Crocus sativus identification method based on cloud-interconnection portable near-infrared technology and adulterated product quantitative prediction method thereof

A saffron, portable technology, applied in the field of geological exploration, can solve the problems such as reports on the identification of linear pulp that have not yet been seen, and achieve the effects of simple operation, good accuracy and reliability

Pending Publication Date: 2022-02-22
成都市食品药品检验研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are few reports on the identification of saffron and its counterfeit and adulterated products by using near-infrared spectroscopy technology. At present, there are only reports by Eman Shawky et al. who use a desktop near-infrared instrument to establish qualitative and quantitative analysis of saffron and its common foreign counterfeit products. However, there have been no reports on the identification of chrysanthemum, corn silk, lotus silk, and linear pulp, which are common saffron counterfeit products in China, using near-infrared technology.

Method used

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  • Crocus sativus identification method based on cloud-interconnection portable near-infrared technology and adulterated product quantitative prediction method thereof
  • Crocus sativus identification method based on cloud-interconnection portable near-infrared technology and adulterated product quantitative prediction method thereof
  • Crocus sativus identification method based on cloud-interconnection portable near-infrared technology and adulterated product quantitative prediction method thereof

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Effect test

Embodiment 1

[0037] The discrimination of embodiment 1 saffron of the present invention and counterfeit product thereof

[0038] 1. Establish identification model of saffron and its counterfeit products

[0039] (1) Take known saffron, safflower, corn silk, lotus silk, chrysanthemum and pulp samples respectively, and use the PV500R-I portable near-infrared instrument controlled by mobile phone to collect near-infrared spectral data in the wavelength range of 1350-1850nm. Collect 6 times;

[0040] (2) average spectrum to each sample spectral data of step (1), then use Kennard–Stone algorithm to divide each sample into a training sample and a prediction sample;

[0041] (3) Establish a saffron authenticity identification model based on partial least squares discriminant analysis (PLS-DA) with training samples;

[0042] (4) verify the saffron authenticity identification model with the prediction sample;

[0043] 2. Identify the samples to be tested

[0044] (5) Take the sample to be teste...

Embodiment 2

[0047] Embodiment 2 Discrimination of saffron of the present invention and adulterated products thereof

[0048] 1. Establish identification model of saffron and its adulterated products

[0049] (1) Take known pulp samples of saffron, saffron mixed with safflower, saffron mixed with corn silk, saffron mixed with lotus silk, saffron mixed with chrysanthemum and saffron mixed with paper pulp, and controlled by mobile phone The PV500R-I portable near-infrared instrument collects near-infrared spectral data in the wavelength range of 1350-1850nm, and collects 6 times in total;

[0050] (2) average spectrum to each sample spectral data of step (1), then use Kennard–Stone algorithm to divide each sample into a training sample and a prediction sample;

[0051] (3) First use the training samples of saffron, saffron mixed with safflower, saffron mixed with corn silk, saffron mixed with lotus root, saffron mixed with chrysanthemum, and saffron mixed with paper pulp to establish the firs...

Embodiment 3

[0057] Embodiment 3 Discrimination of saffron of the present invention and counterfeit products thereof and adulterated products

[0058] 1. Establish identification model of saffron and its counterfeit and adulterated products

[0059] (1) Take known saffron, safflower, corn silk, lotus silk, chrysanthemum, paper pulp, saffron mixed with safflower, saffron mixed with corn silk, saffron mixed with lotus silk, saffron mixed with chrysanthemum With saffron mixed with pulp samples, use the PV500R-I portable near-infrared instrument controlled by mobile phone to collect near-infrared spectral data in the wavelength range of 1350-1850nm, and collect 6 times in total;

[0060] (2) average spectrum to each sample spectral data of step (1), then use Kennard–Stone algorithm to divide each sample into a training sample and a prediction sample;

[0061] (3) Establish the authenticity identification model of saffron and counterfeit products:

[0062] Using the training samples of saffro...

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Abstract

The invention discloses a crocus sativus authenticity identification model based on a cloud-interconnection portable near-infrared technology, which is constructed by adopting the following steps: (1) taking known crocus sativus and counterfeit and / or adulterated samples thereof, collecting near-infrared spectral data, and preprocessing the spectral data; (2) dividing samples into training samples and prediction samples by using a Kennard-Stone algorithm according to the preprocessed data obtained in the step (1); (3) establishing a crocus sativus authenticity identification model based on partial least squares discriminant analysis (PLS-DA) by using the training sample; and (4) verifying the crocus sativus authenticity identification model by using the prediction sample. The crocus sativus authenticity identification model and the adulterated product adulteration amount detection model have good accuracy and reliability, can be used for on-site rapid detection of crocus sativus, and provide method reference for rapid detection of other rare traditional Chinese medicinal materials.

Description

technical field [0001] The invention relates to the field of geological exploration, in particular to a method for identifying saffron based on cloud-interconnected portable near-infrared technology and a method for quantitatively predicting adulterated products. Background technique [0002] Saffron is the dry stigma of Crocus sativus L., a plant of the Iridaceae family. It has the effects of promoting blood circulation and removing blood stasis, cooling blood and detoxifying, relieving stagnation and calming the nerves. Modern pharmacological research shows that saffron has various pharmacological effects such as treating cardiovascular and cerebrovascular diseases, mental diseases, diabetes, and anti-tumor. The yield of saffron is extremely low. It is reported that only 100,000 saffron plants can harvest 1 kg of saffron. [3] , expensive, also known as "plant gold". It is not uncommon for saffron to be adulterated in the market. The common counterfeit saffron products in...

Claims

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Application Information

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IPC IPC(8): G01N21/359G01N21/3563
CPCG01N21/359G01N21/3563G01N2201/1293
Inventor 李庆文永盛闫晓剑罗霄彭善贵许丽赵小琴严铸云
Owner 成都市食品药品检验研究院
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