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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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  • Abstract
  • Description
  • Claims
  • Application Information

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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 extraction, which affects the extraction efficiency, and the accumulation is uneven, and dust accumulation is easy to occur locally. , the problem of affecting the extraction effect; and provide a pretreatment method before supercritical extraction of industrial hemp flowers and leaves

Method used

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

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specific Embodiment approach 1

[0009] Embodiment 1: This embodiment is a pretreatment method before supercritical extraction of industrial hemp flower leaves, which is specifically completed according to the following steps:

[0010] 1. Mixing: first crush the industrial hemp flower leaves to obtain the crushed industrial hemp flower leaves, then add ethanol with a mass fraction of 10% to 20% to the crushed industrial hemp flower leaves, and mix well to obtain the mixed raw material; The mass ratio of crushed industrial hemp flowers and leaves to ethanol with a mass fraction of 10% to 20% is 20:1 to 2;

[0011] 2. Granulation: use the pelletizing machine to make the mixed raw materials into pellets 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 prefabricated pellets of industrial hemp flower leaves.

[0013] In this embodiment, ethanol with a mass fraction of 10% to 20% is used as the binder, and the moist...

specific Embodiment approach 2

[0014] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the moisture content of the industrial hemp flowers and leaves described in step 1 is 8% to 12%. Others are the same as the first embodiment.

specific Embodiment approach 3

[0015] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the particle size of the crushed industrial hemp flowers and leaves in step 1 is 10 mesh to 20 mesh. Others are the same as those in Embodiment 1 or 2.

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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.

Description

technical field [0001] The invention belongs to the field of plant extraction, and in particular relates to a pretreatment method for industrial hemp flower leaves. Background technique [0002] Industrial hemp refers to cannabis with a tetrahydrocannabinol content of less than 0.3%, and the non-addictive component cannabidiol (CBD) in industrial hemp has anti-inflammatory, bactericidal, analgesic, anti-anxiety, anti-psychotic, and antioxidant properties. , improve learning and memory, neuroprotection and reduce intestinal peristalsis, etc., can be used to treat multiple arteriosclerosis and Parkinson's disease, prevent myocardial infarction, block breast cancer metastasis, inhibit glioma cell metastasis and inhibit sex hormone secretion, etc. It can be used to treat spasticity and movement disorders in patients with glaucoma, paraplegia and multiple sclerosis, cancer pain, neuralgia, migraine, epilepsy, etc. Therefore, vigorously developing and utilizing industrial hemp to...

Claims

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Application Information

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IPC IPC(8): B01F13/10B01J2/00B01D11/02
CPCB01J2/00B01D11/0203B01F33/83B01F33/83612
Inventor 彭禹孙秋君徐诚蛟石洪影李东玉
Owner 哈尔滨市汉博生物科技有限公司
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