Unlock instant, AI-driven research and patent intelligence for your innovation.

Physical and chemical treatment method for degradation of specific pesticide-containing vegetable raw material before processing, and quality guaranteeing

A processing method and technology for vegetables are applied in the field of degradation of pesticide residues in vegetables, which can solve the problems of ineffective pesticides and light instability, and achieve the effects of increasing safety, reducing the total loss of vitamins, and maintaining nutritional value.

Inactive Publication Date: 2013-01-02
NINGBO HAITONG FOOD SCI & TECH CO LTD +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] The technical solution of the present invention: a physical and chemical treatment method that degrades and preserves the quality of vegetable raw materials containing specific pesticides before processing. According to the physical and chemical properties of pesticides, the present invention is mainly water-soluble, photo-instability, thermal instability and easy to use under alkaline conditions. Decomposition as the premise, through the synthesis of several effective pesticide degradation methods to achieve the purpose of maximum removal of pesticide residues, to solve the shortcomings of a single treatment can not be effective for all pesticides

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Physical and chemical treatment method for degradation of specific pesticide-containing vegetable raw material before processing, and quality guaranteeing
  • Physical and chemical treatment method for degradation of specific pesticide-containing vegetable raw material before processing, and quality guaranteeing
  • Physical and chemical treatment method for degradation of specific pesticide-containing vegetable raw material before processing, and quality guaranteeing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Degradation of Pesticide Residues in Edamame with Pods

[0035] The podded edamame with pesticide residues is freshly picked as the base, weigh about 2kg of the podded edamame, and prepare 4L Na 2 CO 3 Or NaOH solution (pH=12), soak the podded edamame completely in the lye, put the container containing the lye into the ultrasonic cleaner, turn on the ultrasonic cleaner, and the ultrasonic treatment is divided into two steps: 1) High frequency Ultrasonic 15-20min, ultrasonic intensity 40-50W / cm 2 , frequency 120-140kHz; 2) Low-frequency ultrasonic treatment for 20 minutes, ultrasonic intensity 80-90W / cm 2 , frequency 20-30kHz, proper stirring during soaking. After the lye treatment is completed, the edamame is transferred to an ultrasonic cleaner filled with clear water. The ultrasonic intensity and frequency are treated with low-frequency ultrasonic treatment. The ultrasonic cleaning is performed for 5 minutes and stirred appropriately. At this time, the p...

Embodiment 2

[0050] Example 2: Degradation of pesticide residues in komatsuna

[0051] Komatsu vegetables with pesticide residues are freshly picked for the base, weigh about 2kg of komatsu vegetables, and prepare 4L Na 2 CO 3 Or NaOH solution (pH=12), soak the komatsuna completely in the lye, put the container containing the lye into the ultrasonic cleaner, turn on the ultrasonic cleaner, and the ultrasonic treatment is divided into two steps: 1) High-frequency ultrasonic 15 -20min, ultrasonic intensity is 40-50W / cm 2 , frequency 120-140kHz; 2) Low-frequency ultrasonic treatment for 20 minutes, ultrasonic intensity 80-90W / cm 2 , frequency 20-30kHz, proper stirring during soaking. After the lye treatment is completed, transfer the komatsuna to an ultrasonic cleaner filled with clear water, use low-frequency ultrasonic treatment for the ultrasonic intensity and frequency, ultrasonically clean for 5 minutes, and stir properly. At this time, the pesticide decomposition residue remaining on...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a physical and chemical treatment method for degradation of a specific pesticide-containing vegetable raw material before processing, and quality guaranteeing, and belongs to the technical field of fruit and vegetable pesticide residue removing. According to the present invention, a fresh vegetable containing pesticide residue with the concentration of 2-10 ppm is selected; main steps comprise that: treatments by an alkaline solution, ultrasound and short-time blanching are performed, such that the main pesticide residue in the vegetable is degraded by 30-90%, the preservation rate of the main quality is more than 80%. The method of the present invention has the following advantages that: 1, a plurality of the pesticide degradation methods in the prior art are systematically screened and integrated, such that the disadvantage of the single method is prevented so as to remove the pesticide residue in the vegetable to the maximal degree, wherein the disadvantageof the single method is that: the single method provides the different degradation degrees for the different pesticides; 2, no any other chemical reagents is remained during the pesticide degradationprocess so as to increase the safety of the vegetable before processing, meanwhile, the product quality is emphasized during the degradation process, such that original nutritional ingredients and color of the vegetable are maintained to the maximal degree; 3, with the method, the pesticide residue safety required by the high quality export vegetable product is ensured.

Description

technical field [0001] The invention relates to a physical and chemical treatment method for degrading and preserving quality of vegetable raw materials containing specific pesticides before processing. The invention relates to the degradation of pesticide residues in vegetables and belongs to the technical field of removing pesticide residues in vegetables. Background technique [0002] In recent years, with the improvement of people's living standards, people pursue green food, and the quality requirements of vegetable products are getting higher and higher, and pesticide residues are increasingly attracting people's attention. The export volume of quick-frozen vegetables in our country is large, and a very important issue that must be considered in the vegetable export process is the pesticide residues in vegetables. For example, the typical pesticides are easy to exceed the standard. Malathion, acetamiprid, imidacloprid and other highly toxic varieties are used the most,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/015A23L1/212A23L1/211A23N12/06A23L5/20A23L11/30A23L19/00
Inventor 毛培成张慜袁吉泽陈纪算孙金才卢利群
Owner NINGBO HAITONG FOOD SCI & TECH CO LTD