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Method of extracting sesamin from seasame cake

A technology for sesame cake and sesamin, which is applied in the field of preparation of extracting sesamin from sesame cake, can solve problems such as the utilization of lignans that are not involved, and achieve the effects of inhibiting oxidative rancidity and enhancing health-care functions.

Inactive Publication Date: 2007-08-01
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above-mentioned development, utilization and patents related to sesamin are basically based on sesame, sesame oil or sesame oil feet, and none of them involve the utilization of lignans in sesame cake, a by-product of sesame oil production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1000g sesame cake, add 2 times the volume of n-hexane, degrease 2 times / 10h; then wash 3 times with distilled water, dry in vacuum at 50°C; add 4 times the volume of methanol to the defatted sesame cake, leaching 2 times / 10h 6h, solid-liquid separation; the filtrate was concentrated by rotary evaporation to obtain 39.6 g of extract; the extract was suspended with a small amount of hot water, extracted twice with ethyl acetate, and then concentrated by rotary evaporation to obtain 19.6 g of ethyl acetate extract.

Embodiment 2

[0025] 1000g sesame cake, add 3 times the volume of pentane, degrease 3 times / 3h; then wash 2 times with 3% sodium chloride aqueous solution, and dry at 60°C; add 8 times the volume of methanol to the defatted sesame cake, 45°C Extraction 3 times / 6h, solid-liquid separation; the filtrate was concentrated by rotary evaporation to obtain 41.8g of extract; the extract was suspended with a small amount of hot water, extracted 3 times with ethyl acetate, and then concentrated by rotary evaporation to obtain 20.5g of ethyl acetate for extraction things.

Embodiment 3

[0027] 1000g sesame cake, add 5 times the volume of n-hexane, degrease 3 times / 6h; then wash 3 times with 10% sodium chloride aqueous solution, and dry at 70°C; add 8 times the volume of ethanol to the defatted sesame cake, 60 Extract at ℃ for 2 times / 6h, solid-liquid separation; the filtrate was concentrated by rotary evaporation to obtain 37.4g of extract; suspend the extract with a small amount of hot water, extract 3 times with ethyl acetate, and then concentrate by rotary evaporation to obtain 17.3g of ethyl acetate Extracts.

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PUM

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Abstract

The invention relates to a method for preparing sesamin from seasame cake. It comprises following steps: taking side product sesameseed meal in benne oil factory as raw material, removing left oil using skellysolve B; taking oil-removed seasame cake as raw material, extracting sesamin coarse extract with methanol; separating and purifying with silica gel column chromatography method and getting sesamin. The productivity of sesamin is 1.57%, and purity id 88.02%. The invention makes use of sesameseed meal to prepare seasame that possesses multiple physiologically active substance, so the market prospect is wide.

Description

technical field [0001] The invention discloses a method for preparing sesamin from sesame cake, which relates to the extraction and purification of sesamin. Using the method of the invention to comprehensively utilize the sesame cake to prepare sesamin with various physiologically active functions has broad application prospects. Background technique [0002] As an important oil crop, sesame has a long history of planting, especially in developing countries in Asia and Africa. Sesame contains about 0.5% to 1.0% of lignan compounds, and the most important one is sesamin or sesamin, accounting for more than 50% of the lignan content. The sesame lignans that Japanese scholars have isolated and identified include sesamin, episesamin, sesamol, sesamolin, sesamolin, sesamol and pinoresinol. Recent studies on the antioxidant effect of sesame lignans, their metabolism in vivo and the interaction of some biological enzymes have shown that sesame lignans can capture free radicals, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07G1/00A61K36/185A61P39/06C07D493/04
Inventor 董英徐斌钱国伟
Owner JIANGSU UNIV
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