Preparation method of phytosterol stearate

A technology of phytosterol stearate and sterol stearate, which is applied in the preparation of steroids, fatty acid esterification, chemical instruments and methods, etc., can solve the problems of inhibiting the biological activity of phytosterols, and achieve good industrialization. Sexuality, good fat solubility, and simple process

Inactive Publication Date: 2012-07-18
西安蓝天生物工程有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The phytosterol stearate prepared by the method has good fat solubility, which solves the problem of inhibiting the biological activity of phytosterols due to limited solubility

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1. Preparation of unsaturated fatty acid methyl ester: use a reactor equipped with a condensation reflux device, add linseed oil, methanol and catalyst sodium methoxide into the reactor, and carry out alcoholysis reaction at a temperature of 65°C for 5 hours. During the hydrolysis reaction, the condensing reflux device condenses the volatilized lower aliphatic alcohol and returns it to the reaction system; the product of the alcoholysis reaction is washed with water at a temperature of 50°C and then left to separate the water. Repeat the washing and stand to separate the water until the washing liquid For neutrality, distill off the remaining moisture in the washed product, then heat the distilled product to 70°C under the condition of a pressure not greater than 5000Pa and keep it warm until no bubbles are formed in the product, and continue heating to 150°C. Distillation obtains unsaturated fatty acid methyl ester and methyl stearate mainly based on α-linolenic ac...

Embodiment 2

[0040] Step 1. Preparation of unsaturated fatty acid methyl esters: use a reactor equipped with a condensing reflux device, add linseed oil, ethanol and catalyst sodium ethylate into the reactor, and carry out alcoholysis reaction at a temperature of 75°C for 2 hours. During the hydrolysis reaction, the condensing reflux device condenses the volatilized lower aliphatic alcohol and returns it to the reaction system; the product of the alcoholysis reaction is washed with water at a temperature of 80°C and then left to separate the water, and repeated washing and standing to separate the water until the washing liquid For neutrality, distill off the remaining moisture in the washed product, then heat the distilled product to 150°C under the condition of a pressure not greater than 5000Pa and keep it warm until no bubbles are formed in the product, and continue heating to 210°C. Distillation obtains unsaturated fatty acid methyl ester and stearic acid methyl ester mainly based on α...

Embodiment 3

[0051] Step 1. Preparation of unsaturated fatty acid methyl ester: use a reactor equipped with a condensing reflux device, add linseed oil, methanol and catalyst sodium methoxide into the reactor, and carry out alcoholysis reaction at a temperature of 70°C for 4 hours. During the hydrolysis reaction, the condensing reflux device condenses the volatilized lower aliphatic alcohol and returns it to the reaction system; the product of the alcoholysis reaction is washed with water at a temperature of 65°C and then left to separate the water, and repeated washing and standing to separate the water until the washing liquid For neutrality, distill off the remaining moisture in the washed product, then heat the distilled product to 100°C under the condition of a pressure not greater than 5000Pa and keep it warm until no bubbles are formed in the product, and continue heating to 180°C. Distillation obtains unsaturated fatty acid methyl ester and methyl stearate mainly based on α-linoleni...

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Abstract

The invention discloses a preparation method of phytosterol stearate, which comprises the steps of: (1) carrying out alcoholysis reaction on linseed oil and low-level fatty alcohol to prepare unsaturated fatty acid methyl ester and methyl stearate which main contain Alpha-linolenic acid; (2) carrying out ester exchange reaction on phytosterol, as well as the unsaturated fatty acid methyl ester and methyl stearate which mainly contain Alpha-linolenic acid, washing reaction products, filtering and recycling waste filter residues after standing and cooling and precipitating; and (3) adding fatty acid methyl ester into waste filter residues to prepare phytosterol stearate. According to the method, waste filter residues generated in preparation processes of unsaturated fatty acid and phytosterol stearate are used as raw materials, the process is simple, the operability is high, the industrialization feasibility is good, and important economic values and social values can be realized. The phytosterol stearate prepared by the invention has good fat soluble performance, and the problem that the biological activity of the phytosterol is restrained due to limited solubility can be solved.

Description

technical field [0001] The invention belongs to the technical field of preparation of phytosterol stearate, in particular to a preparation method of phytosterol stearate. Background technique [0002] Phytosterols have a strong anti-inflammatory effect on the human body. It can inhibit the body's absorption of harmful low-density cholesterol, and at the same time ensure the amount of beneficial high-density cholesterol necessary for the human body, thus reducing coronary atherosclerosis and other heart diseases. incidence of disease. Phytosterols are naturally occurring trace components in food and are widely distributed in plant foods. Phytosterols are included in the top ten functional nutritional ingredients recommended by the International Society of Nutrition in the future. In 1999, the US FDA approved that foods with phytosterols or phytosterol esters could use the "healthy" label, and so far FDA has approved such labels. There are only 12 food items. [0003] Altho...

Claims

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Application Information

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IPC IPC(8): C07J75/00C07J9/00C11C3/10
Inventor 于佑世强军锋王哲军黄伟强马芳
Owner 西安蓝天生物工程有限责任公司
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