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Ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil

A technology of ultrasonic atomization and essential oils, which is applied in application, food preservation, edible seed preservation, etc., can solve the problems of increasing operators’ exposure to toxic gases, mold and other microorganisms that are not inhibited, and endanger human health, etc. Drug resistance, low cost, good volatility

Inactive Publication Date: 2013-09-25
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The storage fumigants used at home and abroad today are mainly phosphides, which are cheap to prepare, easy to operate and have obvious insecticidal effects, but have no inhibitory effect on microorganisms such as mold. More importantly, their single components are easy to Creates resistance to pests and microbes while increasing operator exposure to toxic gases
[0005] To sum up, there are many disadvantages in the use of grain fumigants that are still used today, which not only pollute the environment, but also endanger human health. Solve the problem

Method used

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  • Ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil
  • Ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil
  • Ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Dehydration and refining of litsea cubeba oil, clove oil, patchouli oil and geranium oil: Litsea cubeba oil, clove oil, patchouli oil and geranium oil purchased from rural areas are directly put into w-2 batch alcohol recovery distillation tower (Wuxi LTECH Petrochemical Equipment Company) at 130 ° C, 1.15 atmospheric pressure for secondary distillation, after collection, add CaCl 2 Dehydration, so that the water content in the essential oil is less than 3%.

[0047] Preparation of cinnamon oil: buy benzaldehyde with a volume percentage above 96.1% from the market and mix glyoxylic acid at a volume ratio of 1:1.2, then add it to a reaction kettle and react at 25°C for 15 minutes, stirring at 110 times / min while adding. After standing still for 8 hours, the unreacted glyoxylic acid in the lower layer was released, and the reactant in the upper layer was cinnamon oil.

[0048] Composite essential oil preparation method: according to the volume ratio of 7:1:1:0.5:0.5, fiv...

Embodiment 2

[0052] According to attached figure 1 The design drawings and drawings of the ultrasonic fumigation and atomization device are described, and the implementation is carried out according to the connection relationship between the components in the various parts of the circuit described in the summary of the invention, and the technical parameter requirements of the components described in the implementation mode. The present invention can be practiced.

[0053] A kind of ultrasonic fumigation and atomization device, such as figure 1 As shown, the ultrasonic fumigation and atomization device includes a DC power supply 1 , connecting wires 2 , an atomization cylinder cover 3 , an atomization cylinder body 4 , an ultrasonic transducer 5 , an atomization pipeline interface 6 and a blower system 7 . The output terminal 2-1 of the connecting wire 2 is connected to the DC power supply 1, and the input terminal 2-2 of the connecting wire 2 is connected to the ultrasonic transducer 5 t...

Embodiment 3

[0067] Microscopic determination of the atomization effect: use a pipette to draw 2-3 μL of water on the cleaned glass slide, and push the water droplets away, put the ultrasonic transducer in the ultrasonic fumigation atomization device made in Example 2 into In a 2L beaker filled with compound essential oils, turn on the power supply for ultrasonic atomization, and use a glass slide coated with a water layer to collect water at a distance of 5cm, 25cm and 40cm from the atomized liquid surface (the side of the slide with fog droplets) respectively. Put the collected droplet under an inverted microscope to observe and take pictures; then use a micrometer to calibrate the droplet at the same magnification, and finally use the scnimagt software to extract the gray ratio and boundary of the image And statistical analysis, the results show that Figure 4 : 66% of the most abundant droplets are collected in the droplet samples collected at a distance of 5cm from the liquid surface....

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Abstract

The invention discloses an ultrasonic fumigating atomization method for insect-expelling and anti-mildew for storage agricultural products by utilizing composite essential oil, and belongs to the field of protecting grain agricultural products in storage from biology invasion by utilizing a fumigant. An object of the method provided by the invention is to protect the grain agricultural products from the biology invasion from a period that the products are stored in a warehouse to a period that the products are out of the warehouse. The composite essential oil provided by the invention is prepared from five kinds of essential oil comprising litsea cubeba oil, cassia oil, clove oil, wrinkled giant hyssop oil and geranium oil in a ratio of 7:1:1:0.5:0.5. The composite essential oil is fumigated and atomized by an ultrasonic atomization fumigating device to fumigate the storage agricultural products, so that the insect-expelling and anti-microbial for the storage agricultural products are achieved. The ultrasonic atomization fumigating device mainly comprises an atomization system and an air-blasting system. The composite essential oil is scattered by an ultrasonic energy converter to generate micro-scale droplets so that the fumigant is atomized. The air-blasting system promotes gasification and diffusion of the essential oil droplets, the essential oil droplets permeate mitochondrial respiratory systems of insects and microorganisms to generate biology effects, so that the insect-expelling and the anti-mildew for the warehouse are achieved.

Description

technical field [0001] The invention relates to a method for fumigants to resist biological invasion of grain and agricultural products after storage, and in particular to an ultrasonic fumigation and atomization method for expelling insects and mildew of stored agricultural products by using compound essential oils. Background technique [0002] The primary factors that endanger the storage of agricultural products such as grain are the ambient air, the acidification of agricultural products such as grain by microorganisms and pests, the insects, the reproduction of microorganisms and the secretion of toxins. Therefore, to ensure the safety of agricultural products such as grain, we must start with the biological hazards of agricultural products. The warehouse is ventilated and dry, which reduces the biological acidification of the agricultural products itself, and on the other hand prevents the parasitic fermentation, toxin production and insect bites of microorganisms. ...

Claims

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Application Information

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IPC IPC(8): A23B9/22
Inventor 罗曼柯迪
Owner JINAN UNIVERSITY
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