Method for extracting active substances from rapeseeds

An active substance, a technology of rapeseed, which is applied in the field of deep processing of rapeseed, can solve the problems that have not been fully developed and utilized, and the research foundation is weak, and achieve the effect of excellent separation effect and simple separation operation

Inactive Publication Date: 2018-11-02
金华市胤宏农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main processed product of rapeseed in my country is rapeseed oil, but there are many important bioactive components in rapeseed, which have not been fully developed and utilized due to the weak research foundation of extraction preparation technology, functional efficacy and mechanism of action.

Method used

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  • Method for extracting active substances from rapeseeds

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Effect test

Embodiment 1

[0020] The method for extracting active substance from rapeseed specifically comprises the following steps:

[0021] 1) Take rapeseed meal after oil extraction from rapeseed, dry and pulverize it, then place it in supercritical CO 2 In the extraction kettle, when the extraction temperature is 55°C, the extraction pressure is 25MPa, CO 2 Extract under the condition of flow rate of 18L / h. After the extraction is completed, the meal is taken out from the kettle, crushed, sieved, and dried to obtain rapeseed defatted powder; Extract the defatted powder with L hydrochloric acid for 2 hours, centrifuge at 2000r / min for 10 minutes, take the supernatant after centrifugation, and add cetyltrimethylammonium bromide (CTMAB) with a concentration of 0.5% dropwise to precipitate polysaccharides and polyphenols until no more precipitation occurs, then centrifuge at 12000r / min for 8min to take the precipitation; wash the precipitation with 95% saturated ethanol solution of sodium acetate and...

Embodiment 2

[0023] The method for extracting active substance from rapeseed specifically comprises the following steps:

[0024] 1) Degreasing: Take rapeseed meal after oil extraction from rapeseed, dry and pulverize it, and place it in supercritical CO 2 In the extraction kettle, when the extraction temperature is 58°C, the extraction pressure is 27MPa, CO 2 Extract under the condition of a flow rate of 20L / h. After the extraction is completed, the meal is extracted from the kettle, and after crushing, sieving, and drying, the rapeseed defatted powder can be obtained; the rapeseed oil can be recovered during the extraction process to realize the complete comprehensive utilization of rapeseed , which improves the technological content of the industry and increases economic benefits;

[0025] 2) Extraction: extract the defatted powder with 0.5mol / L hydrochloric acid for 3 hours under the condition of solid-liquid ratio of 1:14, centrifuge at 2500r / min for 10 minutes, take the centrifuged su...

Embodiment 3

[0029] The method for extracting active substances from rapeseed comprises: degreasing, extracting, deproteinizing, and decolorizing, specifically comprising the following steps:

[0030] Degreasing: Take the rapeseed meal after oil extraction from rapeseed, dry and pulverize it, and place it in supercritical CO 2 In the extraction kettle, when the extraction temperature is 56°C, the extraction pressure is 26MPa, CO 2 Extract under the condition of a flow rate of 18L / h. After the extraction is completed, the meal is extracted from the kettle. After crushing, sieving, and drying, the rapeseed defatted powder can be obtained; the rapeseed oil can be recovered during the extraction process to realize the complete comprehensive utilization of rapeseed , which improves the technological content of the industry and increases economic benefits;

[0031] Extraction: extract the degreasing powder with 0.45mol / L hydrochloric acid for 2 hours under the condition of solid-liquid ratio of...

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Abstract

The invention discloses a method for extracting active substances from rapeseeds. The method comprises the following steps of degreasing, extracting, deproteining and decoloring and specially comprises the steps of firstly, taking rapeseeds, performing squeezing to obtain oil, performing supercritical CO2 extraction on the rapeseed meal powder for degreasing, leaching the degreased powder with hydrochloric acid, taking a supernatant, adding cetyl trimithyl ammonium bromide precipitate polysaccharide and polyphenols, performing washing, then adding a trichloroacetic acid solution for deproteinization, and then performing decoloring with medicinal activated carbon powder and t-leucinet-butylesterhydrochloride crystalline for decoloring so as to obtain rapeseed active substances. The method has the beneficial effects that the extraction method is simple in technology, low in cost and environmental-friendly, the trichloroacetic acid solution is thorough in deproteinization effect, besides,polysaccharide degradation can be effectively prevented, and the content and the purity of polysaccharide in finished products are increased. According to the method, active substances can be efficiently decolored, and besides, the reservation rate of the polysaccharide and the polyphenols in the finished products can be greatly increased.

Description

technical field [0001] The invention relates to the field of deep processing of rapeseed, in particular to a method for extracting active substances from rapeseed. technical background [0002] Rapeseed, also known as brassica seed, is the fruit of rapeseed, a cruciferous crop. The siliques are long, have many pods, and the grains are full. The oil content in rapeseed is 37.5-46.3%. The oil content varies slightly depending on the type of rapeseed. It is one of the main oil crops and honey crops in China, and its seeds are one of the main varieties of raw materials for making oil. Rapeseed is cultivated all over China and is divided into two types: winter rape and spring rape. Its planting area accounts for more than 40% of China's total oil crop area, and its output accounts for more than 30% of China's total oil crop output, ranking first in the world. The fruit of rapeseed is silique, that is, rapeseed. The silique is composed of three parts: fruit peck, fruit body a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/105
CPCA23L33/105A23V2002/00A23V2200/30A23V2250/21
Inventor 刘洋
Owner 金华市胤宏农业科技有限公司
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