Photosensitive biological germicide of perylene quinone and its prepn.

A technology of biological fungicides and derivatives, which is applied in the direction of fungicides, biocides, chemicals for biological control, etc., to achieve the effects of less resistance, protection of life and health, and excellent effects

Inactive Publication Date: 2003-01-08
张红雨 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the use of phytochromes, especially PQD, as a fungicide has not been reported, which prompted us to develop a new type of biological fungicide with PQD as an active ingredient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (Preparation of the original drug) 1 kg of the original medicinal material of bamboo red fungus, crushed to 100 mesh, added 10 L of ethanol with a content of 95%, soaked at room temperature for 12 hours, heated and refluxed for 120 minutes, filtered after reflux, discarded the medicinal residues, and evaporated 90% of the filtrate Solvent, when the remaining one-tenth of the volume, 1 kg of stock solution of ethanol extract of hypocrellin is obtained. Bamboo red fungus has another name called Hypocreta bamboo, Amomum bamboo, bamboo fruit, and bamboo flower (Yunnan). The shape of Hypocrella bambusae (BetBr). Sace bamboo red fungus raw material varies with the place of origin, as small as soybeans, as large as peanuts, and approximately spherical. Hypocrellin A containing about 4% in Hypocrellin alcohol extract, Hypocrellin A (Hypocrellin A), is 4,9-dihydroxy-3,10-perylenequinone derivatives, its molecular formula is C30H26O10, Molecular weight 546.

[0048] It also con...

Embodiment 2

[0055] Example 2 (preparation of original medicine) 1 kg of the original medicinal material of bamboo yellow, crushed to 100 mesh, added 10 L of 95% ethanol, soaked at room temperature for 12 hours, then heated and refluxed for 120 minutes, filtered after reflux, discarded medicinal residues, and evaporated 90% of the filtrate solvent until the remaining one-tenth of the volume is obtained, 1 kg of the stock solution of hypocrellin alcohol extract is obtained. Bambusicola, also known as bamboo red dumpling, bamboo red spot fungus, bamboo cocoon, bamboo ginseng, bamboo flower, light bamboo yellow, bamboo notoginseng, etc., is a fungus of the genus Bambusicola (Sharaia bambusicola P .Henn). The color and shape of bamboo yellow are similar to peanuts, but they are all spherical.

[0056] Bamboo xanthan alcohol extract contains about 0.8% hypocrellin A, hypocrellin A (Hypocrellin A), is 4,9-dihydroxy-3,10-perylenequinone derivatives, its molecular formula is C30H26O10, Molecular w...

Embodiment 3

[0058] Example 3 (original drug, preparation) is extracted from the PQD-producing fungus produced by fermentation. For the fermentation method, refer to the patent applied by Liu Weizhong and Zhang Hongyu: "Liquid Fermentation Technology of Perylenequinone Compound-producing Fungi", application number: 01135155.1; or document: Liu Weizhong et al. Journal of Yunnan University, 2000, 22: 389-391. Extract with fermented mycelia, and the extraction method is the same as when extracting from bamboo red fungus. Obtain the alcohol extract containing the corresponding perylenequinone derivative photosensitive biological fungicide, (preparation of the fungicide) is the same as in Example 1.

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PUM

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Abstract

The present invention relates to a perylene quinone derivative light-sensitive biological fungicide and its preparation method. It is characterized by that its contained main component is organic solvent extract solution of a series of derivative which uses 4-hydroxy-3,10-perylene quinone as active centre and includes hypocrellin A.B. elsinochrome A.B.C, phleichrome, cercosporin, cladosporin A,B,C,D, erythroaphin A,B, hypericin and stentorin, etc. and its auxiliary component is non-ionic surfactant, and the solvent is water. Its weight composition is main component; auxiliary component=1:1-3, the rest is water. It can effectively inhibit the growth of various fungi, and is applicable to various vegetables, fruits and flowers.

Description

Technical field [0001] The invention belongs to the category of photosensitive biocide, and in particular relates to a perylenequinone derivative photosensitive biocide and a preparation method thereof. Background technique [0002] Pesticide is a huge industry with great market demand. At present, although the variety, output, and output value of chemical pesticides still dominate, due to the various drawbacks of chemical pesticides, their market has stagnated and experienced negative growth, replaced by vigorously developing biological pesticides. [0003] The use of photosensitization of phytochrome to achieve the purpose of killing insects and bacteria is the frontier topic of biopesticide research. Photosensitization or photodynamic action refers to the phenomenon that pigments produce a series of active oxygen and free radicals under light conditions, thereby causing damage to organisms. Due to the dual selectivity of pigment and light, biopesticides with photosensit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N31/14A01N35/06A01P3/00
CPCA01N65/44A01N65/00A01N63/00A01N65/08A01N63/04A01N35/06
Inventor 张红雨刘为忠
Owner 张红雨
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