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Sudden temperature change method

A sudden temperature change and insect-killing technology, which is applied to the device for catching or killing insects, hunting equipment, applications, etc., can solve the problems of inability to kill insect eggs, expensive automatic temperature accurate monitoring equipment and instruments, slow temperature reduction, etc. , to achieve the effect of not destroying the composition structure and quality of the product, low processing cost, and thorough insect removal

Active Publication Date: 2015-09-23
德中堂(湖南)医药有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this insecticidal treatment method has the following defects: (1) This method only slowly lowers the temperature, which will restore a part of the eggs that are already in an active state and are about to hatch back to a dormant state, let alone kill them that are still in a deep dormant latent state. eggs
(2) This method also uses expensive automatic temperature accurate monitoring equipment and instruments

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Processing of raw rehmannia

[0027] The processing method includes the following steps:

[0028] (1) Observing the early state of rehmannia glutinosa

[0029] Raw rehmannia medicinal materials have been packed in airtight plastic bags. At the beginning of summer, a small amount of cutworm adults and larvae were found to be active. After careful observation, the density of eggs in the medicinal materials reached 25 pieces per kilogram.

[0030] (2) For the bagged medicinal materials in step (1), perform a low-temperature deworming first: put the bagged medicinal materials directly in a freezer at -48°C, take them out two days later, dry the medicinal materials, and find that all larvae have been killed.

[0031] (3) The medicinal materials in step (2) are grouped equally, and divided into control group and experimental group:

[0032] Experimental group adopts deinsectization method of the present invention to process, and step is as follows:

[0033] Take the medic...

Embodiment 2

[0037] Treatment of the precious medicinal material Fritillaria sichuanensis

[0038] The processing method includes the following steps:

[0039] (1) Observing the early state of the precious medicinal material Chuan Fritillaria

[0040] Chuan Fritillaria is washed, dried and packaged after harvesting, and there is no sign of pest damage. However, in late spring and early summer, a small amount of rice weevil adults and larvae were found in the sub-bags. The average density of adults was 5 per kilogram, the density of larvae was 15 per kilogram, and the density of eggs was 50 per kilogram.

[0041] (2) The bagged medicinal materials in step (1) should be subjected to low-temperature disinsection first: put the bagged medicinal materials directly in a freezer at -48°C, take them out two days later, dry the medicinal materials, and find that all larvae and adults have been killed .

[0042] (3) The medicinal materials in step (2) are grouped equally, and divided into control...

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Abstract

The invention relates to a method for killing pests with the suddenly-changed temperature. The method includes the following steps: (1) a processed object required to be processed is contained in a breathable containing body, the containing body is then moved into a ventilating and breathable constant-temperature library to be contained for 3-5 days, and the temperature of the constant-temperature library is set to range from 32 DEG C to 37 DEG C; (2) the containing body processed in the step (1) is moved into a frozen library to be contained for 24-48 hours, and the temperature of the frozen library is set to range from -50 DEG C to -30 DEG C; (3) the containing body processed in the step (2) is moved into the ventilating, cool and dry environment, and the processed object is dried. The method for killing the pests is simple in needed device, low in processing cost, large in processing amount and free of any chemical object in the processing process; processed products are free of residuals of chemical hazardous substance, the constituent structure and the constituent quality of the products are not damaged, and the pests are thoroughly killed.

Description

technical field [0001] The invention relates to a sudden temperature change method for killing insects. Background technique [0002] For the storage of grain, medicinal materials and other plant raw materials after harvest, the measures for deworming are mostly spraying insecticides, fuming sulfur, high-energy ionizing ray irradiation, high-temperature steam treatment, microwave treatment and other measures. These methods either leave substances harmful to human and animal health in the product or change the chemical properties of the product's contents, affecting the quality. Moreover, in order to improve the overwintering and adversity resistance of eggs, many insects often lay their eggs in the deep pith of plant rhizomes or the inner layer of fruits. These eggs have strong drug resistance, high temperature resistance, and freezing resistance before hatching. characteristics. Although the above traditional deinsectization measures can eliminate the hatched insects, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01M99/00A01M17/00
Inventor 钟文君
Owner 德中堂(湖南)医药有限责任公司
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