HCl solution dropwise to make the skim milk The pH value is 4.2-5.0, and the casein is precipitated. After centrifugation at 6400 rpm for 15 minutes in a high-speed centrifuge, the supernatant is discarded, and the precipitated casein is freeze-dried and pre-frozen at -40°C for 12 hours. Then transfer to a freeze dryer and freeze-dry at -55°C for 24 hours to obtain a freeze-dried casein powder, and determine the casein yield;

[0025] Step 3: The obtained casein freeze-dried powder is made into a c...

Example Embodiment

[0031] Example one

[0032] A preparation method of goat milk beverage containing ACE inhibitory peptide, the steps of the preparation method are:

[0033] Step 1: Mix and dissolve goat milk powder and water according to a mass ratio of 1:9, and cool the obtained reconstituted goat milk to 4°C, use a high-speed centrifuge at 6400 rpm for 15 minutes to remove fat, and obtain skim milk;

[0034] Step 2: Heat the obtained skimmed milk in a constant temperature water bath at 35°C, stir with a magnetic heating stirrer at 800rpm, and add HCl solution dropwise while stirring to make the pH of the skim milk solution 4.6. The protein is precipitated. After centrifugation at 6400 rpm for 15 minutes in a high-speed centrifuge, the supernatant is discarded, and the precipitated casein is freeze-dried, pre-frozen at -40°C for 12 hours, and then transferred to the freeze dryer at- It was freeze-dried at 55°C for 24 hours to obtain a freeze-dried casein powder. The casein yield was determined. Und...

Example Embodiment

[0035] Example two

[0036] Step 1: Mix and dissolve goat milk powder and water according to the mass ratio of 1:9, and cool the obtained reconstituted goat milk to 4°C, use a high-speed centrifuge at 6400 rpm for 15 minutes to remove fat to obtain skim milk;

[0037] Step 2: Heat the obtained skimmed milk in a constant temperature water bath at 45°C. Use a magnetic heating stirrer for stirring at 800rpm. Add HCl solution dropwise while stirring to make the pH of the skim milk solution 4.5. The protein is precipitated. After centrifugation at 6400 rpm for 15 minutes in a high-speed centrifuge, the supernatant is discarded, and the precipitated casein is freeze-dried, pre-frozen at -40°C for 12 hours, and then transferred to the freeze dryer at- It was freeze-dried at 55℃ for 24h to obtain a lyophilized casein powder, and the yield of casein was determined. At a temperature of 45℃, pH value of 4.5, and stirring intensity of 800rpm, the yield of casein was the largest, reaching 11.88...

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Abstract

A method for preparing a goat milk beverage containing ACE (Angiotensin Converting Enzyme) inhibitory peptide comprises the following steps of: cooling, centrifuging and fatting reconstituted goat milk, thereby obtaining skimmed milk; preparing casein from the skimmed milk by an isoelectric precipitation method, and obtaining polypeptide powder through enzymolysis; and mixing polypeptide powder with reconstituted goat milk, concentrated fruit juice, polypeptide powder, cane sugar, citric acid, beta-cyclodextrin, purified water and the like to obtain the goat milk beverage containing ACE inhibitory peptide. The goat milk beverage containing ACE inhibitory peptide prepared by the method provided by the invention contains the ACE inhibitory peptide and thereby has obvious effect of reducing blood pressure; if the hyperpietic drinks the goat milk beverage for a long time, the blood pressure of the hyperpietic can be reduced; and the goat milk beverage is mild in properties without side effect on people of normal blood pressure; and the goat milk beverage containing ACE inhibitory peptide has various effects of immunological activity, and prompting digestive absorption and losing weight, and the like.

Description

technical field [0001] The invention relates to a method for preparing a drink, in particular to a method for preparing a goat milk drink containing ACE inhibitory peptide. Background technique [0002] With the development of social economy and the gradual improvement of living standards, the proportion of fat and calories in people's diet has increased significantly, and the improvement of mechanization, automation and information technology has gradually reduced people's daily physical activities. However, these It will lead to a rapid increase in the incidence of cardiovascular and cerebrovascular diseases. Cardiovascular disease is mainly coronary heart disease, which is also called coronary atherosclerotic heart disease, and hypertension is an important risk factor for atherosclerosis, and blood pressure level is positively correlated with the risk of cardiovascular disease. The 2010 Chinese guidelines for the prevention and treatment of hypertension pointed out that ...

Claims

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Application Information

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IPC IPC(8): A23C9/156A23C9/158A23C9/152A23C9/15
Inventor 陈合王娟舒国伟
Owner SHAANXI UNIV OF SCI & TECH
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