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Phytosterol isostearate and preparation method thereof

A technology of isostearate and phytosterol, which is applied in the field of preparation of phytosterol isostearate and phytosterol isostearate, can solve the problems of poor product color, large amount of lipase, and high cost, and achieve The production technology is simple, the product color is good, and the conversion rate is high

Pending Publication Date: 2021-10-29
SHAANXI HEALTHFUL BIOLOGICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, CN 106632568A discloses a method of using p-toluenesulfonic acid to catalyze the synthesis of phytosterol esters, wherein p-toluenesulfonic acid is a strong acid catalyst, which is easy to induce the isomerization reaction of isostearic acid itself, so it is not conducive to the isomerization of phytosterols. Preparation of stearate
CN104177467A discloses a method of using nano-hydroxyapatite-loaded copper nitrate as a catalyst to synthesize phytosterol esters from phytosterols and fatty acids. This method requires esterification at high temperatures, resulting in poor product color. Technical defects such as further decolorization
[0004] Enzymatic synthesis of sterol esters is a method of using lipase to catalyze the synthesis of phytosterol esters. For example, CN101845473A discloses a method for catalyzing the synthesis of phytosterol esters using lipase derived from Candida in an organic solvent. The prepared product The purity is 92%. Although the synthesis process is relatively mild, the reaction time needs to be as long as 96 hours, and the amount of lipase is too large and the cost is too high, so it is not suitable for industrial application, and molecular distillation is also used in the subsequent separation. lead to poor color of the product

Method used

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  • Phytosterol isostearate and preparation method thereof
  • Phytosterol isostearate and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] Embodiment 1: Preparation of phytosterol isostearate

[0100] The implementation steps of this embodiment are as follows:

[0101] A. Prepare the mixture solution

[0102] According to the weight ratio of chitosan, phytosteryl isostearate and glacial acetic acid aqueous solution of 6:0.9:100, first mix chitosan and phytosterol isostearate evenly, and then add the concentration of 4% by weight The glacial acetic acid aqueous solution is heated and dissolved at a temperature of 55° C. to obtain a mixture solution;

[0103] B. Preparation of casting solution

[0104] Use the three-necked flask product sold under the trade name three-necked flask or beaker by Sanlihua Glass Factory as a reactor, add glutaraldehyde to the mixture solution obtained in step A according to the weight ratio of chitosan to glutaraldehyde 3:1.6 , heating at a temperature of 64°C for 23 hours of polymerization reaction, using suction filtration equipment sold by Shandong Longmei Industrial and M...

Embodiment 2

[0114] Embodiment 2: Preparation of phytosterol isostearate

[0115] The implementation steps of this embodiment are as follows:

[0116] A. Prepare the mixture solution

[0117] According to the weight ratio of chitosan, phytosteryl isostearate and glacial acetic acid aqueous solution of 6:0.8:80, first mix chitosan and phytosterol isostearate evenly, and then add the concentration of 2% by weight The glacial acetic acid aqueous solution is heated and dissolved at a temperature of 60° C. to obtain a mixture solution;

[0118] B. Preparation of casting solution

[0119] Use the three-necked flask product sold under the trade name three-necked flask or beaker by Sanlihua Glass Factory as a reactor, add glutaraldehyde to the mixture solution obtained in step A according to the weight ratio of chitosan to glutaraldehyde 3:1.0 , heating at a temperature of 70°C for 20 hours of polymerization reaction, using suction filtration equipment sold by Shandong Longmei Industrial and Mi...

Embodiment 3

[0129] Embodiment 3: Preparation of phytosterol isostearate

[0130] The implementation steps of this embodiment are as follows:

[0131] A. Prepare the mixture solution

[0132] According to the weight ratio of chitosan, phytosteryl isostearate and glacial acetic acid aqueous solution of 6:1.2:120, first mix chitosan and phytosterol isostearate evenly, and then add the concentration of 6% by weight The glacial acetic acid aqueous solution is heated and dissolved at a temperature of 65° C. to obtain a mixture solution;

[0133] B. Preparation of casting solution

[0134] Use the three-necked flask product sold under the trade name three-necked flask or beaker by Sanlihua Glass Factory as a reactor, add glutaraldehyde to the mixture solution obtained in step A according to the weight ratio of chitosan to glutaraldehyde 3:2.0 , heating at a temperature of 50°C for 28 hours of polymerization reaction, using suction filtration equipment sold by Shandong Longmei Industrial and M...

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Abstract

The invention relates to phytosterol isostearate and a preparation method thereof. The preparation method comprises the steps of preparation of a mixture solution, preparation of a membrane casting solution, coating, soaking, autocatalytic reaction of phytosterol isostearate, concentration of eluent and the like. Compared with the prior art, the preparation method of the phytosterol isostearate has the advantages of high conversion rate and simple production technology. The preparation method does not need high temperature, and the phytosterol isostearate molecularly imprinted membrane can specifically separate a product from a reaction system; and the purity of the product can reach 99.9% or above by weight, and the product is good in color and does not need to be decolored.

Description

【Technical field】 [0001] The invention belongs to the technical field of food and cosmetics. More specifically, the present invention relates to phytosterol isostearate, and also relates to the preparation method of said phytosterol isostearate. 【Background technique】 [0002] Phytosterol is a new resource food, which can inhibit the absorption of cholesterol in the human body. Long-term intake of phytosterols can prevent cardiovascular and cerebrovascular diseases. However, phytosterols are insoluble in water and oil, so it is difficult to be directly absorbed and utilized by the human body. Phytosterol esters formed by esterification of phytosterols and higher fatty acids have good oil solubility. Phytosterol isostearate has excellent moisturizing properties, can promote skin metabolism, increase skin elasticity, and it has good dispersibility for pigments, so it is a good cosmetic raw material, and is usually used in lipsticks, lipsticks, etc. in high-value cosmetics....

Claims

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Application Information

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IPC IPC(8): C07J9/00
CPCC07J9/00
Inventor 孟永宏胡永员郭建琦牛永洁杨璐
Owner SHAANXI HEALTHFUL BIOLOGICAL ENG
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