Microwave on-line disinsection method for rice or paddy

A paddy and rice technology, which is applied in the field of completely killing paddy and rice storage pests, can solve the problems that have not been reported, the flavor of rice is reduced, and the time for killing insects is long, so as to achieve good safety, short microwave action time, and prevent mildew Effect

Inactive Publication Date: 2004-09-15
GAEA GEM RICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are the following disadvantages: 1. Long-term use will cause the pests to develop resistance and reduce the efficacy, and it is basically ineffective for the eggs in paddy and rice. Once the conditions are suitable, the eggs can still ovulate, and the pests will continue to spread and cannot be completely cured.
2. It has toxic and side effects on humans and animals, directly affects the safety of food, and can also cause environmental pollution
3. Decrease the flavor of rice
4. It takes a long time to kill insects (generally 7-15 days)
[0004] And for the online desinsection method of rice or paddy, there is no report both at home and abroad at present
The reason is that fumigation takes a long time to kill insects (generally 7 to 15 days), and it is difficult to achieve online insecticide
Microwave online insecticide either cannot quickly and completely kill pests and eggs in rice or rice, or affect the nutrition and flavor of finished rice
In addition, microwave insecticide is easy to lead to a high rate of cracking of the finished rice, cracks on the surface of the rice, and changes in the color of the rice, which is also one of the reasons.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In the production line of processing rice into rice, that is, after the equipment of rice cleaning→husking→separation of paddy and rough rice→rice milling→polishing, add a continuous microwave oven such as the QW-15HM multi-tube microwave oven produced by Guangzhou Kewei Microwave Energy Co., Ltd. And a buffer bin (intermediate bin) for natural cooling behind the microwave oven. Below the cooled buffer bin, color sorting and screening equipment can be installed. That is to say, after the rice is cleaned→hulling→separation of paddy and rough→rice milling→polishing, it enters the microwave online insecticidal treatment process and cooling process. After cooling, color sorting and screening are generally required. Sometimes color sorting and sieving can be omitted if it is not necessary. Screening steps (the above content of embodiment one is all the same in embodiment two, three, four and five described below, so the following embodiments will not be repeated).

[0029] ...

Embodiment 2

[0037] The temperature of the rice leaving the microwave oven is controlled at 66°C, that is, the microwave energy per unit mass of rice is controlled at 0.023kw h / kg rice. At this time, the output power of the microwave oven is 15kw, and the processing flow rate is 649kg / h, that is, the thickness of the rice on the conveyor belt is 4cm, width 51cm, processing time 360s.

[0038] When the rice is cooled from 66°C to 40°C, the cooling rate is 25°C / h, that is, the rice stays in the buffer bin for 1 hour after leaving the microwave oven.

[0039] The adult mortality rate was 100%, cultivated for 30 days with the cultivation method, the pest density was 0 head / kg rice, and the contrast was 102 head / kg rice.

[0040] Produce waist burst rate of 10% (compared to 8%).

[0041] After storage for 6 months, there was no significant change in the flavor and nutritional components of rice.

[0042] That is, the rice sensory score: 8 in color, 9 in smell, 9 in taste, and a total score of...

Embodiment 3

[0045] The temperature of the rice leaving the microwave oven is controlled at 57°C, that is, the microwave energy per unit mass of rice is controlled at 0.014kw h / kg rice. At this time, the output power of the microwave oven is 11.25kw, and the processing flow rate is 826kg / h, which is the thickness of the rice on the conveyor belt. It is 3.3cm, the width is 22cm, and the processing time is 120s.

[0046] When the rice is cooled from 57°C to 40°C, the cooling rate is 35°C / h, that is, the rice stays in the buffer bin for 40 minutes after leaving the microwave oven.

[0047] The adult mortality rate was 100%, cultivated for 30 days with the cultivation method, the pest density was 0 head / kg rice, and the contrast was 102 head / kg rice.

[0048] The waist burst rate was 8% (compared to 8%).

[0049] After storage for 6 months, there was no significant change in the flavor and nutritional components of rice.

[0050] That is, the rice sensory score: 8 in color, 8 in smell, 8 in ...

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PUM

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Abstract

The present invention discloses a microwave on-line insecticidal method for rice or paddy. It is characterized by that after the polishing process of production line for making paddy into rice or in the course of feeding paddy into bin two procedures of microwave treatment and cooling are added, the described microwave oven can adopt market continuous microwave oven, the temp. of rice or paddy outgoing from microwave oven is 54-68 deg.C, i.e. the microwave energy for controlling unit mass of rice is 0.014-0.030 Kw.h / kg, and the described cooling procedure is naturally-cooling the rice in the buffer bin after the rice is discharged from microwave oven, and the temp. can be cooled to 40 deg.C, and its cooling speed is 20-40 deg.C / h. Said method can completely kill injurious insects in the rice or paddy and all the ova of insects.

Description

technical field [0001] The invention relates to a method for thoroughly killing rice and rice storage pests, in particular to a microwave online insecticidal method for rice or rice during processing. Background technique [0002] For a long time, the method to solve the pest problem of rice and rice in the storage process, that is, to kill the pests in rice and rice (such as grain elephant, grain robber, grain beetle, rice elephant, etc.) is mainly phosphine (or aluminum phosphide) ) fumigation method. Using this method to kill insects has a certain effect on the killing and inhibition of adults or larvae. But there are the following disadvantages: 1. Long-term use will cause the pests to develop drug resistance and reduce the efficacy, and it is basically ineffective for the eggs in paddy and rice. Once the conditions are suitable, the eggs can still ovulate, and the pests will continue to spread and cannot be completely cured. . 2. It has toxic and side effects on huma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B9/04
Inventor 赵思明孙庆杰熊善柏汪正洁何新益
Owner GAEA GEM RICE
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