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Plant bactericide composition based on lactoperoxidase system

A lactoperoxidase, plant fungicide technology, applied in the directions of fungicides, plant growth regulators, biocides, etc., can solve the problems of inability to meet plant disease control, poor environmental adaptability, weak bactericidal ability, etc. Evaporation, low cost, small effect of activity loss rate

Active Publication Date: 2013-08-28
北京依科曼生物技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In summary, the lactoperoxidase system cannot meet the needs of plant disease control due to factors such as poor stability of the main component lactoperoxidase and hydrogen peroxide source, weak bactericidal ability, poor environmental adaptability, and short duration of effect.

Method used

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  • Plant bactericide composition based on lactoperoxidase system
  • Plant bactericide composition based on lactoperoxidase system
  • Plant bactericide composition based on lactoperoxidase system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Plant fungicide 1: The mass percentages of each composition in plant fungicide 1 are: 36% for the biological fungicide substrate composition, 50% for the oxidizing agent composition, and 14% for the bactericidal auxiliary composition. in,

[0031] Each component of the biocide substrate composition accounts for the mass percent of the biocide substrate composition as follows: 3% lactoperoxidase, 5% potassium rhodanide, 10% potassium iodide, 4% glycerol, 2% Tween -20, 5% dextran, 15% trehalose, 3% ethylene glycol, 6% calcium chloride, 2% potassium sorbate, and the rest is water. The pH value of the biocide substrate composition is adjusted to 9 with dipotassium hydrogen phosphate and potassium dihydrogen phosphate.

[0032] Each component of the oxidant composition accounts for the mass percentage of the oxidant composition as follows: 12% sodium percarbonate, 1.5% EDTA, 1.5% magnesium sulfate, 2% sodium silicate, 2% sodium carboxymethyl cellulose, 0.2% alginic acid, 2....

Embodiment 2

[0045] Plant fungicide 2: the mass percentages of each composition in plant fungicide 2 are: 43% for the biological fungicide substrate composition, 36% for the oxidizing agent composition, and 21% for the bactericidal auxiliary composition. in,

[0046] Each component of biocidal agent substrate composition accounts for the mass percent of biological antimicrobial agent substrate composition as follows: 0.01% lactoperoxidase, 0.05% potassium rhodanide, 0.1% potassium iodide, 0.01% glycerol, 0.01% Tween -20, 2.5% dextran, 7.5% trehalose, 1.5% ethylene glycol, 3% calcium chloride, 1% potassium sorbate, the rest is water. The pH value of the biocide substrate composition is adjusted to 8 with dipotassium hydrogen phosphate and potassium dihydrogen phosphate.

[0047] Each component of the oxidant composition accounts for the mass percentage of the oxidant composition as follows: 0.1% sodium percarbonate, 0.1% EDTA, 0.1% magnesium sulfate, 1% sodium silicate, 1% sodium carboxyme...

Embodiment 3

[0060] Plant fungicide 3: the mass percentages of each composition in plant fungicide 3 are: 50% of the biological fungicide substrate composition, 42% of the oxidizing agent composition, and 8% of the bactericidal auxiliary composition. in,

[0061] Each component of the biocide substrate composition accounts for the mass percent of the biocide substrate composition as follows: 1.5% lactoperoxidase, 2.5% potassium rhodanide, 5% potassium iodide, 2% glycerol, 1% Tween -20, 3.75% dextran, 11% trehalose, 2.25% ethylene glycol, 4.5% calcium chloride, 1.5% potassium sorbate, the rest is water. The biocidal agent substrate composition is adjusted with dipotassium hydrogen phosphate and potassium dihydrogen phosphate to adjust the pH value to 7.

[0062] Each component of the oxidant composition accounts for the mass percentage of the oxidant composition as follows: 3% sodium percarbonate, 0.8% EDTA, 0.8% magnesium sulfate, 0.1% sodium silicate, 0.1% sodium carboxymethyl cellulose,...

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Abstract

The invention discloses a plant bactericide composition based on a lactoperoxidase system, and belongs to the field of plant disease control. The plant bactericide composition is prepared from the following components by mass percentage: 36-50% of biological bactericide substrate composition, 36-50% of oxidizing agent composition and 8-25% of sterilization additive composition. According to the plant bactericide composition, a lactoperoxidase protective agent is added in the biological bactericide substrate composition, a sodium carbonate stabilizer is added in the oxidizing agent composition, and a proper amount of sterilization additive is added as the important substance of the plant bactericide composition, so that synergistic interaction of various effective ingredients in the composition is realized, and the control efficiency on plant pathogenic microorganisms is remarkably improved. The plant bactericide composition has the characteristics of being strong in bactericidal power, good in sterilizing effect, long in lasting period and free from environmental influence, and meets the actual demand in the field of plant disease control.

Description

Technical field: [0001] The invention belongs to the field of plant disease prevention and control, and in particular relates to a plant fungicide composition based on a lactoperoxidase system. Background technique: [0002] Lactoperoxidase system, as a new bactericide, mainly includes: lactoperoxidase, halides or halide-like compounds (except X-, SCN-, Cl-), hydrogen peroxide (H 2 0 2 ) three parts. Its bactericidal mechanism is that lactoperoxidase (LPO) catalyzes H 2 0 2 Oxidation of SCN- to generate OSCN- or HOSCN. OSCN- and HOSCN respectively affect the metabolism by forming disulfide bonds to destroy the cell membrane structure or penetrate the cell membrane and oxidize the functional groups of intracellular proteins to achieve the purpose of antibacterial. At the same time, lactoperoxidase can also catalyze H 2 0 2 Oxidation of I- produces IO-, which reacts with the components of plant pathogenic bacteria, thereby inhibiting the growth of cells. As the core c...

Claims

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Application Information

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IPC IPC(8): A01N63/02A01P3/00A01N25/22
Inventor 梁兴慧邓青贺倩杜进平周震
Owner 北京依科曼生物技术股份有限公司
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