Method for extracting fucosterol from alga

A technology of fucosterol and seaweed, applied in the field of biochemistry or biochemical industry, can solve problems affecting safety, achieve reliable quality, regular crystal shape, and small melting range

Inactive Publication Date: 2006-01-04
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the preparation of fucosterol from seaweed is mainly prepared by alumina chromatography. Even if it is prepared by silica gel chromatography, it needs to go through silica gel column chromatography repeatedly, resulting in a small amount of separated substances, which can only be used for The experimental level of structure identification and property analysis, and its crystallization reagent contains toxic substances such as methanol, which affects the safety of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] 1. Cut 10kg of dried seaweed--brown seaweed hijiki or sargassum or kelp (not steamed, directly dried) into small pieces with a guillotine, and then crush the cut pieces with a grinder. The number is not less than 200 mesh, if one crushing is not enough, multiple crushing can be carried out;

[0025] 2. Add 200 liters of ethanol with a concentration of 95% to the above 10kg of hijiki powder, stir the suspension with a wooden stick, and crush it in a 3KW ultrasonic crusher with maximum power for 30min at a time of 5 liters , Observe the degree of cell fragmentation under a microscope to ensure sufficient fragmentation;

[0026] 3. Pour the broken hijiki ethanol suspension back into the extraction tank, extract overnight at 45°C (16 hours), and open the rotating device in the extraction tank during the extraction process to achieve dynamic constant temperature extraction ;

[0027] 4. Put the above suspension in a suction filter for suction filtration, then add 100 liter...

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PUM

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Abstract

The invention discloses a method for extracting fucasterol from seaweed. Said invention adopts the techniques of chromatography and crystallization, etc to quickly extract fucosterol from natural material seacoeed, and has the advantages of rapid separation speed, low separation cost and rich and easily-available raw material and characterized by high product purity (purity is greater than 90%), regular crystal (white needle crystal) and small melting point range of 113-114 deg.C, etc. Said invention can be suitably used as fucosterol slandard prduct and raw material for making medicine. In the technological process related to said invention the single silica-gel column chromatographic separation method is adopted, the product can be crystallized by adopting one-ste process and monobasic solvent (ethyl alcohol), said product has no any toxic harms.

Description

technical field [0001] The invention relates to the field of biochemistry or biochemical technology, in particular to a method for extracting fucosterol from seaweed. Background technique [0002] Fucosterol is a kind of phytosterol, which has very important physiological functions, such as maintaining the stability of biological internal environment, controlling the metabolism of glycogen and minerals, and regulating stress response. In medicine, fucosterol can inhibit carcinogenesis induced by chemical carcinogens, and has the function of preventing and treating cancer. It can also be used as an important source of steroid drugs, and can be used as a raw material for the synthesis of male hormones, female hormones, and adrenal cortex hormones. In addition, fucosterol itself also has estrogen-like effects, and feeding chicks with fucosterol can significantly reduce blood cholesterol. Moreover, fucosterol can promote the absorption of calcium by the small intestine and ren...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07J9/00
Inventor 龚兴国郭建军张锐
Owner ZHEJIANG UNIV
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