Preparation method of cannabidiol crystals

A technology of cannabidiol and crystals, which is applied in the field of preparation of high-purity cannabidiol crystals, can solve the problems of complex operation, waste of resources, and low extraction rate, and achieve low organic solvent consumption, short production cycle, and simple operation Effect
CN110283048AActive Publication Date: 2019-09-27云南翰谷生物科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
云南翰谷生物科技有限公司
Publication Date
2019-09-27

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Abstract

The invention relates to a preparation method of cannabidiol crystals. The preparation method comprises following steps: 1, industrial hemp flower and leaf powder is subjected to decarboxylation and extraction so as to obtain a decarboxylation extracted product; 2, the decarboxylation extracted product is mixed with a first solvent, an obtained mixture is allowed to stand at a low temperature for precipitation, a precipitate is removed, the obtained solvent containing cannabidiol is subjected to concentration so as to obtain a concentrated extracted product; 3, the concentrated extracted product is mixed with a second solvent, filtering is carried out, an obtained filtrate is subjected to high pressure preparation liquid chromatogram treatment, a fraction containing cannabidiol is collected, and the solvent in the fraction is removed so as to obtain a cannabidiol crude product; and 4, the cannabidiol crude product is mixed with a crystallization solvent, and crystallization is carried out at a low temperature so as to obtain the cannabidiol crystasl. The preparation method is capable of obtaining the high purity cannabidiol crystals at a high total extraction rate, is low in energy consumption and organic solvent consumption amount, is capable of saving more energy, is more friendly to the environment, and is more specifically to be used in industrial applications.
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Description

technical field

[0001] The invention relates to the field of industrial preparation of cannabinoid crystals, in particular to a preparation method of high-purity cannabidiol crystals. Background technique

[0002] Cannabis (Cannabis sativa L.) is an annual herb with important economic value and medicinal value, also known as hemp, hemp, hemp, mountain silk hemp, jute and industrial hemp. The main active substances in cannabis are cannabinoids, which mainly include tetrahydrocannabinol (THC), cannabidiol (CBD), cannabinol (CBN) and its carboxyl compounds.

[0003] Among cannabinoid compounds, CBD is a non-addictive component in cannabis, which can inhibit the adverse effects of certain polyphenols on the human nervous system, and has a series of functions such as blocking breast cancer metastasis, treating epilepsy, and anti-rheumatoid arthritis. Physiologically active function. In recent years, cannabidiol has attracted widespread attention in the fields of medicine, food,...

Claims

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