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Method for detecting chalkiness of rice

A detection method and rice technology, which are applied in the preparation of test samples, testing moving fluids/granular solids, etc., to achieve the effect of clear images, convenient operation, and ensuring correctness

Inactive Publication Date: 2017-06-20
CHINA NAT RICE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chalkiness is one of the important indicators of rice appearance quality, which can be divided into three parts: heart whiteness, back whiteness and abdomen whiteness. Grain rate × chalkiness size), but this method is relatively subjective, and requires the measurement personnel to be proficient in the chalkiness measurement method

Method used

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  • Method for detecting chalkiness of rice
  • Method for detecting chalkiness of rice
  • Method for detecting chalkiness of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1, a kind of method that utilizes the chalky standard picture of rice to judge the chalky area size of rice, carries out following steps successively:

[0034] 1), first randomly select 100 complete polished rices from the sample to be tested, then randomly select 10 chalky rice grains from the 100 grains of rice as the rice grains to be tested;

[0035] Put the transparent ruler 2 on the flat panel of the scanner to be connected with the horizontal side 11 of the scanner, and one end is perpendicular to the vertical side 12 of the scanner; then place 10 grains of rice on the flat side of the scanner against the side of the transparent ruler 2 , so that 10 grains of rice are in a straight line; such as figure 1 shown.

[0036] Microtek ScanMaker I800 puls scanner is used, scanner parameter setting: type is RGB color; resolution is 300ppi; brightness / contrast is 26 / 66; scanning mode is positive film, attribute is reverse phase;

[0037] Obtain rice images by...

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Abstract

The invention discloses a method for detecting chalkiness of rice. The refined rice is used as a sample to be tested. The method comprises randomly selecting 5-15 rice grains containing chalkiness as rice grains to be measured from samples to be tested, acquiring rice images through scanning, preprocessing the rice images, averagely dividing the image of each rice grain into 10 zones, acquiring the number of the zones which each rice grain occupies, acquiring the number of zones which chalkiness of each rice grain occupies and calculating the chalkiness size.

Description

technical field [0001] The invention belongs to the field of food quality, relates to the field of rice quality detection, in particular to a method for detecting chalkiness of rice. Background technique [0002] Chalkiness is due to the rapid accumulation of starch and protein in the endosperm of rice during the grain filling stage, and the opaque part caused by loose packing. Chalkiness is one of the important indicators of rice appearance quality, which can be divided into three parts: heart whiteness, back whiteness and abdomen whiteness. Grain rate × chalkiness size), but this method is relatively subjective, and requires the personnel to be proficient in the chalkiness measurement method. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a rice chalkiness detection method, which can quickly and accurately detect the size of the rice chalkiness. [0004] In order to solve the above-mentioned technical proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/85G01N1/28
CPCG01N21/85G01N1/28
Inventor 方长云邵雅芳胡贤巧朱智伟段彬伍闵捷
Owner CHINA NAT RICE RES INST
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