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Application of antifungal Chinese herbal medicine as wood mildew preventive and wood mildew preventive

A kind of antifungal agent and antifungal technology, which is applied in the direction of wood impregnation, impregnated wood, wood processing utensils, etc., can solve the problems of high toxicity of mammals, affecting the appearance of wood, and great harm to human body, etc., and achieves good antifungal effect and low price , high safety effect

Inactive Publication Date: 2014-11-19
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pentachlorophenol homologues and their sodium salts have a better effect on molds, but are highly toxic to mammals and contain a small amount of highly toxic substance dioxin
[0004] In the past research results, sodium pentachlorophenate, creosote oil, copper chromium arsenic series salts, etc. were often used. Although they can effectively prevent mildew, they are highly toxic and harmful to humans; and copper salt series anti-mold preservatives have Color, which affects the appearance of the wood and is thus limited in application

Method used

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  • Application of antifungal Chinese herbal medicine as wood mildew preventive and wood mildew preventive
  • Application of antifungal Chinese herbal medicine as wood mildew preventive and wood mildew preventive
  • Application of antifungal Chinese herbal medicine as wood mildew preventive and wood mildew preventive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Aspergillus niger was selected as the experimental strain, and 6.5 grams of traditional Chinese medicines such as Artemisia argyi, Chenpi, Huoxiang, Coptidis, Chuanjiao, and Shegan were soaked in 500ml of absolute ethanol for 2 hours, and then microwaved for 10 minutes. For Aspergillus niger, observe the bacteriostatic effect of 6 kinds of medicaments on black mold. When the death percentage of Aspergillus niger exceeds 90%, the important concentration corresponding to 90% is its minimum inhibitory concentration. See Table 1 for details.

[0018] Table 1

[0019]

[0020] It is found from Table 1 that the minimum inhibitory concentrations of the agents are: Chenpi 5mg / ml, Artemisia argyi 5mg / ml, Huoxiang 4mg / ml, Coptidis 4mg / ml, Chuanjiao 6.5mg / ml, Shegan 6mg / ml.

experiment example 1

[0022] This experimental example uses various Chinese medicines as raw materials, and uses the method of Example 1 to prepare and obtain the minimum inhibitory concentration of each Chinese medicine (respectively: tangerine peel 5mg / ml, Artemisia argyi 5mg / ml, Huoxiang 4mg / ml, Coptidis 4mg / ml , Chuanjiao 6.5mg / ml, Shegan 6mg / ml), under the condition of described minimum inhibitory concentration, observe the antibacterial effect to various fungi, specifically see Table 2.

[0023] Table 2

[0024] Mortality (%)

[0025] It is found from Table 2 that after soaking in absolute ethanol for 2 hours, and then microwave for a certain period of time, the minimum inhibitory concentrations of the agents are: Huoxiang 4mg / ml, Artemisia argyi 5mg / ml, Chenpi 5mg / ml, Coptis 4mg / ml , Chuanjiao 6.5mg / ml, and Shegan 6mg / ml, the antibacterial effect on various fungi is obvious.

Embodiment 2

[0027] Aspergillus niger was selected as the experimental strain, and 6.5 grams of traditional Chinese medicines such as Artemisia argyi, Chenpi, Huoxiang, Coptidis, Chuanjiao, and Shegan were soaked in 500ml of absolute ethanol for 2 hours, and then microwaved for 10 minutes. For Aspergillus niger, observe the bacteriostatic effect of 6 kinds of agents on black mold. When the death percentage of Aspergillus niger exceeds 90%, the important concentration corresponding to 90% is its minimum inhibitory concentration. See Table 3 for details.

[0028] table 3

[0029]

[0030] It is found from Table 3 that the minimum inhibitory concentrations of the agents are: Chenpi 6mg / ml, Artemisia argyi 5.5mg / ml, Huoxiang 5mg / ml, Coptidis 4.5mg / ml, Chuanjiao 8mg / ml, Shegan 7mg / ml. .

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Abstract

The invention provides an application of antifungal Chinese herbal medicine as a wood mildew preventive and the wood mildew preventive. The Chinese herbal medicine comprises one of tangerine peel, folium artemisiae argyi, wrinkled gianthyssop herb, coptis root, capsicum annuum and blackberry lily. The application of the antifungal Chinese herbal medicine as the wood mildew preventive has pharmacological antibacterial, antimicrobial and antifungal effects, the Chinese herbal medicine is an environment-friendly material which is low in cost and has a simple preparation process, energy consumption can be reduced, the Chinese herbal medicine can be called an absolute green resource, and the environmental safety is high.

Description

technical field [0001] The invention relates to the technical field of wood anti-mold, in particular to a wood anti-mold agent. Background technique [0002] The mildew resistance of wood has always been a difficult problem in wood processing, and many scholars have studied the theory and application process. The reason why wood will become mildew is that there are nutrients necessary for mold in wood, that is, monosaccharides, starch, hemicellulose, water, etc.; in addition, the acidity of wood (ph is 4.0-6.5) is just suitable for the needs of fungi , Temperature and oxygen are also essential conditions for the survival of mold. Since the result of wood mildew is only to discolor the wood surface, and the range of discoloration is relatively shallow, it can be removed with a brush or by planing off the surface layer. Mildew has little effect on the quality of the wood itself and is usually not considered a defect. However, after mold infects wood, it can increase the per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/50
Inventor 王雅梅王喜明刘添娥
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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