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Method for extracting sesamin from sesame oil root

An extraction method and sesame oil technology, which is applied in the field of extracting sesamin from sesame oil feet, can solve few problems such as research on the preparation process of sesamin, and achieve the effects of promoting agricultural structure adjustment, reducing environmental pollution, and good economic benefits

Inactive Publication Date: 2005-03-16
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research on sesamin is also being carried out gradually, and preliminary research has been done on the application of sesamin, but few researchers have studied the preparation process of sesamin

Method used

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  • Method for extracting sesamin from sesame oil root
  • Method for extracting sesamin from sesame oil root
  • Method for extracting sesamin from sesame oil root

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1. reclaims sesame oil from sesame oil foot

[0026] Accurately weigh a certain volume v of sesame oil feet and weigh m 1 , add 4 times of n-hexane (V:V), and stir at 45°C for 2h; the mixture is centrifuged, and the supernatant is rotary evaporated to obtain sesame oil; the precipitate is extracted again, and finally the sesame oil obtained twice is collected together and weighed m 3 , weigh m after drying the sediment 2

[0027] Density of sesame oil feet ρ 1 =m 1 / v

[0028] Solids content in oil foot ρ 2 =m 2 / m 1

[0029] The content of sesame oil in oil feet ρ 3 =m 3 / m 1

Embodiment 2

[0030] Embodiment 2. extract sesamin crude product from reclaiming sesame oil

[0031] Measure 200mL (175.5g) of sesame oil, add methanol according to the ratio of material to liquid 1:3, stir at 60°C for 2.5h, then stand still for liquid separation for 3 hours, and take the upper layer to remove the methanol by rotary evaporation. Add an appropriate amount of petroleum powder, stir at 45°C for 0.5h in a closed manner, and after suction filtration, the filtrate naturally precipitates out, is filtered, dried, and weighed.

[0032] Finally, 0.795g of precipitate was obtained

[0033] According to the gross extraction rate=the quality of the sediment / the content of sesamin in the oil,

[0034] 200mL sesame oil contains 175.5×0.365%=0.641g

[0035] Gross extraction rate = 0.795 / 0.641 × 100% = 124%

[0036] Sesamin in the sediment was analyzed by high performance liquid chromatography, the purity was 67.5%, containing 0.795×0.675=0.537g, therefore, the actual extraction rate=0.5...

Embodiment 3

[0037] Embodiment 3. extract sesamin crude product from reclaiming sesame oil

[0038]Measure 200mL (175.5g) of sesame oil, add ethanol according to the material-to-liquid ratio of 1:2.5, stir at 55°C for 3h, then stand still for liquid separation for 4 hours, and take the upper layer to remove the ethanol by rotary evaporation. Add an appropriate amount of petroleum powder, stir at 45°C for 0.5h in a closed manner, and after suction filtration, the filtrate naturally precipitates out, is filtered, dried, and weighed.

[0039] Finally, 0.718g of precipitate was obtained

[0040] According to the gross extraction rate=the quality of the sediment / the content of sesamin in the oil,

[0041] 200mL sesame oil contains 175.5×0.365%=0.641g

[0042] Gross extraction rate = 0.718 / 0.641 × 100% = 112%

[0043] Sesamin in the sediment was analyzed by high performance liquid chromatography, the purity was 68.9%, containing 0.718×0.689=0.494g, therefore, the actual extraction rate=0.494 / ...

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Abstract

The invention discloses a method for extracting sesamin from sesame oil root which consists of, extracting reclaimed sesame oil with skellysolve B, using the reclaimed sesame oil as raw material, extracting sesamin crude product by methanol or ethanol,and crystallizing the sesamin crude product.

Description

technical field [0001] The invention discloses a method for extracting sesamin from sesame oil feet, relating to the extraction method of sesamin. Background technique [0002] Sesame may be the oldest oilseed known to be used by humans as a food resource, and it is also the earliest seasoning used, and it is widely grown in developing countries in Asia and Africa. my country is the largest sesame producer in the world, with an output of 810,000 tons in 2001, about 40% of the world's total output. The chemical composition of sesame is mainly lipids, proteins, carbohydrates, minerals, vitamins, etc. Sesame is rich in oil and protein and has high edible value. The oil content of sesame is generally about 50%. Sesame oil contains about 80% unsaturated fatty acids, oleic acid and linoleic acid are the main unsaturated fatty acids; saturated fatty acids are mainly composed of palmitic acid and stearic acid, and the content is less than 20% of the total fatty acids. The unsapo...

Claims

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Application Information

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IPC IPC(8): C07D317/48
Inventor 王兴国刘元法金青哲
Owner JIANGNAN UNIV
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