CN102524609A - Food safety ecological instrument - Google Patents
Food safety ecological instrument Download PDFInfo
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- CN102524609A CN102524609A CN2012100151854A CN201210015185A CN102524609A CN 102524609 A CN102524609 A CN 102524609A CN 2012100151854 A CN2012100151854 A CN 2012100151854A CN 201210015185 A CN201210015185 A CN 201210015185A CN 102524609 A CN102524609 A CN 102524609A
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Abstract
The invention relates to a food safety ecological instrument, belonging to the technical field of food safety. A model machine of the food safety ecological instrument is developed, the ultrasonic strength and the ozone release amount are optimized in combination with ozone, ultrasonic sound and ultraviolet functions, organic phosphorus pesticide residues in foods such as vegetables, fruits and the like are effectively degraded, and the degradation rate is above 75%, wherein the degradation rate of dichlorvos reaches above 90%. According to the food safety ecological instrument provided by the invention, a physical principle is adopted, the ozone strong oxidization effect and the ultrasonic cavatition effect and the like are exerted, and the pesticide residues on the fruits and the vegetables are removed in a short time; in addition, the food safety ecological instrument is convenient to use, a water tank is of a portable structure, and a control panel can select and use an ozone generator or an ultrasonic device as needed and is convenient to use; and the food safety ecological instrument has a wide application range, can be used in places only with water or electricity and also can be used for dinnerware disinfection or indoor air sterilization and freshening.
Description
Technical field
The ecological appearance of a kind of food security, the trade name of this ecology appearance is tentative to be the ecological appearance of ZC-II food security, specifically is to have developed the ecological appearance model machine of a kind of food security to effective degraded of organophosphorus pesticide in the food such as vegetables, fruit.The invention belongs to the food security technical field.
Background technology
A large amount of and the unreasonable use of agricultural chemicals causes China's vegetables ubiquity residues of pesticides problem, and particularly organophosphorus pesticide exceeds standard seriously.This has become the key factor that influences China's vegetables quality.In recent years, because of the vegetable pesticide residue food-safety problems such as poisoning that cause that exceed standard continue to bring out, threatening consumers in general's health.Chemical residual degradation theory, degraded new method receive the many concerns of People more and more with technology in the vegetables.
At present, usually adopt liquid detergent to clean vegetable and fruit etc. in the family, liquid detergent wash water fruit vegetable can flush away part agricultural chemicals, but though the harm of agricultural chemicals has been gone some, has but increased the harm of liquid detergent, and the toxicity of residual liquid detergent is come not inferior compared with agricultural chemicals.Can reduce capillary effect because surfactant has, can penetrate into Lian Shui and all can't ooze in people's the fiber gap, extrude the dirt of ensconcing in the fiber gap.Chemical detergent then squeezes among these spaces, and shipwreck is to clean them.Equally, surfactant also can ooze people's human body.Stick in washing agent on the skin nearly 0.5% and infiltrate blood, on the skin if having wound then penetration improve more than 10 times.The chemical detergent toxin that gets in the human body can make calcium ion concentration decline in the blood, acidification of blood, and the people is tired easily.These toxin also make the functions of expelling toxin of liver reduce.The former toxin alluvial that should excrete is taken care of the pence in vivo, make people's immunity degradation, cancer is brought out in the liver cell lesion aggravation easily.
Be applied to cleaning and the sterilization of foods such as vegetables, fruit, the equipment of sterilization normally feeds ozone in water tank; When cleaning above-mentioned food through water; Bacterium and the virus killed at foodstuff surface by ozone; This device still needs clean food by hand, can only certain killing action be arranged to agricultural chemicals, hormone and the bacterium that remains in foodstuff surface, and can't effectively degrade to the remains of pesticide of the inside of food.
To the problems referred to above; The present invention combines advanced person's technology with actual demand; Utilize ozone, ultrasonic synergy; Residues of pesticides in the food such as vegetables, fruit are effectively degraded to design a kind ofly can be used for effectively that foods such as vegetables, fruit clean and the degraded novel ecological appearance of common agricultural chemicals; Solved interior ozone generator of portable water tank and ultrasonication device and how to have coordinated problems such as placement, reduced the operation that people clean in the real life, ensured that simultaneously people's health is significant.
Summary of the invention
The objective of the invention is above-mentioned deficiency, develop the ecological appearance model machine of a kind of food security effective degraded of organophosphorus pesticide in the food such as vegetables, fruit to the prior art existence.
Technical scheme of the present invention: ecological appearance structural design of ZC-II food security and instrument production and pesticides removal rate test as following.
The ecological appearance structural design of ZC-II food security according to the invention may further comprise the steps:
(1) general structure design of ecological appearance;
(2) ecological appearance external structure design.
General structure schematic top plan view of the present invention is seen accompanying drawing 1.Mainly by water tank 1, ozone generator 2, ultrasonic cleaning equipment 3, control panel 4, the netted hand basket 5 of stainless steel, handle 6, groove 7, top cover 8, window 9 constitutes with ultraviolet light source 10.
Ozone generator 2 is communicated in water tank 1 in water tank 1 bottom, and the sidewall of water tank 1 is provided with ultrasonic cleaning equipment 3, is provided with ultraviolet light source 10 at water tank 1 sidewall.
At the netted hand basket 5 of water tank 1 embedded stainless steel, foods such as vegetables and fruit can be placed in the hand basket 5, make things convenient for cleaning, sterilization, sterilization and in water tank 1, take out food.The netted hand basket 5 of said stainless steel is provided with evagination handle 6; And being provided with groove 7 at said water tank 1 both sides sidewall, handle 6 is embedded in the groove 7, can conveniently take out hand basket 5 through handle 6; And handle 6 is embedded in the groove 7, can avoid influencing the sealing of 8 pairs of water tanks 1 of top cover.
Be provided with top cover 8 at water tank 1 top, these top cover 8 pivotal connections are in the sidewall of water tank 1 one sides.On said top cover 8, also be provided with window 9, open the ozone that produces in window 9 water tanks 1 and can get into surrounding air, surrounding environment is carried out disinfection through window 9.Window 9 can be sliding window, and this sliding window is embedded in the chute (not shown) on top cover 8 tops.Said window also can and be convenient to the other forms of window of closed roof 8 for the flip-shell window.
Ecological appearance external structure design of the present invention; Mainly be on ecological appearance external control panel (4), be provided with ON/OFF, advance/go out, water intaking, draining button; The power supply of this ecology appearance of on/off button control, the locking action when advancing/going out the button control sample and putting into or take out; Also be provided with the OptionButton of different samples: the OptionButton of vegetable and fruit, poultry and egg, aquatic products, cereal, dry fruit prepared food, liquid food, table-ware disinfection, dry-cure can make things convenient for that the food to different cultivars carries out selection operation in the daily life.This invention ecological appearance of design was owing to both be provided with ozone generator in water tank; Be provided with ultrasonic cleaning equipment again; In can residual agricultural chemicals is removed in to vegetables, fruit vegetable and fruit be carried out ultrasonic waves for cleaning; Alleviated labor intensity of operating personnel greatly, its structure is also fairly simple.Can be as required, control panel can be selected, and is easy to use.
The application of the ecological appearance of described food security, the vegetable and fruit that is used to degrade, rice and meat remains of pesticide:
(1) selection of ultrasonic power: rated power is chosen in 120 w;
(2) selection of ozone generation power: the rated power of ozone generator is chosen in 400 mg/h.
Be used to degrade vegetable and fruit, rice and meat remains of pesticide, the pH condition is all unrestricted.
Be used to the to degrade remains of pesticide of vegetable and fruit, selecting the processing time is 20 min.
Be used to the to degrade remains of pesticide of meat, selecting the processing time is 20 min.
Be used to the to degrade remains of pesticide of rice, selecting the processing time is 5 min.
Instrument production according to the invention and the test of pesticides removal rate may further comprise the steps:
(1) pre-treatment of sample;
(2) back residues of pesticides quantitative determination is handled and handled to ecological appearance model machine optimal conditions;
(3) the pesticides removal rate is calculated.
Sample pre-treatments of the present invention comprises following characterization step:
Sample treatment: get the about 3.5kg of edible part sample, in the fume hood tiling, with 150 mL standard liquid (0.5 mg/mL; 16 kinds, acetone preparation wherein comprises organophosphor, organochlorine, chrysanthemum ester class) agricultural chemicals divide the spray bottle of packing into 5 times; With nitrogen as power; Evenly be injected in sample surfaces, stir, spray repeatedly.Constantly stir simultaneously guaranteeing evenly, treat that flushing liquor volatilizes after, spray next time, so repeat repeatedly, after having sprayed, leave standstill 24 h, be divided into two groups, wherein one group without any processing, with comparing; Experimental group is carried out ecological appearance and is removed processing.After general's (processing or untreated) sample is processed homogenate, take by weighing 5g in 50 mL centrifuge tubes, (rice sample adds 5mL water), 2g anhydrous sodium sulfate; 10 mL ethyl acetate, quick oscillation 3min is centrifugal; With sharp mouth suction pipe organic layer is moved in the 25mL volumetric flask, remaining lower floor adds 10 mL ethyl acetate and extracts once again, merges extract; Be settled to scale with ethyl acetate, shake up, the sample introduction bottle of packing into supplies chromatography.
Annotate: parallel 3 times of each optimization experiment.
The concrete condition that residues of pesticides quantitative determination of the present invention is adopted is following:
(1) GC conditions
Chromatographic column: DB-1701 (30m * 0.32mm * 1.0 μ m)
Carrier gas: N
2, 1.5mL/min
Injector temperature: 250 ℃
Column temperature: 100 ℃ of insulation 1min, 20 ℃/min heat to 150 ℃, insulation 2min, and 10 ℃/min heats to 280 ℃, insulation 10min
Detector temperature: 250 ℃
H
2Flow velocity: 75mL/min, air velocity: 100mL/min
Make-up gas: N
2, 30mL/min
Input mode: do not shunt, drive valve after 0.75 minute
Sample size: 1 μ L
(2) GC-MS condition:
Instrument: Shimadzu GCMS-QP 2010 Plus
Chromatographic column: DB-5 MS (30 m * 0.25 mm * 0.25 μ m)
Injector temperature: 280 ℃
Column temperature: 100 ℃ of 300 ℃ of (1min) 8 ℃/min (10min)
Interface temperature: 280 ℃
Carrier gas: He, 1 mL/min
Input mode: do not shunt
Sample size: 1 μ L
Ionization source: EI source, 250 ℃
The solvent mute time: 5min
Scan mode: select ion mode (SIM)
The pesticides removal rate is calculated: the method for pressing regulation among SN 0334-1995 (organophosphor), GB/T 5009.19-2008 (organochlorine), the SN/T 1117-2008 (chrysanthemum ester class) detects the persticide residue of each sample, calculates clearance η by following formula.
η=
----degradation rate of----each pesticide composition, unit are % to η
The content of each pesticide composition in the m0--------untreated samples.
The ecological appearance of m1--------is handled the content of each pesticide composition in the sample of back.
Appearance is as with reference to appearance owing to will be untreated, and the content value of its each pesticide composition is decided to be 100, i.e. m0=100 obtains m1 with the content of each pesticide composition in kind treatment for correcting appearance of being untreated, and calculates corresponding degradation rate according to above formula again.
Beneficial effect of the present invention:
1, physical principle is adopted in technological innovation of the present invention.Performance ozone strong oxidation and cavitation effect of ultrasonic waves etc. are removed remains of pesticide on the fruits and vegetables at short notice.
2, another characteristics of the present invention are to use conveniently.Water tank is portable, can be as required, and control panel can be selected to use ozone generator or ultrasonic unit, and is easy to use.
3, this invention applied range.As long as the place in that water, electricity are arranged can be used.It also can be used for table-ware disinfection, room air sterilization is pure and fresh.
Description of drawings
The ecological appearance general structure of Fig. 1 schematic top plan view.1, water tank, 2, ozone generator, 3, ultrasonic cleaning equipment, 4, control panel, 5, the netted hand basket of stainless steel, 6, handle, 7, groove, 8, top cover, 9, window, 10, ultraviolet light source.
The ecological appearance model machine of Fig. 2 ZC-II food security vertical view.
The ecological appearance of Fig. 3 is to the clearance of variety classes agricultural chemicals in the vegetables.
Fig. 4 ultrasonic power is to the influence of agricultural chemicals clearance in the vegetables.
Fig. 5 ozone power is to the influence of clearance.
Fig. 6 pH is to the influence of rice organophosphorus pesticide.
Fig. 7 processing time is to the clearance of organophosphorus pesticide in the pork.
The specific embodiment
Elaborate in the face of embodiments of the invention down, present embodiment provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Embodiment 1 (greengrocery)
Ecological appearance may further comprise the steps the degradation effect test of vegetable residual pesticide:
Configuration contains the standard specimen of organophosphor, organochlorine, pyrethrin pesticide; Sample treatment is handled five groups of samples to vegetables to specifications; Wherein one group without any processing; With comparing, put into ecological appearance for other four groups, respectively by 1, vegetable and fruit pattern (15 min) 2, flesh of fish pattern (20 min); 3, vegetable and fruit pattern * 2 (30 min); 4, flesh of fish pattern * 3 (60 min) handles, and wherein ultrasonic power is 50 w, ozone 200 mg/h.Ecological appearance is seen shown in Figure 3ly in the different time to the clearance of variety classes agricultural chemicals, can find out that organo-chlorine pesticide and pyrethrin pesticide degradation rate are lower; For organophosphorus pesticide, clearance is higher.
Inquired into ultrasonic and influence ozone power to the ecological appearance optimal conditions processing effect of greengrocery
In order to investigate the influence of ultrasonic power, we select 30,60,90, the ultrasonic power of 120W is studied, and other conditions are: be 5 min action time, and ozone is 300 mg/h.The influence of ultrasonic frequency is complicated process.According to the basic theories of sonochemistry, when having only power in being input to reaction solution greater than the cavitation valve, just cavitation effect possibly take place, the degraded of agricultural chemicals could realize.Generally speaking, when ultrasonic frequency and one timing of horn diameter, along with electromotive power output increases, the degradation rate of agricultural chemicals obviously improves.But too high power is unfavorable for the ultrasonic cavitation reaction sometimes on the contrary; Under high ultrasonic power effect; Cavitation bubble can look excessive in sparse (expansion) stage at sound wave, and the sound wave compression stage subsequently can not collapse moment fully, and causes system utilizes ultrasonic energy efficient to reduce.Simultaneously ultrasonic power is excessive, improves for the difficulty of laying of Vltrasonic device in the ecological appearance, adopts Vltrasonic device; The ultrasonic power that has compared under 150w and the 120w is found the degradation rate of organophosphorus pesticide; Degradation rate increasing degree when degradation rate when ultrasonic power is 150w and 120w is less, and ultrasonic noise pollution is apparent in view, therefore; When investigating the influencing of ultrasonic power, maximum power selection is at 120w.The clearance of 20 kinds of organophosphors is as shown in Figure 4.
Fig. 4 result shows: when ultrasonic power was 120W, the clearance of the organophosphor in the vegetables was the highest.
The stability of ozone (half-life) is easy to receive the influence of many factors such as pH value, ultraviolet light, ozone concentration and water quality, and this research is studied at normal temperatures.In order to investigate the influence of ozone power, adopt dynamic ablution, between with vegetables, fruit soak period, the certain density Ozone Water of not open close people, constant to guarantee ozone in water concentration.We select 200,300,400 mg/h Ozone Water power to study, and be 5 min action time, and ultrasonic power is 120 W, and the clearance of 20 kinds of organophosphors is as shown in Figure 5.
Fig. 5 result shows: the cleaning performance of the different ozone concentration aqueous solution shows that along with the increase of ozone in water concentration, the degradation rate of organophosphorus pesticide all increases to some extent.Because the maximum generation power of regulation ozone is 400 mg/h, therefore, do not consider to increase the power of ozone generator.
Embodiment 2 (rice)
Ecological appearance may further comprise the steps the degradation effect test of rice remains of pesticide:
The treatment step of rice is consistent with the treatment step of vegetables, and sample is divided into five parts, and portion does not deal with; With comparing; The ecological appearance of all the other four parts of usefulness is handled, and adds natrium carbonicum calcinatum 0.0g (pH=7.24) in the water of ecological appearance respectively, 0.2 g (pH=8.13); 0.5 g (pH=9.27), 5.0 g (pH=10.32).Wash with running water after handling 10 min, filter is done, and pulverizes, and analyzes pesticide concentration, the calculating clearance.The result sees Fig. 6.
The result shows: in selected pH scope, pH is not obvious to the clearance influence of agricultural chemicals.
Embodiment 3 (meat)
Ecological appearance may further comprise the steps the degradation effect test of meat remains of pesticide:
The treatment step of meat is consistent with the treatment step of vegetables, and meat appearance is divided into 5 groups, and wherein one group without any processing, other 4 groups handle 5,10,15 and 20 min respectively with ecological appearance after, with the running water flushing, filter is done, and processes homogenate, analyzes pesticide concentration, calculates clearance.The result sees Fig. 7.
From Fig. 7, can know, when the processing time when 5min is increased to 20 min, the clearance of most of organophosphors is to increase along with the increase of time.
Claims (6)
1. the ecological appearance of food security is characterized in that said ecological appearance by water tank (1), ozone generator (2); Ultrasonic cleaning equipment (3), control panel (4), the netted hand basket of stainless steel (5); Handle (6), groove (7), top cover (8); Window (9), and ultraviolet light source (10) constitutes;
Ozone generator (2) is communicated in water tank (1) in water tank (1) bottom, and the sidewall of water tank (1) is provided with ultrasonic cleaning equipment (3), is provided with ultraviolet light source (10) at water tank (1) sidewall;
At the netted hand basket of the embedded stainless steel of water tank (1) (5), supply to put food, make things convenient for cleaning, sterilization, sterilization and in water tank (1), take out food; The netted hand basket of said stainless steel (5) is provided with evagination handle (6); Sidewall is provided with groove (7) and on said water tank (1) both sides; Supply handle (6) to be embedded in the groove (7); Be convenient to take out hand basket (5) through handle (6), and handle (6) is embedded in the groove (7), avoids influencing the sealing of top cover (8) to water tank (1);
Be provided with top cover (8) at water tank (1) top, this top cover (8) pivotal connection is in the sidewall of water tank (1) one side; On said top cover (8), also be provided with window (9), open the ozone that produces in window (9) water tank (1) and get into surrounding air, surrounding environment is carried out disinfection through window (9); Window (9) is a sliding window, and this sliding window is embedded in the chute on top cover (8) top, or is flip-shell window and the other forms of window of being convenient to closed roof (8);
On control panel (4), be provided with ON/OFF, advance/go out, water intaking, draining button, the power supply of this ecology appearance of on/off button control, the locking action when advancing/going out the button control sample and putting into or take out; Also be provided with the OptionButton of different samples: the OptionButton of vegetable and fruit, poultry and egg, aquatic products, cereal, dry fruit prepared food, liquid food, table-ware disinfection, dry-cure can make things convenient for that the food to different cultivars carries out selection operation in the daily life.
2. letter of authorization requires the application of the ecological appearance of 1 described food security, the vegetable and fruit that it is characterized in that degrading, rice and meat remains of pesticide:
(1) selection of ultrasonic power: rated power is chosen in 120 w;
(2) selection of ozone generation power: the rated power of ozone generator is chosen in 400 mg/h.
3. letter of authorization requires the application of the ecological appearance of 1 described food security, it is characterized in that being used to degrade vegetable and fruit, rice and meat remains of pesticide, and the pH condition is all unrestricted.
4. letter of authorization requires the application of the ecological appearance of 1 described food security, the remains of pesticide of the vegetable and fruit that it is characterized in that being used to degrading, and selecting the processing time is 20 min.
5. letter of authorization requires the application of the ecological appearance of 1 described food security, the remains of pesticide of the meat that it is characterized in that being used to degrading, and selecting the processing time is 20 min.
6. letter of authorization requires the application of the ecological appearance of 1 described food security, the remains of pesticide of the rice that it is characterized in that being used to degrading, and selecting the processing time is 5 min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100151854A CN102524609A (en) | 2012-01-18 | 2012-01-18 | Food safety ecological instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100151854A CN102524609A (en) | 2012-01-18 | 2012-01-18 | Food safety ecological instrument |
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| CN102524609A true CN102524609A (en) | 2012-07-04 |
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| CN2012100151854A Pending CN102524609A (en) | 2012-01-18 | 2012-01-18 | Food safety ecological instrument |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102824934A (en) * | 2012-09-04 | 2012-12-19 | 丹阳市嘉禾米业有限公司 | Paddy rice producing production technology for removing pesticide residue |
| CN102987945A (en) * | 2012-11-23 | 2013-03-27 | 中山职业技术学院 | Multifunctional ecological instrument |
| CN105454985A (en) * | 2015-12-31 | 2016-04-06 | 瑞泽生物科技(苏州)有限公司 | Portable vehicle-mounted fruit and vegetable pesticide degradation machine |
| CN106706622A (en) * | 2016-12-27 | 2017-05-24 | 安徽鲜森绿色食品有限公司 | Method for monitoring and controlling pesticide residue in poultry cultivation process |
| WO2018120926A1 (en) * | 2016-12-31 | 2018-07-05 | 广州市生美益众科技有限公司 | Food optimization container |
| CN111387405A (en) * | 2020-04-17 | 2020-07-10 | 安徽工程大学 | Ultrasonic ozone fruit and vegetable cleaning and sterilizing machine and using method thereof |
| CN112870411A (en) * | 2021-04-22 | 2021-06-01 | 黄崇峰 | Intelligent medical instrument disinfection equipment |
| CN115736291A (en) * | 2022-11-07 | 2023-03-07 | 广州吉祥行量子科技有限公司 | Food ecology optimizing device |
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| CN111387405A (en) * | 2020-04-17 | 2020-07-10 | 安徽工程大学 | Ultrasonic ozone fruit and vegetable cleaning and sterilizing machine and using method thereof |
| CN112870411A (en) * | 2021-04-22 | 2021-06-01 | 黄崇峰 | Intelligent medical instrument disinfection equipment |
| CN115736291A (en) * | 2022-11-07 | 2023-03-07 | 广州吉祥行量子科技有限公司 | Food ecology optimizing device |
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Application publication date: 20120704 |