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Preparation method of sporopollen-based copper preparation pesticide carrier

A sporopollenin and copper preparation technology, which is applied in botany equipment and methods, chemicals for biological control, biocides, etc., can solve problems such as difficult modification or processing, and limited application range of sporopollenin. To achieve the effect of expanding the scope of application

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of sporopollenin microcapsules mostly uses the acid hydrolysis method, and the obtained sporopollenin microcapsules have strong mechanical strength and chemical inertness, and it is difficult to further modify or process, which limits the application range of sporopollenin

Method used

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  • Preparation method of sporopollen-based copper preparation pesticide carrier
  • Preparation method of sporopollen-based copper preparation pesticide carrier
  • Preparation method of sporopollen-based copper preparation pesticide carrier

Examples

Experimental program
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Effect test

Embodiment 1

[0047] In step 1, rape pollen (100g, Henan Zhuoyu Bee Industry Co., Ltd.) was placed in hot acetone (80mL, 50°C, Sinopharm Holding Co., Ltd.) and stirred (220rpm) for 2h, then poured out through acetone, and 1 liter of water was added and stirred for 10 hours. After that, the water was removed by vacuum filtration, and the washed pollen was stirred and refluxed in acetone (80 mL, 50° C.) for 2 h. After that, the pollen was collected by vacuum filtration, transferred to a glass dish, and dried in a fume hood. Get defatted pollen.

[0048] Step 2, adding defatted pollen (20 g) to 85% (v / v) phosphoric acid (100 mL, Sinopharm Holding Co., Ltd.), and keeping stirring and refluxing at 80° C. for 2 hours to degrade the spore protoplasmic components and obtain sporopollen The sporopollenin microcapsules were collected by vacuum filtration and washed successively with the following solvents (50 mL): water (twice), acetone (twice) and ethanol (twice), and the sporopollenin microcapsules...

Embodiment 2

[0054] Step 1, put camellia pollen (100g) in hot acetone (200mL, 50°C) and stir (220rpm) for 2h, then pour out acetone, add 1 liter of water and stir for 10 minutes, then remove the water by vacuum filtration, wash with water The pollen was stirred and refluxed again in hot acetone (200 mL, 50° C.) for 2 h, and then the pollen was collected by vacuum filtration, transferred to a glass dish, and dried in a fume hood to obtain defatted pollen.

[0055]Step 2, adding defatted pollen (20 g) into 85% (v / v) phosphoric acid (200 mL), and keeping stirring and refluxing at 80° C. for 5 hours to degrade the sporozoite components and obtain sporopollen microcapsules. The sporopollenin microcapsules were collected by vacuum filtration and washed successively with the following solvents (50 mL): water (twice), acetone (twice) and ethanol (twice), the sporopollenin microcapsules were transferred to a glass dish and Dry in a fume hood.

[0056] Step 3, add sporopollenin microcapsules (10g) ...

Embodiment 3

[0058] Step 1, put pine pollen (100g) in hot acetone (200mL, 50°C) and stir (220rpm) for 0.5h, then pour out acetone, add 1 liter of water and stir for 10 minutes, and then remove the water by vacuum filtration. The washed pollen was stirred and refluxed again in hot acetone (200 mL, 50° C.) for 0.5 h, and then the pollen was collected by vacuum filtration, transferred to a glass dish, and dried in a fume hood to obtain defatted pollen.

[0059] Step 2, adding defatted pollen (20 g) into 75% (v / v) phosphoric acid (60 mL), and keeping stirring and refluxing at 80° C. for 8 hours to degrade the sporozoites and obtain sporopollen microcapsules. The sporopollenin microcapsules were collected by vacuum filtration and washed successively with the following solvents (50 mL): water (twice), acetone (twice) and ethanol (twice), and the sporopollenin microcapsules were transferred to a glass dish and placed in Dry in a fume hood.

[0060] Step 3, add sporopollenin microcapsules (10g) t...

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Abstract

The invention discloses a preparation method of a sporopollen-based copper preparation pesticide carrier. The preparation method adopts pollen as a raw material, and mainly comprises three steps of degreasing, spore protoplasm removal and oxidation treatment. According to the preparation method, sporopollen is decomposed into nano-particles and micro-particles through an oxidation method, meanwhile, the surface chemical composition of the sporopollen is changed, the sporopollen is applied to preparation of a copper preparation pesticide, and the application range of a sporopollen material is expanded. The prepared sporopollen ultrafine particles (USPs) are high in drug loading capacity, have the pH response characteristic on release of copper ions, and are high in release speed under the acidic condition and low in release speed under the alkaline condition.

Description

technical field [0001] The invention belongs to the field of pesticide preparation processing, and more particularly, the invention relates to a preparation method of a sporopollenin-based copper preparation pesticide carrier, and relates to the use of the copper preparation pesticide carrier. Background technique [0002] Sporopollenin widely exists in the outer wall of pollen / spores. The sporopollenin microcapsules (SECs) obtained by extraction are used as carriers of drugs or proteins due to their abundant sources, reproducibility and high toughness. The application of sporopollenin as a pesticide carrier has not been reported yet. At present, the preparation of sporopollenin microcapsules mostly adopts the acid hydrolysis method, and the obtained sporopollenin microcapsules have strong mechanical strength and chemical inertness, and are difficult to be further modified or processed, which limits the application range of sporopollenin. SUMMARY OF THE INVENTION [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/10A01N59/20A01P1/00B82Y30/00B82Y40/00
CPCA01N25/10A01N59/20B82Y30/00B82Y40/00
Inventor 范腾飞李宝聚石延霞谢学文柴阿丽李磊
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