Method for preparing protein biological pesticide

A biopesticide and protein technology, which is applied in the field of protein biopesticide preparation, can solve the problems of increased production cost, high hardness, and reduced toxicity of raw powder, and achieve low production cost, easy operation, and product toxicity. high price effect

Inactive Publication Date: 2006-06-28
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

The raw powder (<74 μm) of solid-state fermented Bt not only contains effective ingredients such as paraspore crystals, spores, and exotoxins, but also contains unconsumed fermentation raw materials. Some raw materials (such as chaff) h

Method used

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  • Method for preparing protein biological pesticide

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Experimental program
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Embodiment Construction

[0009] (1) react according to table 1 conditions

[0010] Table 1 Reaction conditions of protein biopesticides

[0011]

[0012] (2) After the reaction is completed, filter, and the filtrate is the protein biopesticide stock solution;

[0013] (3) stock solution is dried, obtains protein biopesticide former powder;

[0014] (4) Various pesticide dosage forms can be prepared by using the original liquid and the original powder as raw materials;

[0015] (3) The original solution, original powder and various dosage forms are sealed and packaged, stored at room temperature, and the shelf life is 3 years.

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Abstract

A protein-type biologic agricultural chemical for grain crops, cotton, vegetables, fruit tree, melon, etc is prepared through solid fermenting of Bacillus thuringinis, adding S-bond breaking agent and water, reaction, filtering, drying, and preparing wettable powder, water-dispersible form, or effervescent tablet.

Description

technical field [0001] The invention relates to the technical field of biopesticides, and in particular provides a preparation method of protein biopesticides. Background technique [0002] Biopesticide is an important guarantee for the safe production and export of agricultural products. It has developed rapidly in recent years. Bacillus thuringiensis (Bt) is a dominant biopesticide. Its production process is: Bt liquid (or solid state) fermentation, drying, Pulverize to obtain the original powder. Due to the high production cost, low product titer and large amount of waste water, liquid fermentation has gradually turned to solid-state fermentation (Fang Ping, Journal of Nanjing University of Technology. 2002: 6(24), 84-85). The raw powder (<74 μm) of solid-state fermented Bt not only contains active ingredients such as parasporal crystals, spores, and exotoxins, but also contains unconsumed fermentation raw materials. Some raw materials (such as chaff) are hard and tou...

Claims

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Application Information

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IPC IPC(8): A01N63/00A01N25/14A01N25/34
Inventor 弓爱君邱丽娜刘琪
Owner UNIV OF SCI & TECH BEIJING
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