Method for removing residual organophosphorus pesticides from fruit juice

An organophosphorus pesticide and fruit juice technology, applied in food science, food preservation, application, etc., can solve the problems of low pesticide degradation and removal rate, low degradation efficiency, long degradation time, etc., to achieve rich pore size, large adsorption capacity, The effect of enhancing adsorption capacity

Inactive Publication Date: 2018-12-07
黄钱英
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the degradation process of pesticides in agricultural products can be degraded to a certain extent, there will be problems such as long degradation time, low degradation efficiency, and low pesticide degradation and removal rate.

Method used

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  • Method for removing residual organophosphorus pesticides from fruit juice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Preparation of low-crosslinking complex: Add 120 parts of gelatin solution with a mass fraction of 1%, 28 parts of acrylate, 30 parts of vinylpyridine, 3 parts of divinylbenzene, 0.2 parts of benzoyl peroxide, After 11.5 parts of liquid wax, stir and mix, then react at 80°C for 12h, then cool, filter, wash with hot water, filter dry the complex, extract with absolute ethanol for 9h, and finally vacuum dry at 60°C for 2h Obtain low cross-linked complexes;

[0024] Preparation of ultra-high cross-linked basic resin: Add the low-cross-linked compound prepared in a to reaction kettle B, swell with chloromethyl ether, and then add anhydrous AlCl 3 Add 23 parts into reaction kettle B in batches, react at 34°C for 10.5h, then cool, filter, and extract with absolute ethanol for 10h, then wash until neutral, then add excess ethylenediamine at 110°C After reacting for 9 hours, wash with distilled water until neutral, and finally dry in vacuum at 60°C for 2 hours to obtain an ult...

Embodiment 2

[0030] Preparation of low-crosslinking complex: Add 105 parts of gelatin solution with a mass fraction of 1%, 22 parts of acrylate, 35 parts of vinylpyridine, 2.5 parts of divinylbenzene, 0.18 parts of benzoyl peroxide, After 12 parts of liquid wax, stir and mix, then react at 80°C for 11h, then cool, filter, wash with hot water, filter dry the complex, extract with absolute ethanol for 8.5h, and finally vacuum dry at 52°C 2h to obtain low cross-linked complex;

[0031] Preparation of ultra-high cross-linked basic resin: Add the low-cross-linked compound prepared in a to reaction kettle B, swell with chloromethyl ether, and then add anhydrous AlCl 3 Add 21 parts in batches to reactor B, react at 35°C for 11.5h, then cool, filter, and extract with absolute ethanol for 8h, then wash until neutral, then add excess ethylenediamine at 115°C After reacting for 8.5 hours, wash with distilled water until neutral, and finally dry in vacuum at 53°C for 2 hours to obtain an ultra-high c...

Embodiment 3

[0037] Preparation of low-crosslinking complex: Add 100 parts of gelatin solution with a mass fraction of 1%, 25 parts of acrylate, 32 parts of vinylpyridine, 4 parts of divinylbenzene, 0.19 parts of benzoyl peroxide, Stir and mix 11 parts of liquid wax, then react at 80°C for 10.5h, then cool, filter, wash with hot water, filter to dry the complex, extract with absolute ethanol for 10h, and finally vacuum dry at 55°C 2h to obtain low cross-linked complex;

[0038] Preparation of ultra-high cross-linked basic resin: Add the low-cross-linked compound prepared in a to reaction kettle B, swell with chloromethyl ether, and then add anhydrous AlCl 3 Add 20 parts in batches to reactor B, react at 32°C for 11h, then cool, filter, and extract with absolute ethanol for 9.5h, then wash until neutral, then add excess ethylenediamine at 120°C After reacting for 8 hours, wash with distilled water until neutral, and finally dry in vacuum at 50°C for 2 hours to obtain an ultra-high cross-li...

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Abstract

The invention belongs to the technical field of fruit juice processing and particularly relates to a method for removing residual organophosphorus pesticides from fruit juice. A treatment method provided by the invention comprises the following steps: irradiating fruit juice in a rotating magnetic field, filtering the fruit juice after irradiation to obtain a fruit juice filtrate A, then adsorbingthe fruit juice filtrate A with chitosan grafted absorbent resin, performing filtering after adsorption to obtain a fruit juice filtrate B, and then sterilizing the fruit juice filtrate B. The methodfor removing residual organophosphorus pesticides can effectively remove organophosphorus and other pesticide residue and impurities from the fruit juice, has good removal effects and high safety andcan better reserve nutrient substances in the fruit juice.

Description

technical field [0001] The invention belongs to the technical field of fruit juice processing, in particular to a method for removing residual organophosphorus pesticides in fruit juice. Background technique [0002] With the public's increasing attention to food safety issues in recent years, higher requirements have been put forward for the juice processing industry. In order to ensure the yield and quality of processed fruit, pesticides are unavoidably used in the fruit cultivation process. Therefore, fruit juice drinks processed from fruits will inevitably contain pesticide residues. In order to improve the safety of fruit juice drinks, it is necessary to control Pesticides are removed. Among many pesticides, organophosphorus pesticides have become widely used in my country because of their high efficacy, wide application and low cost. Organophosphorus pesticides can form phosphorylated cholinease with acetylcholinease in organisms, inhibit the production of acetylchol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L5/30A23L5/20A23L3/16A23L2/02
CPCA23L5/30A23L2/02A23L3/16A23L5/21A23L5/273
Inventor 黄钱英
Owner 黄钱英
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