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Preparation method of alpha-linolenic acid natural VE (Vitamin E) ester

A linolenic acid and natural technology, applied in the field of biochemistry, can solve the problems of large consumption of raw materials, low purification degree, pollution of the environment, etc., and achieve the effect of large raw material limitations, wide sources of raw materials, and simple recycling

Inactive Publication Date: 2014-06-04
余竹焕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the process described in this patent document has defects such as low purification degree, environmental pollution, use of dangerous drugs, large consumption of raw materials, low utilization rate, and high cost.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0038] Embodiment of the present invention is described below, and embodiment does not constitute limitation of the present invention:

[0039] Step 1: Preparation of lower fatty alcohol esters of α-linolenic acid by transesterification

[0040] 1) Add perilla oil or linseed oil to the reaction device equipped with a condensing reflux device, and at the same time add lower aliphatic alcohols with C atoms not exceeding 2. 0.2 to 1 times the mass, stir evenly;

[0041] 2) Add a catalyst to the above system, stir and heat up to 68-72°C, and react for 3-5 hours to obtain α-linolenic acid ester;

[0042] 3) The lower aliphatic alcohol is methanol or ethanol, the catalyst is the sodium or potassium base of the corresponding lower aliphatic alcohol, and the amount of the catalyst is 2-10% (mass fraction) of the total amount of linseed oil or perilla oil and the lower aliphatic alcohol.

[0043] 4) The concentration of lower fatty sodium alcoholate or lower fatty potassium alcoholat...

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Abstract

The invention relates to the field of biochemistry, and particularly relates to a preparation method of alpha-linolenic acid natural VE (Vitamin E) ester. The esterification is carried out by adopting linolenic acid and ethanol in the published patent, even if the process of the esterification is not particularly illuminated, the esterification as esterification reaction commonly takes concentrated sulfuric acid as a catalyst, and alpha-linolenic acid is more lost in the process of the esterification due to the extremely easy oxidizability of the alpha-linolenic acid; in contrast, the preparation method disclosed by the invention directly takes the flax oil and the perilla oil as raw materials and methanol or ethanol as a medium, adopts a two-step ester exchange technology, has the advantages of high reaction activity, easy preparation and the like, has great innovation due to adoption of a subsequent refining process and almost does not consume the alpha-linolenic acid contained in the raw materials, is high in raw material utilization ratio and low in cost. The yield of the product obtained through the method is more than 90% and the prepared product has the characteristics of high yield and high purity. The method disclosed by the invention is simple in process and can be put into the industrial production easily. According to the invention, a related process is not seen in a related data report.

Description

technical field [0001] The invention relates to the field of biochemistry, in particular to a preparation method of alpha-linolenic acid natural VE ester. Background technique [0002] Vitamin E (Vitamin E), also known as anti-sterility vitamin or tocopherol, is a fat-soluble vitamin. Natural vitamin E is widely distributed in animal and vegetable oils, egg yolks, milk, fruits, lettuce leaves and other foods, and is more abundant in soybean oil, sunflower oil, wheat germ oil, corn oil, peanut oil, and cottonseed oil. Vitamin E cannot be synthesized in the body, and the required vitamin E is obtained from food. Vitamin E is one of the most important antioxidants, which can promote the secretion of sex hormones, increase the vitality and quantity of sperm in men; increase the concentration of estrogen in women, improve fertility, prevent miscarriage, and can also be used to prevent male infertility, burns, frostbite , capillary bleeding, menopausal syndrome, beauty and so on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D311/72
CPCC07D311/72
Inventor 余竹焕
Owner 余竹焕