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Walnut peptide stable to zinc ions as well as preparation method and application of walnut peptide

A technology of walnut peptide and zinc ion, applied in the application, the function of food ingredients, the processing of vegetable protein, etc., can solve the problems of solution mixing and affecting the sensory quality of products, etc.

Active Publication Date: 2021-05-28
广州合诚实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical application, some specific application scenarios are found, such as oral liquid products, walnut peptide is used together with zinc citrate, the solution becomes mixed, and a precipitate forms at the bottom after standing for a period of time, which seriously affects the sensory quality of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] (1) 50kg of walnut protein powders are configured into 1000kg of protein solutions with a concentration of 5% by mass with deionized water, and the walnut protein powders are dispersed at a shear rate of 500 rpm;

[0049] (2) Heat the dispersed walnut protein solution to 90°C and keep it for 120 minutes to fully expand the molecular structure of the walnut protein, and then cool it to 60°C;

[0050] (3) Add 0.025kg tannase (Xiasheng (Beijing) Biotechnology Development Co., Ltd., food grade tannase FDG-2254), 0.025kg cellulase (Xiasheng (Beijing) Biological Science and Technology Development Co., Ltd., food-grade solid cellulase FDG-2226), enzymolysis at 50°C for 2 hours, degrades polyphenols, cellulose and other components in walnut protein powder, reduces discoloration, and is conducive to further enzymolysis;

[0051] (4) Use a concentration of 1mol L -1 Sodium hydroxide solution to adjust the pH of the enzymolysis solution finally obtained in step (3) to 7.0~9.0, add ...

Embodiment 2

[0060] (1) 200kg of walnut protein powder is configured into 1000kg of protein solution with a concentration of 20% by mass with deionized water, and the walnut protein powder is dispersed at a shear rate of 500 rpm;

[0061] (2) Heat the dispersed walnut protein solution to 95°C and keep it for 5 minutes to fully expand the walnut protein molecular structure, and then cool the temperature to 60°C;

[0062] (3) Add 0.1kg tannase (Xiasheng (Beijing) Biotechnology Development Co., Ltd., food grade tannase FDG-2254), 0.1kg cellulase (Xiasheng (Beijing) Biological Science and Technology Development Co., Ltd., food-grade solid cellulase FDG-2226), enzymolysis at 50°C for 2 hours, degrades polyphenols, cellulose and other components in walnut protein powder, reduces discoloration, and is conducive to further enzymolysis;

[0063] (4) Use 10mol·L -1 potassium hydroxide solution to adjust the pH of the enzymolysis solution finally obtained in step (3) to 7.0-9.0, add 4kg alkaline pro...

Embodiment 3

[0071] (1) 100kg of walnut protein powder is configured into 1000kg of protein solution with a concentration of 10% by mass with deionized water, and the walnut protein powder is dispersed at a shear rate of 5000 rpm;

[0072] (2) Heat the dispersed walnut protein solution to 95°C and keep it for 30 minutes to fully expand the walnut protein molecular structure, and then cool it to 60°C;

[0073] (3) Add 0.1kg tannase (Xiasheng (Beijing) Biotechnology Development Co., Ltd., food grade tannase FDG-2254), 0.1kg cellulase (Xiasheng (Beijing) Biological Science and Technology Development Co., Ltd., food-grade solid cellulase FDG-2226), enzymolysis at 50°C for 2 hours, degrades polyphenols, cellulose and other components in walnut protein powder, reduces discoloration, and is conducive to further enzymolysis;

[0074] (4) Use 5mol·L -1 Calcium hydroxide solution to adjust the pH of the enzymolysis solution finally obtained in step (3) to 7.0-9.0, add 2kg alkaline protease (Alcalas...

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Abstract

The invention discloses a walnut peptide stable to zinc ions as well as a preparation method and application of the walnut peptide. By taking walnut protein powder as a raw material, walnut protein is decomposed into a short peptide mixture by virtue of an efficient biological enzymolysis technology, further a zinc preparation is added for complexing partial peptide fragment, target walnut peptide is obtained by virtue of a centrifugation and membrane filtration method, and finally a target product is obtained by virtue of concentration, sterilization and spray drying processes. The walnut peptide can be widely applied to the fields of products such as formula food for special medical purposes, oral liquid, dairy products and common beverages.

Description

technical field [0001] The invention belongs to the field of food, and in particular relates to a walnut peptide stable to zinc ions, a preparation method and application thereof. Background technique [0002] "Nuts every day" has become a deeply rooted concept of healthy eating, that is, supplementing nuts properly every day in addition to the general diet. Walnuts are a very important kind of nut food. Regular consumption of walnuts has preventive and therapeutic effects on heart disease, cancer, and vascular diseases, and can also improve eyesight and brain. my country is a big producer of walnuts, with more than 380 kinds of germplasm resources, which are cultivated in most provinces. The main production areas are concentrated in Yunnan, Sichuan, Xinjiang, Shanxi, Shaanxi, Hebei and other provinces. The annual output can reach up to 200,000 tons, and showing an increasing trend year by year. [0003] Walnut oil is a rapidly developing industry in recent years, and a lar...

Claims

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Application Information

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IPC IPC(8): A23J3/14A23J3/34A23G3/36A23G3/44A23L2/38A23L2/39A23L33/16A23L33/18
CPCA23J3/14A23J3/346A23L33/18A23L33/16A23L2/39A23G3/362A23G3/44A23L2/38A23V2002/00A23V2200/30A23V2250/1642A23V2250/55A23V2300/10A23V2250/1614A23V2250/16A23V2250/1578A23V2250/032A23V2250/056A23V2250/044A23V2250/046A23V2250/042
Inventor 王才华周雪松曾建新蒋文真
Owner 广州合诚实业有限公司
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