NIR (Near Infrared Spectrum) undamaged identification authenticity method for wild ginseng

A technology of near-infrared spectroscopy and wild ginseng, which is applied in the measurement of color/spectral characteristics, material analysis by optical means, measuring devices, etc., can solve the problems of destroying the shape of wild ginseng, uncertain identification results, etc., and achieves high identification accuracy. Effect

Inactive Publication Date: 2012-08-15
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of uncertain identification results and damage to the shape of wild ginseng in the process of identifying the authenticity of wild ginseng in the prior art, and propose a method for non-destructive identification of wild ginseng by near-infrared spectroscopy

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  • NIR (Near Infrared Spectrum) undamaged identification authenticity method for wild ginseng
  • NIR (Near Infrared Spectrum) undamaged identification authenticity method for wild ginseng

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Embodiment 1

[0019] A kind of near-infrared spectrum non-destructive identification method of the present invention is true and false. The specific implementation steps are as follows:

[0020] Step 1: Use near-infrared optical fiber accessories to collect spectral data of wild ginseng and craft ginseng with different growth environments and growth years, and store the obtained spectral data of wild ginseng and craft ginseng into the computer;

[0021] Step 2: Perform data preprocessing on the spectral data obtained in step 1, obtain the spectral diagrams of wild ginseng and craft ginseng, compare the spectral diagrams of wild ginseng and craft ginseng, select the abnormal band of spectral information according to the abnormal spectral information, and extract Spectral data of wild ginseng and craft ginseng in abnormal bands of spectral information;

[0022] Step 3: Use the principal component analysis method to extract the principal component variables from the spectral data of wild ginse...

Embodiment 2

[0032] The present invention will be described in further detail below in conjunction with specific embodiments.

[0033] A kind of near-infrared spectrum non-destructive identification method of the present invention is true and false. The specific implementation steps are as follows:

[0034] Step 1: Use near-infrared optical fiber accessories to collect spectral data of 114 wild ginseng and process ginseng with different growth environments, and store the data in the computer. When collecting data, use NICOLET 6700 Fourier Transform Infrared Spectrometer from Thermo Company in the United States , equipped with infrared optical fiber accessories and supporting OMNIC spectrum acquisition software, the instrument parameters are set as: scanning range: 10000 ~ 4000cm -1 , Resolution: 4cm -1 , number of scans: 64 times, the probe of the near-infrared optical fiber accessory is aligned with the position to be tested, and a total of 114 sampling data are obtained, including 64 sa...

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Abstract

The invention provides a NIR (Near Infrared Spectrum) undamaged identification authenticity method for wild ginseng, belonging to the field of traditional Chinese medicine detection technology. The invention aims to solve the problems that the identification result is uncertain and the wild ginseng shape is normally damaged in the identification process in the prior art. The method comprises the following steps of: collecting spectroscopic data of wild ginseng and artificial ginseng, extracting a primary component variable as an input variable by a primary component analysis method, setting an attribute code of the wild ginseng and artificial ginseng for being used as an object variable, training a network according to the input variable and the object variable, and establishing a BP (Back Propagation) artificial neural network model; collecting spectroscopic data of a sample to be identified, carrying out simulation through the established BP artificial neural network model, outputting a predicted value of the sample to be identified, and judging the sample to be identified with the reference to the attribute code of the wild ginseng and artificial ginseng, wherein when the predicted value of the sample to be identified is matched with the attribute code, the wild ginseng is identified to be real; otherwise, the ginseng is identified to be artificial. The method provided by the invention does not need a pretreatment and sampling procedure in the whole identification process, cannot damage the sample of the wild ginseng, and can realize rapid, undamaged and accurate identification.

Description

technical field [0001] The invention belongs to the technical field of traditional Chinese medicine detection, and in particular relates to a method for quickly and non-destructively identifying the authenticity of wild ginseng by using near-infrared spectrum analysis technology. Background technique [0002] Ginseng (Panax ginseng C.A.Myer) is an Araliaceae plant, and its root is one of the most valuable Chinese medicinal materials in my country. Due to the different growth years and growth environments of ginseng, there are differences in its internal effective active substances. Both traditional views and modern studies believe that the quality and curative effect of wild ginseng in disease prevention and medical care are significantly better than artificially planted garden ginseng, so its market price can vary several times, dozens of times or even hundreds of times. Driven by profit, illegal ginseng merchants used garden ginseng as wild ginseng, which caused market co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/35G01N21/3563G01N21/359
Inventor 卢启鹏樊奕辰彭忠琦丁海泉高洪智
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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