Near infrared spectrum identification method for red sage roots

A near-infrared spectroscopy, Salvia miltiorrhiza technology, applied in the field of traditional Chinese medicine research, can solve the problems of complicated operation, long time consumption, environmental pollution, etc., and achieve the effects of accurate results, simple operation, and pollution-free results.

Active Publication Date: 2014-04-02
TIANJIN TASLY MORDEN TCM RESOURCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For identification by physical and chemical methods, it not only takes a long time and is complicated to operate, but also uses a large amount of organic reagents, causing environmental pollution

Method used

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  • Near infrared spectrum identification method for red sage roots
  • Near infrared spectrum identification method for red sage roots
  • Near infrared spectrum identification method for red sage roots

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] In this example, through the near-infrared spectra of 289 batches of authentic Danshen and its common counterfeit products, including Dipsacus, Burdock root and Ganxi rat tail, combined with chemometrics, a new identification model of Danshen was established. After verification, The discrimination effect of the model is good.

[0039] 1. Instruments and materials

[0040] 1.1 Instrument

[0041] Antaris Fourier transform near-infrared spectrometer (Thermo Fisher, USA), SabIR diffuse reflection fiber optic probe accessories. Software: Result software (Thermo Fisher, USA) is used for spectrum acquisition, and TQ Analyst6.2 software (Thermo Fisher, USA) is used for spectral preprocessing and algorithm calculation.

[0042] 1.2 Sample source

[0043] The experimental samples included Danshen medicinal materials from different origins in Shaanxi and other common counterfeit Danshen products such as Dipsacus, Burdock root and Ganxi sage tail. The sources of samples are sho...

Embodiment 2

[0062] In this example, the same instruments and methods as in Example 1 were used to establish a model and verify the identification rate of the model. The composition of the samples is also shown in Table 1. The difference between this embodiment and embodiment 1 is only:

[0063] 1. When collecting spectra in this embodiment, the raw medicinal materials were divided into 50 parts on average, 10 grams of each part were uniformly mixed, dried at 65°C for 8 hours, pulverized, and passed through a 60-mesh standard drug sieve. Then uniformly put them into 50ml standard sampling bottles, pad them tightly, and set them aside.

[0064] 2. In this embodiment, 25 is used as the principal component number to establish the identification model.

[0065] The obtained model was validated with the validation set and found that the discriminative rate of the model was 100%.

Embodiment 3

[0067] This embodiment uses the same instrument and modeling method as in Embodiment 1, the only difference lies in the composition of the sample. The authentic Danshen in the calibration set of this embodiment includes samples No. 1-50, No. 61-110, and No. 121-170, excluding Hebei Danshen with sample numbers 181-205; counterfeit Danshen includes Nos. 211-230, 236 -No. 258, No. 264-284 samples are the same as in Example 1. The authentic Danshen in the verification set includes Nos. 51-60, 111-120, 171-180, and 181-210, including all samples of Hebei Danshen; the counterfeit Danshen includes Nos. 231-235, 259-263, and 285-289 No. sample, same as Example 1.

[0068] The identification results of the model obtained in this embodiment are shown in Table 3. After calculation, the identification rate of the model is 96%.

[0069] Table 3. Embodiment 3 identification results

[0070]

[0071]

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Abstract

The invention discloses a near infrared spectrum identification method for red sage roots, belonging to the technical field of traditional Chinese medicine researches. The method comprises the following steps of: (1) collecting the near infrared spectra of set batches of genuine red sage roots, set batches of counterfeit red sage roots and a sample to be identified; (2) establishing an identification model by using the discriminatory analysis method of Mahalanobis distance together with principal component analysis according to the infrared spectra of the genuine red sage roots and the counterfeit red sage roots; and (3) inputting the near infrared spectrum of the sample to be identified into the identification model to obtain a qualitative identification result on whether the sample to be identified is a genuine red sage root or not. The genuine red sage roots comprise 19-50 batches of red sage roots from the provinces of Shaanxi, Shandong, Sichuan and Hebei. The counterfeit red sage roots comprise 5-11 batches of teasel roots from Sichuan province, burdock roots from China and salvia przewalskii maxim from Gansu province. The method can be used for identifying the authenticity of the red sage roots and has the advantages of simple, convenient and rapid operation, accurate result and no pollution.

Description

technical field [0001] The invention relates to salvia miltiorrhiza, in particular to a method for identifying salvia miltiorrhiza based on near-infrared spectroscopy. It belongs to the technical field of traditional Chinese medicine research. Background technique [0002] Salvia miltiorrhiza Bge is a plant of the genus Salvia in the Labiatae family and is one of the commonly used traditional Chinese medicines. Its root is used for medicine, and it is named "Danshen" because of its red root bark and purple flesh, and its shape resembles ginseng. Salvia miltiorrhiza has been used as a traditional Chinese medicine for a long time in my country. It has the effects of dispelling stasis and relieving pain, promoting blood circulation and stimulating menstruation, clearing heart and eliminating troubles. With the continuous research, development and utilization of Danshen preparations, the demand for Danshen is gradually increasing. In the past two years, a large number of coun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/359G01N21/3563
Inventor 张金巍张延莹刘岩贾铭冯蕊
Owner TIANJIN TASLY MORDEN TCM RESOURCES
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