Method for extracting sesamin from sesame oil

A technology of sesamin and sesame oil, applied in directions such as bulk chemical production, organic chemistry, etc., can solve problems such as high process cost, low sesamin yield, and complicated process, and achieve high separation efficiency, low extraction cost, and advanced technology. Effect

Active Publication Date: 2014-07-02
HENAN SESAME RES CENT HENAN ACADEMY OF AGRI SCI +1
View PDF3 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, sesamin can be extracted from sesame seeds, sesame oil, and sesame cakes. The extraction methods used mainly include solvent extraction, steam vacuum distillation, column adsorption, supercritical CO 2 Extraction and other methods, from the perspective of the overall technology development of sesamin extraction and purification at home and abroad, the current extraction of sesamin in sesame oil is still based on vacuum distillation, organic solvent extraction, and then concentration, recrystallization and other processes. Although such methods can obtain sesamin, there are complex processes in this type of process, the organic solvent is flammable and explosive,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Sesame oil removes water through one-stage scraping film evaporation, the vacuum degree of scraping film evaporation degassing is 10.0Pa, the evaporation temperature is 100.0°C, and the feeding speed is 45.0kg / 1h;

[0024] 2. The degassed sesame oil undergoes primary molecular distillation to separate the light components including sesamin. The molecular distillation vacuum degree is 10.0Pa, the evaporation temperature is 240.0°C, the condensation temperature is 60°C, the feed rate is 40.0kg / 1h, and the film is scraped The speed is 300r / min. As a result of the implementation, the isolate accounts for 3.0% of the raw material oil, and the transfer rate of sesamin reaches 72.0%. At the same time, high-quality sesame oil (accounting for 97.0% of the raw material oil) is obtained.

[0025] 3. After storing the light fraction after molecular distillation at 4°C for 24 hours, centrifuge at a speed of 7000r / min to obtain a distillation precipitate.

[0026] 4. Supercritica...

Embodiment 2

[0029] 1. Sesame oil removes water through one-stage scraping film evaporation, the vacuum degree of scraping film evaporation degassing is 10.0Pa, the evaporation temperature is 150.0°C, and the feeding speed is 45.0kg / 1h;

[0030] 2. The degassed sesame oil undergoes primary molecular distillation to separate the light components including sesamin. The vacuum degree of molecular distillation is 5.0Pa, the evaporation temperature is 265.0°C, the condensation temperature is 60°C, the feed rate is 40.0kg / 1h, and the film is scraped The speed is 300r / min. Implementation effect, the isolate accounts for 5.0% of the raw material oil, and the transfer rate of sesamin reaches more than 95.0%; meanwhile, high-quality sesame oil (accounting for 95.0% of the raw material oil) is obtained.

[0031] 3. After storing the light fraction after molecular distillation at 4°C for 24 hours, centrifuge at a speed of 7000r / min to obtain a distillation precipitate.

[0032] 4. Supercritical CO 2...

Embodiment 3

[0035] 1. Sesame oil removes water through one-stage scraping film evaporation, the vacuum degree of scraping film evaporation degassing is 10.0Pa, the evaporation temperature is 200.0°C, and the feeding speed is 40.0kg / 1h;

[0036] 2. The degassed sesame oil undergoes primary molecular distillation to separate the light components including sesamin. The molecular distillation vacuum is 1.0Pa, the evaporation temperature is 280.0°C, the condensation temperature is 50°C, the feed rate is 60.0kg / 1h, and the film is scraped The speed is 280r / min. Implementation effect, the isolate accounts for 10.0% of the raw material oil, and the transfer rate of sesamin reaches more than 95.0%; simultaneously, high-quality sesame oil (accounting for 90.0% of the raw material oil) is obtained.

[0037] 3. After storing the light fraction after molecular distillation at 2°C for 15 hours, centrifuge at a speed of 6000r / min to obtain a distillation precipitate.

[0038] 4. Supercritical CO 2 Ext...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for extracting sesamin from sesame oil. The sesame oil is used as a raw material. The method comprises the steps of performing primary degassing and primary molecular distillation on the sesame oil, centrifuging and precipitating the distillate to separate the sesamin from the sesame oil, and removing grease from the centrifuged and precipitated distillate through supercritical CO2 extraction to obtain a crude sesamin product; finally, crystallizing the crude sesamin product to obtain a sesamin crystal. By adopting the method disclosed by the invention, high-purity sesamin and high-purity sesame oil can be obtained at the same time, the whole extraction process does not cause any harmful substance pollution, the extraction efficiency is high, and the cost is low.

Description

technical field [0001] The invention relates to a method for extracting and purifying sesamin from sesame oil. Background technique [0002] Sesame contains lignan antioxidant substances such as sesamin and sesamolin. Sesamin is usually a needle-like or powdery white solid with a molecular weight of 354.36 and a melting point of 121-123°C. It is insoluble in water, acid and alkali, and easily soluble In acetone, chloroform, ethyl acetate and other organic solvents. In recent years, a lot of research has been done on the physiological functions of sesamin at home and abroad. It is generally believed that sesamin has strong anti-oxidation, liver protection, lowering cholesterol, anti-hypertensive, inhibiting breast cancer and immune activation and other physiological functions. Therefore, people's research on sesamin extraction and purification technology is deepening day by day, and the extraction process is continuously improved to improve extraction efficiency and purity. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07D493/04
CPCC07D493/04Y02P20/54
Inventor 张海洋王永宏苗红梅李春明李凤翮
Owner HENAN SESAME RES CENT HENAN ACADEMY OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap