Method for preparing phytosterol ester

A technology for phytosterol ester and phytosterol, which is applied in the field of preparation of phytosterol ester, can solve the problems of high equipment requirements, low catalytic efficiency, poor safety and the like, and achieves the effects of low production equipment requirements, good selectivity and low cost

Inactive Publication Date: 2011-03-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the existing synthetic methods have shortcomings such as large pollution, high cost, poor safety, low catalytic efficiency, and high requirements for equipment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh mixed phytosterol 8g, stearic acid 5.6g in 150mL three-necked flask, add solid acid catalyst SO 4 2- / SiO 2 -TiO 2 In the above-mentioned three-necked flask, the addition amount is 0.1% of the mass of the reaction raw material, i.e. 0.0136g. Nitrogen gas is passed into the three-necked flask, a reflux condensation device is added, and 13g of n-butyl acetate with water is added, and the reaction is carried out in a water bath at 120°C for 8 After 1 hour, the reaction was stopped, the catalyst was removed by filtration, and the reaction solution was deacidified and separated to obtain phytosterol stearate with a purity of 97%.

Embodiment 2

[0021] Take by weighing β-sitosterol 8g, oleic acid 14g in 150mL there-necked flask, add solid acid catalyst Zr(SO 4 ) 2 / AC in the above-mentioned three-necked flask, the addition amount is 2% of the mass of the reaction raw material, that is, 0.44g, nitrogen gas is passed into the three-necked flask, a reflux condensing device is added, 11g of n-butyl acetate with water agent is added, and the mixture is placed in a water bath at 80°C After reacting for 60 hours, the reaction was stopped, the catalyst was removed by filtration, and the reaction solution was deacidified and separated to obtain phytosterol oleate with a purity of 92%.

Embodiment 3

[0023] Weigh 8g of β-sitosterol, take 20g of mixed fatty acids in a 150mL three-necked flask, add solid acid catalyst SnCl 4 / OMS-2 in the above-mentioned three-necked flask, the addition amount is 5% of the mass of the reaction raw material, that is, 1.4g, nitrogen gas is passed into the three-necked flask, a reflux condensing device is added, and 56g of water-carrying agent n-butyl acetate is added, at 100°C After reacting in a water bath for 72 hours, the reaction is stopped, the catalyst is removed by filtration, and the reaction solution is deacidified and separated to obtain a phytosterol fatty acid ester with a purity of 90%.

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PUM

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Abstract

The invention discloses a method for preparing phytosterol ester and belongs to the technical field of food, medicine, cosmetics and the like. The method comprises the following steps of: adding phytosterol and fatty acid into a three-neck flask provided with a reflux condensing device, adding a catalyst and a water-carrying agent, introducing nitrogen serving as shielding gas, and reacting at the temperature of between 80 and 120 DEG C for 8 to 72 hours to synthesize the high-purity phytosterol ester (the purity is over 90 percent). The synthesis process is simple and pollution-free, and equipment is not corroded, and after the reaction is completed, the catalyst is easy to separate and can be recycled repeatedly. A synthesized phytosterol ester product can be taken as a food additive, a functional food ingredient, a clinical medicament and a skin care product to be widely applied in the fields of food, medicine, cosmetics and the like.

Description

technical field [0001] The invention relates to a method for preparing phytosterol esters, in particular to a simple, efficient and pollution-free method for synthesizing high-purity phytosterol esters, which belongs to the technical fields of food, medicine and cosmetics. Background technique [0002] Phytosterols, also known as plant sterols, are active ingredients widely found in various vegetable oils, nuts and plant seeds. Phytosterol is a natural food additive with many excellent physiological functions. A large number of studies have shown that phytosterols in the diet can effectively reduce the absorption of cholesterol. In addition, phytosterols have good anti-oxidation and anti-corruption effects; they have a certain inhibitory effect on the occurrence and development of certain cancers in the body. It can exhibit certain hormone-like activity; phytosterols can anti-inflammatory and antipyretic, prevent and treat prostate diseases, skin care and beauty, and promot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07J75/00C07J9/00B01J27/053B01J29/03
Inventor 江波缪铭张涛刘虹蕾
Owner JIANGNAN UNIV
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