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Method for improving moisture retention of polyglycerol fatty acid ester

A technology of fatty acid esters and polyglycerol, which is applied in the field of fine chemistry, can solve the problems of many branched chain structures and ring structures, reducing the moisturizing performance of polyglycerol, and the dispersion of polyglycerol polymerization degree, so as to improve the moisturizing performance and facilitate large-scale Industrial production, the effect of low production cost

Pending Publication Date: 2021-07-13
郑州大河食品科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the industrial production of polyglycerol fatty acid esters, since the polymerization reaction of glycerol is involved, although the reaction temperature has a linear relationship proportional to the degree of polymerization, when the temperature is increased, the side reactions also increase simultaneously, and the obtained polyglycerol often has a polymerization reaction. Relatively dispersed degree, many branched chain structures and ring structures, heavy odor and color, etc. More importantly, because the polyglycerol structure in polyglycerol fatty acid ester has many hydrophilic hydroxyl groups, the above-mentioned side reactions Significantly reduces the moisturizing properties of polyglycerol

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of polyglycerol fatty acid ester, comprising the following steps:

[0028] (1) Add glycerin to the reaction kettle, start stirring, heat to 130°C under the condition of vacuum degree of 0.02MPa, then add alumina-loaded solid alkali catalyst containing SnCl2, continue to heat up to 200°C, and keep warm for 1 hour. Get mixed polyglycerol;

[0029] (2) Add the mixed polyglycerol to the cooling tank, start stirring, cool down to 160°C, filter and add to the storage tank, and then add molecular distillation equipment for molecular distillation. The temperature of molecular distillation is 180°C, and the vacuum degree of molecular distillation is 5Pa. Collect the distilled polyglycerol;

[0030] (3) The polyglycerin evaporated in step (2) is mixed and stirred with the polyglycerol fatty acid ester emulsifier; the polyglycerol fatty acid ester emulsifier is S-Face L-1001, and its weight is 0.05% of the polyglycerol.

[0031] (4) According to stearic acid...

Embodiment 2

[0033] (1) Add glycerin to the reaction kettle, start stirring, heat to 140°C under the condition of vacuum degree of 0.04MPa, then add alumina-loaded solid alkali catalyst containing SnCl2, continue to heat up to 230°C, and keep warm for 2 hours. Get mixed polyglycerol;

[0034] (2) Add the mixed polyglycerol to the cooling tank, start stirring, cool down to 160°C, filter and add to the storage tank, and then add molecular distillation equipment for molecular distillation. The temperature of molecular distillation is 180°C, and the vacuum degree of molecular distillation is 5Pa. Collect the distilled polyglycerol;

[0035] (3) The polyglycerol steamed out in step (2) is mixed and stirred with the polyglycerol fatty acid ester emulsifier; the polyglycerol fatty acid ester emulsifier is S-Face M-1001, and its weight is 0.07% of the polyglycerol.

[0036] (4) According to stearic acid: polyglycerol (molar ratio)=1.2:1, stearic acid is heated to 105 ℃, after stearic acid is comp...

Embodiment 3

[0038] A preparation method of polyglycerol fatty acid ester, comprising the following steps:

[0039] (1) Add glycerin to the reaction kettle, start stirring, heat to 160°C under the condition of vacuum degree of 0.06MPa, then add alumina-loaded solid alkali catalyst containing SnCl2, continue to heat up to 250°C, and keep the temperature for 5 hours. Get mixed polyglycerol;

[0040] (2) Add the mixed polyglycerol to the cooling tank, start stirring, cool down to 160°C, filter and add to the storage tank, and then add molecular distillation equipment for molecular distillation. The temperature of molecular distillation is 180°C, and the vacuum degree of molecular distillation is 5Pa. Collect the distilled polyglycerol;

[0041] (3) The polyglycerol steamed out in step (2) is mixed and stirred with the polyglycerol fatty acid ester emulsifier; the polyglycerol fatty acid ester emulsifier is S-Face M-1001, and its weight is 0.1% of the polyglycerol.

[0042] (4) Add the stear...

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Abstract

The invention provides a method for improving moisture retention of polyglycerol fatty acid ester. The preparation method comprises the following steps: firstly, carrying out polymerization reaction on glycerol under the catalysis of a solid base catalyst to prepare mixed polyglycerol, then carrying out purification treatment on the mixed polyglycerol by adopting molecular distillation, and introducing a polyglycerol fatty acid ester emulsifier after purification to obtain the polyglycerol with improved moisturizing performance; and carrying out esterification reaction on the polyglycerol and liquid fatty acid to prepare the polyglycerol fatty acid ester. The polyglycerol obtained by the preparation method is concentrated in polymerization degree and appropriate in smell and color, and the moisturizing performance is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of fine chemistry and relates to a method for improving the moisturizing performance of polyglycerol fatty acid ester. Background technique [0002] Food emulsifiers are the most widely used food additives in the food industry, among which the amount of polyglycerin fatty acid esters ranks second. Polyglyceryl fatty acid ester is a new type of food emulsifier and non-ionic surfactant with high efficiency and excellent performance. Due to the difference in the degree of polymerization of glycerol and the type of fatty acid, a series of polyglyceryl fatty acid ester products can be prepared. The distribution of HLB values. [0003] These polyglycerol fatty acid ester products have good emulsification, dispersion, wetting, stability and other properties, and can be decomposed in the process of human metabolism, with high safety, so they are widely used in food processing, pharmaceutical products, daily Used i...

Claims

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Application Information

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IPC IPC(8): C08G65/332C07C67/08C07C69/30A23L29/10
CPCC08G65/3322A23L29/10C07C67/08C07C69/30
Inventor 王小伟陈旭中孙东弦李金启孟凡芝薛纯李亚琴孙守锋程应伍
Owner 郑州大河食品科技有限公司
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