CN104888400A - Method for degrading pesticide based on LED pulsed light - Google Patents
Method for degrading pesticide based on LED pulsed light Download PDFInfo
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- CN104888400A CN104888400A CN201510317402.9A CN201510317402A CN104888400A CN 104888400 A CN104888400 A CN 104888400A CN 201510317402 A CN201510317402 A CN 201510317402A CN 104888400 A CN104888400 A CN 104888400A
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- light
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/10—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation
- A62D3/17—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by subjecting to electric or wave energy or particle or ionizing radiation to electromagnetic radiation, e.g. emitted by a laser
- A62D3/176—Ultraviolet radiations, i.e. radiation having a wavelength of about 3nm to 400nm
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/04—Pesticides, e.g. insecticides, herbicides, fungicides or nematocides
Abstract
The invention provides a method for degrading pesticide based on LED pulsed light. A spectrum controller is adopted to regulate and control the wave length of excitation light waves of an LED light-emitting body and control the flickering frequency of the LED light-emitting body; due to setting of spectra and the reasonable irradiation cycle, the residual pesticide remaining in vegetables and fruits can be greatly degraded; and through experimental confirmation, under the LED pulsed light effect, by means of photocatalytic degradation, the remaining content of the residual pesticide in the vegetables and fruits can be effectively reduced, and the effect is quite obvious. In addition, ultraviolet rays UV-A with the wave band of 350nm to 400nm are adopted to increase the nutritional ingredient of the vegetables and fruits and improve the color and the taste of the vegetables and fruits.
Description
Technical field
The present invention relates to a kind of method of optical signal degrading pesticide, particularly relate to a kind of method based on LED pulsed light degrading pesticide.
Background technology
In recent years, be widely used in the crops such as fruit and vegetable at agricultural chemicals such as China's organic phosphates, pyrethroids, the phenomenon causing pesticide residues in fruits to exceed standard was more outstanding.2003-2004, Ministry of Agriculture's oranges and tangerines and seedling quality supervision and inspection center are to more than 20 main breed ripe fresh fruit sampling inspection results such as navel orange, mandarin orange, shaddock class display of 10 provinces (district, city) in the south such as Sichuan, Chongqing, residues of pesticides recall rate 85.7%, exceeding standard rate reaches 30.3%.Wang Jiang in 2005 etc. find in the residues of pesticides condition survey of fruit market, Shaanxi: the total recall rate 34.16% of fruit organophosphorus pesticide, exceeding standard rate 27.40%; Pyrethrin pesticide recall rate is 52.67%, exceeding standard rate 6.07%.China fruit total output 10520.3 ten thousand t in 2007, account for 17% of world's fruit total output, oneself reaches No. 1 in the world.But then fruit exit Liang Jinzhan world fruit general export total amount 3.7%, do not pass a test in inspection when reason is domestic fruit exit, and wherein the more important is exactly caused by residues of pesticides exceed standard.Residues of pesticides excessive problem has become one of major obstacle of China's fruit exit.Residues of pesticides in fruit also can produce very large injury to human body.Therefore, study and grasp the pesticide residues in fruits rule of development and biodegrading process, the foreign export and raising food security increasing China's fruit is had great importance.
The method of current pesticide residues in fruits degraded mainly contains microbial degradation, ozone degradation, ultrasonic degradation etc.Utilize the residues of pesticides in microbial degradation fruit, there is nontoxic, non-secondary pollution feature.And utilize ultrasonic wave induced degradation organophosphorus pesticide respond well.But all there is technical requirement complexity, the processing time is long, cost is high problem in them.In the eighties in 20th century, Photochemistry Study starts to be applied to environmental protection, and the spectral effects in sunlight can accelerate the decomposition of the remains of pesticide in fruits and vegetables.Principle and the photochemical degradating residues of pesticides of ultraviolet degradation residues of pesticides are close.Mainly rely on the effect of ultraviolet light, the chemical effect that Ultraviolet radiation produces, make the main component double bond fracture of agricultural chemicals, destroy the combination between organic carbon and other element forming farm chemical ingredients.After the molecular structure of agricultural chemicals is destroyed, be small-molecule substance by the organic substance decomposing of difficult degradation.The research Korea S of ultraviolet degradation residues of pesticides, the existing application of France, Korean foods research institute ultraviolet scanning dried wolfberry, Biphenthrin composition drops to 0.02mg/kg(80% from 0.10mg/kg), azacyclotin drops to 0.05mg/kg (73%) from 0.19mg/kg, achieves surprising effect.China is also less to this technical research.
Summary of the invention
The main technical problem to be solved in the present invention is to provide a kind of method based on LED pulsed light degrading pesticide, adopt the wavelength of spectrum controller regulation and control LED illuminator excitation light wave, and control the frequency of LED illuminator flicker, greatly can to degrade the remains of pesticide remained in vegetables and fruits, increase the nutritional labeling of vegetables and fruits simultaneously and improve its painted and mouthfeel.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
Based on a method for LED pulsed light degrading pesticide, adopt the wavelength of spectrum controller regulation and control LED illuminator excitation light wave, and control the frequency of LED illuminator flicker.
Further, the sequence of light that described LED illuminator is regulated and controled by described spectrum controller is: ruddiness, ruddiness, blue light, ruddiness, orange light, blue light, purple light, ruddiness, orange light, gold-tinted, green glow, green light, blue light, purple light, ultraviolet, after a scan period, whole light extinguishes, then repeats above-mentioned pulse scanning.
Further, the ultraviolet that described LED illuminator sends is UV-A, and the wave band of described UV-A is 350nm-400nm.
Further, the red light wavelength that described LED illuminator sends is 600nm-700nm, and blue light wavelength is 400nm-500nm.
Preferably, the red light wavelength that described LED illuminator sends is 638.12nm, and blue light wavelength is 467.75nm.
Further, the frequency of described LED illuminator flicker is 0.01s-0.1s.
The present invention compared with prior art, has following beneficial effect:
New LED of the present invention is based on the method for LED pulsed light degrading pesticide, adopt spectrum controller regulation and control LED illuminator, produce various regular pulsed cycle spectrum optical signal, agricultural chemicals is discharged in the metabolism that can activate vegetables and fruits itself, simultaneously this spectrum setting and reasonably exposure period can greatly to degrade the remains of pesticide remained in vegetables and fruits, confirm through test, under LED pulsed light of the present invention effect, pass through photocatalysis Decomposition, fruits and vegetables residues of banned pesticides residue content effectively declines, under the effect of this invention LED pulsed light 4 hours, vegetables and fruits residues of banned pesticides residue content have dropped 45%, effect is very remarkable.In addition, employing wave band is the ultraviolet (UV)-A of 350nm-400nm, can increase the nutritional labeling of vegetables and fruits on the one hand; On the other hand, by the setting of this spectrum and rational exposure period, it is painted and mouthfeel is also well a lot of than the vegetables and fruits of general plantation.
Detailed description of the invention
Below in conjunction with embodiment, further detailed description is done to concrete grammar of the present invention, but embodiments of the present invention are not limited thereto.
embodiment 1
The present invention is based on the method for LED pulsed light degrading pesticide, adopt the wavelength of spectrum controller regulation and control LED illuminator excitation light wave, and control the frequency of LED illuminator flicker, the sequence of light that LED illuminator is regulated and controled by spectrum controller is: ruddiness (0.01 second) → ruddiness, green glow, blue light (0.01 second) → ruddiness, orange light, blue light, purple light (0.01 second) → ruddiness, orange light, gold-tinted, green glow, green light, blue light, purple light (0.01 second) → ultraviolet (0.01 second), change in this order produces the intersection of different light rays, combining form, after scanning one-period, all light extinguishes (0.01 second), after producing 0.5 second pulse spectrum cycle, repeat above-mentioned pulse scanning process again, LED illuminator sends red according to said sequence, green, blue light signals and combination optical signal irradiate plant, the red light wavelength that LED illuminator sends is 600nm-700nm, blue light wavelength is 400nm-500nm, preferably, the red light wavelength that LED illuminator sends is 638.12nm, blue light wavelength is 467.75nm, plant is made to obtain light energy, have activated the metabolism of the vegetables and fruits leaving soil, thus contribute to remains of pesticide discharge degraded in body surface, pulse spectrum catalytic decomposition degrades the agricultural chemicals of plant residue simultaneously, in addition, employing wave band is the ultraviolet (UV)-A of 350nm-400nm, the nutritional labeling of vegetables and fruits can be increased on the one hand, UV-A can promote the dynamic accumulation of the Flavonoid substances such as anthocyanidin, Flavonoid substances has effect of antioxidation and various maintenance health, on the other hand, by setting and the rational exposure period of this spectrum, it is painted and mouthfeel is also well a lot of than the vegetables and fruits of general plantation.
actual tests example of the present invention:
Test method of the present invention: carry out the test of vegetable pesticide residue amount degraded trend by GB/T5009.20 examination criteria: rape 9 basin is divided into three groups, often organize 3 basins, set up three groups of objects of observation, spray the agricultural chemicals of equivalent, then ensureing on the basis that other environmental conditions are consistent, be placed in room temperature environment respectively, outdoor natural light shines and LED pulsed light of the present invention shines lower cultivation, over time sampling and testing persticide residue wherein.
Test procedure:
1, according to general consumption, the dimethoate emulsifiable concentrate of 40% is watered 1200-1600 and doubly uses.
2, above-mentioned three groups of rapes are chosen as subjects, spray the dimethoate pesticide configured of isoconcentration, equivalent respectively thereon, then under being placed in outdoor environment respectively, under outdoor natural light shines, and under LED pulsed light photograph of the present invention, compiling respectively is No. 1 control group, No. 2 control groups and No. 3 test group.In incubation, keep other environmental variance consistent, as kept the consistent of temperature, interval, the water yield etc. of spraying water.
Result of the test: after spraying insecticide 5 days, on three groups of vegetables, the inspection of quality of vegetable Supervision Test Center is sent in sampling respectively, draws following result:
(national standard :≤1.00mg/kg)
Confirm through this test, under LED pulsed light of the present invention shines, vegetables and fruits residues of banned pesticides of can effectively degrading, effect is very remarkable.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention; For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, exhaustive without the need to also giving all embodiments here; All any amendments done within the spirit and principles in the present invention, equivalent to replace and improvement etc., within the protection domain that all should be included in the claims in the present invention.
Claims (6)
1. based on a method for LED pulsed light degrading pesticide, it is characterized in that, adopt the wavelength of spectrum controller regulation and control LED illuminator excitation light wave, and control the frequency of LED illuminator flicker.
2. the method based on LED pulsed light degrading pesticide according to claim 1, it is characterized in that, the sequence of light that described LED illuminator is regulated and controled by described spectrum controller is: ruddiness, ruddiness, blue light, ruddiness, orange light, blue light, purple light, ruddiness, orange light, gold-tinted, green glow, green light, blue light, purple light, ultraviolet, after a scan period, whole light extinguishes, then repeats above-mentioned pulse scanning.
3. the method based on LED pulsed light degrading pesticide according to claim 2, is characterized in that, the ultraviolet that described LED illuminator sends is UV-A, and the wave band of described UV-A is 350nm-400nm.
4. the method based on LED pulsed light degrading pesticide according to claim 2, is characterized in that, the red light wavelength that described LED illuminator sends is 600nm-700nm, and blue light wavelength is 400nm-500nm.
5. the method based on LED pulsed light degrading pesticide according to claim 4, is characterized in that, the red light wavelength that described LED illuminator sends is 638.12nm, and blue light wavelength is 467.75nm.
6. the method based on LED pulsed light degrading pesticide according to any one of claim 1 to 5, is characterized in that, the frequency of described LED illuminator flicker is 0.01s-0.1s.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317402.9A CN104888400B (en) | 2015-06-11 | 2015-06-11 | A method of based on LED pulsed light degrading pesticides |
| PCT/CN2015/097212 WO2016197573A1 (en) | 2015-06-11 | 2015-12-12 | Pesticide degradation method based on led pulsed light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317402.9A CN104888400B (en) | 2015-06-11 | 2015-06-11 | A method of based on LED pulsed light degrading pesticides |
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| Publication Number | Publication Date |
|---|---|
| CN104888400A true CN104888400A (en) | 2015-09-09 |
| CN104888400B CN104888400B (en) | 2018-07-13 |
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| CN201510317402.9A Active CN104888400B (en) | 2015-06-11 | 2015-06-11 | A method of based on LED pulsed light degrading pesticides |
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| CN (1) | CN104888400B (en) |
| WO (1) | WO2016197573A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105341203A (en) * | 2015-12-08 | 2016-02-24 | 吴桂冠 | Tea leaf processing method |
| CN105533402A (en) * | 2015-12-23 | 2016-05-04 | 上海应用技术学院 | Method for increasing contents of triterpenes and flavonoid substances in postharvest tomato fruits during storage and transportation processes |
| WO2016197573A1 (en) * | 2015-06-11 | 2016-12-15 | 吴健 | Pesticide degradation method based on led pulsed light |
| CN107703081A (en) * | 2017-11-10 | 2018-02-16 | 三锋集团有限公司 | A kind of lossless fast determining method of fruit and vegetable surfaces residues of pesticides |
| CN111811195A (en) * | 2019-04-12 | 2020-10-23 | 合肥华凌股份有限公司 | Drawer assembly and refrigerator |
| CN113016985A (en) * | 2021-04-19 | 2021-06-25 | 湖南省农产品加工研究所 | Automatic degradation method for residual pesticide on fruits and vegetables |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023211265A1 (en) * | 2022-04-29 | 2023-11-02 | Collaborative Research In Engineering, Science & Technology Center (Crest) | Method and apparatus for disintegrating pesticide residues and disinfecting pathogens using ultra-violet (uv) lights |
Citations (2)
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| CN1413527A (en) * | 2002-11-01 | 2003-04-30 | 陈愈 | Photophysics method for quick degradation residual farm chemical on plant |
| CN102692109A (en) * | 2012-06-14 | 2012-09-26 | 安徽康佳同创电器有限公司 | Pesticide residue-degrading and freshness-preserving refrigerator |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101905070A (en) * | 2009-06-04 | 2010-12-08 | 复旦大学 | Method for photocatalytic degradation of organic pollutants by taking light-emitting diode as light source |
| CN202232902U (en) * | 2011-09-30 | 2012-05-30 | 安徽省淮北市农药厂 | Device for reducing pesticide residues in fruits |
| CN104888400B (en) * | 2015-06-11 | 2018-07-13 | 深圳市壹鲜生生物科技有限公司 | A method of based on LED pulsed light degrading pesticides |
| CN104920924A (en) * | 2015-06-26 | 2015-09-23 | 普宁市福康科技有限公司 | Growth unit for degrading pesticide based on LED pulsed light |
| CN204763204U (en) * | 2015-06-26 | 2015-11-18 | 吴健 | Growing device based on LED pulse light degradation pesticide |
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2015
- 2015-06-11 CN CN201510317402.9A patent/CN104888400B/en active Active
- 2015-12-12 WO PCT/CN2015/097212 patent/WO2016197573A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1413527A (en) * | 2002-11-01 | 2003-04-30 | 陈愈 | Photophysics method for quick degradation residual farm chemical on plant |
| CN102692109A (en) * | 2012-06-14 | 2012-09-26 | 安徽康佳同创电器有限公司 | Pesticide residue-degrading and freshness-preserving refrigerator |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016197573A1 (en) * | 2015-06-11 | 2016-12-15 | 吴健 | Pesticide degradation method based on led pulsed light |
| CN105341203A (en) * | 2015-12-08 | 2016-02-24 | 吴桂冠 | Tea leaf processing method |
| CN105533402A (en) * | 2015-12-23 | 2016-05-04 | 上海应用技术学院 | Method for increasing contents of triterpenes and flavonoid substances in postharvest tomato fruits during storage and transportation processes |
| CN107703081A (en) * | 2017-11-10 | 2018-02-16 | 三锋集团有限公司 | A kind of lossless fast determining method of fruit and vegetable surfaces residues of pesticides |
| CN107703081B (en) * | 2017-11-10 | 2020-06-23 | 三锋集团有限公司 | Nondestructive rapid detection method for pesticide residues on surfaces of fruits and vegetables |
| CN111811195A (en) * | 2019-04-12 | 2020-10-23 | 合肥华凌股份有限公司 | Drawer assembly and refrigerator |
| CN113016985A (en) * | 2021-04-19 | 2021-06-25 | 湖南省农产品加工研究所 | Automatic degradation method for residual pesticide on fruits and vegetables |
| CN113016985B (en) * | 2021-04-19 | 2022-05-13 | 湖南省农产品加工研究所 | Automatic degradation method for residual pesticide on fruits and vegetables |
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| Publication number | Publication date |
|---|---|
| WO2016197573A1 (en) | 2016-12-15 |
| CN104888400B (en) | 2018-07-13 |
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