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Method for removing glycidyl esters by using ionic liquid

A glycidyl ester and ionic liquid technology, which is applied in the direction of fat oil/fat refining and fat production, can solve the problems that do not conform to the direction of green chemistry advocacy, complex operation, etc., and achieve the effect of direct and efficient removal and easy separation

Pending Publication Date: 2021-07-16
WILMAR SHANGHAI BIOTECH RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses acid solution deodorization to suppress the formation of glycidyl ester at high temperature, but uses dual solid phase extraction and a large amount of organic solvent elution, the operation is complicated and does not meet the direction of green chemistry advocacy

Method used

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  • Method for removing glycidyl esters by using ionic liquid
  • Method for removing glycidyl esters by using ionic liquid
  • Method for removing glycidyl esters by using ionic liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0058] All the ionic liquids used in the examples were purchased from Shanghai Chengjie Chemical Co., Ltd., with a purity of over 98%.

[0059] Both refined palm oil and refined soybean oil were purchased from Yihai Kerry.

Embodiment 1

[0076] The experimental raw material oil used in this embodiment is the same as that of Comparative Example 1.

[0077] Take 17 parts of experimental raw oil, add 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 5.0%, 6.0%, 8.0% of the weight of raw oil to it at room temperature , 10.0%, 12.0%, 14.0%, 16.0%, 18.0% or 20.0% of the amount of ionic liquid 1-butylsulfonic acid-3-methylimidazolium bisulfate, namely [BSO 3 Hmim][HSO 4 ], through a high-speed shearing machine at 10,000r·min -1 After shearing for 3 minutes and mixing evenly, stir at 300rpm at 60°C for 1h, and then use a high-speed centrifuge at room temperature to -1 Centrifuge for 5 minutes, separate the oil phase and the ionic liquid phase, and take the upper oil phase to detect the content of glycidyl ester.

[0078]Glycidyl ester detection method refers to AOCS Cd 29c-13 (2017)

[0079]

Embodiment 2

[0081] The experimental raw material oil used in this embodiment is the same as that of Comparative Example 1.

[0082] Get 2 parts of experimental feedstock oils, add the ionic liquid N-sulfonic acid butylpyridinium bisulfate of 1% or 10% amount wherein to the feedstock oil weight at room temperature respectively, namely [BSO 3 HPy][HSO 4 ], through a high-speed shearing machine at 10,000r·min -1 Mix well by shearing for 3 minutes, then stir at 300rpm at 60°C for 1h, and then use a high-speed centrifuge at room temperature to -1 Centrifuge for 5 minutes, separate the oil phase and the ionic liquid phase, and take the upper oil phase to detect the content of glycidyl ester.

[0083] Glycidyl ester detection method refers to AOCS Cd 29c-13 (2017)

[0084]

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Abstract

The present application provides a method of reducing or removing glycidyl esters from a fluid material comprising the step of contacting the fluid material with one or more sulfonic acid functionalized ionic liquids or aqueous or alcoholic solutions thereof, with the proviso that the fluid material is immiscible with the sulfonic acid functionalized ionic liquid or aqueous or alcoholic solution thereof. The invention also provides an application of the sulfonic acid functionalized ionic liquid in removing glycidyl esters or reducing the content of glycidyl esters.

Description

technical field [0001] The present application relates to a method for removing glycidyl esters using ionic liquids, especially sulfonic acid functionalized ionic liquids and the use of sulfonic acid functionalized ionic liquids for removing glycidyl esters. Background technique [0002] In recent years, Glycidyl fatty acid esters (GEs) is a potential hazard factor that has attracted widespread attention in fatty foods. It has been found in refined edible oils, margarine, and infant formula. Glycidyl ester is composed of two parts, an epoxy group obtained by the dehydration condensation of two hydroxyl groups in glycerin and an ester group formed by esterifying the other hydroxyl group with a carboxylic acid such as a fatty acid. Glycidyl esters are usually produced during the refining of oils and fats. Glycidyl esters are also converted into glycidol in the body after being ingested by the human body, and glycidol is genotoxic and has been identified as a 2A carcinogen by ...

Claims

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Application Information

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IPC IPC(8): C11B3/00C11B3/16
CPCC11B3/001C11B3/16
Inventor 赵格格张海徐学兵郑妍
Owner WILMAR SHANGHAI BIOTECH RES & DEV CENT
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