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Method for removing organophosphorus pesticide from surfaces of vegetables

An organophosphorus pesticide and vegetable technology, applied in the functions of food ingredients, food science, food ingredients, etc., can solve the problems of high pesticide content in vegetables, toxic health damage, etc., to reduce the amount of pesticide residues, simple operation, and degradation effect. Good results

Inactive Publication Date: 2017-05-24
防城港市质量技术监督局
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The toxicity of pesticides, especially organophosphorus pesticides, has caused serious damage to human health. Although health organizations and agricultural departments have banned or restricted the use of such pesticides, driven by interests, many unscrupulous businesses still use pesticides, resulting in pesticides in vegetables. high content

Method used

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  • Method for removing organophosphorus pesticide from surfaces of vegetables
  • Method for removing organophosphorus pesticide from surfaces of vegetables

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Randomly take 1Kg cabbage and spray the methamidophos solution until the pesticide residue on the cabbage surface is 1mg / kg;

[0018] A method for removing organophosphorus pesticides on the surface of vegetables includes the following steps:

[0019] (1) Soak the vegetables in clean water for 30 minutes, take them out, and set aside; the clean water contains potassium permanganate with a mass fraction of 0.1;

[0020] (2) Use the ultraviolet radiation device to irradiate the vegetables for 10 minutes to obtain the vegetables after ultraviolet radiation;

[0021] (3) Put the vegetables irradiated with ultraviolet rays in step (2) into clean water, and use ozone mixing equipment to add ozone to the water, and keep the ozone concentration at 10mg / L;

[0022] (4) The vegetables in step (3) are dynamically cleaned with salt water with bubbles, and the washing time is 5 minutes; the mass percentage of the salt water is 0.5%.

Embodiment 2

[0024] Randomly take 1Kg cabbage and spray malathion solution until the pesticide residue on the surface of cabbage is 1mg / kg;

[0025] A method for removing organophosphorus pesticides on the surface of vegetables includes the following steps:

[0026] (1) Soak the vegetables in clean water for 45 minutes, take them out, and set aside; the clean water contains potassium permanganate with a mass fraction of 0.5;

[0027] (2) Use the ultraviolet radiation device to irradiate the vegetables for 20 minutes to obtain the vegetables after ultraviolet radiation;

[0028] (3) Put the vegetables irradiated by ultraviolet rays in step (2) into clean water, and use ozone mixing equipment to add ozone to the water, and keep the ozone concentration at 20mg / L;

[0029] (4) The vegetables in step (3) are dynamically cleaned with salt water with bubbles, and the cleaning time is 10 minutes; the mass percentage of the salt water is 1.0%.

Embodiment 3

[0031] Randomly take 1Kg of cabbage and spray phorate solution until the pesticide residue on the surface of cabbage is 1mg / kg;

[0032] A method for removing organophosphorus pesticides on the surface of vegetables includes the following steps:

[0033] (1) Soak the vegetables in clean water for 40 minutes, take them out, and set aside; the clean water contains potassium permanganate with a mass fraction of 0.3;

[0034] (2) Use the ultraviolet radiation device to irradiate the vegetables for 15 minutes to obtain the vegetables after ultraviolet radiation;

[0035] (3) Put the vegetables irradiated with ultraviolet rays in step (2) into clean water, and use ozone mixing equipment to add ozone to the water, and keep the ozone concentration at 15mg / L;

[0036] (4) The vegetables in step (3) are dynamically cleaned with salt water with bubbles, and the cleaning time is 8 minutes; the mass percentage of the salt water is 0.8%.

[0037] The degradation effects of the methods in Examples 1-3 ...

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Abstract

The invention belongs to the technical field of pesticide residue and particularly relates to a method for removing an organophosphorus pesticide from surfaces of vegetables. The method for removing the organophosphorus pesticide from the surfaces of the vegetables comprises the following steps: (1) firstly, soaking the vegetables in clean water for 30 to 45 minutes, and taking out the soaked vegetables for later use; (2) irradiating the vegetables for 10 to 20 minutes by an ultraviolet ray irradiation unit, so as to obtain ultraviolet ray irradiated vegetables; (3) placing the ultraviolet ray irradiated vegetables obtained in the step (2) in clean water, adding ozone into the water by ozone mixing equipment, and keeping the ozone concentration to 10mg / L to 20mg / L; (4) carrying out dynamic bubble washing on the vegetables obtained in the step (3) for 5 to 10 minutes by salt water. According to the method, the operation is simple, and pesticides in the vegetables can be effectively degraded.

Description

Technical field [0001] The invention belongs to the technical field of pesticide residues, and specifically relates to a method for removing organophosphorus pesticides on the surface of vegetables. Background technique [0002] Pesticides, especially organophosphorus pesticides, whose toxicity causes serious damage to human health. Although the health organization and agricultural departments have banned or restricted the use of these pesticides, driven by profits, many illegal businesses still use pesticides, leading to pesticides in vegetables. High content. [0003] The information disclosed in the background section is only intended to increase the understanding of the general background of the present invention, and should not be regarded as an acknowledgement or any form of suggestion that the information constitutes the prior art already known to those of ordinary skill in the art. Summary of the invention [0004] In order to overcome the shortcomings of the prior art, the...

Claims

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Application Information

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IPC IPC(8): A23L5/20A23L5/30
CPCA23V2002/00A23V2200/30
Inventor 李燕
Owner 防城港市质量技术监督局
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