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Method for identifying production place of turmeric essential oil based on Raman spectrum technology

A technology of Raman spectroscopy and turmeric essential oil, which is applied in the directions of Raman scattering and material excitation analysis, can solve the problems of different identification methods, and there are not many references and references for identification methods, and achieve short measurement time, low cost, and improved The effect of accuracy

Active Publication Date: 2021-03-12
珠海市亚波光子检测有限责任公司
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Problems solved by technology

[0004] At present, the identification of the origin of substances by Raman spectroscopy has been developed and applied, but with the different identification objects, the specific identification methods are also different, and the identification methods of different substances do not have much reference and reference significance

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  • Method for identifying production place of turmeric essential oil based on Raman spectrum technology
  • Method for identifying production place of turmeric essential oil based on Raman spectrum technology
  • Method for identifying production place of turmeric essential oil based on Raman spectrum technology

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the examples, but not as a basis for limiting the present invention.

[0043] Embodiments of the invention

[0044] A method for identifying the place of origin of turmeric essential oil based on Raman spectroscopy, using both qualitative and quantitative identification methods, comprising the following steps:

[0045] (1) Acquisition of calibration set verification set and Raman spectral data processing

[0046] a. Select 10 samples of turmeric essential oil oily liquid from different origins as the calibration set for the initial establishment of the model, and select 2 samples from each origin as the prediction set whether the prediction model is reliable. Under the low temperature condition of 0-4° Preservation, before testing, to ensure the stability of its chemical substances and components;

[0047] b. Import the Raman spectra of all samples that have been collected into the analysis and ...

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Abstract

The invention discloses a method for identifying the production place of turmeric essential oil based on a Raman spectrum technology. The method uses qualitative and quantitative identification methods at the same time, and comprises the following specific steps: (1) collecting a calibration set verification set and processing Raman spectrum data; (2) establishing a judgment model: (2.1) establishing a PCA qualitative judgment model, and (2.2) establishing a PLS-DA quantitative judgment model; and (3) measuring the sample to be measured. The method has the characteristics of small identification error, high identification speed and no damage.

Description

technical field [0001] The invention relates to a method for identifying the origin of turmeric essential oil, in particular to a method for identifying the origin of turmeric essential oil based on Raman spectrum technology. Background technique [0002] The origin of turmeric essential oil has always been a concern. Turmeric essential oil in different production areas has different contents of main components, and there are also great differences in efficacy and price. Therefore, it is of great significance to identify and identify turmeric essential oils from different production areas. At the same time, identifying whether it is an essential oil produced in a certain area can also avoid the situation of shoddy. Since the main color and taste of turmeric essential oil do not vary much between different production regions, traditional methods such as sensory evaluation are not reliable in this case. As a traditional method of identifying essential oils, liquid chromatogr...

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 阮银兰李震阮帅
Owner 珠海市亚波光子检测有限责任公司
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