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Method for extracting sesamin from sesame cake meals

A technology for sesame meal and sesamin, applied in the field of extraction and purification of sesamin, can solve the problems of complicated process, high production cost, low sesamin yield, etc., and achieves the effects of high separation efficiency, low cost and advanced technology

Inactive Publication Date: 2015-01-21
HENAN SESAME RES CENT HENAN ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can obtain sesamin, there are problems such as cumbersome process, flammability and explosion of low-flammable organic solvents, residual organic solvents, etc., which directly lead to low yield of sesamin and high production cost. , poor product quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Crush the sesame cake into 50-100 mesh particles and vacuum dry it for later use. The vacuum degree of the vacuum drying box is 200Pa;

[0028] 2. Mix the pulverized and dried sesame cake with 95% ethanol solution at a ratio of 1:2 (kg / L), stir and extract in a sealed tank, and then obtain the extract by airtight filter press; The cake was vacuum-dried to obtain high-quality cake flour, the vacuum degree was 500.0Pa, and the evaporation temperature was 70.0°C. Implementation effect, cake meal residual oil 3.2%.

[0029] 3. The extract is concentrated by a wiped film evaporator to obtain a mixture of sesamin and oil; the vacuum degree of the wiped film evaporation is 10.0Pa, the evaporation temperature is 80.0°C, and the feed rate is 45.0kg / 1h;

[0030] 4. The mixture of sesamin and oil is molecularly distilled to separate the light components including sesamin. The vacuum degree of molecular distillation is 10.0Pa, the evaporation temperature is 240.0°C, the condens...

Embodiment 2

[0033] 1. Crush the sesame cake into 50-100 mesh particles and vacuum dry it for later use. The vacuum degree of the vacuum drying box is 200Pa;

[0034] 2. Mix the pulverized and dried sesame cake with 95% ethanol solution at a ratio of 1:3 (kg / L), stir and extract in a sealed tank, and then obtain the extract by airtight pressure filtration; The cake is vacuum-dried to obtain high-quality cake flour, the vacuum degree is 500.0Pa, and the evaporation temperature is 75°C. Implementation effect, cake meal residual oil 1.8%.

[0035] 3. The extract is concentrated by a wiped film evaporator to obtain a mixture of sesamin and oil; the vacuum degree of the wiped film evaporation is 10.0Pa, the evaporation temperature is 80.0°C, and the feed rate is 45.0kg / 1h;

[0036] 4. The mixture of sesamin and oil is subjected to molecular distillation to separate the light components including sesamin. The vacuum degree of molecular distillation is 5.0Pa, the evaporation temperature is 265.0...

Embodiment 3

[0039] 1. Crush the sesame cake into 50-100 mesh particles and vacuum dry it for later use. The vacuum degree of the vacuum drying box is 200Pa;

[0040] 2. Mix the pulverized and dried sesame cake with 85% ethanol solution in a ratio of 1:4 (kg / L), stir and extract in a sealed tank, and then obtain the extract by airtight filter press; The cake is vacuum-dried to obtain high-quality cake flour, the vacuum degree is 500.0Pa, and the evaporation temperature is 70°C. Implementation effect, cake meal residual oil 0.7%.

[0041] 3. The extract is concentrated by a wiped film evaporator to obtain a mixture of sesamin and oil; the vacuum degree of the wiped film evaporation is 10.0Pa, the evaporation temperature is 80.0°C, and the feed rate is 45.0kg / 1h;

[0042]4. The mixture of sesamin and oil is molecularly distilled to separate the light components including sesamin. The vacuum degree of molecular distillation is 1.0Pa, the evaporation temperature is 280.0°C, the condensation t...

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Abstract

The invention discloses a method for extracting sesamin from sesame cake meals. The method comprises the following steps: (1) pulverizing and drying the sesame cake meals and then mixing with an organic solvent and leaching the sesame cake meals in a sealed tank to obtain a leach liquid; (2) concentrating the leach liquid to obtain a mixture of sesamin and oil; (3) carrying out molecular distillation on the mixture of sesamin and oil to obtain a light component containing sesamin, cooling the light component and centrifuging to obtain crude sesamin; and (4) crystallizing the crude sesamin to obtain the sesamin. By virtue of the method disclosed by the invention, not only high-purify sesamin but high-quality flour of sesame cake meals can be obtained from the sesame cake meals and the entire extraction process has the advantages of no any pollution caused by harmful substances, high extraction efficiency and low cost.

Description

technical field [0001] The invention relates to a method for extracting and purifying sesamin from sesame cake, belonging to the field of crop processing. Background technique [0002] Sesame contains lignan antioxidant substances, such as sesamin, sesamolin, etc. 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. Soluble in acetone, chloroform, ethyl acetate and other organic solvents. Extensive studies have shown that sesamin has strong physiological effects such as anti-oxidation, liver protection, cholesterol lowering, anti-hypertension, breast cancer inhibition and immune activation, thus promoting the market demand for sesamin, which also leads to in-depth research and development in this field Sesamin extraction and purification technology to improve extraction efficiency and purity. [0003] Sesamin can be extracted from sesame seeds, sesame oil, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D493/04
CPCC07D493/04
Inventor 苗红梅张海洋李春段迎辉魏利斌张体德王永宏徐芳芳
Owner HENAN SESAME RES CENT HENAN ACADEMY OF AGRI SCI
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