Method for rapid and nondestructive identification of deteriorated agricultural products

A fast technology for agricultural products, applied in measuring devices, material analysis through optical means, instruments, etc., can solve the problems of cumbersome operation, strong subjectivity, and low efficiency, so as to improve industrial and agricultural production efficiency, promote healthy development, and guarantee The effect of quality and safety

Inactive Publication Date: 2016-06-15
BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method mainly has many problems such as strong subjectivity, large error, cumbersome operation, low efficiency, etc., and it is difficult to meet the needs of identifying deterioration of a large number of agricultural products.

Method used

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  • Method for rapid and nondestructive identification of deteriorated agricultural products
  • Method for rapid and nondestructive identification of deteriorated agricultural products
  • Method for rapid and nondestructive identification of deteriorated agricultural products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Follow the steps below to quickly and non-destructively identify whether the wheat samples 1# to 60# to be tested have deteriorated:

[0042] (1) Take 105 non-deteriorated wheats, grind them through a cyclone mill and pass through a sieve with a diameter of 1 mm to obtain non-deteriorated wheat flour; use a Fourier transform near-infrared spectrometer at a resolution of 8 cm -1 The near-infrared absorbance spectrum data of the above-mentioned non-deteriorated wheat flour were collected under the condition of 1 =4169cm -1 、w 2 =4349cm -1 and w 3 =4475cm -1 For the absorbance value under , the minimum value of 105 non-deteriorated wheat under the characteristic wavenumber is used as the threshold, and the corresponding thresholds are e 1 =0.5300, e 2 =0.5800, e 3 =0.5300;

[0043] The characteristic wavenumber w 1 =4169cm -1 、w 2 =4349cm -1 、w 3 =4475cm -1 The lower thresholds are e 1 =0.5300, e 2 =0.5800, e 3 =0.5300, (w 1 , e 1 ) corresponding to atta...

Embodiment 2

[0053] Follow the steps below to quickly and non-destructively identify whether the wheat samples 61# to 120# to be tested have deteriorated:

[0054] (1) Take 105 non-deteriorated wheats, grind them through a cyclone mill and pass through a sieve with a diameter of 1 mm to obtain non-deteriorated wheat flour; use a Fourier transform near-infrared spectrometer at a resolution of 8 cm -1 The near-infrared absorbance spectrum data of the above-mentioned non-deteriorated wheat flour were collected under the condition of , and after the baseline correction was performed on the obtained near-infrared absorbance spectrum data, the characteristic wavenumber w of the non-deteriorated wheat in the mid-wave near-infrared region was obtained 4 =5377cm -1 、w 5 =5661cm -1 and w 6 =5986cm -1 For the absorbance value under , the minimum value of 105 non-deteriorated wheat under the characteristic wavenumber is used as the threshold, and the corresponding thresholds are e 4 =0.5350, e 5...

Embodiment 3

[0064] Follow the steps below to quickly and non-destructively identify whether the wheat samples 121# to 180# to be tested have deteriorated:

[0065] (1) Take 105 non-deteriorated wheats, grind them through a cyclone mill and pass through a sieve with a diameter of 1 mm to obtain non-deteriorated wheat flour; use a Fourier transform near-infrared spectrometer at a resolution of 8 cm -1 The near-infrared absorbance spectrum data of the above-mentioned non-deteriorated wheat flour were collected under the condition of 7 =7606cm -1 、w 8 =8346cm -1 、w 9 =9305cm -1 、w 10 =10616cm -1 For the absorbance value under , the minimum value of 105 non-deteriorated wheat under the characteristic wavenumber is used as the threshold, and the corresponding thresholds are e 7 =0.5350, e 8 =0.5730, e 9 =0.5370, e 10 =0.5350;

[0066] The characteristic wavenumber w 7 =7606cm -1 、w 8 =8346cm -1 、w 9 =9305cm -1 、w 10 =10616cm -1 The lower thresholds are e 7 =0.5350, e 8 =0.573...

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Abstract

The invention provides a method for rapid and non-destructive identification of deteriorated agricultural products. The method is based on the vibrational spectroscopy technology, determines the absorbance threshold at a specific wave number according to the non-fissionable agricultural products, scans and records the vibrational spectroscopy data of the pretreated sample, and preprocesses the data. According to the characteristics of the specific wave number and its corresponding absorbance value, that is, the spectral characteristics of the sample, combined with the threshold value at the specific wave number, it is identified whether the agricultural product is deteriorating. The present invention can realize fast, simple, efficient and environment-friendly identification of deteriorating agricultural products, and expand the application range of vibration spectrum, thereby providing rapid and non-destructive identification of deteriorating agricultural products, ensuring the quality and safety of agricultural products, and developing rapid non-destructive testing instruments, etc. Provide important technical means and technical support.

Description

technical field [0001] The invention relates to the field of agricultural product quality and safety, in particular to a method for rapid and non-destructive identification of deteriorated agricultural products. Background technique [0002] Agricultural products are an important source of food for human beings so far. With the development of productivity and the progress of society, the attention to the quality and safety of agricultural products is increasing day by day. The quality and safety of agricultural products includes two aspects. One is quality, that is, whether the content of nutrients is up to standard and whether the flavor is good; the other is safety, that is, whether there are physical, chemical, biological and other substances that are harmful or potentially harmful to human health. possible factors. Good-quality agricultural products can provide human beings with high-quality sources of energy and nutrition, and are of great significance to ensuring hum...

Claims

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Application Information

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IPC IPC(8): G01N21/31G01N21/3563G01N21/359
CPCG01N21/31G01N21/3563G01N21/359G01N2021/3595
Inventor 王冬潘立刚马智宏王纪华靳欣欣
Owner BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES
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