Method for quickly judging rice whitening degree based on whiteness

Abstract

The invention provides a method for quickly judging the rice whitening degree based on whiteness, which comprises the following steps of: firstly, collecting brown rice on an actual production line, conveying the brown rice to a rice mill to generate a rice sample, recording the mass of the brown rice, the mass of the rice sample and the milling time, and measuring the whiteness of the brown riceand the whiteness of the rice sample by using an intelligent whiteness meter; then, calculating the grinding reduction rate of the rice sample according to the mass of the brown rice and the mass of the rice sample, and taking the whiteness of the brown rice and the whiteness of the rice sample as a data set; establishing a mathematical model of the rice whiteness and the grinding reduction rate by utilizing a linear regression method; and finally, detecting the grinding reduction rate of the whitening process of the rice sample produced by a certain rice mill by utilizing the mathematical model. The grinding reduction rate is calculated according to the whiteness, the rice grinding degree can be well reflected, a simple, convenient and rapid method is provided for a rice miller, rapid adjustment of the rice mill can be achieved, unnecessary waste is reduced, the grinding degree can be well controlled, accurate control is achieved, and excessive processing is avoided.

Description

technical field

[0001] The invention relates to the technical field of rice processing, in particular to a method for quickly judging the whitening degree of rice based on whiteness. Background technique

[0002] Rice belongs to the Poaceae Oryza genus (Oryza), which is widely distributed around the world and can be divided into two subspecies: indica rice and japonica rice. my country's rice output accounts for about one-third of the world's total output, ranking first in the world, of which about two-thirds of indica rice output, about one-third of japonica rice, rice is mainly processed into rice for daily food consumption. Rice grains are composed of two main parts: rice husk (glutin) and brown rice (caryopsis). The process of processing rice into rice is generally divided into two stages. Clean and plump brown rice is obtained through the selection process; the second stage of white rice processing uses brown rice as raw material, and the finished rice is mainly obtain...

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