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Insecticide with ginkgo biloba extract residues and preparation method thereof

A technology of Ginkgo biloba extract and leftovers, applied in the directions of botanical equipment and methods, insecticides, acaricides, etc., can solve problems such as shallow taste, and achieve the effect of accelerating construction, improving control level, and not polluting the environment

Inactive Publication Date: 2015-04-01
LINYI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Ginkgo biloba is a plant with natural insect repellent ingredients, its roots, leaves and fruits contain certain insect repellent ingredients, which can be used as the main raw material of insect repellent and insecticide medicines. It is recorded in "Southern Yunnan Materia Medica" and other documents "Ginkgo biloba has the effect of repelling pests. It can be used as an insect repellant and fertilizer for farmers, and its leaves can be used to prevent pests." research, but the current research is just a little bit, and there is a lack of specific and suitable raw materials to produce

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mass percentage formula composition: (1) Original drug: 50g of ginkgo flavonoid lactone extract waste; (2) Solvent: 150ml of ethanol; (3) pH adjuster: 5%-20% sodium hydroxide or potassium hydroxide aqueous solution ; (4) Emulsifier: Surfactant 10-40g; (5) Auxiliary: oligomeric polyethylene glycol 0.01-0.1g; (6) Stabilizer: Isopropanol 5-20g; (7) Antifreeze : Ethylene glycol, propylene glycol, glycerin, choose one of the three, 1-10g; (8) Deionized water: 20-60g.

[0024] Production steps:

[0025] (1) Weigh 50 grams of black viscous paste ginkgo flavonoid lactone extract waste, put it in a 1000ml beaker, heat to 80°C and melt into a liquid;

[0026] (2) Dissolving: After the above liquid is cooled to room temperature, add 150ml of anhydrous methanol in three equal amounts, and stir to make it a stable suspension;

[0027] (3) Filtration: vacuum filter the stable suspension obtained in (2) with a filter bottle to obtain the filtrate, and remove granular impurities;

...

Embodiment 2

[0040] Mass percentage formula composition: (1) Original drug: 5-50g of offal of ginkgo flavonoid lactone extract; (2) Solvent: 2-20g of methanol or ethanol; (3) pH adjuster: 5%-20% of hydroxide Sodium or potassium hydroxide aqueous solution; (4) Emulsifier: Surfactant 10-40g; (5) Auxiliary: Oligomerized polyethylene glycol 0.01g-0.1g; (6) Stabilizer: Isopropanol 5- 20g; (7) Antifreeze: choose one of ethylene glycol, propylene glycol, and glycerin, 1-10g; (8) Deionized water: 20-60g.

[0041] Production steps: (1) Weigh 100 grams of black viscous paste ginkgo flavone lactone extract waste, put it in a 1000ml beaker, and heat until it melts into a liquid;

[0042] (2) Dissolution: After the above liquid is cooled to room temperature, add 200ml of anhydrous methanol in three equal amounts, and stir to make it a stable suspension;

[0043] (3) Filtration: vacuum filter the stable suspension obtained in (2) with a filter bottle to obtain the filtrate, and remove granular impurit...

Embodiment 3

[0055] Mass percentage formula composition: (1) Original drug: 5-50g of offal of ginkgo flavonoid lactone extract; (2) Solvent: 2-20g of methanol or ethanol; (3) pH adjuster: 5%-20% of hydroxide Sodium or potassium hydroxide aqueous solution; (4) Emulsifier: Surfactant 10-40g; (5) Auxiliary: Oligomerized polyethylene glycol 0.01g-0.1g; (6) Stabilizer: Isopropanol 5- 20g; (7) Antifreeze: choose one of ethylene glycol, propylene glycol, and glycerin, 1-10g; (8) Deionized water: 20-60g.

[0056] Production steps: (1) Weighing the original drug: Weigh 150 grams of the black viscous paste original drug, put it in a 1000ml beaker, and heat until it melts into a liquid;

[0057] (2) Dissolution: After the above solution is cooled to room temperature (about 25°C), add 150ml of anhydrous methanol to it in three equal amounts to make it a stable suspension;

[0058] (3) Filtration: vacuum filter the suspension obtained in (2) with a filter bottle to remove granular impurities;

[005...

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PUM

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Abstract

The invention belongs to the technical field of insecticides, particularly relates to a plant material insecticide prepared by ginkgo biloba extract residues and a preparation method thereof. Residues obtained after ginkgo biloba extraction have numerous important phenolic acid compounds with insecticidal components, the residues obtained after ginkgo biloba extraction for health care medicine preparation are used for preparing the insecticide, and therefore a good way for changing waste materials into things of value is provided. Ginkgo biloba flavone extract residues are utilized for preparing the biological insecticide to prevent and cure crop diseases and pests, and the problems of chemical pesticide toxic component residues in food and resistance and resurence in chemical preventing and curing can be better solved. Meanwhile, the crop disease and pest preventing and curing level can also be improved further. The insecticide with the ginkgo biloba extract residues is prepared by the ginkgo flavone lactone extract residues, a solvent, a pH conditioning agent, an emulsifying agent, an assistant, a stabilizer, an antifreezing agent and deionized water.

Description

technical field [0001] The invention belongs to the technical field of insecticides, and in particular relates to a plant raw material insecticide prepared from ginkgo extract leftovers and a preparation method thereof. Background technique [0002] Pesticides used to control pests and diseases in agricultural production mainly include chemical pesticides and biological pesticides. The use of traditional chemical pesticides has brought about a series of well-known problems such as environmental pollution, ecological balance damage and food safety, and has brought many adverse effects on promoting the sustainable development of agricultural economy. Entering the 1990s, with the continuous development and progress of science and technology, the call for reducing the use of chemical pesticides and protecting the living environment of human beings has become increasingly louder. Biopesticides have attracted much attention because of their safety, effectiveness, and pollution-fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/00A01P7/04A01P7/02
Inventor 冯尚彩许俊杰张海娟
Owner LINYI UNIVERSITY
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