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Lycoris radiata bulb extractive pesticide and method for preparing extractive

A technology of lycoris bulbs and plant insecticides, which is applied in the directions of botanical equipment and methods, insecticides, biocides, etc., can solve problems such as the advent of products and no pesticides, and achieves increased added value, simple equipment and methods. Easy and safe to use

Inactive Publication Date: 2012-08-01
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 Lycoris bulbs to a moisture content of 10%, crush them into 30-mesh powder, and weigh 200kg of crushed product; extract with 500kg of methanol in a reflux extraction kettle at a temperature of 50°C for 12 hours, and centrifuge to obtain the extract; The vacuum concentration is finished when the concentrated solution is close to 200kg, and 200kg of Lycoris bulb extract is obtained for use.

[0024] 80 kg of Lycoris bulb extract prepared above, 30 kg of methanol, and 20 kg of calcium dodecyl sulfonate were added to the reactor in sequence, and the mixture was stirred evenly to obtain the insecticidal cream.

[0025] Using the above-prepared Lycoris radiata bulb extract 40kg, ethanol 15kg, nonylphenol polyoxyethylene ether 16kg, and deionized water 50kg, first add the first three raw materials into the reactor, heat to 45°C, stir to fully dissolve; Under high-speed stirring (400-800r / min), slowly add deionized water, and stir at constant temperature after addition for 0...

Embodiment 2

[0027] Dry the bulb of Lycoris radiata to 8% moisture content, crush it into 40 mesh powder, weigh 80kg of pulverized product; use 240kg of ethanol, extract at 60℃, the rest is the same as in Example 1, and finally concentrate it to obtain Lycoris radiata 80kg of bulb extract is reserved.

[0028] 30kg of Lycoris bulb extract prepared above, 20kg of ethanol, and 10kg of nonylphenol polyoxyethylene ether were added to the reaction kettle in sequence, and stirred evenly to obtain insecticidal cream.

[0029] 20 kg of Lycoris bulb extract prepared above, 5 kg of isopropanol, 5 kg of ethyl acetate, 10 kg of dimethyl sulfoxide, 15 kg of calcium dodecyl sulfonate, 5 kg of nonylphenol polyoxyethylene ether phosphate, Deionized water 40kg, first add the first 6 kinds of raw materials into the reactor, heat to 50°C, stir to fully dissolve; under high-speed stirring (400-800r / min), slowly add deionized water. After the addition, the insecticidal microemulsion was obtained by stirring at a c...

Embodiment 3

[0031] Dry the Lycoris bulbs to a moisture content of 5%, pulverize them into 45 mesh powder, weigh 100kg of pulverized product; use 1500kg ethyl acetate, extract at 70°C, the rest is the same as in Example 1, and finally concentrate to obtain 100kg of Lycoris bulb extract is reserved.

[0032] Use the above-prepared Lycoris radiata bulb extract 79kg, methanol 10kg, isopropanol 5kg, ethyl acetate 10kg, dimethyl maple 10kg, octylphenol polyoxyethylene ether 5kg, nonylphenol polyoxyethylene ether phosphate 5kg and 5kg of octylphenol polyoxyethylene ether phosphate are sequentially added to the reaction kettle and stirred evenly to obtain insecticidal cream.

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

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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 Applications(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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