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Preparation method of sucrose fatty acid ester and milk beverage composition of sucrose fatty acid ester

The technology of sucrose fatty acid ester and fatty acid alkyl ester is applied to the preparation method of sucrose fatty acid ester and the field of milk beverage composition, which can solve the problem that sucrose is easy to decompose, difficult to prepare low-substitution sucrose fatty acid ester, and reaction system The problem of high viscosity can achieve the effect of simple operation steps, excellent emulsion stability and good product performance.

Active Publication Date: 2015-12-16
GUANGZHOU CARDLO BIOCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, Chinese patent application 201310321886.5, which discloses a method for preparing sucrose fatty acid ester, reacts sucrose and fatty acid methyl ester in the presence of a catalyst to generate a crude sucrose fatty acid ester, and obtains a relatively high-purity sucrose fatty acid ester by washing with water, etc. However, this method has the disadvantages that sucrose is easy to decompose, the viscosity of the reaction system is high, and it is difficult to prepare sucrose fatty acid ester with low substitution degree.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation of embodiment one sucrose fatty acid ester

[0023] Add 1000g sucrose, 15g potassium carbonate, 200g solvent mixture and 500g methyl stearate to the reactor, the solvent mixture is composed of dimethyl sulfoxide and methylene chloride at a volume ratio of 1:3, heated to reflux, and reacted for 2h Finally, the product mixture is obtained; add 500mL saturated sodium chloride solution to the product mixture, mix well, add citric acid to adjust the pH to 6.8, add isopropanol for extraction, let stand, separate the liquid, and take the organic phase; under the condition of 0.01Mpa, the The organic phase was concentrated under reduced pressure and evaporated to dryness to obtain 817 g of white sucrose fatty acid ester. The physical and chemical indicators of sucrose fatty acid esters are in line with the relevant requirements of GB8272-2009 "Food Additives Sucrose Fatty Ester".

[0024] Get 1g sucrose fatty acid ester therefrom and carry out column chromato...

Embodiment 2

[0025] The preparation of embodiment two sucrose fatty acid esters

[0026] In reactor, add 1000g sucrose, 10g potassium hydroxide, 200g solvent mixture and 500g methyl stearate, solvent mixture is made up of dimethylsulfoxide and dichloromethane with the volume ratio of 1:2, is heated to reflux, reacts After 2h, the product mixture was obtained; add 500mL saturated sodium chloride solution to the product mixture, mix well, add citric acid to adjust the pH to 7.2, add ethanol for extraction, let stand, separate the liquid, and take the organic phase; under the condition of 0.01Mpa, the organic The phase was concentrated under reduced pressure and evaporated to dryness to obtain 798 g of white sucrose fatty acid ester. The physical and chemical indicators of sucrose fatty acid esters are in line with the relevant requirements of GB8272-2009 "Food Additives Sucrose Fatty Ester".

Embodiment 3

[0027] The preparation of embodiment sucrose fatty acid ester

[0028] In reactor, add 1000g sucrose, 10g sodium hydroxide, 200g solvent mixture and 500g methyl stearate, solvent mixture is made up of dimethylsulfoxide and dichloromethane with the volume ratio of 1:4, is heated to reflux, reacts After 2h, the product mixture was obtained; add 500mL saturated sodium chloride solution to the product mixture, mix well, add citric acid to adjust the pH to 7.0, add ethanol for extraction, let stand, separate the liquid, and take the organic phase; under the condition of 0.01Mpa, the organic The phase was concentrated under reduced pressure and evaporated to dryness to obtain 803 g of white sucrose fatty acid ester. The physical and chemical indicators of sucrose fatty acid esters are in line with the relevant requirements of GB8272-2009 "Food Additives Sucrose Fatty Ester".

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Abstract

The invention provides a preparation method of sucrose fatty acid ester. The preparation method comprises the following steps: A) performing a reflux reaction of sucrose and alkyl ester in the presence of an alkali catalyst in a solvent mixture to produce a product mixture; B) adding a saturated sodium chloride solution to the product mixture, adjusting pH to 6.6-7.2, adding an alcohols extractant for extraction, and performing liquid separation to obtain an organic phase; and C) performing reduced-pressure concentration and evaporation to dryness to obtain sucrose fatty acid ester. The invention belongs to the technical field of industrial chemistry and provides the preparation method which is simple in steps and mild in reaction condition. High-purity low-substitution-degree sucrose fatty acid ester is prepared through the method and is good in performance. The environmental benefit is good.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a preparation method of sucrose fatty acid ester and a milk drink composition thereof. Background technique [0002] Sucrose fatty acid esters (SE) are made from sucrose Since sucrose contains 8 hydroxyl groups, the esterified sucrose fatty acid ester may contain various products from monoester to octaester according to different reaction conditions. Sucrose fatty acid esters have excellent surface activation properties and are widely used as additives in food, cosmetics and pharmaceuticals. Sucrose fatty acid esters with a low degree of substitution have a higher HLB value, that is, higher hydrophilicity, and have a wide range of applications in the food emulsifier market. [0003] The preparation methods of sucrose fatty acid ester mainly include solvent method and non-solvent method. [0004] 1. Solvent method: This method uses dimethylformamide, dimet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H13/06C07H1/00A23C9/152
Inventor 徐怀义
Owner GUANGZHOU CARDLO BIOCHEM TECH