Method and device for quickly and nondestructively judging processing precision grade of rice

Abstract

The invention discloses a method and a device for quickly and nondestructively judging the processing precision grade of rice. The method comprises the following steps: collecting rice bran powder samples with different processing precisions; collecting near infrared spectrum data of the bran powder sample; obtaining the organic component content of the bran powder sample; establishing an infraredspectrum correction model according to the near infrared spectrum data and the organic component content; obtaining a relation model between the rice processing precision grade and the organic component content of the bran powder; judging the current processing precision grade of the rice and adjusting the grinding degree of the rice according to the current processing precision grade. The methodhas the advantages that the rice processing precision is regulated and controlled on line, and the limitation in practical application is reduced.

Description

Technical field [0001] The invention relates to the field of rice processing, and more specifically to a method and device for quickly and non-destructively judging rice processing precision grades. Background technique [0002] Rice is one of the three major food crops in the world, and about two-thirds of the population in my country rely on rice as the staple food. The output and quality of rice have a major impact on my country's food security and residents' diet. Genetic breeding methods provide technical means to increase rice yield. On the other hand, the rice processing process plays an important role in increasing the yield and quality of rice. Rice is obtained from rice hulling, milling, polishing and other processes. The processing process of rice is mainly to remove the components of the bran layer on the surface of the rice embryo. The bran layer is rich in fat, protein, minerals and vitamins. The improvement of the sensory quality of the rice during the processing...

AI Technical Summary

Problems solved by technology

Both dyeing and chromatography need to consume reagents, there is a potential risk of harming the environment, and they are off-line analysis methods. The heat treatment and dyeing methods are susceptible to environmental factors in the judgment process. Like liquid chromatography, there are cumbersome operations, low efficiency, Large errors and other problems cannot meet the needs of fast and accurate detection

The above three methods can only detect the processing accuracy of rice offline. Due to the long detection time and the untimely feedback of the results, the judgment results have a certain delay in guiding the processing operation, which is not conducive to online control of rice processing accuracy and affects the processing quality.

Image processing method and near-infrared spectroscopy are rapid and non-destructive analysis methods. The methods in the prior art mainly detect the fat content and color parameters of the surface layer of rice during processing. Due to the variety and variety of rice in the actual processing process and the variety of rice Inhomogeneous distribution of components is not conducive to the establishment of image recognition and near-infrared spectrum correction models, thus limiting its application in practice

In summary, the prior art processing accuracy grade judgment method is not conducive to online regulation of rice processing accuracy and has limitations in practical applications

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