A method for extracting sesamin from sesame oil

A technology of sesame oil and sesamin, applied in directions such as organic chemistry, bulk chemical production, etc., can solve problems such as affecting the reuse of sesame oil, sesame oil solvent residue, etc., and achieve the effects of best application value, stable process, and low cost

Active Publication Date: 2019-01-08
上海惠光环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of chemical solvents are required in the method, resulting in residual sesame oil solvents, affecting the reuse of sesame oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for extracting sesamin from sesame oil, comprising the following steps:

[0030] S1, adsorption step: take 734g of pressed-grade brown sesame oil in a 1000mL three-necked bottle, the content of sesamin in pressed-grade brown sesame oil is 0.62%, add 365g of 80-100 mesh silica gel for column chromatography, and stir at a speed that can flow through silica gel It is advisable that the sesamin in the silica gel adsorption sesame oil, after stirring for 1hr, then filter to obtain the brown sesame oil filtrate, the sesamin content of the brown sesame oil filtrate is 0.03%, the silica gel adsorption rate is 95.2%, and the oily silica gel filter cake obtains 550g, calculates the silica gel filter The oil content of the cake is about 185g;

[0031] S2, oil washing step: adding the oily silica gel filter cake to a 1L supercritical extraction kettle, controlling the temperature of the supercritical extraction kettle to be 45°C and the pressure to be 30MPa; the temperatur...

Embodiment 2

[0037] S1, adsorption step: Take 742g of pressed-grade brown sesame oil (containing sesamin: 0.62% pure) in a 1000mL three-necked flask, add 100g of 80-100 mesh silica gel for column chromatography, stir for 1hr, and filter to obtain the brown sesame oil filtrate, the content of sesamin is 0.41%, the silica gel adsorption rate is 33.9%, and the oily silica gel filter cake obtains 149g, and the calculated oil content of the silica gel filter cake is 49g;

[0038] The oil washing step, desorption step, deoiling step, recrystallization step and refining step refer to Example 1.

Embodiment 3

[0040] S1, adsorption step: Take 100g of pressed-grade brown sesame oil (containing sesamin: 0.62% pure) in a 250mL three-necked flask, add 100g of 80-100 mesh silica gel for column chromatography, stir for 1 hr, and filter to obtain a nearly colorless sesame oil filtrate, sesame The element content is 0.00%, the silica gel adsorption rate is 100%, and the oily silica gel filter cake obtains 153g, and the oil content of the silica gel filter cake is calculated to be 53g;

[0041] The oil washing step, desorption step, deoiling step, recrystallization step and refining step refer to Example 1.

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PUM

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Abstract

The invention discloses a method used for extracting sesamin from sesame oil. The method comprises steps of adsorption, scrubbing oil, desorption, de-oiling, recrystallization, and refining. The method is capable of ensuring high sesamin recovery rate; operation is simple; the method is safe and economical; technology is stable; high purity sesamin can be obtained; and the commercial value of sesame oil is not influenced.

Description

technical field [0001] The invention belongs to the technical field of biological extraction, and relates to a method for extracting sesamin from sesame oil. Background technique [0002] Sesamin was mainly used as a synergist for pyrethrins in the early days. With the development of science and technology, in-depth research on sesamin, high-purity sesamin is gradually applied in health food and medicine. In recent years, clinical studies have found that sesamin has antihypertensive and cardiovascular diseases, liver protection, anti Oxidation, anti-cancer, lower cholesterol and other effects. It has a wide range of uses in medicine, health care products, cosmetic raw materials and food additives. [0003] Due to the pharmacological action and biological activity of sesamin, at present, there are a large number of patents and literature reports on the preparation method of sesamin. The disclosed methods are roughly divided into the following types: vacuum distillation crys...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D493/04
CPCC07D493/04Y02P20/54
Inventor 徐斌许学强陈旭琪
Owner 上海惠光环境科技有限公司
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