Method for extracting nervonic acid from acer truncatum buge oil

A technology of nervous acid and Yuanbao maple, which is applied in the field of extraction of nervous acid, can solve the problems of complex chemical synthesis of nervous acid, the inability to realize industrialization, and the inability to mass produce, etc., and achieve simple and feasible operation, feasible process parameters, and low process cost Effect

Inactive Publication Date: 2006-05-24
陕西宝枫科技股份有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0004] Nervous acid has not yet been produced industrially. The chemical synthesis of nervous acid is complex and the yield is low, so it cannot be industrialized; it is extracted from shark oil and shark brain, which is limited by resources and cannot be mass-produced.

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  • Method for extracting nervonic acid from acer truncatum buge oil

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Embodiment Construction

[0012] Wash Yuanbao maple oil with water to remove some colloids in the oil, stir at 150rpm, the reaction medium is 20% KOH-EtOH, heat and reflux in a water bath at 80°C for 4h, add saturated saline and reflux for 2h until clarification; Set aside for 4 hours, separate the liquid to take the upper layer, wash it twice with 1:1, V / V salt water, continue to extract it twice with petroleum ether, 1:1, V / V, adjust the pH of the petroleum ether layer to 2-3 with 15% HCL; Continue to heat and reflux for 2 hours, and keep the acidity; after standing for liquid separation, wash the petroleum ether layer twice with water, evaporate the petroleum ether, wash the oil layer with water until the pH value is 6-7, and dry with anhydrous sodium sulfate to obtain mixed fatty acids; - The molar ratio of urea to alcohol is 1:15, mix the fatty acid and saturated urea alcohol solution, heat to reflux at 70°C until clarified, refrigerate at below 5°C for 8 hours, then freeze it at -10°C for 12 hours...

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Abstract

The invention relates to a method for extracting nervonic acid from Acer truncatum Bunge oil, comprising saponifying and low-temperature urea embedding course, normal-temperature vacuum distilling course, low-temperature freezing and step crystallizing course, fatty acid methylesterification and separation course and selectively weak absorbing and purifying course. As compared with the existing techniques, the invention has the following advantages: separating Acer truncatum Bunge oil as raw material to obtain the specially-long unsaturated fatty acid nervonic acid and obtain a series of coarse and fine nervonic acid products of different purities, and the purity of the fine nervonic acid products reaches 99% above. The invention has low processing cost, simple and easy to operate and able to realize industrialized production.

Description

technical field [0001] The invention relates to a method for extracting nervonic acid, in particular to a method for extracting nervonic acid from ingot maple oil. Background technique [0002] Nervonic Acid (NA), also known as Selacholeic Acid, chemical name cis-15-tetradecenoic acid, molecular formula CH 3 (CH 2 ) 7 CH=CH(CH 2 ) 13 COOH), molecular weight 366.6, white powdery solid. Nervous acid was first discovered in the nervous tissue of mammals, so it is named as nervonic acid. Nervous acid is high in nerve tissue and brain tissue, is an important component of biofilm, and is usually used as a marker of cerebroside lipids (white matter). [0003] As we all know, the lipids of the nervous system of the brain are composed of white matter and gray matter, and the deficiency or disease of any aspect will cause serious consequences. As a component of white matter, nervonic acid is a component of white matter, and its deficiency will lead to brain damage. Moreover, it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/42C07C57/03
Inventor 韩文毅杨彬
Owner 陕西宝枫科技股份有限公司
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