Extraction method for alpha-linolenic acid and preparation

An extraction method and technology for linolenic acid, applied in the field of alpha-linolenic acid preparation, can solve the problems of inability to separate, restrict the extraction purity of alpha-linolenic acid, etc., and achieve the effects of improving extraction purity, improving human health, and reducing the number of people

Inactive Publication Date: 2007-10-24
迪庆香格里拉舒达有机食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current α-linolenic acid extraction method cannot separate the unsaturated fatty acids containing linoleic acid in walnut oil, which restricts the extraction purity of α-linolenic acid

Method used

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  • Extraction method for alpha-linolenic acid and preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The extraction method of α-linolenic acid of the present invention comprises walnut oil saponification, enveloping agent enveloping, and its steps are as follows:

[0023] a. Saponification of walnut oil with caustic soda at 15° C. to obtain mixed fatty acids of walnut oil, adding sulfuric acid, and acidolysis at 50° C. to obtain mixed fatty acids of walnut oil, which are used as α-linolenic acid separation raw materials after elution and filtration;

[0024] b. The walnut oil mixed fatty acid is fully mixed with the enveloping agent and solvent at 50°C, the temperature of the mixed solution is lowered from 50°C to 20°C, and the mixed solution is lowered from 20°C to -5°C within 11 hours to precipitate Crystallization, and then filtration to obtain saturated fatty acid crystals and unsaturated fatty acid liquids, saturated fatty acid crystals are dissolved and washed by heating to obtain mixed fatty acids containing 80% saturated fatty acids;

[0025] c. Add the unsatur...

Embodiment 2

[0030] According to the method of Example 1, the ethyl α-linolenic acid with a purity of more than 95% was shot, and a tablet was prepared by a conventional tablet production process.

Embodiment 3

[0032] The extraction method of α-linolenic acid of the present invention, its steps are as follows:

[0033] a. Saponification of walnut oil with caustic soda at 80°C to obtain mixed fatty acids of walnut oil, adding sulfuric acid, and acidolysis at 55°C to obtain mixed fatty acids of walnut oil, which are used as α-linolenic acid separation raw materials after elution and filtration;

[0034] b. The walnut oil mixed fatty acid is fully mixed with the enveloping agent and solvent at 50°C, the temperature of the mixed solution is quickly reduced from 50°C to 20°C, and the mixed solution is reduced from 20°C within 5 hours Lower the temperature to -5°C to precipitate crystals, and then filter to obtain saturated fatty acid crystals and unsaturated fatty acid liquids. The saturated fatty acid crystals are heated to dissolve and washed to obtain mixed fatty acids containing 80% saturated fatty acids. ;

[0035] c. Add the unsaturated fatty acid containing α-linolenic acid, and t...

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Abstract

The invention relates to a method for extracting alpha-linolenic acid from walnut oil and alpha-linolenic acid preparation, comprising following steps: a. saponifying walnut oil and getting walnut oil mixed aliphatic acid, adding sulfuric acid for acid hydrolysis and getting walnut oil mixed aliphatic acid, washing and filtering and getting alpha-linolenic acid separation raw material; b. mixing walnut oil mixed aliphatic acid with enveloping agent and solvent at 50 Deg. C, getting mixed aliphatic acid of unsaturated and saturated aliphatic acid of alpha-linolenic acid; c. mixing alpha-linolenic acid-containing unsaturated aliphatic acid with enveloping agent again thoroughly, getting coarse alpha-linolenic acid ester liquid with alpha-linolenic acid content being above 70%, and unsaturated aliphatic acid crystal with linolic acid content being above 80%; d. extracting coarse alpha-linolenic acid ester liquid and getting alpha-linolenic acid ester with purity being above 85%; e. distilling said alpha-linolenic acid ester and getting alpha-linolenic acid ester liquid with alpha-linolenic acid content being above 95%.

Description

technical field [0001] The present invention relates to a method for extracting alpha-linolenic acid from walnut oil and a preparation of this alpha-linolenic acid. Background technique [0002] In recent years, with people's emphasis on health and the improvement of quality of life, the research and understanding of α-linolenic acid has gradually deepened. Studies have found that α-linolenic acid can regulate the immune system, and has the function of lowering blood fat and blood viscosity. , is an essential fatty acid for the human body. Since the human body cannot produce this substance by itself, it is also difficult to obtain it from the usual diet, resulting in a general lack of α-linolenic acid. The content of α-linolenic acid C18:3 in crude wild walnut oil, essential oil wild walnut oil and pure raw wild walnut oil were 16.09, 12.41 and 14.88, respectively. However, the current α-linolenic acid extraction method cannot separate the unsaturated fatty acids containin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/28A61K31/202A61P3/06A61P37/02A23L33/12
Inventor 和明生杨敏李继春和蕊和薇
Owner 迪庆香格里拉舒达有机食品有限公司
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