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Herba pogostemonis essential oil inclusion compound as well as preparation method and application thereof

A technology of patchouli essential oil and inclusion compound, which is applied in the directions of botanical equipment and method, application, animal repellent, etc., can solve the problems of high inclusion time and temperature, unfavorable preparation and the like, and achieves high drug loading amount, improve the phenomenon of flying powder, and enhance the effect of the effect

Pending Publication Date: 2019-01-18
GUANGDONG FOOD & DRUG VOCATIONAL COLLEGE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the peppermint oil inclusion compound prepared by this method, the inclusion time and inclusion temperature are relatively high, which is not conducive to the actual preparation

Method used

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  • Herba pogostemonis essential oil inclusion compound as well as preparation method and application thereof
  • Herba pogostemonis essential oil inclusion compound as well as preparation method and application thereof
  • Herba pogostemonis essential oil inclusion compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] In this example, the patchouli essential oil inclusion compound was prepared by the following method

[0059] Weigh a certain mass of β-cyclodextrin, add a small amount of distilled water several times to make it completely dissolved in a water bath at 45°C to prepare a supersaturated aqueous solution of β-cyclodextrin; pipette a certain volume of patchouli essential oil, Dissolve it in absolute ethanol according to 1:4 (v / v) to prepare an ethanol solution of patchouli essential oil; under the condition of a constant temperature water bath at 45°C, add patchouli essential oil in proportion to the amount of β-cyclodextrin input Ethanol solution, making the volume ratio of patchouli essential oil and β-cyclodextrin 1:4, the solution gradually becomes turbid from clear and transparent, and finally becomes milky white; stir at 45°C for 2 hours, keep it in a cold storage at 4°C For 20 hours, make the inclusion compound as completely as possible to separate out, suction filter, ...

Embodiment 2

[0061] In this example, the patchouli essential oil inclusion compound was prepared by the following method

[0062] Weigh a certain mass of β-cyclodextrin, add a small amount of distilled water several times to make it completely dissolved in a water bath at 45°C to prepare a supersaturated aqueous solution of β-cyclodextrin; remove a certain volume of patchouli essential oil, Dissolve it in absolute ethanol according to 1:4 (v / v) to prepare an ethanol solution of patchouli essential oil; under the condition of a constant temperature water bath at 45°C, add patchouli essential oil in proportion to the amount of β-cyclodextrin input Ethanol solution makes the volume ratio of patchouli essential oil and the mass ratio of β-cyclodextrin 1:8. The solution gradually changes from clear and transparent to turbid, and finally becomes milky white. Stir at a constant temperature of 38.68°C for 2 hours, and keep it in a cold storage at 4°C. After 20 hours, let the inclusion compound precip...

Embodiment 3

[0064] In this example, the patchouli essential oil inclusion compound was prepared by the following method

[0065] Weigh a certain mass of β-cyclodextrin, add a small amount of distilled water several times to make it completely dissolved in a water bath at 45°C to prepare a supersaturated aqueous solution of β-cyclodextrin; pipette a certain volume of patchouli essential oil, Dissolve it in absolute ethanol according to 1:4 (v / v) to prepare an ethanol solution of patchouli essential oil; under the condition of a constant temperature water bath at 45°C, add patchouli essential oil in proportion to the amount of β-cyclodextrin input Ethanol solution makes the volume ratio of patchouli essential oil and β-cyclodextrin 1:5. The solution gradually changes from clear and transparent to turbid, and finally becomes milky white; stir at 50°C for 2 hours, keep it in cold storage at 4°C For 20 hours, make the inclusion compound as completely as possible to separate out, suction filter, p...

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Abstract

The invention provides a herba pogostemonis essential oil inclusion compound as well as a preparation method and application thereof. The herba pogostemonis essential oil inclusion compound is prepared from beta-cyclodextrin and herba pogostemonis essential oil, wherein the inclusion rate of the herba pogostemonis essential oil inclusion compound is 30 to 82 percent, and the drug loading amount ofthe herba pogostemonis essential oil inclusion compound is 10 to 17 percent. According to the herba pogostemonis essential oil inclusion compound provided by the invention, solidification of a liquidpreparation is realized, volatile components can be prevented from being volatilized, the acting time of a medicine is prolonged, the bioavailability of the medicine is improved, an unpleasant odor of the medicine is covered, and the irritation and toxic and side effects of the medicine are reduced; a pesticide prepared from the herba pogostemonis essential oil inclusion compound has a good repelling effect on pieris rapae, diamond back moth larvae, sandalwood butterfly and litchi leaf roller larvae in an application process, and can be used for effectively repelling threats of plant diseasesand insect pests; the pesticide is used as a biological pesticide, is environmentally friendly and has a good application prospect and relatively high application value.

Description

Technical field [0001] The invention belongs to the field of pharmaceutical preparations and relates to a patchouli essential oil inclusion compound and a preparation method and application thereof. Background technique [0002] In the process of agricultural production, in order to protect and promote the growth of plants, a class of drugs used to kill or drive away pests and inhibit the reproduction of pathogens is called pesticides. It refers specifically to drugs used in agriculture to prevent pests and diseases and regulate plant growth. They play an important role in reducing the damage of pests and weeds to crops and ensuring a good agricultural harvest. At present, agricultural chemical control is the main method to prevent and control crop diseases and insect pests. However, with the large-scale use of chemical pesticides, it not only causes pesticide residues, harms human health, pest resistance, and more pests. At the same time, it also causes agricultural areas and th...

Claims

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Application Information

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IPC IPC(8): A01N65/22A01N25/26A01N25/14A01P7/04
CPCA01N25/14A01N25/26A01N65/00A01N65/22
Inventor 沈小钟王亚晶谭碧漪
Owner GUANGDONG FOOD & DRUG VOCATIONAL COLLEGE
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