Method for extracting ethyl linolenate from blackberry seed oil

A technology of ethyl linolenate and blackberry seeds, applied in the separation/purification of carboxylic acid esters, preparation of carboxylic acid esters, chemical instruments and methods, etc., can solve the problems of product efficacy loss, complicated process, solvent residue, etc., and achieve extraction Shorter time, simplified process flow, no harmful residue effect

Active Publication Date: 2015-04-01
HUAIHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When applied to the purification of linolenic acid, these methods have defects such as complex process, high cost, loss of product efficacy, and potential safety hazards such as solvent residues.

Method used

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  • Method for extracting ethyl linolenate from blackberry seed oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, a kind of method of extracting ethyl linolenate from blackberry seed oil, its steps are as follows:

[0018] (1) Mix blackberry seed oil, absolute ethanol, and sodium ethylate in a mass ratio of 1:0.6:0.01 and put them into an extraction kettle. Adjust the temperature of the extraction kettle to 45°C and the pressure to 25 Mpa, and react for 1.5 hours;

[0019] (2) Adjust the temperature of the extraction device to reach the set process parameters, where: the extraction temperature is 30°C, and the rectification temperature gradient is T 1 40℃, T 2 50℃, T 3 60℃, T 4 80°C;

[0020] (3) Adjust the pressure of the extraction device to reach the set process parameters, where the extraction pressure is 20MPa and the rectification pressure is 10MPa, and the extraction starts;

[0021] (4) Turn on the ultrasonic device at the same time, and the electric power of the ultrasonic wave generated in each liter of the extraction kettle is 200W; extract ethyl linole...

Embodiment 2

[0022] Embodiment 2, a kind of method for extracting ethyl linolenate from blackberry seed oil, its steps are as follows:

[0023] (1) Mix blackberry seed oil, absolute ethanol, and sodium ethylate in a mass ratio of 1:0.8:0.03 and put them into an extraction kettle, adjust the temperature of the extraction kettle to 55°C and the pressure to 35 Mpa, and react for 2.5 hours;

[0024] (2) Adjust the temperature of the extraction device to reach the set process parameters, where: the extraction temperature is 50°C, and the rectification temperature gradient is T 1 50℃, T 2 60℃, T 3 70℃, T 4 80°C;

[0025] (3) Adjust the pressure of the extraction device to reach the set process parameters, where the extraction pressure is 35MPa and the rectification pressure is 18Mpa, and the extraction starts;

[0026] (4) Turn on the ultrasonic device at the same time, and the electric power of the ultrasonic wave generated in each liter of the extraction kettle is 500W; extract ethyl linol...

Embodiment 3

[0027] Embodiment 3, a kind of method for extracting ethyl linolenate from blackberry seed oil, its steps are as follows:

[0028] (1) Mix blackberry seed oil, absolute ethanol, and sodium ethylate in a mass ratio of 1:0.7:0.02 and put them into an extraction kettle. Adjust the temperature of the extraction kettle to 50°C and the pressure to 30 Mpa, and react for 2 hours;

[0029] (2) Adjust the temperature of the extraction device to reach the set process parameters, where: the extraction temperature is 40°C, and the rectification temperature is set to T 1 45°C, T 2 55°C, T 3 70℃, T 4 85°C.

[0030] (3) Adjust the pressure of the extraction device to reach the set process parameters, where the extraction pressure is 30MPa and the rectification pressure is 14Mpa, and the extraction starts;

[0031] (4) Turn on the ultrasonic device at the same time, and the electric power of the ultrasonic wave generated in each liter of the extraction kettle is 350W; extract ethyl linolen...

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Abstract

The invention provides a method for extracting ethyl linolenate from blackberry seed oil. The method comprises the following steps: blackberry seed oil, absolute ethyl alcohol and sodium ethoxide are mixed in the mass ratio of 1: (0.6-0.8): (0.01-0.03) and added to an extraction kettle, the temperature and pressure of the extraction kettle are adjusted, and the mixture reacts; the temperature of the extraction kettle is adjusted to a set process parameter; the pressure of the extraction kettle is adjusted to a set process parameter, and extraction is started; meanwhile, an ultrasonic device is started, and ethyl linolenate is extracted from a sampling port of a distillation device. The method is reasonable in design and convenient to operate, blackberry seed oil is firstly subjected to ethyl esterification, then the traditional supercritical technology and a distillation technology are combined and used for direct extraction of ethyl linolenatefrom the blackberry seed oil, and ultrasonic waves are used for reinforcement in a purification process, so that not only is the technological process simplified, the extraction time is shortened, but also the purity of the obtained ethyl linolenate is high and can reach about 92% at the most, harmful residues are avoided, the activity is high, and foundation is laid for further extraction of linolenic acid oil.

Description

technical field [0001] The invention relates to a method for extracting active ingredients from plant seeds, in particular to a method for extracting ethyl linolenate from blackberry seed oil. Background technique [0002] Blackberry belongs to Rosaceae Rubus, is an important small berry fruit tree, and its seeds - blackberry seeds are rich in oil. Analysis shows that blackberry seed oil contains unsaturated fatty acids such as linoleic acid, linolenic acid and oleic acid. Among them, linolenic acid is the only essential fatty acid in omega-3 polyunsaturated fatty acids, which can only be taken from exogenous food. Its metabolism in the body can generate EPA and DHA, which are the core substances of life that maintain the evolution of the human brain, and have the effect of lowering blood lipids. , lowering cholesterol, lowering blood pressure, antithrombosis, preventing cancer and inhibiting tumor cell metastasis and other physiological health effects, with huge commercial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/587C07C67/08C07C67/54C07C67/58C07C67/48
CPCC07C67/08C07C67/48C07C67/54C07C67/58C07C69/587Y02P20/54
Inventor 刘云鹤周鸣谦林春梅
Owner HUAIHAI INST OF TECH
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