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Production method of antibacterial sucrose fatty acid esters

A technology of sucrose fatty acid ester and production method, which is applied in the direction of sugar derivatives, sugar derivatives, sugar derivatives preparation, etc., can solve the problems of no antibacterial effect, etc., and achieve the goal of broadening the antibacterial spectrum, increasing the reaction speed, and uniform reaction Effect

Inactive Publication Date: 2015-06-03
LIUZHOU CHANGYUAN FOOD INGREDIENTS SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] From the results of previous studies, it can be known that sucrose fatty acid esters have antibacterial effects on microorganisms only sucrose monoesters, while diesters, triesters, and polyesters have no antibacterial effects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 30 grams of methyl palmitate, 30 grams of methyl laurate, and 15 grams of methyl myristate into a 2-liter stainless steel reaction kettle equipped with a high-shear dispersing emulsification homogenizer, and heat it to 70-90°C with electricity , and add 50 grams of sucrose palmitate (HLB15) under stirring, and then add 10 grams of potassium carbonate. The temperature was raised to 130° C. while maintaining a vacuum of 700 Pa, and the reaction was carried out under high-speed emulsification for 120 minutes to obtain a crude sucrose ester. Cool the crude product to 90°C, use methyl ethyl ketone and water as solvents to refine the crude sucrose ester product to remove soap, sucrose and a small amount of residual catalyst, and dry the purified product under vacuum at 80°C for 3 hours to obtain a high-purity sucrose ester product , the yield was 67.5%. Through high-performance liquid chromatography analysis, its sucrose monoester content is 62.2%, and the sucrose total ...

Embodiment 2

[0026] Add 20 grams of methyl palmitate, 20 grams of methyl laurate, and 10 grams of methyl myristate into a 2-liter stainless steel reaction kettle equipped with a high-shear dispersion emulsification homogenizer, and heat it to 70-90 °C with electricity , and add 20 grams of sucrose palmitate (HLB16) under stirring, then add 18 grams of potassium carbonate, after stirring evenly, start the high-shear dispersing emulsifier with a rotating speed of 8000 rpm, finally add 350 grams of sucrose, and raise The temperature was raised to 120°C while maintaining a vacuum of 1000 Pa, and the reaction was carried out under high-speed emulsification for 150 minutes to obtain a crude sucrose ester. Cool the crude product to 90°C, use methyl ethyl ketone and water as solvents to refine the crude sucrose ester product to remove soap, sucrose and a small amount of residual catalyst, and dry the purified product under vacuum at 80°C for 3 hours to obtain a high-purity sucrose ester product , ...

Embodiment 3

[0028] Add 40 grams of methyl palmitate, 40 grams of methyl laurate, and 20 grams of methyl myristate into a 2-liter stainless steel reaction kettle equipped with a high-shear dispersing emulsification homogenizer, and heat it to 70-90°C with electricity , and add 80 grams of sucrose palmitate under stirring, then add 30 grams of potassium carbonate, after stirring evenly, start the high-shear dispersing emulsifier at a speed of 10,000 rpm, finally add 400 grams of sucrose, and raise the temperature to 125 ℃, while maintaining a vacuum of 750Pa, and reacting for 90 minutes under high-speed emulsification to obtain a crude product of sucrose ester. Cool the crude product to 90°C, use methyl ethyl ketone and water as solvents to refine the crude sucrose ester product to remove soap, sucrose and a small amount of residual catalyst, and dry the purified product under vacuum at 80°C for 3 hours to obtain a high-purity sucrose ester product , the yield was 58.5%. Through high-perfo...

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Abstract

The invention relates to a production method of antibacterial sucrose fatty acid esters. Three fatty acid methyl esters or fatty acid ethyl esters and sucrose used as raw materials react in a reaction kettle provided with a high-speed shearing / dispersion / emulsification homogenizer by using potassium carbonate as a catalyst and sucrose fatty acid esters as an emulsifier by a solventless process to obtain the antibacterial sucrose fatty acid esters. The material mixing is accelerated under the high-speed shearing / emulsifying effects of the high-speed shearing / dispersion / emulsification homogenizer to achieve the microemulsion state within a short time, so that the sucrose fatty acid ester synthetic system can react more uniformly and achieve the congruent melting state quickly, thereby increasing the reaction speed, shortening the reaction time and further effectively enhancing the conversion rate of the reaction product sucrose fatty acid esters and the contents of sucrose monoesters and total esters in the product.

Description

technical field [0001] The invention relates to a production method of antibacterial sucrose fatty acid ester, which belongs to the field of chemical industry. Background technique [0002] Sucrose fatty acid ester (referred to as sucrose ester) is a non-ionic surfactant with excellent performance and very safe. Approved food additive, it can be used as emulsifier, stabilizer, wetting agent, antibacterial agent in food, as fruit preservation agent, pesticide adjuvant and plant growth promoter in agriculture. Because sucrose esters are non-toxic and have a wide range of applications, their synthesis and application research has attracted much attention. [0003] At present, most of the industrial synthesis methods of sucrose esters adopt the transesterification method. Industrial ester synthesis of sucrose esters can be divided into two categories: solvent method and solvent-free method. Synthesis of sucrose esters by solvent-free method is non-toxic, short in time and low...

Claims

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Application Information

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IPC IPC(8): C07H13/06C07H1/00
Inventor 杜忠华覃栗黄维鸿陈凤珍荣月梅李敏捷
Owner LIUZHOU CHANGYUAN FOOD INGREDIENTS SCI & TECH CO LTD
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