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Sand land cypress micro emulsion and its manufacturing method

A manufacturing method and a technology for sand cypress, applied in the fields of botanical equipment and methods, biocides, animal repellants, etc., can solve the problems of high pest efficiency, poor environmental compatibility, small environmental impact, etc., and achieve high pest efficiency and environmental compatibility. Good capacitance and low environmental impact

Inactive Publication Date: 2004-12-22
HARMLESS PESTICIDE RES & SERVICE CENT XIBEI AGRI FORESTRY SCIEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Sand cypress is an excellent insecticidal plant, which is highly effective against pests, safe for humans and animals, and has little impact on the environment. If the environmental compatibility of its preparation form is poor, it will not be able to fully reflect the advantages of sand cypress insecticides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: the preparation of 0.15% podophyllotoxin microemulsion

[0020] Weigh 10 kg of cypress extract (containing 1.5% podophyllotoxin), add 10 kg of dimethyl sulfoxide, 14 kg of 95% ethanol, 10 kg of OP-10, 6 kg of DBS-Ca and 50 kg of kg of deionized water; after mixing evenly, stir and heat to 75°C, and after the stirring system becomes a homogeneous liquid, cool to room temperature to obtain 0.15% podophyllotoxin microemulsion.

Embodiment 2

[0021] Embodiment 2: the preparation of 0.3% podophyllotoxin microemulsion

[0022] Take by weighing 20 kilograms of cypress extract (containing podophyllotoxin 1.5%), add 12 kilograms of dimethyl sulfoxide successively under high-speed stirring, 12 kilograms of 95% ethanol, 12.5 kilograms of OP-10, 7.5 kilograms of DBS-Ca and 48 kg of deionized water; after mixing evenly, stir and heat to 75°C, and after the stirring system becomes a homogeneous liquid, cool to room temperature to obtain 0.3% podophyllotoxin microemulsion.

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PUM

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Abstract

An insecticide in the form of microemulsion is prepared from the sand-land cypress' extract containing podophyllotoxin, emulsifier, antifreezing agent and water through adding emulsifier to said extract, high-speed stirring while adding others, and stirring while heating at 70-80 deg.C. Its advantages are high effect and high safety.

Description

1. Technical field: [0001] The invention relates to an insecticide, in particular to a sandy cypress microemulsion with podophyllotoxin in the sandy cypress extract as an active ingredient and a manufacturing method thereof. 2. Background technology: [0002] The Pollution-free Pesticide Research Service Center of Northwest A&F University first discovered the biological activity of Cypress cypress in 1990, and conducted systematic research on the insecticidal activity of Cypress cypress. agent and its manufacturing method", and has been granted a patent, patent number: ZL94105885.9. Through further research on the insecticidal active substances of Cypress sativa, three monomeric compounds were isolated from it, and the structural identification proved that these three compounds were podophyllotoxin, deoxypodophyllotoxin and β-podophyllotoxin, and determined Podophyllotoxin is the main active ingredient in cypress. [0003] Through further research on the relationship betwe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/06
Inventor 周一万陈安良冯俊涛李广泽马志卿何军张兴
Owner HARMLESS PESTICIDE RES & SERVICE CENT XIBEI AGRI FORESTRY SCIEN
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