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Method for preparing needle polyprenols by using solvent extraction method

A molecular distillation and polypentenol technology, applied in the chemical industry, can solve the problems of high production cost, large solvent residue, low production efficiency, etc., and achieve the effects of low price, improved purity and sufficient price.

Inactive Publication Date: 2009-04-01
中健行集团有限公司
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  • Claims
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Problems solved by technology

[0008] At present, polyprenol is mostly prepared by column chromatography separation technology. The disadvantages of this method are: large amount of solvent used, easy to cause pollution to the environment, low production efficiency, high energy consumption, high production cost, and residual solvent in the product Big and so on

Method used

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  • Method for preparing needle polyprenols by using solvent extraction method
  • Method for preparing needle polyprenols by using solvent extraction method
  • Method for preparing needle polyprenols by using solvent extraction method

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0020] see figure 1 , a method for preparing coniferous polyprenol by solvent extraction and molecular distillation. Fresh pine branches and young leaves are dried and pulverized into pine needle powder with a particle size of 16 to 30 meshes as raw materials, and extracted with petroleum ether. The technological conditions used are: the ratio of the weight of the pine bark raw material to the volume of the liquid is 1:5-1:10, the temperature is 40-70°C, and the extraction is performed twice, each time for 1.5-2 hours; The final material is frozen and dewaxed at a temperature of 0-25°C, and then concentrated under the conditions of a temperature ≤ 60°C and a vacuum of -0.07-0Mpa; the concentrated material is adjusted to a pH of 8 ~10 for saponification; then extract the saponified material. During extraction, use petroleum ether:saponification extract 2:1~6:1, ex...

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Abstract

The invention relates to a method for preparing coniferous polypentenol by adopting the solvent extraction method and the molecular distillation method; fresh pine branch tender leaves are dried and smashed into pine needle powder with 16 to 30 meshes as a raw material, petroleum ether is used for extraction, then the freezing dewaxing is carried out at the temperature of 0 to 25 DEG C, and a polyprenol crude product is prepared by concentration, saponification and extraction; the polyprenol crude product is separated and purified through a first-stage molecular distillation device and a second-stage molecular distillation device, thereby preparing a high-purity polyprenol finished product. The raw material is sufficient, the solvent extraction method and the molecular distillation method are projects with high efficiency, energy conservation and environmental protection; the prepared product has no solvent residue, and the purity thereof is high, thereby being in line with the modern requirements of green and environmental protection; and the method can not only improve the purity and the yield of the polyprenol, but also can be in line with the industrial production requirements, improve the traditional process and realize the clean production. The polyprenol product produced by the technology has higher purity and can be widely used in health care foods, nutrition supplements and bio-pharmaceutical industry.

Description

【Technical field】 [0001] The invention belongs to the technical field of chemical industry, and relates to a method for preparing coniferous polyprenol by using pine needles as raw materials, solvent extraction and molecular distillation. 【Background technique】 [0002] Polyprenols (Polyprenols) are a class of lipid compounds composed of a series of prenyl units and terminal prenol units. Polyprenols can promote the body’s hematopoietic function, improve liver function, and treat aplastic Anemia, various liver diseases, senile dementia and diabetes all have significant curative effect, and have no toxic side effects. The structural diagram (n=11~17) of polyprenol is: [0003] [0004] Polyprenol is similar in structure and performance to dolichols contained in the human body and mammalian organs. The structure diagram of dolichols is: [0005] [0006] Dolichol is the carrier of sugar in the synthesis of glycoproteins in biofilms, and plays an important role in maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C33/02C07C29/74C07C29/86A61K36/15
CPCY02P20/10
Inventor 谢衡李若达郑光耀
Owner 中健行集团有限公司
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