Polymerized ionic liquid-coated silica particle composite material and its preparation method and its application in removing carboxymethyllysine from brewed soy sauce

A technology for polymerizing ionic liquid and silicon dioxide, which is used in ion exchange, microsphere preparation, microcapsule preparation, etc., to achieve the effects of high removal efficiency, simple operation and low cost

Inactive Publication Date: 2018-10-09
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the selectivity and adsorption capacity of silica need to be further improved according to specific applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Mix 1.0 mL of 1-vinyl-3-methylimidazolium tetrafluoroborate, 120.0 mL of propanol, 6.0 mL of polyoxyethylene nonylphenyl ether (polymerization degree 20) and 10.0 mL of carbon dioxide with a particle size of 1 μm Silicon particles were mixed, ultrasonically dispersed for 10 minutes, heated to 76°C under nitrogen protection, reacted for 24 hours, cooled to room temperature, and centrifuged. The resulting precipitate was a polymeric ionic liquid-wrapped silica particle composite material.

[0026] 100 mL of brewed soy sauce was passed through a chromatographic column filled with 1 g of polymeric ionic liquid-coated silica particle composites, and the flow rate of brewed soy sauce was 35 mL / min at room temperature. Table 1 shows the concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after flowing through the polymeric ionic liquid-coated silica particle composite column.

[0027] Table 1 ...

Embodiment 2

[0031] Mix 3.0 mL of 1-vinyl-3-butylimidazolium tetrafluoroborate, 300.0 mL of propanol, 30.0 mL of polyoxyethylene nonylphenyl ether (polymerization degree: 20) and 10 mL of silica particles with a particle size of 10 μm Mix, ultrasonically disperse for 30 minutes, heat to 73°C under nitrogen protection, react for 36 hours, cool to room temperature, and centrifuge to obtain a precipitate that is a polymeric ionic liquid-coated silica particle composite material.

[0032] 100 mL of brewed soy sauce was passed through a chromatographic column filled with 2 g of polymeric ionic liquid-coated silica particle composites, and the flow rate of brewed soy sauce was 50 mL / min at room temperature. The concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after flowing through the polymeric ionic liquid-coated silica particle composite column are shown in Table 2.

[0033] Table 2

[0034]

[00...

Embodiment 3

[0037] Mix 2.0 mL of 1-vinyl-3-methylimidazole bistrifluoromethanesulfonimide salt, 210.0 mL of propanol, 18.0 mL of polyoxyethylene nonylphenyl ether (polymerization degree of 10) and 10.0 mL of 5μm silica particles were mixed, ultrasonically dispersed for 20 minutes, added, heated to 75°C under nitrogen protection, reacted for 36 hours, cooled to room temperature, centrifuged, and the resulting precipitate was a polymeric ionic liquid-coated silica particle composite material.

[0038] 100 mL of brewed soy sauce was passed through a chromatographic column filled with 3 g of polymeric ionic liquid-coated silica particle composites, and the flow rate of brewed soy sauce was 60 mL / min at room temperature. The concentration of carboxymethyllysine in brewed soy sauce and the removal rate (%) of carboxymethyllysine in brewed soy sauce before and after flowing through the chromatographic column of polymeric ionic liquid-coated silica particles are shown in Table 3.

[0039] table 3...

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Abstract

The invention discloses a silicon dioxide particle composite material coated with polymeric ionic liquid, a preparation method of the composite material and application of the composite material in removal of carboxy methyl lysine in fermented soy sauce, and belongs to the technical field of food safety and quality. The silicon dioxide particle composite material coated with the polymeric ionic liquid is prepared from silicon dioxide particles, polyethylene nonylphenol ether and propyl alcohol through an emulsion polymerization method. The preparation method comprises the specific steps that the silicon dioxide particles, polyethylene nonylphenol ether, functionalized ionic liquid containing vinyl and propyl alcohol are mixed and ultrasonically dispersed; the materials are heated to 70 DEG C to 76 DEG C under nitrogen protection, and reacting under stirring is conducted for 24 hours to 48 hours; the materials are cooled to room temperature, centrifugal separation is conducted, the collected solid phase is the silicon dioxide particle composite material coated with the polymeric ionic liquid, and the composite material is used for removing carboxy methyl lysine in the fermented soy sauce. The method is easy and convenient to operate, low in cost, simple in treatment technology and high in removal efficiency.

Description

technical field [0001] The invention belongs to the technical field of food safety and quality, and in particular relates to a polymerized ionic liquid-wrapped silicon dioxide particle composite material, a preparation method thereof and an application in removing carboxymethyllysine in brewed soy sauce. Background technique [0002] advanced glycation products (AGEs) S ) is a general term for a series of highly oxidized compounds produced by Maillard reactions in food or biological systems. In recent years, a large number of studies at home and abroad have confirmed that AGE S It has adverse effects on human health. After the human body ingests food containing AGEs, the AGEs in the food enter the body, resulting in an increase in the AGES content in the blood and body fluids, which will reduce the defense function of the human immune system and increase the risk of diabetes, kidney disease, and cardiovascular disease in the crowd. Risk of chronic diseases such as disease ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J13/02B01J20/26B01J20/30B01D15/08A23L27/50
CPCB01D15/08B01J13/02B01J20/103B01J20/22B01J20/262B01J2220/44
Inventor 安小宁许晓
Owner SOUTH CHINA UNIV OF TECH
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