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Method for removing glycidyl ester, 3-chloropropanediol and esters thereof from natural vitamin E and obtained product

A technology of natural vitamins and glycidyl esters, which is applied in the food field, can solve the problems of large oil loss, low content and weak specificity, and achieve the effects of small material loss, simple process and strong adsorption specificity.

Active Publication Date: 2022-05-20
SHAANXI HEALTHFUL BIOLOGICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to place the oil to be deodorized at 180-200°C, pretreat the oil with water vapor as the medium, and add a compound of activated clay and calcium polysilicate for adsorption. It is found that this method can significantly reduce the amount of corn The content of trichloropropanol ester and glycidyl ester in oil, palm oil and soybean oil, and its content is controlled to a lower standard (3-MCPD is less than 0.3, glycidyl ester <0.1), this method has no specificity for adsorption , large oil loss
[0005] Therefore, in view of the technical defects such as unclear adsorption mechanism, low specificity, and large material loss in the prior art, the inventor finally completed the present invention through a large number of experimental studies and analysis on the basis of summarizing the prior art.

Method used

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  • Method for removing glycidyl ester, 3-chloropropanediol and esters thereof from natural vitamin E and obtained product
  • Method for removing glycidyl ester, 3-chloropropanediol and esters thereof from natural vitamin E and obtained product
  • Method for removing glycidyl ester, 3-chloropropanediol and esters thereof from natural vitamin E and obtained product

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Experimental program
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Effect test

Embodiment 1

[0098] Embodiment 1: remove glycidyl ester and 3-chloropropanediol and its ester from natural vitamin E

[0099] The implementation steps of this embodiment are as follows:

[0100] A. Activated carbon acid treatment

[0101] According to the ratio of activated carbon in grams and dilute nitric acid aqueous solution in milliliters is 1:4, adding concentration is 3% dilute nitric acid aqueous solution by weight in the 60 mesh activated carbon sold by Shanghai Activated Carbon Factory Co., Ltd. under the trade name wood powder, Stir at a temperature of 24°C for 25 minutes, filter, and then repeat the treatment once in the same manner;

[0102] Then, according to the ratio of activated carbon in grams to concentrated nitric acid aqueous solution in milliliters is 1:3, add concentrated nitric acid aqueous solution with a concentration of 15% by weight to the activated carbon, stir at a temperature of 84°C for 40min, filter, and treat in this way The activated carbon is washed wi...

Embodiment 2

[0113] Embodiment 2: remove glycidyl ester and 3-chloropropanediol and its ester from natural vitamin E

[0114] The implementation steps of this embodiment are as follows:

[0115] A. Activated carbon acid treatment

[0116]According to the ratio of activated carbon in grams and dilute nitric acid aqueous solution in milliliters is 1:3, adding concentration is 1% dilute nitric acid aqueous solution by weight in the 80 mesh activated carbon sold by Shanghai Activated Carbon Factory Co., Ltd. under the trade name wood powder, Stir at a temperature of 20°C for 20 minutes, filter, and then repeat the treatment once in the same way;

[0117] Then, according to the ratio of activated carbon in grams to concentrated nitric acid aqueous solution in milliliters is 1:5, add concentrated nitric acid aqueous solution with a concentration of 10% by weight to the activated carbon, stir at a temperature of 80°C for 30 minutes, filter, and treat in this way The activated carbon is washed w...

Embodiment 3

[0128] Embodiment 3: remove glycidyl ester and 3-chloropropanediol and its ester from natural vitamin E

[0129] The implementation steps of this embodiment are as follows:

[0130] A. Activated carbon acid treatment

[0131] According to the ratio of activated carbon in grams and dilute nitric acid aqueous solution in milliliters is 1:4, adding concentration is 5% dilute nitric acid aqueous solution by weight in the 60 mesh activated carbon sold by Shanghai Activated Carbon Factory Co., Ltd. under the trade name wood powder, Stir at a temperature of 30°C for 30 minutes, filter, and then repeat the treatment once in the same way;

[0132] Then, according to the ratio of activated carbon in grams to concentrated nitric acid aqueous solution in milliliters is 1:4, add concentrated nitric acid aqueous solution with a concentration of 12% by weight to the activated carbon, stir at a temperature of 82°C for 60 minutes, filter, and treat in this way The activated carbon is washed ...

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Abstract

The invention relates to a method for removing natural vitamin E containing glycidyl ester, 3-chloropropanediol and esters thereof and a high-purity vitamin E product obtained by the method. The removal method comprises the steps of activated carbon acid treatment, activated carbon acylating chlorination, activated carbon amination, adsorption, separation and the like. The technical process is simple and easy to implement, no secondary pollution is caused to the natural vitamin E product, and compared with the used natural vitamin E raw material, the glycidyl ester content and the total content of 3-chloropropanediol and 3-chloropropanediol ester of the high-purity vitamin E product obtained through the method are reduced by 85% or above and 88% or above respectively.

Description

【Technical field】 [0001] The invention belongs to the technical field of food. More specifically, the present invention relates to a method for removing natural vitamin E containing glycidyl ester, 3-chloropropanediol and its ester, and the present invention relates to a high-purity vitamin E product obtained by the method. 【Background technique】 [0002] Glycidyl esters (Glycidyl esters, GEs), 3-Monochloropropane-1,2-diol, 3-MCPD) and 3-Monochloropropane-1,2-diol es ters, 3-MCPD ester) is a class of hazardous components generated from glycerides in the process of oil processing with the participation of chlorides. In recent years, the detection rate of 3-MCPD esters and GEs in oils and oil by-products has been above 80%. Lu Yuepeng et al. published a paper titled "Analysis and Research on the Content of Fatty Acid Chloropropanols in Edible Vegetable Oils in Some Provinces", "China Oils and fats”, 2015, 40(11), pp79-84, the detection rate of 3-MCPD ester in 491 batches of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/72B01J20/20B01J20/30C01B32/354C11B3/10A23D9/04
CPCC07D311/72B01J20/20B01J20/3085C01B32/354C11B3/10A23D9/04B01J2220/4806
Inventor 牛永洁郭建琦杨璐孟永宏张佳
Owner SHAANXI HEALTHFUL BIOLOGICAL ENG
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