Method for extracting edible rice starch and rice protein from broken rice with excessive pesticide residues

A technology of rice starch and rice protein, applied in the field of food processing, can solve the problems of wasting energy, damage product quality, reduce product yield, etc., and achieve the effects of good safety, increased yield, and reduced residual protein

Active Publication Date: 2021-11-26
JIANGNAN UNIV
View PDF12 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the rice is harvested, some pesticides still remain on the rice. At the same time, during the storage of the rice, it is easy to be contaminated by fungi and produce mycotoxins such as aflatoxin.
In the rice milling process, as many as 10% of broken rice will be produced, and the broken rice contains more rice husks and pesticide residues, which greatly reduces the utilization value of broken rice. Now broken rice is mostly used for animals. In the feed, even if the protein and starch are extracted, these harmful substances wil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for extracting edible rice starch and rice protein from broken rice with excessive pesticide residues
  • Method for extracting edible rice starch and rice protein from broken rice with excessive pesticide residues
  • Method for extracting edible rice starch and rice protein from broken rice with excessive pesticide residues

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Raw material crushing: the ratio of rice to water to liquid is 1:6 (g / L), soaked in 0.1% alkali solution, and use a colloid mill to crush the raw materials, and after crushing, the rice milk is then ultrafinely crushed by an ultrafine pulverizer;

[0037] (2) rice milk reaction: stirring the rice milk obtained in step (1) for 6 hours;

[0038] (3) The first oxidative degradation of pesticide residues and toxins: adjust the pH of the rice milk obtained in step (2) to 12, add sodium hypochlorite and chlorine dioxide, the molar ratio of the two is (1:5), and make the available chlorine concentration 50ppm , and stirred for 30min;

[0039] (4) centrifugation: the rice milk obtained in step (3) is centrifuged in a centrifuge, and the light phase obtained is protein liquid, and the heavy phase is starch;

[0040] (5) Oxidative degradation of pesticide residue toxins for the second time: adjust the pH of the protein solution obtained in step (4) to 8, add hydrogen peroxid...

Embodiment 2

[0050] (1) Raw material pulverization: the ratio of rice to water to liquid is 1:6 (g / L), soaked in 0.1% alkali solution, and use a colloid mill to pulverize the raw materials.

[0051] (2) rice milk reaction: stirring the rice milk obtained in step (1) for 6 hours;

[0052] (3) The first oxidative degradation of pesticide residues and toxins: adjust the pH of the rice milk obtained in step (2) to 10, add sodium hypochlorite and chlorine dioxide, the molar ratio of the two is (1:1), and the available chlorine concentration is 50ppm , and stirred for 30min;

[0053] (4) centrifugation: the rice milk obtained in step (3) is centrifuged in a centrifuge, and the light phase obtained is protein liquid, and the heavy phase is starch;

[0054] (5) Oxidative degradation of pesticide residue toxins for the second time: adjust the pH of the protein solution obtained in step (4) to 8, add hydrogen peroxide to make its mass concentration 1%, and stir for 30 minutes; add water to the star...

Embodiment 3

[0064] (1) Raw material crushing: the ratio of rice to water to liquid is 1:6 (g / L), soaked in 0.1% alkali solution, and use a colloid mill to crush the raw materials, and after crushing, the rice milk is then ultrafinely crushed by an ultrafine pulverizer;

[0065] (2) rice milk reaction: stirring the rice milk obtained in step (1) for 6 hours;

[0066] (3) The first oxidative degradation of pesticide residues and toxins: adjust the pH of the rice milk obtained in step (2) to 10, add sodium hypochlorite and chlorine dioxide, the molar ratio of the two is (1:5), and make the available chlorine concentration 30ppm , and stirred for 30min;

[0067] (4) centrifugation: the rice milk obtained in step (3) is centrifuged in a centrifuge, and the light phase obtained is protein liquid, and the heavy phase is starch;

[0068] (5) Oxidative degradation of pesticide residue toxins for the second time: adjust the pH of the protein solution obtained in step (4) to 8, add hydrogen peroxid...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for extracting edible rice starch and rice protein from broken rice with excessive pesticide residues. According to the method, pesticide residues such as isoprothiolane and hexaconazole and mycotoxins such as aflatoxin are oxidized and degraded into non-toxic substances through oxidizing agents such as sodium hypochlorite, chlorine dioxide and hydrogen peroxide, disulfide bonds of protein are opened at the same time, stable sulfonic acid groups with high solubility are formed, protein dissolution is increased, the yield is increased, residual protein in starch is reduced, and protein and starch products with better safety are obtained.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Owner JIANGNAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap