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Preparation method of plant essential oil stored grain insecticide slow-release agent

A technology of plant essential oil and slow-release agent, which is applied in the fields of botanical equipment and methods, pesticides, plant growth regulators, etc. Compressibility, prolonged volatilization time, and the effect of reducing the number of microorganisms

Active Publication Date: 2022-03-15
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the essential oil is volatile, it is not easy to spray evenly, and at the same time, it volatilizes quickly, and it is easy to cause waste if it is directly used to spray food, and the long-term storage effect is relatively poor
This patented technology makes essential oils into microcapsules, which overcomes the problem of essential oil volatilization, but the preparation process of microcapsules is complicated, and there will be loss of essential oils, resulting in waste, and the sustained release effect of essential oil capsules is not good, and the effect of insect control is not ideal

Method used

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  • Preparation method of plant essential oil stored grain insecticide slow-release agent
  • Preparation method of plant essential oil stored grain insecticide slow-release agent
  • Preparation method of plant essential oil stored grain insecticide slow-release agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of plant essential oil stored grain insecticidal slow-release agent, comprising the following steps:

[0030] (1) Diatomaceous earth is passed through a 200-mesh sieve, packed into a sealed bag and placed in a desiccator, and dried for subsequent use;

[0031] (2) Compound the peppermint essential oil and basil essential oil into plant essential oil according to the mass ratio of 1:1, then mix the diatomaceous earth and the compounded essential oil at a mass ratio of 1:3.3, stir it evenly with a stirrer, and seal it in Equilibrate for 1 hour in the dark to make it fully absorbed;

[0032] (3) Weigh 1.08% magnesium stearate of the total mass of the mixture prepared in step (2) and add it to the mixture as a lubricant, stir until completely uniform, and balance for 30 minutes;

[0033] (4) Weigh 2.00g of the uniformly stirred mixture in step (3), put it into the tablet machine model, press it under 16MPa pressure, press for 30s each time, remove, dem...

Embodiment 2

[0037] A preparation method of plant essential oil stored grain insecticidal slow-release agent, comprising the following steps:

[0038] (1) Diatomite is passed through a 180-mesh sieve, packed into a sealed bag and placed in a desiccator, and dried for subsequent use;

[0039] (2) Blend peppermint essential oil and basil essential oil into plant essential oil in a mass ratio of 2:1, then mix diatomaceous earth and compounded essential oil in a mass ratio of 1:3, stir evenly with an electric stirrer, and seal Equilibrate in the dark for 0.8h to make it fully absorbed;

[0040] (3) Weigh 0.9% magnesium stearate of the total mass of the mixture prepared in step (2) and add it to the mixture as a lubricant, stir until completely uniform, and balance for 25 minutes;

[0041] (4) Weigh 2.00g of the uniformly stirred mixture in step (3), put it into the tablet machine model, press it under 14MPa pressure, press for 30s each time, remove, demould, and apply a uniform layer of coati...

Embodiment 3

[0045] A preparation method of plant essential oil stored grain insecticidal slow-release agent, comprising the following steps:

[0046] (1) Diatomite is passed through a 220-mesh sieve, packed into a sealed bag and placed in a desiccator, and dried for subsequent use;

[0047] (2) Blend peppermint essential oil and basil essential oil into plant essential oil in a mass ratio of 1:2, then mix diatomaceous earth and compounded essential oil in a mass ratio of 1:4, stir it evenly with a stirrer, and seal it in Balance in the dark for 1.5 hours to make it fully absorbed;

[0048] (3) Weigh 1.2% magnesium stearate of the total mass of the mixture prepared in step (2) and add it to the mixture as a lubricant, stir until completely uniform, and balance for 35 minutes;

[0049] (4) Weigh 2.00 g of the uniformly stirred mixture in step (3), put it into the tablet machine model, and press it under a pressure of 18 MPa for 30 seconds each time, remove, demould, and apply a uniform lay...

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Abstract

The invention provides a preparation method of a plant essential oil stored-grain insecticidal slow-release agent, which belongs to the technical field of insecticide preparation. The preparation method of the plant essential oil stored grain insecticidal slow-release agent is simple, the diatomite is mixed with the compound plant essential oil made of peppermint essential oil and basil essential oil, magnesium stearate is added as a lubricant, and it is put into a tablet machine model Tablets are pressed in the center, and then coated with a uniform layer of coating agent. The sustained-release agent of the invention can prolong the volatilization time of the essential oil, and can store food better.

Description

technical field [0001] The invention relates to the technical field of insecticide preparation, in particular to a preparation method of a plant essential oil stored grain insecticide slow-release agent. Background technique [0002] Food is an important commodity and strategic material related to the national economy and people's livelihood, and it is of great significance to economic development and social stability. However, during grain storage, losses are often caused by pests. Therefore, the improvement of grain storage technology and the control of stored grain pests are particularly important. [0003] Plant essential oils are the unique aromatic substances extracted from plants, which are extracted from the flowers, leaves, roots, bark, fruits, seeds, resins, etc. of herbal plants by distillation and pressing. Studies have shown that plant essential oils have multiple biological activities such as insecticidal, bactericidal, and antiviral, and have synergistic eff...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/34A01N65/22A01N25/08A01N25/18A01P7/04
CPCA01N25/34A01N65/00A01N65/22A01N25/08A01N25/18Y02A50/30
Inventor 李慧静杨二妹贾浩周晨霞姚亚亚
Owner HEBEI AGRICULTURAL UNIV.
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