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Harmful organism movement monitoring method used during agricultural product storage and conveying

A technology for harmful organisms and agricultural products, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve problems such as heavy workload, damage to food quality, and inconvenient sampling operations, so as to ensure quality safety and low breathing intensity , the effect of small changes

Inactive Publication Date: 2007-10-17
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the temperature monitoring method is not sensitive enough. When the temperature of stored grain changes abnormally, harmful organisms may have grown and multiplied in large numbers, and may have caused irreversible damage to the stored food.
The method of sampling and detection of grain piles is a heavy workload, and the grain surface is basically sealed in large-scale granaries (required for heat preservation, moisture-proof, insect infection, etc.), and the sampling operation is inconvenient. Take fixed-point sampling, etc.
Grain quality will be severely damaged in these parts where frequent sampling and testing cannot be carried out due to operational restrictions

Method used

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  • Harmful organism movement monitoring method used during agricultural product storage and conveying
  • Harmful organism movement monitoring method used during agricultural product storage and conveying
  • Harmful organism movement monitoring method used during agricultural product storage and conveying

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1: (Monitoring of storage of high-moisture wheat under suitable temperature)

[0021] Store the high-moisture wheat with normal quality, insect-free and 16% moisture in an environment with a temperature of 28°C and a relative humidity of 80%. Small tubes with a diameter of 2mm are buried at the 0.5m and 1.0m positions of the grain pile. The external small tube port is connected to the negative pressure end of a small air pump, and the positive pressure end of the air pump is connected to the carbon dioxide sensor detection chamber. The method of the present invention is used to detect the carbon dioxide content in the wheat pile every three days; the control group uses the same wheat and storage Conditions, sampling every six days to detect the amount of mold. The test results are shown in Figure 1 and Figure 2. The results show that the method of detecting the concentration of carbon dioxide in the wheat pile is more sensitive than the method of detecting the chang...

Embodiment 2

[0022] Example 2: (Safety moisture, monitoring of the storage of insect corn)

[0023] Store corn with normal quality, insect population density of 2 to 3 insects / kg, and moisture content of 13% in an environment with a temperature of 28°C and a relative humidity of 70%. The grain surface is sealed with plastic film, and a pipe diameter is buried at 0.5m of the grain pile. 2mm small tube, the small tube port outside the grain pile is connected to the negative pressure end of a small air pump, and the positive pressure end of the air pump is connected to the carbon dioxide sensor detection chamber. The method of the present invention is used to detect the carbon dioxide content in the corn pile every six days; Using the same corn and storage conditions, samples were taken every six days to detect changes in the number of insects. The test results are shown in Figure 3. The results show that the method of monitoring changes in carbon dioxide concentration is consistent with the meth...

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Abstract

The invention discloses a method for monitoring hazardness activity of pest during agricultural product storage and transportation, which is on the bases of that breath intensity of stored and transported agricultural product is low, when mildew or insect acts, they absorbs oxygen gas and discharges carbon dioxide, gas components of storage and transportation environment is changed. Gas transportation pipes are beforehand laid at monitoring position, gas at monitoring position is transmitted by gas pump and detected in a gas sensor, when change rate of monitored gas is abnormal, situation that the storage and transportation agricultural product is suffered harm of pest can be determined. Advantages of the invention are: on site sampling is not needed, detection sensitivity is high, and harm of insect and mildew can be synchronously monitored.

Description

Technical field: [0001] The invention relates to the field of safe storage and transportation of agricultural products, such as grain and oilseeds, and in particular to a method for monitoring harmful activities of harmful organisms during the storage and transportation of agricultural products. Background technique: [0002] During the storage and transportation of agricultural products, organisms such as molds and insects may grow. The activities of these organisms pose a serious threat to the safety of agricultural products storage and transportation. Especially in the growing state of molds, they can decompose and use the ingredients in the storage of agricultural products to secrete various metabolites, thereby destroying the quality of agricultural products; many microorganisms can secrete toxic substances when they grow, such as Aspergillus flavus. Growing in grain or oilseeds can produce highly toxic and carcinogenic aflatoxins. These toxic agricultural products will seri...

Claims

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Application Information

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IPC IPC(8): G01N27/409G01N35/00G01N27/419G08B21/00
Inventor 蔡静平黄淑霞
Owner HENAN UNIVERSITY OF TECHNOLOGY
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