Method for pretreatment of flowers and leaves of industrial hemp before supercritical extraction

A cannabis flower, supercritical technology, applied in solvent extraction, separation method, solid solvent extraction and other directions, can solve the problems of affecting extraction efficiency, uneven stacking, low bulk density of flowers and leaves, etc., to ensure the extraction effect and not easy to dust accumulation. , the effect of less fine dust

Pending Publication Date: 2021-01-12
哈尔滨市汉博生物科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the crushed industrial hemp flowers and leaves are directly subjected to supercritical extraction, and the flowers and leaves have a relatively small bulk density, resulting in a small amount of extractio...
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Abstract

The invention discloses a method for pretreatment of flowers and leaves of industrial hemp before supercritical extraction. The invention belongs to the field of plant extraction, and particularly relates to a pretreatment method for the flowers and leaves of industrial hemp. The invention aims to solve the problems of low extraction amount, influence on extraction efficiency, non-uniform accumulation, easy generation of dust accumulation locally and influence on extraction effect due to low bulk density of the flowers and leaves in direct supercritical extraction of crushed flowers and leavesof industrial hemp in the prior art. The pretreatment method comprises the following steps: 1, conducting mixing to obtain mixed raw materials; 2, conducting granulating to obtain wet pellets; and 3,conducting drying to obtain prefabricated pellets of the flowers and leaves of industrial hemp. The method has the advantages that 1, unit bulk density is increased by 30-50%, stacking is stable, andcarbon dioxide gas can stably and uniformly flow among substances; and 2, certain pressure resistance is achieved, and breaking is not likely to happen. Little fine dust is generated, and during extraction, dust accumulation is not likely to be generated locally. The method is mainly used for pretreatment of the flowers and leaves of industrial hemp and faciliates supercritical extraction of cannabidiol.

Application Domain

Transportation and packagingMixers +2

Technology Topic

HorticultureEngineering +2

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  • Method for pretreatment of flowers and leaves of industrial hemp before supercritical extraction

Examples

  • Experimental program(8)
  • Comparison scheme(7)

Example Embodiment

[0009]Specific embodiment 1: This embodiment is a pretreatment method before supercritical extraction of industrial hemp mosaic, which is specifically completed according to the following steps:
[0010]1. Mixing: firstly crush the industrial hemp mosaic to obtain the crushed industrial hemp mosaic, and then add 10-20% ethanol to the crushed industrial hemp mosaic, and mix to obtain mixed raw materials; The mass ratio of crushed industrial hemp flowers and leaves to ethanol with a mass fraction of 10%-20% is 20:1~2;
[0011]2. Granulation: The mixed raw materials are made into pellets using a pelletizing machine to obtain wet pellets;
[0012]3. Drying: drying the wet pellets at a temperature of 60-80°C until the moisture content is lower than 8% to obtain industrial hemp flower leaf prefabricated pellets.
[0013]In this embodiment, ethanol with a mass fraction of 10%-20% is used as a binder. The moisture in the ethanol with a mass fraction of 10%-20% will interfere with the effect of supercritical extraction, so after the granulation is completed, drying is required .

Example Embodiment

[0014]Embodiment 2: The difference between this embodiment and Embodiment 1 is that the water content of the industrial hemp mosaic in step 1 is 8%-12%. Others are the same as the first embodiment.

Example Embodiment

[0015]Specific embodiment three: this embodiment is different from specific embodiment one or two in that the granularity of the pulverized industrial hemp mosaic in step one is 10 mesh to 20 mesh. Others are the same as the first or second embodiment.

PUM

PropertyMeasurementUnit
Granularity10.0 ~ 20.0mesh
Diameter1.5 ~ 2.5mm
Diameter1.0 ~ 2.0mm

Description & Claims & Application Information

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