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

Desalination method of salted egg white

A salted egg white and desalination technology, applied in general water supply conservation, food preparation, food science and other directions, can solve problems such as unreported, and achieve the effect of effective industrial scaled production

Inactive Publication Date: 2013-03-06
HUAZHONG AGRI UNIV
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the electrodialysis method is applied to the food processing process such as soybean oligosaccharides and amino acid fermentation liquid, and the desalination rate can reach about 95%, and the desalination effect is good, but there is no report on the desalination of salted egg white using electrodialysis technology

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
  • Desalination method of salted egg white
  • Desalination method of salted egg white
  • Desalination method of salted egg white

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: The influence of membrane voltage on the salt rejection rate of salted egg white

[0039] In this embodiment, through the test groups 1-5, the voltages are set to 10V, 20V, 30V, 40V, and 50V respectively, so that the film pair voltages are respectively 0.25V, 0.50V, 0.75V, 1.00V, 1.25V, and keep The other conditions are the same, to study the influence of membrane on voltage on salted egg white desalination rate.

[0040] Test group 1:

[0041] 1) After the salted egg white waste liquid used in this experiment is allowed to stand for 1 hour in a low temperature environment of 4°C, it is filtered twice with 3 layers of gauze to remove the residual egg yolk and impurities on the surface of the salted egg white. The conductivity of the salted egg white is about 6500μS / cm , The pH is about 6.8;

[0042] 2) Dilute the salted egg white obtained in step 1) with tap water 10 times its volume, and measure its conductivity to be 1468μS / cm, then adjust the pH to 7 with sodium ...

Embodiment 2

[0054] Example 2: The influence of the flow rate of the thick chamber and the flow rate of the weak chamber on the salted egg white desalination rate

[0055] In this embodiment, through test groups 6-10, the flow rates of tap water in the thick chamber tank 2b and the salted egg white in the weak chamber tank 2c are respectively set to 20L / h, 30L / h, 40L / h, 50L / h, 60L / h, keep other conditions consistent, and study the influence of thick and light room flow on salted egg white desalination rate.

[0056] In test group 6-10, the test procedure is the same as test 1. Except for changing the voltage in step 5) to 30V so that the membrane voltage is maintained at 0.75V; changing the flow rate of the salted egg white in the light chamber tank 2c and the tap water in the thick chamber tank 2b in step 4), and set the flow rates to 20L / h respectively , 30L / h, 40L / h, 50L / h, 60L / h, keep other parameters and conditions unchanged. After the electrodialyzer was operated for 160 minutes, the el...

Embodiment 3

[0062] Example 3: The effect of the initial conductivity of the salted egg white in the blight room on the salt rejection rate of the salted egg white

[0063] In this example, through the test group 11-14, the pretreated salted egg white was diluted 5 times, 10 times, 15 times, and 20 times its volume respectively, and then used as a shallow room liquid. Keeping other conditions consistent, the study The influence of the initial conductivity of the salted egg white in the room on the salt rejection rate of the salted egg white.

[0064] In experiment group 11-14, the experiment procedure is the same as experiment 1. In addition to changing the voltage in step 5) to adjust the voltage to 30V, so that the membrane voltage is maintained at 0.75V; in step 2), the salted egg white obtained in step 1) is diluted with tap water, and the volume is diluted 5 times and 10 times respectively. , 15 times, 20 times (measured conductivity is 3075μS / cm, 1472μS / cm, 1221μS / cm, 946μS / cm), keep oth...

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 belongs to the technical field of egg product processing and particularly relates to a desalination method of salted egg white. The desalination method is characterized by adopting an electrodialysis method; and according to the desalination method, the salted egg white is used as a liquid in a thinned compartment of an electrodialyzer, running water is used as a liquid in a concentrated compartment of the electrodialyzer, a sodium chloride solution is used as a liquid in an electrode compartment of the thinned compartment, and the electrodialysis desalination operation is carried out with a certain flow rate and a certain temperature under a certain membrane pair voltage. According to the desalination method, in main operation parameters, the salted egg white in the thinned compartment serves a stock solution to be diluted by 2-50 times, the pH of the salted egg white is regulated to 3-11, and the concentration of the sodium chloride solution in the electrode compartment is 20-40g / L; the flow rate of the salted egg white in the thinned chamber is regulated to 30-80L / h, the flow rate of the running water in the concentrated compartment is regulated to 30-80L / h, and the flow rate of the sodium chloride solution in the electrode compartment is regulated to 30-50L / h; the membrane pair voltage of the electrodialyzer is regulated to 0.5-1.5V; and the working environment temperature of the electrodialyzer is regulated to 10-40 DEG C. Under preferable conditions, the desalination rate can reach more than 95%, and the loss ratio of egg-white proteins is below 10%. According to the desalination method, the salinity in the salted egg white can be effectively removed.

Description

Technical field [0001] The invention belongs to the technical field of egg processing, and specifically relates to a method for desalting salted egg whites. The present invention is related to electrodialysis. Background technique [0002] Egg white protein has a variety of unique functional properties, such as gelation, foaming, emulsification, heat denaturation, adhesion, water retention, etc., often used as food raw materials or ingredients for food processing, such as bread, biscuits, Pastries, pudding, etc. The chemical composition and composition mode of duck egg albumin are similar to egg albumin (the proteins in egg white mainly include ovalbumin (54%), ovotransferrin (12%), ovomucin (11%), and ovomucin (3.5%) and lysozyme (3.4%). These proteins are mainly albumin and globulin, which have high digestion and absorption rate and biological potency.) They all contain 8 essential amino acids required by the human body, especially It has more sulfur-containing amino acids a...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/32A23L1/015A23L15/00A23L5/20
CPCY02A20/124
Inventor 何慧董华伟赵宁宁
Owner HUAZHONG AGRI 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