Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for reducing contents of lead and cadmium in soybean protein

A technology of soybean protein and soybean protein powder, which is applied in plant protein processing, food ingredients as pH modifiers, food adsorption, etc., can solve the problems of heavy metal enrichment, food safety impact, etc., and achieve the effect of mild operating conditions

Inactive Publication Date: 2017-02-22
NANCHANG UNIV
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The combination of lead, cadmium and soybean protein in the form of complexes leads to the accumulation of heavy metals in soybean protein, which affects its food safety

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 reducing contents of lead and cadmium in soybean protein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] (1) Take 100 kg of soybean protein powder, add 900 kg of drinking water, and mix well; (2) Adsorption reaction: slowly add 3mol / L sodium hydroxide to adjust the pH of the slurry to 9.8, and after the protein is completely dissolved, add 3.0 kg of insoluble Dietary fiber (the mass ratio of cellulose and lignin is 7:3, and the average particle size is 900 mesh), mixed well, kept at 50°C for 4.0 hours, during which the stirring speed was 4000 rpm; (3) solidified Liquid separation: carry out solid-liquid separation, remove insoluble solids, and replace chelation with the protein slurry; (4) replace chelation: add 250 grams of zinc chloride to the soybean protein slurry, stir for 30 minutes at 55 ° C, and the stirring speed is 3500 rpm (5) pH adjustment: adjust the pH of soybean protein to 6.4 within 10 minutes; (6) Sterilization, dehydration and drying: the slurry is sterilized, then dehydrated and dried to obtain soybean protein products.

Embodiment 2

[0019] (1) Take 100 kg of soybean protein powder, add 900 kg of drinking water, and mix well; (2) Adsorption reaction: slowly add 3mol / L sodium hydroxide to adjust the pH of the slurry to 9.8, and after the protein is completely dissolved, add 3.0 kg of insoluble Dietary fiber (the mass ratio of cellulose and lignin is 7:3, and the average particle size is 900 mesh), mixed well, kept at 50°C for 4.0 hours, during which the stirring speed was 4000 rpm; (3) solidified Liquid separation: solid-liquid separation to remove insoluble solids; (4) pH adjustment: adjust the pH of the soybean protein slurry to 6.4 within 10 minutes; (5) Sterilization, dehydration and drying: the slurry is sterilized, then dehydrated, Dry to obtain soybean protein product.

Embodiment 3

[0021] (1) Take 100 kg of soybean protein powder, add 900 kg of drinking water, and mix well; (2) Alkaline reaction: Slowly add 3 mol / L sodium hydroxide to adjust the pH of the slurry to 9.8, and after the protein is completely dissolved, mix it at 50°C Keep for 4.0 hours, stirring continuously during the period, the stirring speed is 4000 rpm; (3) adjust the pH: adjust the pH of the soybean protein slurry to 6.4 within 10 minutes;

[0022] (4) Sterilization, dehydration and drying: the slurry is sterilized, then dehydrated and dried to obtain soybean protein products.

[0023] Effect analysis of different embodiments:

[0024]

[0025] Note: The higher the score of sensory quality, the better the taste

[0026] Compared with Examples 2 and 3, the contents of lead and cadmium in Example 1 processed by the present invention were reduced to 0.148mg / kg and 0.035mg / kg respectively; unanimous.

[0027] After the present invention adopts insoluble dietary fiber with a particle...

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

PropertyMeasurementUnit
The average particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for reducing contents of lead and cadmium in soybean protein. The method disclosed by the invention comprises the following steps of taking soybean protein powder, performing an adsorption reaction, performing solid-liquid separation, performing substitution and chelating, adjusting pH, performing sterilization, performing dehydration, performing drying and the like. According to the technology disclosed by the invention, the contents of lead and cadmium in the soybean protein can be effectively and synchronously reduced, and besides, the sensory quality and the nutrient value of the soybean protein cannot be influenced.

Description

technical field [0001] The invention relates to a method for reducing the content of lead and cadmium in soybean protein, belonging to the field of agricultural product processing. Background technique [0002] Soybean protein has a good amino acid composition ratio and high digestibility. It is an excellent vegetable protein and has important utilization value. In recent years, with the development of industry and mining, the problem of soybean heavy metal pollution has gradually been exposed. Lead and cadmium combine with soybean protein in the form of complexes, resulting in the accumulation of heavy metals in soybean protein, which affects its food safety. [0003] Lead and cadmium can accumulate in living organisms and seriously endanger human health. The interaction between lead and biomolecules in the body will damage reproductive, nervous, digestive, immune, kidney, cardiovascular and other systems, affecting growth and development. After being absorbed by the hum...

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
IPC IPC(8): A23J3/16A23L5/20
CPCA23J3/16A23V2002/00A23V2200/214A23V2200/06A23V2250/056A23V2250/1614A23V2250/1642A23V2250/5108A23V2250/5116A23V2300/02A23V2250/1582A23V2250/5488
Inventor 钟业俊
Owner NANCHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com