Method for identifying ginsengs with different growth patterns by using near infrared spectrum technology and determining content of components in ginsengs

A near-infrared spectrum and near-infrared technology, applied in the direction of removing certain component weighing, color/spectral characteristic measurement, and measuring devices, can solve the problems of non-destructive analysis, chemical reagent pollution, limitations, etc. Conducive to qualitative discriminant analysis, the effect of more information and complete information

Active Publication Date: 2014-05-07
BEIJING UNIV OF CHINESE MEDICINE
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  • Claims
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Problems solved by technology

But at present, the qualitative identification analysis of ginseng with different growth methods is still limited to the traditional characters and microscopic identification, which not only requires rich experience but also is easily affected by subjective factors. Although the current qualitative and quantitative analysis methods are effective, they must be carried out. Complicated sample pretreatment process, non-destructive analysis cannot be achieved, many internal standard compounds are selected, time-consuming and labor-intensive detection, easy to cause pollution due to large-scale use of chemical reagents

Method used

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  • Method for identifying ginsengs with different growth patterns by using near infrared spectrum technology and determining content of components in ginsengs
  • Method for identifying ginsengs with different growth patterns by using near infrared spectrum technology and determining content of components in ginsengs
  • Method for identifying ginsengs with different growth patterns by using near infrared spectrum technology and determining content of components in ginsengs

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Experimental program
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Effect test

Embodiment 1

[0103] 1. The experiment uses Antaris Fourier transform near-infrared spectrometer (Thermo Nicolet Company of the United States, light source: halogen tungsten lamp, equipped with Result 3.0 software for spectrum acquisition, TQ Analyst7.2 software for spectrum analysis), equipped with InGaAs detector, Fiber optic accessories.

[0104] 2. Spectrum acquisition range is 10000-4000cm -1 , resolution 8cm -1 , the number of scans is 32 times. With the built-in background of the instrument as a reference, the optical fiber accessory is used to collect the spectrum of the reed head of the sample. figure 1 It is the near-infrared original spectrum of garden ginseng and forest ginseng.

[0105] 3. A total of 318 samples of garden ginseng were selected from Linxiashan, involving different origins and different growth years, see Table 10 for details

[0106] Table 10 Details of sources of wild ginseng and garden ginseng samples under the forest

[0107]

[0108] 4. Spectrum prep...

Embodiment 2

[0112] 1. The experiment uses Antaris Fourier transform near-infrared spectrometer (Thermo Nicolet Company of the United States, light source: halogen tungsten lamp, equipped with Result3.0 software for spectrum acquisition, TQ Analyst7.2 software for spectrum analysis), equipped with InGaAs detector , Fiber optic accessories.

[0113] 2. Spectrum acquisition range is 10000-4000cm -1 , resolution 8cm -1 , the number of scans is 32 times. With the built-in background of the instrument as a reference, the optical fiber accessory is used to collect the spectrum of the upper part of the main root of the sample. figure 1 It is the near-infrared original spectrum of garden ginseng and forest ginseng.

[0114] 3. A total of 318 samples of ginseng from Linxiashan were selected, involving different origins and different growth years, see Table 1 for details

[0115] 4. Spectrum preprocessing: choose the processing method of MSC+spectrum (no derivation)+SGs (SG smoothing) to identi...

Embodiment 3

[0119] 1. The experiment uses Antaris Fourier transform near-infrared spectrometer (Thermo Nicolet Company of the United States, light source: tungsten halogen lamp, equipped with Result3.0 software for spectrum acquisition, TQ Ahalyst7.2 software for spectrum analysis), equipped with InGaAs detector , Fiber optic accessories.

[0120] 2. Spectrum acquisition range is 10000-4000cm -1 , resolution 8cm -1 , the number of scans is 32 times. Using the built-in background of the instrument as a reference, the optical fiber accessory is used to collect the spectrum of the lower part of the main root of the sample. figure 1 It is the near-infrared original spectrum of garden ginseng and forest ginseng.

[0121] 3. A total of 318 samples of ginseng from Linxiashan were selected, involving different origins and different growth years, see Table 1 for details

[0122] 4. Spectrum preprocessing: choose the processing method of MSC+spectrum (no derivation)+SGs (SG smoothing) to ident...

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Abstract

The invention provides a method for identifying ginsengs with different growth patterns by using a near infrared spectrum technology and determining the content of components in the ginsengs, relates to the qualitative discrimination among garden ginsengs and retirement mountain ginsengs, among the retirement mountain ginsengs and wild ginsengs, and among the garden ginsengs, the retirement mountain ginsengs and the wild ginsengs, and quantitative analysis of ginseng total saponins (the sum of nine saponins) and the water, and belongs to the technical field of traditional Chinese medicinal materials. According to the method, a near-infrared spectroscopy is used for carrying out spectrum collection on a sample; then a principal component analysis-mahalanobis distance method is used for respectively establishing a judgment model to carry out qualitative analysis; and a partial least squares regression method is used for respectively establishing a regression model to carry out the qualitative analysis. The method does not need to separate the sample and can directly judge the variety and the growing manner of the detected sample, and the content of the total saponins and the water in a lossless and rapid manner by not losing original characters and compatibility. Therefore, the method can be widely applied to the rapid, simple and convenient qualitative and quantitative analysis of traditional Chinese medicinal materials.

Description

technical field [0001] The invention relates to an analysis and detection method of ginseng samples, in particular to a qualitative and quantitative analysis and detection method for ginseng samples of different growth modes by using near-infrared spectroscopy. field. Background technique [0002] The current qualitative identification of ginseng is generally to carry out character, physicochemical or microscopic identification of ginseng samples, and modern analytical methods such as spectrophotometry, thin layer chromatography (TLC), liquid chromatography (HPLC), liquid chromatography Mass spectrometry (HPLC-MS) and some methods of biological analysis. Quantitative analysis is mainly to select a certain component or effective part of ginseng for chromatographic analysis such as HPLC, HPLC-MS, etc. But at present, the qualitative identification analysis of ginseng with different growth methods is still limited to the traditional characters and microscopic identification, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N30/02G01N5/04
Inventor 李向日卜海博王丹徐新房袁少雄
Owner BEIJING UNIV OF CHINESE MEDICINE
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