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Preparation method of high-purity polished glutinous rice protein and application of high-purity polished glutinous rice protein for preparing protein beverage

A glutinous rice protein, high-purity technology, applied in the field of food processing, can solve the problems of lack of matching glutinous rice protein refining equipment, etc., to achieve the effect of reducing equipment investment, high stability, and good taste

Inactive Publication Date: 2017-07-07
WUXI JINNONG BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of glutinous rice protein mostly starts from glutinous rice, but the manufacturers currently producing glutinous rice starch do not have matching glutinous rice protein refining equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Pretreatment of glutinous rice protein dregs: select rice dregs for the production of glutinous rice starch, require no peculiar smell, and remove obvious impurities;

[0026] (2) sieving after secondary fine crushing: the pretreated glutinous rice dregs are passed through a 80-mesh sieve after coarse crushing, fine crushing, and sieving;

[0027] (3) Swelling: the sieved glutinous rice dregs were mixed with a concentration of 10%, the alkalinity was adjusted with KOH solution to make the pH 7.5, stirred and swelled at 60° C. for 2 hours, and passed through the plate frame after swelling;

[0028] (4) One-time enzymatic hydrolysis: 15% of the plate and frame material is slurried, and medium-temperature amylase and lipase are added, wherein the addition amounts of amylase and lipase are 0.2% and 0.1% g / g dry basis protein respectively, at 55°C Under enzymatic hydrolysis for 2 hours, then plate and frame filter press and backwash with hot water at 70°C for 10 minutes;...

Embodiment 2

[0034] (1) Pretreatment of glutinous rice protein dregs: choose glutinous rice dregs of distiller's grains, which require no peculiar smell and remove obvious impurities;

[0035] (2) sieving after secondary fine crushing: the pretreated glutinous rice dregs are passed through a 80-mesh sieve after coarse crushing, fine crushing, and sieving;

[0036] (3) Swelling: the sieved glutinous rice dregs were mixed with a concentration of 13%, the alkalinity was adjusted with KOH solution to make the pH 7.8, stirred and swelled at 65° C. for 3 hours, and passed through the plate frame after swelling;

[0037] (4) One-time enzymatic hydrolysis: pulp the plate and frame material by 16%, add medium-temperature amylase and lipase, and the addition amounts of amylase and lipase are 0.25% and 0.15% g / g dry basis protein respectively, at 58°C Under enzymatic hydrolysis for 3 hours, then plate and frame filter press and backwash with hot water at 75°C for 12 minutes;

[0038] (5) Micro-jet: ...

Embodiment 3

[0043] (1) Pretreatment of glutinous rice protein dregs: select rice dregs for the production of glutinous rice starch, require no peculiar smell, and remove obvious impurities;

[0044] (2) sieving after secondary fine crushing: the pretreated glutinous rice dregs are passed through a 80-mesh sieve after coarse crushing, fine crushing, and sieving;

[0045] (3) Swelling: the sieved glutinous rice dregs were mixed with a concentration of 15%, the alkalinity was adjusted with KOH solution to make the pH 8.0, stirred and swelled at 70° C. for 4 hours, and passed through the plate frame after swelling;

[0046] (4) One-time enzymatic hydrolysis: 18% of the plate and frame material is mixed, and medium-temperature amylase and lipase are added, wherein the addition amounts of amylase and lipase are 0.3% and 0.2% g / g dry basis protein respectively, at 60°C Under enzymatic hydrolysis for 4 hours, then plate and frame filter press and backwash with hot water at 80°C for 15 minutes;

...

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PUM

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Abstract

The invention discloses a preparation method of high-purity polished glutinous rice protein, and belongs to the technology of refining of polished glutinous rice protein. The protein is used for preparing a protein beverage, and belongs to the technical field of beverages. The preparation method is characterized by comprising the following steps of (1) preprocessing polished glutinous rice protein residues; (2) performing fine grinding twice, and performing screening; (3) performing swelling; (4) performing enzymolysis for the first time; (5) performing micro jet; (6) performing enzymolysis for the second time, performing enzyme deactivation, and performing washing; (7) performing drying; and (8) compounding the polished glutinous rice protein and a stabilizing agent, and preparing the polished glutinous rice protein beverage. According to the preparation method disclosed by the invention, two grinding methods including a conventional grinding method and a micro jet method are utilized, so that the grain size of the protein is reduced to the greatest limit; the step of performing enzymolysis for the first time is added between the grinding steps, and the enzymolysis and the grinding are alternately performed, so that the refining time is shortened, the refining efficiency is improved, and the purity of the protein is improved; and when the high-purity polished glutinous rice protein is used for preparing the protein beverage, the polished glutinous rice protein has the notable characteristics better than other vegetable proteins that the mouth feel is soft, glutinous and smooth and during drinking, no residues exist in an oral cavity, so that the protein beverage is easy to accept by a consumer.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for preparing high-purity glutinous rice protein and using it to prepare protein drinks. Background technique [0002] Glutinous rice is highly viscous, and glutinous rice starch components still exist in the glutinous rice residue, so the viscosity is greater than other protein residues. At present, the preparation of glutinous rice protein mostly starts from glutinous rice, but the manufacturers currently producing glutinous rice starch do not have matching glutinous rice protein refining equipment. Contents of the invention [0003] In view of the above-mentioned problems in the prior art, the applicant provides a method for preparing high-purity glutinous rice protein and its application in preparing protein drinks. The purity of the glutinous rice protein obtained by the invention is greater than 90%, the dispersibility in water is 50% higher than that of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L2/38A23L2/84A23L33/185
CPCA23L2/38A23L2/84
Inventor 于秋生徐晖陈林冯伟陈天祥李珍妮朱熹
Owner WUXI JINNONG BIOTECH CO LTD
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