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Preparation method of rice peptide chelated calcium

A technology of rice peptide and chelated calcium, applied in food science, protein-containing food ingredients, applications, etc., can solve problems affecting product quality and flavor, solvent residues, etc., to improve substrate utilization, reduce solvent pollution, and retain The effect of the original flavor

Pending Publication Date: 2021-07-30
山东大树达孚特膳食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, rice peptide chelated calcium is as a kind of important chelated calcium fortifier, there is no report about the technology of this production product at present
Common protein peptide chelated metal ions (calcium, iron, copper, selenium, etc.) use peptide chelation after enzymatic protein hydrolysis or peptide chelation of metal ions directly, and then use ethanol precipitation to wash and refine the product, which is likely to cause solvent residues. Affect product quality and flavor

Method used

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  • Preparation method of rice peptide chelated calcium
  • Preparation method of rice peptide chelated calcium
  • Preparation method of rice peptide chelated calcium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] like figure 1 As shown, the method of preparing the calcium of the rice peptide chelate, the specific steps are:

[0052] (1) Pretreatment: The rice protein powder is dissolved with pure water, the material is 1: 9, and then the wet grinding is pulverized to obtain the rice proteolytic;

[0053] (2) Enzymatic solution: The rice protein pulp obtained by (1) is added to the composite protease-free solution; the mean protease is obtained; the composite protease is the alkaline protease (E0103), papain protease; enzymatic temperature 50 ° C, pH 7 The enzymatic solution is 3 h.

[0054] (3) The enzyme: the enzymatic hydrolyzate obtained by the (2) is warmed to 90 ° C for 10 min, and the enzyme is rt.

[0055] (4) Filtering: (3) The levotherter solution obtained by the step is obtained by ceramic membrane microfiltration and nanofiltration, and the mean peptide liquid is collected;

[0056] The ceramic of the ceramic is filtered in a filter film, and the molecular weight of the m...

example 1

[0059] Table 2 Example 1 rice peptide amino acid composition

[0060]

[0061]

[0062] (5) Chelating: Calcium chloride, coastal calcium chloride, lifting and reaction to the rice peptide solution to the calcium peptide solution, and obtain the rice peptide chelate calcium fluid;

[0063] The above chelating reaction calcium source substance is formulated into a solution of 10% (m / w) to the rice peptide solution, the chelate reaction temperature is 50 ° C, pH 7, chelating 1 h.

[0064] (6) Concentration, alcohol sink and washing: Step (5) The liquid is concentrated to 1 / 2 of the original volume, add 3 times volume of 95 ethanol precipitation, centrifugal or filtration to collect precipitation, and use 4 times volume 95 Ethanol washing, remove uncharged calcium ions and peptides;

[0065] (7) Drying into powder; the washed rice peptide chelate is dried with a vacuum drying tank to control the drying temperature of 40 ° C. After drying, pulverized over 100 mesh sieves, and pow...

Embodiment 2

[0069] like figure 1 As shown, the method of preparing the calcium of the rice peptide chelate, the specific steps are:

[0070] (1) Preprocessing: The rice protein powder is dissolved with pure water, the material is 1: 4, and then the wet grinding is pulverized to give the rice proteolytic;

[0071] (2) Enzymatic hydrolysis: The rice protein pulp obtained by Step is added to the composite protease enzymatic solution; the rice protease is obtained; the composite protease is a basic protease (E0103), a flavor protease. The enzymatic hydrolysis temperature is 55 ° C, pH 6, and the enzymatic solution is 5 h.

[0072] (3) Upsenase: The enzymatic hydrolyzate obtained by Step is warmed to 90 ° C for 20 min, and the enzyme is rt.

[0073] (4) Filtering: The ulcogenating liquid obtained by C is collected by ceramic membrane microfiltration and nanofiltration, and the rice peptide solution is collected;

[0074] The ceramic described above is a film intercept molecular weight at 20 kDa, a...

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Abstract

The invention provides a preparation method of rice peptide chelated calcium. The method comprises the following steps: performing enzymolysis on rice protein powder serving as a raw material to obtain rice peptide, and performing chelation reaction on the rice peptide and a calcium source to prepare the rice peptide chelated calcium, so the variety of calcium supplement products is enriched, and the raw material source of the calcium supplement products is expanded. The rice peptide chelated calcium can also be used as a food raw material to be compounded with other products to prepare products such as tablet candies, effervescent tablets, bulletproof coffee and the like. Low-temperature operation is adopted as far as possible in the extraction process of the rice peptide chelated calcium, the biological activity of the product is reserved to the maximum extent, and the product quality is improved. And the rice protein powder is deeply processed, so that high-value utilization is realized.

Description

Technical field [0001] The present invention relates to food nutritional reinforcing agents and preparation techniques, and more particularly to the preparation method of rice peptide chelation calcium. Background technique [0002] The rice peptide is used as a raw material for rice protein (powder), using a biological enzyme-enzymatic mean protein and utilizes biological enzyme modification to modify the protein peptide to form a peptide product. The amino acid content and type of rice peptide are consistent with rice protein. However, the rice peptide has a bioactivity of many rice proteins. The rice polypeptide has great activity and diversity, which does not need to be digested, directly absorbed in the small intestine, and does not consume human energy. It can act as a carrier, the human intake calcium and other various trace elements are transported to various parts of the human body. Millet peptide is active protein nutrition, supplement with human consumption, enhances p...

Claims

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Application Information

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IPC IPC(8): A23L33/165A23L33/18A23L29/00
CPCA23L33/165A23L33/18A23L29/06A23V2002/00A23V2250/1578A23V2250/55
Inventor 李树瑞李玉岭陆世海薛冰刘艳飞张大虎于伟东袁守彦
Owner 山东大树达孚特膳食品有限公司
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