Preparation method of cannabidiol

A technology for cannabidiol and raw materials, which is applied in the field of industrial preparation and production of cannabidiol, can solve the problems of low yield, high investment cost, complicated preparation process, etc., and achieves simplified process flow, reduced environmental pollution, and improved production. rate effect

Pending Publication Date: 2018-10-12
KUNMING BIONEOVATION BIOLOGICAL SCI & TECH
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] 2) The preparation process is complicated,

Method used

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Examples

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Embodiment Construction

[0029] The present invention will be further described in detail through specific implementation examples below.

[0030] This embodiment provides a kind of preparation method of industrial preparation production cannabidiol, comprises the following process steps:

[0031] Solvent extraction stage:

[0032] 1) Grinding industrial hemp flowers and hemp leaf raw materials into 20-200 mesh particles.

[0033] 2) Put the granule raw materials on a plate and bake at a high temperature of 80-145 degrees Celsius for 5-35 minutes, and set aside;

[0034] 3) Put the granular raw material into the extraction reaction tank, add ethanol to carry out reflux extraction, stir and extract for 1-4 hours and then stand overnight;

[0035] 4) After the granule raw material is filtered through a 60-200 mesh screen, the ethanol (after) is recovered, and the concentrated solution is added to the storage tank;

[0036] 5) After heating the storage tank, add 1-8 times (concentrate) volume of water...

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Abstract

The invention belongs to the technical field of biotechnology, and particularly relates to a preparation method for industrial preparation and production of cannabidiol. The preparation method comprises the following steps: (1), adopting industrial hemp as a raw material and ethanol and water as solvents, and performing extraction and water extraction to obtain filtrate including components of theraw material; (2), performing solvent recovery on the obtained filtrate through a thin-film evaporator so as to obtain extract paste, and performing distillation on the extract paste to obtain cannabidiol-rich matter; and (3), separating and purifying the cannabidiol from the cannabidiol-rich matter by using column chromatography. Through the preparation method, environmental pollution is reduced, the process flow is simplified, the yield is improved, and the investment cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of biotechnology, in particular to a method for industrially producing cannabidiol. Background technique [0002] The method for preparing cannabidiol in the prior art has the following technical defects: [0003] 1) The preparation process adopts an industrial solvent harmful to the environment. [0004] 2) The preparation process is complicated, the yield is low, and the investment cost is high. Contents of the invention [0005] The purpose of the present invention is to provide a preparation method of cannabidiol, which reduces environmental pollution, simplifies the process flow, increases the yield and reduces the investment cost. [0006] To achieve the above object, the invention provides a method for preparing cannabidiol, comprising the steps of: [0007] Step 1, using industrial hemp as a raw material, ethanol and water as solvents, extracting and extracting with water, to obtain a filtrate c...

Claims

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Application Information

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IPC IPC(8): C07C37/82C07C37/74C07C37/84C07C37/70C07C39/23
CPCC07C37/685C07C37/70C07C37/74C07C37/82C07C37/84C07C2601/16C07C39/23
Inventor 宋升民
Owner KUNMING BIONEOVATION BIOLOGICAL SCI & TECH
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