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Rapid Extraction Technology of Broken Rice Starch

A technology for broken rice and starch, applied in the field of food processing, can solve the problems of difficult recycling of surfactants, high production cost of surfactants, difficulty in inactivating enzymes, etc., to shorten the extraction time of starch, low protein residues, The effect of shortening the extraction time

Active Publication Date: 2018-11-13
INST OF AGRI PROD QUALITY SAFETY & STANDARD JIANGXI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the alkaline leaching method often produces a large amount of alkaline waste liquid, causing environmental pollution; the production cost of the surfactant method is high, and it is difficult to recycle the surfactant; the enzymatic method of extracting rice starch is difficult to destroy the enzyme

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The present invention is achieved like this, and its processing step is:

[0027] (1) Raw material processing: put the dried broken rice into a swing grinder and pulverize it to 80-250 mm to obtain a kind of rice flour;

[0028] (2) Mixing: Put the crushed rice in an open container, add water to the rice flour to prepare a solution with a solid-to-liquid ratio of 1:3 to 1:5, and stir with a glass rod;

[0029] (3) Ultra-fine mashing: all the slurry is transferred to a high-speed tissue masher to stir and mash the slurry for 30-40 minutes;

[0030] (4) Negative pressure rapid imbibition: Pour the crushed slurry in step (3) back into the container, put it in the vacuum box, start the vacuum pump to vacuumize, so that the vacuum box is under negative pressure and its vacuum degree is 0.06-0.1Mpa , and keep it for 15-20 minutes, deflate and pump air twice in the middle; the negative pressure loosens the closely combined broken rice starch and protein, and the rice noodles ...

Embodiment 2

[0038] The present invention is achieved like this, and its processing step is:

[0039] (1) Raw material processing: put the dried broken rice into a swing grinder and pulverize it to 80-250 mm to obtain a kind of rice flour;

[0040] (2) Mixing: put the rice noodles in an open container, add 0.4% edible sodium bicarbonate solution to the rice noodles to prepare a solution with a solid-to-liquid ratio of 1:3 to 1:5, and stir with a glass rod;

[0041] (3) Ultra-fine mashing: all the slurry is transferred to a high-speed tissue masher to stir and mash the slurry for 30-40 minutes;

[0042] (4) Negative pressure rapid absorption: pour the crushed slurry back into the container, put it in the vacuum box, start the vacuum pump to vacuumize, make the vacuum box under negative pressure and its vacuum degree is 0.06-0.1Mpa, and keep it for 15-20min , Deflate and pump 2 times in the middle. Negative pressure loosens the tightly combined broken rice starch and protein, and the rice ...

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PUM

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Abstract

The invention provides a quick extraction technology for broken rice starch. According to the quick extraction technology, broken rice is utilized as a raw material. The quick extraction technology mainly comprises the work procedures of treating raw materials, mixing size, superfinely mashing, performing negative-pressure imbibition technology for a first time, ultrasonically treating size, performing negative-pressure imbibition technology for a second time, washing to separate starch, drying, smashing and the like. The broken rice starch prepared through the technology disclosed by the invention has high purity and extraction rate, short extraction time and low protein residual quantity, and the broken rice starch is prevented from going bad and rancid in high temperature in summer or long soaking time. The extraction technology disclosed by the invention utilizes a physical method, has no environmental pollution, can keep original rice flavor of the extracted rice starch, has low energy consumption, high efficiency, simple technological process, low production cost and easiness in industrialization implementation; in addition, compared with a traditional processing method, the produced starch has better completeness and functionality.

Description

technical field [0001] The invention belongs to the field of food processing, and relates to a method for rapidly extracting broken rice starch. Background technique [0002] China is the "Kingdom of Rice", and its annual rice output accounts for about 34% of the world's total annual rice output, ranking first in the world. However, the processing of rice is only in a state of primary processing to meet the ration needs of the majority of the population. Every year, nearly 90 million tons of by-products of various rice processing have not been rationally developed and further fully utilized, among which the by-products are broken rice. 35%. For a long time, due to the limitation of processing technology, the broken rice in rice processing has not been used in a timely and efficient manner, resulting in a large waste of resources. [0003] Broken rice contains 80% high-quality rice starch and 8% rice protein. The starch content is high, and the texture of low particle size s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08B30/04
CPCC08B30/042
Inventor 祝水兰冯健雄刘光宪周巾英朱雪晶付晓记
Owner INST OF AGRI PROD QUALITY SAFETY & STANDARD JIANGXI ACAD OF AGRI SCI