Method of preparing walnut polypeptide powder

A production method and walnut polypeptide technology are applied in the protein composition of vegetable seeds, medical preparations containing active ingredients, food preparation, etc., and can solve problems such as no similar technologies have been found.

Inactive Publication Date: 2008-07-30
NORTHWEST A & F UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] No similar technology has been found

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0025] Protein extraction: When extracting protein, use ultrasonic extraction method, squeeze the walnut residue after oil, crush (through 40 mesh sieve), soak, adjust pH to 8.0-8.5, temperature 50-60°C, solid-liquid ratio 1: 15~1:25, use frequency of 20~50kHz ultrasonic leaching for 1h, then adjust the pH to 4.0~4.5 for protein acid precipitation, let it stand for 4~8h, remove the supernatant, and deposit the obtained precipitate at 3000~4000r / Centrifuge for 15-20 min, remove the supernatant, and obtain the protein.

[0026] Drying: When protein is processed, vacuum drying method is adopted, the temperature of the vacuum chamber is 60-70°C, the degree of vacuum is 0.05-0.07MPa, and the drying time is 8-10 hours.

[0027] Enzymolysis: When the dried walnut protein is enzymatically hydrolyzed, the protease used is papain, and the enzymolysis conditions are: enzyme dosage 4000-6000U / g, substrate concentration 2%-5%, enzymolysis temperature 55-50% 65°C, pH value 6.5-7.5, enzyma...

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PUM

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Abstract

The invention relates to a preparation method of a walnut peptide powder, which effectively embodies a plurality of biological functional properties of the walnut peptide powder, reserves a plurality of nutritional components of walnuts. The polypeptide content in the walnut peptide powder is 60-80 percent, while the walnut peptide powder is light yellow or yellow-white color and has functions of anti-fatigue and antioxidation, etc. The invention comprises the following operation steps: crushing the walnut cakes before extracting the walnut protein, then carrying out enzymatic hydrolysis and centrifugation to the crude walnut protein to acquire the supernatant, dialyzing the supernatant and removing impurities and macromolecular compounds, and then concentrating the acquired dialysate, and at last vacuum drying to prepare the walnut peptide powder and packing into finished products.

Description

Technical field: [0001] The present invention relates to a kind of preparation method of polypeptide powder, especially a kind of preparation method of walnut polypeptide powder Background technique: [0002] No similar technology has been found so far. [0003] Walnut has high medicinal value, containing 40-65% of oil, 14-17% of protein, and 5.8% of vitamins and other nutrients. Benefit the triple burner, warm the lungs and moisten the intestines. Control the lungs and moisten the intestines. Control deficiency and cold, dyspnea and cough, severe pain in the waist and feet, colic pain in trusted subordinates, bloody dysentery and intestinal wind, loose swollen poison,..." "Kaibao Materia Medica" contains "walnut (that is, walnut ) is sweet, flat, and non-toxic. Eating it makes people fat and healthy, moisturizes the muscles and black hair, takes the flesh and burns it to make it black, and the smoke is not broken, and it is mixed with turpentine, and it is used to grind sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J1/14A23J3/14A23L1/36A23L1/29A23L1/305A61K36/52A61P3/02A61P39/06A61P9/12A61P3/06A23L33/18
Inventor 徐怀德陈金海姜莉李艳伏李晓华
Owner NORTHWEST A & F UNIV
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