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

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...

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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.

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