Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Waltheria indica microemulsion as well as preparation method and application thereof

A technology of scorpion and microemulsion, which is applied in the field of botanical pesticides, can solve problems such as poor control and loss, and achieve the effects of suppressing deterioration, reducing costs, and ensuring environmental safety

Inactive Publication Date: 2021-11-16
HAINAN UNIVERSITY
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, downy mildew of litchi is easy to occur and prevail during the flowering period, fruit color change and ripening period, and poor control will cause heavy losses.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Waltheria indica microemulsion as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of embodiment 1 snake woman microemulsion

[0028] 1.1 Preparation of Snakewort Extract

[0029] Crush the aboveground part of Shepozi and pass it through a 40-mesh sieve to obtain a powder; soak and extract the crushed product with ethyl acetate and methanol at a volume ratio of 1:5 for 24 hours; the solid-liquid ratio of the crushed product to ethyl acetate and methanol kg / L is 1:6, then filter to get the clear liquid, evaporate to dryness with a rotary evaporator at 50°C, and concentrate the extract into a paste to obtain the extract of Snakewort. Repeat this three times to get the Snake Lady extract.

[0030] 1.2 Formula

[0031] 5% of Snakewort extract, 10% of organic solvent, 10% of emulsifier, and 75% of water.

[0032] Ethyl acetate, ethanol and methanol at a mass ratio of 1:1:5 as organic solvents, castor oil polyoxyethylene ether 40, polyoxyethylene oleate and dodecylamine polyoxyethylene at a mass ratio of 2:1:1 Ether is the emulsifier, a...

Embodiment 2

[0039] The preparation of embodiment 2 snake woman microemulsion

[0040] 1.1 Preparation of Snakewort Extract

[0041] Crush the aboveground part of Shepozi and pass through a 40-mesh sieve to obtain a powder; soak and extract the crushed product with ethyl acetate and methanol at a volume ratio of 1:4 for 36 hours; the solid-liquid ratio of the crushed product to ethyl acetate and methanol kg / L is 1:5, then filter to get the clear liquid, evaporate to dryness with a rotary evaporator at 50°C, and concentrate the extract into a paste to obtain the extract of Snakewort. Repeat this three times to get the Snake Lady extract.

[0042] 1.2 Formula

[0043] 5% of Snakewort extract, 10% of organic solvent, 10% of emulsifier, and 75% of water.

[0044] Ethyl acetate, ethanol and methanol at a mass ratio of 1:0.8:6 as organic solvents, castor oil polyoxyethylene ether 40, polyoxyethylene oleate and dodecylamine polyoxyethylene at a mass ratio of 2:0.8:1.2 Ether is the emulsifier...

Embodiment 3

[0051] The preparation of embodiment 3 cobra microemulsion

[0052] 1.1 Preparation of Snakewort Extract

[0053] Crush the aboveground part of Shepozi and pass it through a 40-mesh sieve to obtain a powder; soak and extract the crushed product with ethyl acetate and methanol at a volume ratio of 1:6 for 18 hours; the solid-liquid ratio of the crushed product to ethyl acetate and methanol kg / L is 1:7, then filter to get the clear liquid, evaporate to dryness with a rotary evaporator at 50°C, and concentrate the extract into a paste to obtain the extract of Snakewort. Repeat this three times to get the Snake Lady extract.

[0054] 1.2 Formula

[0055] 5% of Snakewort extract, 10% of solvent, 10% of emulsifier, and 75% of water.

[0056] Ethyl acetate, ethanol and methanol at a mass ratio of 1:1.2:4 are used as solvents, castor oil polyoxyethylene ether 40, polyoxyethylene oleate and dodecylamine polyoxyethylene ether at a mass ratio of 2:1.2:0.8 For the emulsifier, choose ta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a waltheria indica micro-emulsion as well as a preparation method and application thereof. The micro-emulsion is prepared from the following raw materials: waltheria indica extract, an organic solvent, an emulsifier and water, wherein the waltheria indica extract is prepared by crushing the overground part of waltheria indica and conducting extracting with ethyl acetate and methanol; the organic solvent is a mixture of ethyl acetate, ethanol and methanol in a mass ratio of 1: (0.8-1.2): (4-6); the emulsifier is a mixture of castor oil polyoxyethylene ether 40, oleic acid polyoxyethylene ester and lauryl amine polyoxyethylene ether in a mass ratio of 2: (0.8-1.2): (0.8-1.2); and a mass ratio of the waltheria indica extract to the organic solvent to the emulsifier to the water is 1: (1.9-2.1): (1.9-2.1): (14.8-15.2). The waltheria indica microemulsion prepared by the invention has a prevention effect of 94% or more on peronophythora litchii, and can significantly inhibit the deterioration of peronophythora litchii.

Description

technical field [0001] The invention relates to the field of botanical pesticides, in particular to a snake-pod microemulsion and its preparation method and application. Background technique [0002] Pesticides have made great contributions to the prevention and control of crop diseases, insect pests and weeds. Due to the rapid development of pesticides, the increasing awareness of human protection of the living environment, and the shortcomings of chemical pesticides, the development of chemical pesticides is becoming more and more difficult. The abuse of pesticides has seriously threatened the sustainability of agriculture and global food security, so there is an urgent need for new pesticides that are safe, have no toxic side effects, and do not pollute the environment. Natural products and their analogs extracted from plants play a very important role in the control of various plant pathogens. Biopesticides are biodegradable and have low residual toxicity to mammals and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01N65/08A01N25/04A01N25/02A01N25/30A01P3/00
CPCA01N65/08A01N25/04A01N25/02A01N25/30A01N65/00
Inventor 孙然锋尹丰满胡展谢佳
Owner HAINAN UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com