Method for preparing high-content sesamin from sesame seed meal

A technology of sesamin and sesame meal, which is applied in the field of preparing high-content sesamin, to achieve the effects of increasing the amount of feeding, reducing costs, and reducing the amount of extraction times

Active Publication Date: 2014-12-03
SHAANXI YUANBANG BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to solve the technical problems of low product content, high production cost, and high organic solvent residue in the existing sesamin preparati

Method used

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  • Method for preparing high-content sesamin from sesame seed meal
  • Method for preparing high-content sesamin from sesame seed meal
  • Method for preparing high-content sesamin from sesame seed meal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Sesame meal raw material 1 ton, 20 tons of ethanol with a purity of 80% percolation extraction, temperature 70°C, percolation time 8h-10h, percolation liquid concentrated at 60°C to a purity of 50%, filtered, filter cake dried for later use, filtrate Macroporous adsorption resin, wash the melanin with 50% ethanol until the effluent is colorless, elute with 80% to 95% ethanol, concentrate and dry the eluent to obtain a dry paste; combine the dry paste and the above-mentioned dry filter cake and pulverize, 5 times Extract with diethyl ether at room temperature, filter, and dry the filter cake; dissolve the filter cake in ethanol with 15 times the purity of 95%, decolorize with a small amount of activated carbon, and decolorize at a temperature of 85°C, filter, cool the filtrate to crystallize, filter, crush the filter cake, and obtain sesamin 5.3kg, the detected sesamin content is 94.1%, and the color is very white.

Embodiment 2

[0044]1 ton of sesame meal raw material, 20 tons of methanol with a purity of 80% percolation extraction, temperature 70°C, percolation time 8h-10h, percolation liquid concentrated at 60°C to 50% alcohol, filtered, filter cake dried for use, filtrate Apply macroporous adsorption resin, wash the melanin with 50% methanol until the effluent is colorless, elute with 80%-95% methanol, concentrate and dry the eluent; combine the semi-finished product and the above-mentioned dry filter cake and pulverize, 5 times the amount of diethyl ether at room temperature Leaching, filtering, and drying of the filter cake; dissolving the filter cake in ethanol with 15 times the purity of 95%, decolorizing with a small amount of activated carbon at a temperature of 85°C, filtering, cooling the filtrate to crystallize, filtering, and pulverizing the filter cake to obtain 5.7kg of sesamin, The detected sesamin content is 93.9%, and the color is very white.

Embodiment 3

[0046] Sesame meal raw material 1 ton, 20 tons of ethanol with a purity of 80% percolation extraction, temperature 70°C, percolation time 8h-10h, percolation liquid concentrated at 60°C to a purity of 50%, filtered, filter cake dried for later use, filtrate Macroporous adsorption resin, wash the melanin with 50% ethanol until the effluent is colorless, elute with 80%-95% ethanol, concentrate and dry the eluent to obtain a dry paste; combine the dry paste and the above-mentioned dry filter cake and pulverize, 5 times Extract with diethyl ether at room temperature, filter, and dry the filter cake; dissolve the filter cake in ethanol with a purity of 25 times more than 95%, decolorize with a small amount of activated carbon, and decolorize at a temperature of 85°C, filter, cool the filtrate to crystallize, filter, crush the filter cake, and obtain sesame Sesamin 5.5kg, after testing, the sesamin content is 97.1%, and the color is very white.

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Abstract

The invention relates to a method for preparing high-content sesamin from sesame seed meal. The method comprises the following steps: 1) percolating; 2) concentrating the percolate; 3) depigmenting and purifying by use of resin, 4) concentrating the eluate; 5) purifying; 6) crystallizing, namely dissolving the semi-finished sesamin obtained in the step 5) in 10-30 times of 90%-95% ethanol, next, adding a little active carbon, stirring for dissolving for one hour at a temperature within the range of 80-90 DEG C, filtering, cooling the filtrate, crystallizing, filtering, drying the crystals and grinding the crystals to finally obtain the sesamin. The method for preparing the high-content sesamin from the sesame seed meal is used for solving the technical problems of low product content, high production cost, high organic solvent residual and the like of an existing sesamin preparation method, and is high in extraction ratio, and therefore, the cost of the extract is obviously reduced.

Description

technical field [0001] The invention relates to a method for preparing high-content sesamin from sesame meal. Background technique [0002] Sesamin (English name: sesamin), white crystalline powder, d-type, needle-like crystal (ethanol), melting point 122-123 ° C, optical rotation [α] D20 + 64.5 ° (c = 1.75, chloroform). dl-type, crystalline (ethanol), melting point 125 ~ 126 ℃. Soluble in chloroform, benzene, acetic acid, acetone, slightly soluble in ether, petroleum ether. Almost insoluble in water, alkaline solution and hydrochloric acid. [0003] The molecular structural formula is as follows: [0004] [0005] Sesamin was mainly used as an auxiliary agent for pyrethrum insecticides in the early days, because it has a synergistic effect and can reduce production costs. However, with the development of science and technology, the research on sesamin has deepened, and high-purity sesamin has gradually been used in health care. products and medicine. In recent years...

Claims

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Application Information

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IPC IPC(8): C07D493/04
CPCC07D493/04
Inventor 赵江李艳董浩祝木林张永利寇玉锋
Owner SHAANXI YUANBANG BIO TECH
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