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Lycoris radiata bulb extractive pesticide and method for preparing extractive

A technique for amaryllis bulbs and plant pesticides, applied in the direction of botany equipment and methods, pesticides, biocides, etc., can solve the problems of no pesticides and products coming out, and achieve simple and easy equipment and methods, and improve Added value, effect of safe use

Inactive Publication Date: 2013-04-10
江西金帆达生化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been some reports on the pharmacological effects of medicinal ingredients in Lycoris plants and the extraction and purification of galantamine, but there are no reports on the preparation of pesticides and the release of products

Method used

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  • Lycoris radiata bulb extractive pesticide and method for preparing extractive
  • Lycoris radiata bulb extractive pesticide and method for preparing extractive
  • Lycoris radiata bulb extractive pesticide and method for preparing extractive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Dry the bulbs of Lycoris bulbs until the water content is 10%, crush them into 30-mesh powder, and weigh 200kg of crushed matter; use 500kg of methanol to extract in a reflux extraction kettle at a temperature of 50°C for 12h, and obtain the extract after centrifugation; Vacuum concentration is completed when the concentrated solution is close to 200kg, and 200kg of Lycoris bulb extract is obtained, which is set aside.

[0024] Add 80kg of Lycoris bulb extract, 30kg of methanol and 20kg of calcium dodecylsulfonate prepared above into the reaction kettle in sequence, and stir evenly to obtain insecticidal cream.

[0025] Using 40kg of Lycoris bulb extract prepared above, 15kg of ethanol, 16kg of nonylphenol polyoxyethylene ether, and 50kg of deionized water, first add the first three raw materials into the reaction kettle, heat to 45°C, and stir to fully dissolve; Under high-speed stirring (400-800r / min), slowly add deionized water, and stir at a constant temperature for...

Embodiment 2

[0027] Dry Lycoris bulbs to a moisture content of 8%, crush them into 40-mesh powder, and weigh 80 kg of crushed material; use 240 kg of ethanol, extract at a temperature of 60 ° C, and use the same method as in Example 1 for the rest, and finally concentrate to obtain Lycoris. Bulb extract 80kg is standby.

[0028] Add 30kg of Lycoris bulb extract, 20kg of ethanol and 10kg of nonylphenol polyoxyethylene ether prepared above into the reaction kettle in sequence, and stir evenly to obtain insecticidal emulsifiable concentrate.

[0029] Lycoris bulb extract 20kg prepared above, isopropanol 5kg, ethyl acetate 5kg, dimethyl sulfoxide 10 kg, calcium dodecylsulfonate 15 kg, nonylphenol polyoxyethylene ether phosphate 5kg, 40kg of deionized water, first put the first 6 kinds of raw materials into the reaction kettle, heat to 50°C, stir to make them fully dissolved; under high-speed stirring (400-800r / min), slowly add deionized water. After adding, stir at constant temperature for 0....

Embodiment 3

[0031] Dry Lycoris bulbs to a water content of 5%, crush them into 45-mesh powder, and weigh 100 kg of crushed matter; use 1500 kg of ethyl acetate to extract at a temperature of 70 ° C, and the rest are the same as in Example 1, and finally concentrated to obtain Lycoris bulb extract 100kg for later use.

[0032] Lycoris bulb extract 79kg prepared above, methanol 10kg, isopropanol 5kg, ethyl acetate 10kg, dimethyl sulfoxide 10kg, octylphenol polyoxyethylene ether 5 kg, nonylphenol polyoxyethylene ether phosphate 5kg and 5kg of octylphenol polyoxyethylene ether phosphate were successively added into the reaction kettle, and stirred evenly to obtain insecticidal emulsifiable concentrate.

[0033] Using 40kg of Lycoris bulb extract prepared above, 12kg of methanol, 12kg of calcium dodecylsulfonate, and 40kg of deionized water, first add the first three raw materials into the reactor, heat to 55°C, and stir to fully dissolve; Under high-speed stirring (400-800r / min), slowly add ...

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Abstract

Provided are a lycoris radiata bulb extractive pesticide and a method for preparing an extractive. Lycoris radiata bulbs can be manufactured into the lycoris radiata bulb extractive pesticide in forms of missible oil, microemulsion, wettable powder and the like through certain processing procedures. The lycoris radiata bulb extractive pesticide has good insecticidal ovicidal activities to tetranychus, plutella xylostella, vegetable aphides, armyworms and pine wood nematodes and protective effect in fields and woodlands. The pesticide is remarkable in effect, low in toxicity and residuals, simple in preparing process, low in cost and suitable for popularization and application and accords with the development tendency of existing pesticides, and pests do not easily produce drug resistance.

Description

technical field [0001] The invention belongs to the field of plant-derived pesticides, in particular to a preparation method of an insecticide using Lycoris bulbs as a raw material and an extract thereof. Background technique [0002] Lycoris ( Lycoris radiata ) belongs to the monocot class Amaryllidaceae, Amaryllidaceae plants have long been used as medicinal plants to treat diseases and injuries. It can also be used for sore throat, carbuncle sores, scrofula, edema, etc. Lycorine is an isoquinoline alkaloid, a derivative of pyrrophenoridine. Studies in recent years have proved that lycorine has various effects such as anti-inflammation, anti-virus, anti-malarial, cardiovascular protection and induction of tumor cell apoptosis. There have been some reports on the pharmacological effects of medicinal ingredients in Lycoris plants and the extraction and purification of galantamine, but there are no reports on the preparation of pesticides and the release of products. Util...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N65/40A01P7/04
CPCY02A50/30
Inventor 郑培伟陈安良匡君根
Owner 江西金帆达生化有限公司
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