Zein-based emamectin benzoate nano preparation and preparation method thereof

A technology of emamectin and zein, which is applied in the field of pesticides, can solve the problems of large amount of organic solvent usage, great environmental impact, and complicated preparation steps, so as to improve biocompatibility and reduce usage , the effect of improving stability

Active Publication Date: 2021-10-15
HUIZHOU YINNONG TECH
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  • Abstract
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Problems solved by technology

However, emamectin benzoate is a new type of high-efficiency semi-synthetic antibiotic synthesized from the fermentation product abamectin B1. Its melting point is 141°C-146°C, and its solubility in water at 20°C is 0.024g / L, insoluble in hexane, soluble in organic solvents such as methanol and methylene chloride, easy to decompose under ultraviolet light, if exposed to the environment, affected by environmental factors such as light, air, rain, generally have poor efficacy, The problem of short drug effect and low utilization rate, so emamectin benzoate is usually encapsulated, cross-linked and coupled to prepare nano-pesticide preparations, and emamectin benzoic acid Salt for transmission and protection, effectively increasing the stability of emamectin benzoate, improving the wettability and dispersibility of emamectin benzoate, and providing new impetus for sustainable agricultural development
[0003] However, in the preparation process of general nano-preparations, the use of organic solvents is relatively large, which has a great impact on the environment, and the preparation steps are complicated and costly

Method used

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  • Zein-based emamectin benzoate nano preparation and preparation method thereof

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preparation example Construction

[0047] The application also provides a method for preparing a zein-based emamectin benzoate nano-preparation, the preparation of the above-mentioned zein-based emamectin benzoate nano-preparation The method is used to prepare the zein-based emamectin benzoate nano-preparation of any of the above embodiments. The preparation method of the above-mentioned zein-based emamectin benzoate nano-preparation comprises the following steps: solvent and water are prepared to obtain a binary solution; zein, phosphoric acid compounds and Emamectin benzoate is placed in the binary solution for dissolution treatment; water is placed in the dissolved binary solution for nano-processing to obtain zein-based emamectin Benzoate nanoformulations.

[0048]In the above-mentioned preparation method of the emamectin benzoate nano-preparation based on zein, the solvent and water are prepared first to obtain a binary solution to dissolve the zein, and in corn After the prolamin is dissolved, the phosp...

Embodiment 1

[0064] 50kg of SV-92 and 35kg of water were prepared to obtain a binary solution;

[0065] Put 1kg of zein in the binary solution to fully dissolve;

[0066] Under the condition that the rotating speed is 210r / min, 1 kg of potassium tripolyphosphate and 1 kg of emamectin benzoate are placed in the binary solution and fully stirred and dissolved.

[0067] 2kg TRST (main component is phosphate ester dispersant) is placed in binary solution, and in binary solvent, add remaining water (make up to 100kg) to obtain the emamectin benzoic acid based on zein Salt Nanoformulations.

Embodiment 2

[0069] 40kg green 21 and 22.4kg water were prepared to obtain a binary solution;

[0070] Put 2kg of zein in the binary solution to fully dissolve;

[0071] Under the condition that the rotating speed is 220r / min, 1kg sodium tripolyphosphate and 4kg emamectin benzoate are placed in the binary solution and fully stirred and dissolved.

[0072] 2kg 100-LQ-TH (mainly composed of phosphoric acid esters) is placed in the binary solution, and the remaining water is added to the binary solvent (to make up to 100kg) to obtain zein-based emamectin Benzoate Nanoformulations.

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Abstract

The invention provides a zein-based emamectin benzoate nano preparation and a preparation method thereof. The zein-based emamectin benzoate nano preparation comprises the following components in percentage by mass: 1-5 parts of emamectin benzoate; 1-5 parts of zein; 1-5 parts of a phosphoric acid compound; 40-50 parts of a solvent; and 30-50 parts of water. The zein-based methylamino abamectin benzoate nano preparation has small influence on the environment, and has high effect and utilization rate.

Description

technical field [0001] The invention relates to the technical field of pesticides, in particular to a zein-based emamectin benzoate nano-preparation and a preparation method thereof. Background technique [0002] Emamectin benzoate has the advantages of good biological activity, easy degradation and no pollution. It is currently used in the control of vegetables and grain pests, and can effectively control Lepidoptera, Homoptera and Coleoptera pests and various Vegetable root-knot nematodes. However, emamectin benzoate is a new type of high-efficiency semi-synthetic antibiotic synthesized from the fermentation product abamectin B1. Its melting point is 141°C-146°C, and its solubility in water at 20°C is 0.024g / L, insoluble in hexane, soluble in organic solvents such as methanol and methylene chloride, easy to decompose under ultraviolet light, if exposed to the environment, affected by environmental factors such as light, air, rain, generally have poor efficacy, The probl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/22A01N43/90A01P1/00A01P3/00A01P7/04
CPCA01N25/22A01N43/90
Inventor 邹汶廷劳颖蕖廖联安
Owner HUIZHOU YINNONG TECH
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