Method for extracting nervonic acid from oil of Mono Maple by using technique of molecular distillation

A technology of molecular distillation and ingot maple, which is applied in the field of fatty acid preparation technology, can solve the problems of high acid value of the product, easy emulsification of the product after washing, and low product purity, and achieve the effect of high purity, easy operation, and low boiling point

Inactive Publication Date: 2007-12-26
陕西七彩生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for extracting nervous acid from maple ingot oil by molecular distillation technology, s

Method used

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  • Method for extracting nervonic acid from oil of Mono Maple by using technique of molecular distillation

Examples

Experimental program
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Effect test

Example Embodiment

[0026] Example 1:

[0027] (1) The preparation of Acer truncatum oil:

[0028] (1) Shelling: Controlling the moisture content of Acer truncatum seeds within the range of 8-12%, entering into a special shelling machine for Acer truncatum seeds for peeling treatment, and separating the shell kernels by winnowing to obtain Acer truncatum seeds.

[0029] (2) Oil extraction: The peeled and separated Acer truncatum kernels are subjected to moisture adjustment to control the moisture content in the range of 8-10%. The oil is extracted with a 90-type press, and the oil yield is over 85%.

[0030] (2) Preparation of ethyl nervate:

[0031] (1) Pretreatment: filter the crude oil of Acer truncatum to remove impurities, add a 5% sodium hydroxide solution at a concentration of 0.8% by weight of Acer truncatum oil, the reaction temperature is 50℃, the stirring speed is 40r / min, and the time is After the reaction is completed, the temperature is rapidly increased to 80°C at a rate of 1°C / hour af...

Example Embodiment

[0035] Example 2:

[0036] (1) Preparation of Acer truncatum oil: the same as in Example 1.

[0037] (2) Preparation of ethyl nervate:

[0038] (1) Pretreatment: Filter crude oil of Acer truncatum to remove impurities, add 4% sodium hydroxide solution at a concentration of 1.0% by weight of Acer truncatum oil, reaction temperature is 40℃, stirring speed is 30r / min, time is After 60 minutes, the reaction is completed and the temperature is increased to 80°C at a rate of 1°C / hour, and the temperature is kept standing for 6 hours to completely separate the soap nuggets, remove the oily feet, wash with water 3 times, and then remove the water.

[0039] (2) Ethylification: Mix 100 parts by weight of Acer truncatum oil, 50 parts by weight of absolute ethanol and 1.2 parts by weight of alkaline catalyst potassium hydroxide, and then perform esterification reaction, and react 2 at a temperature of 75°C After the reaction, wash 3 times with water to remove glycerin, alkali, and excess etha...

Example Embodiment

[0042] Example 3:

[0043] (1) Preparation of Acer truncatum oil: the same as in Example 1.

[0044] (2) Preparation of ethyl nervate:

[0045] (1) Pretreatment: Filter the crude oil of Acer truncatum to remove impurities, and add a 6% sodium hydroxide solution based on 0.5% of the weight of Acer truncatum oil by adding alkali. The reaction temperature is 30°C, the stirring speed is 60r / min, and the time is 60min, after the reaction is completed, the temperature is rapidly increased to 80°C at a rate of 1°C / hour, and the temperature is kept standing for 8 hours to completely separate the soap particles, remove the oily feet and wash twice with water, and then remove the water.

[0046] (2) Ethylification: Mix 100 parts by weight of Acer truncatum oil with 60 parts by weight of absolute ethanol and 1.5 parts by weight of alkaline catalyst potassium hydroxide, then perform esterification reaction, and react 3 at 80°C After the reaction, wash twice with water to remove glycerin, alka...

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Abstract

This invention relates to a method for extracting nervonic acid from Acer truncatum oil by molecular distillation. The method solves the problems of complex procedures, easy emulsification, high product acid value and low product purity faced by present technique. The method comprises: (1) preparing Acer truncatum oil; (2) performing deacidification treatment on Acer truncatum oil, removing oil foot, washing with water, and dehydrating; (3) mixing Acer truncatum oil, absolute ethanol and alkaline catalyst, esterifying, washing with water, and separating to obtain ethyl nervonate; (4) performing molecular distillation in different vacuum conditions and temperatures, and collecting the product.

Description

Technical field: [0001] The invention relates to the technical field of fatty acid preparation technology, in particular to a method for extracting nervous acid from ingot maple oil by molecular distillation technology. Background technique: [0002] Nervous acid, also known as sharkic acid, chemically named cis-15 tetradecenoic acid, is a long-chain unsaturated fatty acid, mainly present in human brain proteins, retina, sperm and nerve tissues in the form of glycosphingolipids and sphingomyelin middle. A large number of medicines have proved that nervous acid can restore the activity of brain cell terminals, promote the growth and development of nerve cells, and have certain curative effects on cardiovascular and cerebrovascular diseases and autoimmune deficiency diseases. Therefore, the extraction and application of nervonic acid is of great significance and value. The relevant introductions seen so far include extracting from seaweed plants, shark oil and shark brain, b...

Claims

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Application Information

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IPC IPC(8): C07C57/03C07C51/44
Inventor 罗永珠任玉馨王性炎
Owner 陕西七彩生物科技有限公司
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