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Method for preparing alpha-linolenic acid based on urea envelope method of molecular distillation

A molecular distillation, linolenic acid technology, applied in the separation/purification of carboxylic acid compounds, organic chemistry, etc., to achieve the effect of reducing pollution, high content, and preventing double bonds from being oxidized

Inactive Publication Date: 2013-06-05
HENAN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

For the purification of α-linolenic acid, the single use of urea envelope method or β-cyclodextrin inclusion method accounts for the majority, and there are few reports on the purification process of molecular distillation, especially the combination of molecular distillation and urea envelope method. , there is no literature report

Method used

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Embodiment Construction

[0024] Below in conjunction with specific embodiment, the present invention will be further described:

[0025] The materials used in the present invention are: perilla oil (commercially available); lipase (Guangzhou Mingyuan Company); potassium hydroxide solution; petroleum ether (boiling range 60-90°C, Kaifeng Chemical Reagent General Factory); ethanol (95 %, Tianjin Fuchen Chemical Reagent Factory); anhydrous sodium sulfate (Tianjin Kemiou Chemical Reagent Co., Ltd.); urea (analytical grade, Luoyang Chemical Reagent Factory); boron trifluoride ether (Sinopharm Chemical Reagent Co., Ltd. ); methanol (analytical grade, Luoyang Chemical Reagent Factory); n-heptane (Tianjin Kemiou Chemical Reagent Co., Ltd); sodium chloride (analytical grade, Suzhou Chemical Reagent Factory).

[0026] The equipment used in the present invention includes: water bath constant temperature oscillator SHA-C (Jintan Huafeng Instrument Co., Ltd.); low temperature constant temperature reaction bath DF-...

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Abstract

The invention discloses a method for extracting purified alpha-linolenic acid by combining molecular distillation and a urea envelope method with perilla oil as raw materials and belongs to the technical field of profound processing and comprehensive utilization of fat. The method includes that the perilla oil on the market is used as raw materials, lipase is added for hydrolysis to obtain fatty acid mixture, the fatty acid mixture is initially purified through the molecular distillation technology, further purification is conducted through the urea envelope method, and alpha-linolenic acid products are obtained through operations such as petroleum ether extraction and reduced pressure distillation. In areas of north China, central China, northwest and the like, oil resources rich in polyunsaturated fatty acid are abundant, the method is applied to profound processing of the oil resources, not only good polyunsaturated fatty acid products can be provided, and simultaneously economicaladditional value of the oil crop is improved.

Description

technical field [0001] The invention relates to the field of oil processing, in particular to a method for preparing and purifying alpha-linolenic acid based on a molecular distillation-based urea enveloping method. Background technique [0002] One of the important plant raw materials of α-linolenic acid (α-LNA) is perilla. There are two types of perilla perilla and white perilla. It is the species with the highest α-linolenic acid content among known plants. The oil content is 45% to 50%, of which the α-linolenic acid content is about 60%. Experiments have shown that α-linolenic acid has many physiological functions. For example: protect the heart and liver, prevent cardiovascular and cerebrovascular diseases, improve memory, delay aging, prevent stroke, enhance reproductive ability, etc. Therefore, the extraction and purification of α-linolenic acid can lay the foundation for the activity research and application of α-linolenic acid. [0003] α-linolenic acid is a stra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P7/64C07C57/12C07C51/44C07C51/42
Inventor 金华丽张华军李雪琴许春江韩小贤渠春玲卫敏谷克仁
Owner HENAN UNIVERSITY OF TECHNOLOGY
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