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A kind of composition and its preparation method and application

A composition and mixture technology, applied in the direction of botany equipment and methods, applications, chemicals for biological control, etc., can solve the problems of mammalian poisoning, chromosomal aberration, human and animal harm, etc., and achieve easy industrial expansion production, easy Acquisition, low-cost effect

Active Publication Date: 2021-10-29
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these substances are harmful to humans and animals while preventing and treating stiff diseases, and there is a risk of polluting the environment
For example, although carbendazim can prevent and treat stiffness, its residues can cause liver disease and chromosomal aberrations, and are toxic to mammals

Method used

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  • A kind of composition and its preparation method and application
  • A kind of composition and its preparation method and application
  • A kind of composition and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Preparation of antibacterial substances for preventing and treating silkworm morbidity

[0042] Step (1): After the wheat bran is dried at 70-80°C, it is crushed into wheat bran powder, and passed through a 30-mesh sieve for later use;

[0043] Step (2): Extract the wheat bran powder in step (1) with 95% ethanol for 24 hours each time, with occasional shaking during the period, and repeat the extraction twice;

[0044] Step (3): Separate the ethanol extract from the wheat bran by filtration, combine the filtrates, and concentrate under reduced pressure to obtain a viscous ethanol extract, wherein the concentration under reduced pressure is at -0.08MPa and placed in a 60°C water bath Concentration process;

[0045] Step (4): Extract the ethanol extract with petroleum ether, each extraction is 15 minutes, repeat twice, and combine the petroleum ether extracted each time;

[0046] Step (5): Concentrating the petroleum ether phase under reduced pressure to obtai...

Embodiment 2

[0052] Embodiment 2 Preparation of antibacterial substances for preventing and treating silkworm morbidity

[0053] Step (1): Dry the wheat bran at 70-80°C, beat it into wheat bran powder, pass through a 40-mesh sieve for later use;

[0054] Step (2): Extract the wheat bran powder in step (1) with 95% ethanol for 24 hours each time, and repeat the extraction 3 times with occasional shaking during the period;

[0055] Step (3): Separate the ethanol extract from the wheat bran by filtration, combine the filtrates, and concentrate under reduced pressure to obtain a viscous ethanol extract, wherein the concentration under reduced pressure is at -0.08MPa and placed in a 55°C water bath Concentration process;

[0056] Step (4): extract the ethanol extract with petroleum ether, each extraction lasts 20 minutes, repeat 3 times, and combine the petroleum ether extracted each time;

[0057] Step (5): Concentrating the petroleum ether phase under reduced pressure to obtain a pasty whea...

Embodiment 3

[0063] Example 3 Preparation of antibacterial substances for preventing and treating silkworm morbidity

[0064] Step (1): Dry the wheat bran at 70-80°C, beat it into wheat bran powder, pass through a 40-mesh sieve for later use;

[0065] Step (2): Extract the wheat bran powder in step (1) with 95% ethanol for 24 hours each time, and repeat the extraction 3 times with occasional shaking during the period;

[0066] Step (3): Separate the ethanol extract from the wheat bran by filtration, combine the filtrates, and concentrate under reduced pressure to obtain a viscous ethanol extract, wherein the concentration under reduced pressure is at -0.08MPa and placed in a 50°C water bath Concentration process;

[0067] Step (4): extracting the ethanol extract with petroleum ether, each extraction was 30 minutes, repeated 3 times, and combining the petroleum ether extracted each time;

[0068] Step (5): Concentrating the petroleum ether phase under reduced pressure to obtain a pasty wh...

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Abstract

The invention discloses a composition, which comprises wheat bran extract, a solubilizer, an adhesive and water. In terms of mass percentage, the wheat bran extract is 20-40%, and the solubilizer is 4%- 8%, the adhesive mass accounts for 0-0.4%, and the rest is water. The invention also discloses the preparation method and application of the composition. The control material provided by the invention is applied to silkworms, and can be used to prevent and control silkworms infected with morbidity. The raw material of the present invention is easy to obtain, low in cost, simple in processing, and suitable for industrial production, especially compared with traditional anti-silkworm worm medicines, it has the characteristics of non-toxic, harmless and environment-friendly, and realizes the reuse of wheat bran at the same time, Conducive to the sustainable development of agriculture.

Description

technical field [0001] The invention belongs to the fields of biotechnology and pesticide and veterinary medicine, and in particular relates to a composition and its preparation method and application. Background technique [0002] Silkworm stiffness is one of the main diseases in silkworm breeding and production, which is caused by fungus parasitism. Silkworm morbidity includes beauveria, yellow stiffness, metaborrhea, etc. Sericulture in rural areas is mainly caused by beauveria. Because of its strong infectivity, it is necessary to take timely measures to prevent and control silkworm farmers at ordinary times or when stiff disease occurs, otherwise it will cause serious losses to silkworm farmers. The currently used anti-stiffness pesticides include bleaching powder anti-stiffness powder, formaldehyde anti-stiffness powder, gram chlorine, carbendazim, etc. However, these substances are harmful to humans and animals and have the risk of polluting the environment while pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K36/899A61P31/10A01N65/44A01N25/30A01P3/00
CPCA01N25/30A01N65/00A01N65/44A61K36/899A61K2236/333A61K2236/39A61K2236/51A61K2236/55A61P31/10
Inventor 刘冠卉姚彤郭锡杰屠洁
Owner JIANGSU UNIV OF SCI & TECH
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