Preparation method for extracting artemisinin from artemisia carvifolia

A technology of artemisinin and artemisinin, applied in organic chemistry and other directions, can solve the problems of waste of resources and limited extraction rate of artemisinin, and achieve the effect of avoiding waste, realizing maximum utilization, and ensuring extraction rate.

Pending Publication Date: 2022-02-08
河南海汇药物研究有限公司
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Problems solved by technology

Therefore, the medicinal value of Artemisia annua is very high, but in the prior art, when extracting artemisinin in Artemisia annua, the extraction rate of artemisinin is limited, and a large amount of artemisinin will remain in the leaves of Artemisia annua, thus causing A large amount of waste of resources, in view of the above situation, the present invention proposes a preparation method for extracting artemisinin from Artemisia annua

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  • Preparation method for extracting artemisinin from artemisia carvifolia
  • Preparation method for extracting artemisinin from artemisia carvifolia

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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0029] In describing the embodiments o...

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Abstract

The invention discloses a preparation method for extracting artemisinin from artemisia carvifolia, which comprises the following steps of: 1, crushing artemisia carvifolia leaves to obtain artemisia carvifolia leaf powder; 2, adding the artemisia carvifolia leaf powder into petroleum ether, and continuously extracting for three times; and 3, combining the artemisia carvifolia extracting solutions extracted for three times, filtering, recovering petroleum ether from the filtrate, and concentrating into paste under reduced pressure. The extraction of artemisinin is carried out in an extraction device. A first motor drives a sliding block to move in a storage pool, and then petroleum ether in the storage pool is pressed into an extraction cavity. When the petroleum ether and artemisia carvifolia powder are subjected to an extraction reaction, the artemisia carvifolia powder is stirred by an inner stirring paddle in the extraction cavity, and the petroleum ether solution is stirred by an external stirring paddle. As the stirring directions of the artemisia carvifolia powder and the petroleum ether solution are opposite, the contact area of the petroleum ether and the artemisia carvifolia powder can be effectively increased, the extraction rate of artemisinin is further guaranteed, and waste of resources is avoided.

Description

technical field [0001] The invention relates to the technical field of Artemisia annua extraction, in particular to a preparation method for extracting artemisinin from Artemisia annua. Background technique [0002] Artemisia annua is a traditional Chinese medicine, which is the above-ground dry part of Artemisia annua, a plant in the Chrysanthemum family, and it is also the raw material of Qinghaosan, a new Chinese veterinary drug that is applying for registration this time. Artemisinin and its derivatives have been found to not only have anti-masochistic effects, but also have various pharmacological effects, mainly in anti-schistosomiasis, anti-arrhythmia, anti-systemic lupus erythematosus, anti-tumor, anti-endotoxin and immune system regulation and other aspects, and human clinical research has been carried out in anti-schistosomiasis and anti-systemic lupus erythematosus. Therefore, the medicinal value of Artemisia annua is very high, but in the prior art, when extract...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D493/20
CPCC07D493/20
Inventor 郭建钊郭宇鹏王娅娟
Owner 河南海汇药物研究有限公司
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