Method for extracting bactericide from wintergreen

A technology of staghorn grass and fungicides, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of polluted environment, drug resistance, poor bacteriostatic effect of chemical reagents, etc.

Inactive Publication Date: 2009-04-08
王占斌
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for extracting fungicides from wintergreen to solve the problems of poor antibacterial effect, environmental pollution and drug resistance in existing chemical reagents used to prevent and control agricultural and forestry diseases

Method used

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  • Method for extracting bactericide from wintergreen

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specific Embodiment approach 1

[0008] Specific Embodiment 1: The method for extracting fungicides from wintergreen in this embodiment is realized according to the following steps: 1. Wash and dry the whole plant of wintergreen and then pulverize it at a temperature of 50-70°C to obtain wintergreen Grass pulverization; 2. Place the wintergreen pulverization in an extraction device, then add a mixed solution of water and an organic solvent, and carry out reflux extraction at a temperature of 60-100°C for 7-10 hours to obtain a mixed extract; 3. 1. Concentrate and remove impurities from the mixed extract to obtain the fungicide extracted from wintergreen.

[0009] In step 1 of this embodiment, the pulverization under the condition of temperature of 50-70° C. is realized by the original Taiqi air-guided pulverizer produced by Youqi Co., Ltd.

[0010] The extraction device in step 2 of this embodiment is a Soxhlet extraction apparatus.

[0011] The purpose of concentrating and removing impurities in Step 3 of t...

specific Embodiment approach 2

[0012] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that in step 1, the whole wintergreen plant is washed, dried and then pulverized at a temperature of 60°C. Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0013] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 is that the particle size of the ground wintergreen in step 1 is 80 mesh. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention provides a method for extracting bactericide from wintergreen, which relates to a method for extracting bactericide from plants, and solves the problems that the prior chemical reagent used for preventing and controlling agriculture and forestry diseases is poor in antibacterial effects, pollutes environment and produces insecticide resistance. The method comprises the following steps of 1: grinding wintergreen; 2: preparing a mixed extract; and 3: performing concentration and impurity removal to the mixed extract, and then obtaining wintergreen-extracted bactericide. The method has the advantages that wintergreen-extracted bactericide obtained by the method belongs to biological preparations; after the wintergreen-extracted bactericide is sprayed on plants or in environment, environment pollution can not happen due to no residue; pathogenic bacteria are insusceptible to produce insecticide resistance to the bactericide after use; and the bactericide has broad spectrum antibacterial activity and plays a role in inhibiting various plant pathogenic fungi.

Description

technical field [0001] The invention relates to a method for extracting fungicides from plants. Background technique [0002] Nowadays, plant diseases have become one of the important biological disasters in agricultural and forestry production, and the area and degree of damage of plant diseases are increasing year by year. At present, chemical agents are often used in the prevention and control of agricultural and forestry diseases, but the antibacterial effect is poor. Because of the long-term use of chemical agents in large quantities, the increase in the frequency and dose of use not only promotes the resistance of pathogenic bacteria to a certain extent, but also makes the environment gradually The accumulation of a large amount of pesticides, especially in the soil environment, has produced a series of serious problems such as pesticide pollution of the environment, making pesticide pollution a serious environmental problem in the world today. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/00A01P3/00
Inventor 王占斌彭巍祝长龙
Owner 王占斌
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