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Preparation process for obtaining high purity sesamin from sesame cake meal

A technology of sesame cake and preparation process, applied in the direction of organic chemistry, can solve the problem of low utilization value, achieve the effects of increased added value, high purity, and considerable economic benefits

Inactive Publication Date: 2010-06-16
INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid matter after the sesame oil is made by machine pressing is the sesame cake, which is basically discarded or used as fertilizer in the oil factory, and its utilization value is very low.

Method used

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  • Preparation process for obtaining high purity sesamin from sesame cake meal
  • Preparation process for obtaining high purity sesamin from sesame cake meal
  • Preparation process for obtaining high purity sesamin from sesame cake meal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Using the solid sesame cake as raw material, crush the sesame cake with a pulverizer, pass through a 120-mesh sieve, accurately weigh 500g, add 2000ml of n-hexane, bathe in water at 45°C for 2 hours, and continuously stir in the middle for extraction;

[0024] (2) filter, the filtrate is evaporated with a rotary evaporator to remove n-hexane to obtain an oily extract (sesame oil), add anhydrous methanol according to the ratio of material to liquid (oily extract: anhydrous methanol, g / ml) 1: 4.5, and Stir at ℃ for 6h;

[0025] (3) Stand still for 7h, after layering, take the supernatant and carry out rotary evaporation to remove methanol;

[0026] (4) Add 20ml of petroleum ether, let stand at 45°C, mix in airtight for 0.5h, and filter to obtain the precipitated sesamin crude product;

[0027] (5) Add anhydrous methanol to the crude sesamin in step (4), heat it in a water bath to promote dissolution, place it in a refrigerator at 4°C for crystal growth for 7 hours, t...

Embodiment 2

[0043] A preparation process for obtaining high-purity sesamin from sesame cake, the specific steps are:

[0044] (1) Using the solid sesame cake as raw material, crush the sesame cake with a pulverizer, pass through an 80-mesh sieve, accurately weigh 500g, add 3000ml of n-hexane, bathe in 45°C water for 2 hours, and continuously stir in the middle to extract;

[0045] (2) filter, and the filtrate is evaporated with a rotary evaporator to remove n-hexane to obtain an oily extract (sesame oil), add anhydrous methanol according to the ratio of material to liquid (oily extract: anhydrous methanol, g / ml) 1: 3.5, and Stir at ℃ for 5h;

[0046] (3) Stand still for 7h, after layering, take the supernatant and carry out rotary evaporation to remove methanol;

[0047] (4) Add 30ml of petroleum ether, let stand at 50°C for 2h, and filter to obtain the precipitated sesamin crude product;

[0048] (5) Add the crude sesamin in step (4) to absolute ethanol, heat it in a water bath to prom...

Embodiment 3

[0051] A preparation process for obtaining high-purity sesamin from sesame cake, the specific steps are:

[0052] (1) Using the solid sesame cake as raw material, crush the sesame cake with a pulverizer, pass through a 100-mesh sieve, accurately weigh 500g, add 1800ml of n-hexane, bathe in water at 40°C for 3 hours, and extract with continuous stirring;

[0053] (2) filter, and the filtrate is evaporated with a rotary evaporator to remove n-hexane to obtain an oily extract (sesame oil), and add ethyl acetate according to the ratio of material to liquid (oily extract: ethyl acetate, g / ml) 1: 3.2. Stir at ℃ for 7h;

[0054] (3) Stand still for 5h, after layering, take the supernatant and carry out rotary evaporation to remove ethyl acetate;

[0055] (4) Add 30ml of petroleum ether, let stand at 55°C for 1h, and filter to obtain the precipitated sesamin crude product;

[0056] (5) Add the crude sesamin in step (4) to absolute ethanol, heat it in a water bath to promote dissolut...

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Abstract

The invention provides a preparation process for obtaining high purity sesamin from sesame cake meal. A series of extracting and purifying treatments are carried out on the sesame cake meal by using organic solvents such as normal hexane and the like under a certain condition to obtain the sesamin with high purity finally; raw materials used by the preparation process are solid waste materials of the sesame cake meal which are obtained after preparing sesame oil by squeezing, and the sesamin extracted by separating has higher extraction ratio which reaches about 90%; the obtained sesamin has higher purity which reaches 95.6% by HPLC detection, thereby a good basis for function development and application of the sesamin is established. The invention realizes the comprehensive utilization of the waste materials, greatly increases the additional value of farm products, has very considerable economic benefits, and is suitable for the needs of scale industrial production.

Description

technical field [0001] The invention relates to a preparation process of sesamin, in particular to a preparation process for obtaining high-purity sesamin from sesame cake. Background technique [0002] Sesamin (sesamin), as a biologically active natural substance, is being paid more and more attention by people, and its application in the fields of health care products, food industry, medicine and health is becoming more and more extensive. Sesamin is one of the important biologically active ingredients in sesame (sesamum indicum), and it is a kind of lignans. The content of lignans in sesame is 0.5% to 1%, and sesamin accounts for 50% of these compounds. above. Sesame has been planted as an important oil crop for many centuries, especially in developing countries in Asia and Africa. Sesame can be planted in a wide range of areas in my country. Since 1997, the output has gradually increased, reaching 810,000 tons in 2001, and there are still Great potential for development...

Claims

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Application Information

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IPC IPC(8): C07D493/04
Inventor 陈伟强李树田潘秀萍赵小玲李红梅邓斌徐廷丽王冬兰程义勇
Owner INST OF HYGIENE & ENVIRONMENTAL MEDICINE PLA ACAD OF MILITARY MEDICAL
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