Traceable method for rice origin and application thereof

A technology of origin traceability and rice, which is applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of no near-infrared technology to trace the origin of rice, damage the health and interests of consumers, and disrupt the balance of market economy. , to achieve the effect of fast detection speed, easy operation and low detection cost

Inactive Publication Date: 2015-11-04
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, many unscrupulous traders turn their attention to the production of Heilongjiang rice. fake Among them, some old rice is polished again, and then sold directly or mixed with a small part of real Heilongjiang rice to consumers. At present, the way consumers distinguish between real and fake rice is only by appearance and smell. This method is easy to leave opportunities for unscrupulous traders to deceive consumers, so there is a lot of money in the market. fake Wuchang rice, this kind of behavior has destroyed the balance of the market economy, damaged the health and interests of consumers, and made it difficult for consumers to buy food with confidence.
[0005] At present, although there have been reports on the use of near-infrared technology to trace the origin of food such as alcohol and meat, there is no method to use near-infrared technology to trace the origin of rice.

Method used

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  • Traceable method for rice origin and application thereof
  • Traceable method for rice origin and application thereof
  • Traceable method for rice origin and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Example 1: Collection and pretreatment of samples

[0049] In order to ensure the authenticity and representativeness of the test sample varieties and sampling areas, the test samples were collected directly in the paddy field, and the sampling time was selected after the rice matured and before the farmers harvested the rice. Collect 2kg of rice, and record the sampling location, variety and other information. Sampling sites were selected from five main rice producing areas in Heilongjiang in 2012, including Qiqihar City, Shuangyashan City, Mudanjiang City, Wuchang City, and Jiamusi City, and their main producing counties, main producing townships (towns or farms), and main producing villages (tun) were selected respectively Large-scale planting plots, the main varieties selected from 5 main production areas. All test varieties are japonica rice, a total of 118 test samples, the specific situation of sample collection see Table 1 .

[0050] Table 1 Sample Inform...

Embodiment 2

[0053] Embodiment 2 near-infrared spectrum picture spectrum acquisition

[0054] In this embodiment, the DA 7200 fixed grating continuous spectrum near-infrared analyzer of Swedish Perten Instruments Co., Ltd. is used to perform spectral scanning on the collected rice samples, and the SimPlicity spectral acquisition software that comes with the instrument is selected to collect the near-infrared spectral information of the rice samples. Infrared spectrometer test conditions see Table 2 . The software used for sample modeling and analysis selects the Unscrambler 9.7 spectral analysis software equipped with the analyzer.

[0055] Table 2 Near-infrared spectrometer test conditions

[0056]

[0057] Connect the near-infrared analyzer to the power, turn on the switch, preheat for 30 minutes, pour the sample into the sample box naturally and add in excess, then scrape the mouth of the sample box with a steel ruler to make the sample evenly distributed in the cup to ensure...

Embodiment 3

[0065] Embodiment 3 is based on the establishment of Fisher discriminant method mathematical model

[0066] 1. Sample distribution, NIR spectroscopy picture collection and preprocessing

[0067] In this embodiment, a total of 118 samples were selected from 5 regions in Qiqihar City, Shuangyashan City, Mudanjiang City, Wuchang City, and Jiamusi City in Heilongjiang in 2012 for Fisher discrimination. legal property The establishment of the ground discriminant model. Select 2 / 3 of the total sample size as the modeling sample for building the model, and 1 / 3 of the sample as the forecasting sample set for the validation of the model. The number of samples used for modeling and forecasting in various places can be seen table 5 .

[0068] table 5 Mathematical model modeling and forecasting sample table based on Fisher's discriminant method

[0069]

[0070] The present embodiment near-infrared spectrum picture The acquisition of image is the same as the method in embo...

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Abstract

The present invention discloses a traceable method for rice origin and application thereof, and belongs to the technical field of security and detection of agricultural product. The method is as below: pretreating paddy rice or polished rice into rice flour, acquiring spectral image by an infrared spectroscopy, pretreating the spectral image, establishing an infrared spectral signature mathematical model of rice origin, correcting the mathematical model, and identifying rice origin by the mathematical model. The method of has the characteristics of simple feedstock pretreatment, low detection cost, easiness to operate, fast detection, good repeatability and high accuracy and is applicable to for traceability and identification of the origin of rice and rice flour.

Description

technical field [0001] The invention relates to a method for tracing the origin of rice and its application, and belongs to the technical field of agricultural product safety and detection. Background technique [0002] Due to the emergence of various food safety problems, food safety has become one of the most concerned issues. People regard food as their heaven, and food safety is the first priority. Food safety is closely related to people's health. At present, consumers have begun to pay attention to the origin traceability information of food while purchasing food. Therefore, in order to ensure food safety, increase consumer confidence, and ensure food safety from "farm" to "dining table", countries have begun to implement food traceability technology. [0003] Food traceability technology refers to the ability to trace the origin of food and other information in the process of food from raw materials, processing, finished products, and sales. Food origin traceabilit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/359G01N21/3563
Inventor 张东杰钱丽丽赵文杨张爱武史蕊
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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