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Method for processing high-protein rice flour by using broken rice

A technology of high-protein rice flour and broken rice, which is applied in plant protein processing, protein food ingredients, protein food processing, etc., can solve the problems of low protein extraction rate, increase protein content, solve low protein content, and improve economic value Effect

Pending Publication Date: 2020-01-31
安徽金太阳食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Alkaline extraction is a traditional protein extraction method, which mainly uses the characteristics of high solubility of protein under alkaline conditions and low solubility under isoelectric point conditions, and separates protein from starch and cellulose by adjusting the pH value of the dispersion system , but its protein extraction rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Soaking and pulping: Soak 50kg of broken rice and 50kg of water for 12 hours, and use a colloid mill to pulverize to a fineness of 25-30 μm to obtain rice milk;

[0037] (2) Instantaneous high-pressure treatment: Utilize micro-jet homogenizer to carry out instantaneous high-pressure treatment on rice milk, with a pressure of 75MPa, a temperature of 35°C, a high-pressure hold time of 2min, and a cycle of 3 times with an interval of 10min;

[0038] (3) Alkali treatment: Add 0.1mol / L sodium hydroxide solution to the rice milk after instantaneous high pressure treatment to adjust the pH to 12, stir at 800r / min and 35°C for 12h, and centrifuge at 4000r / min Separation for 5 minutes and collecting the supernatant;

[0039] (4) Enzyme treatment: add dropwise 0.1mol / L hydrochloric acid solution to the supernatant obtained in step (3) to adjust the pH to 5, and centrifuge for 5 minutes at a rotating speed of 4000r / min to obtain supernatant and precipitate; Add 25g of α-amyla...

Embodiment 2

[0042] Step (4) in Example 1 is replaced by "enzyme treatment: add dropwise 0.1mol / L hydrochloric acid solution to the supernatant obtained in step (3) to adjust the pH to 5, and centrifuge at 4000r / min for 5min to obtain the above Supernatant and sediment: Add 25g of α-amylase, 10g of cellulase and 3.5g of enzyme activator L-carnitine to the supernatant, stir at 800r / min and 50°C for 12h, and centrifuge at 4000r / min Separation 5min, collect supernatant again ", all the other are with embodiment 1.

Embodiment 3

[0044] The step (2) instantaneous high-pressure treatment operation in embodiment 1 is deleted, and step (2) is replaced by " 50kg broken rice utilizes superfine pulverizer to make 120 purpose rice flour, rice flour is placed in low-temperature plasma generator, The discharge gas is helium, the irradiation power is 150W, and the irradiation time is 90s, and then 50kg of water is added to make a slurry with a fineness of 25-30 μm through colloid milling to obtain rice milk, and the rest are the same as in Example 1.

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Abstract

The present invention discloses a method for processing high-protein rice flour by using broken rice and relates to the technical field of high-protein food processing. The method comprises the following steps: (1) soaking and pulping; (2) instantaneous high-pressure treating; (3) alkali treating; (4) enzyme treating; and (5) drying and milling. The broken rice is used as a raw material to prepareprotein rice flour, reasonable reuse of the broken rice as a by-product of rice processing is realized, and economic value of the broken rice is improved. Besides, screening and combining of an extracting technology enable protein content in the prepared protein rice flour to be greatly improved, and a technical problem of low protein content in conventional extraction methods is solved.

Description

Technical field: [0001] The invention relates to the technical field of high-protein food processing, in particular to a method for processing high-protein rice flour using broken rice. Background technique: [0002] Broken rice is the unavoidable leftovers in the rice processing process, and it is usually used as a raw material for feed processing. In order to improve the utilization value of broken rice, the use of broken rice to prepare refined products such as modified starch, protein rice flour and maltitol has become more and more widely used in recent years. [0003] Rice protein is a protein with high nutritional value. It not only has a reasonable amino acid composition and high bioavailability, but also does not contain toxic substances and enzyme obstacles that affect food utilization. It is hypoallergenic and is considered a A high-quality vegetable protein. [0004] Alkaline extraction is a traditional protein extraction method, which mainly uses the character...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23J3/14A23J3/34
CPCA23J3/14A23J3/34
Inventor 朱同贵王必华
Owner 安徽金太阳食品有限公司
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