Clary sage oil stability evaluating method based on two-dimensional correlation spectrum

A technology of two-dimensional correlation spectroscopy and claretia oil, which is applied in the field of stability evaluation of claretia oil based on two-dimensional correlation spectrum, which can solve the problem of complex Raman spectrum peaks of claretia oil and the stability of claretia oil. Evaluate problems such as poor resolution and overlapping to achieve the effect of improving apparent resolution, avoiding information loss, and simplifying analysis

Inactive Publication Date: 2019-03-26
CHINA TOBACCO YUNNAN IND
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Problems solved by technology

[0004] However, due to the complexity and serious overlapping of the Raman spectrum peaks of Clarisula oil, especially the Raman spectrum peak characteristics of va

Method used

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  • Clary sage oil stability evaluating method based on two-dimensional correlation spectrum
  • Clary sage oil stability evaluating method based on two-dimensional correlation spectrum
  • Clary sage oil stability evaluating method based on two-dimensional correlation spectrum

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Embodiment 1

[0054] The method for evaluating the stability of sclare oil based on two-dimensional correlation spectroscopy of the present embodiment includes the following steps:

[0055] S0, sample preparation

[0056] Prepare adulterated samples of sclare oil of different brands: In this example, a total of 5 groups are arranged, with 60 adulterated samples in each group. Among them, soybean oil, a common doping substance in sclare oil, is doped in two stages according to the volume fraction: (1) the concentration range of 0.3% to 2.8%, and the step increment is 0.5%; (2) 2.8% to 9.8% concentration range in 1% increments. S1. Collect the original spectra of different saffron oil samples;

[0057] The samples were placed in a constant temperature water bath, and the samples were heated to 40, 50, 60, 70, and 80 degrees Celsius respectively. After the temperature was constant, a portable Raman spectrometer was used to collect the sample spectra. The changing temperature conditions need...

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Abstract

The invention discloses a clary sage oil stability evaluating method based on a two-dimensional correlation spectrum. According to the clary sage oil stability evaluating method, on the basis of the thermal disturbance two-dimensional correlation Raman spectrum, corresponding dynamic spectra of a sample in a thermal perturbation action state are recorded for correlation analysis, and thus two-dimensional wavelet transformation is introduced to conduct high-dimensional multi-scale decomposition and hierarchical reconstruction on the correlation spectra; submodels of each layer of reconstructedcorrelation spectrum are conducted through parallel factor analysis; and finally, all the submodels are fused into a unique unified decision-making model through a method of weighting so as to finallyrealize judgment of quality stability of clary sage oil. Compared with conventional Raman spectrum analysis, through the clary sage oil stability evaluating method, the resolution accuracy and sensitivity of a conventional Raman spectrum analysis model can be significantly improved, thus a rapid evaluation method for stability of tobacco essence raw materials is constructed, stability quality control over the tobacco essence raw materials can be achieved step by step, and the quality control over the tobacco essence raw materials is greatly promoted.

Description

technical field [0001] The invention relates to a method for evaluating the stability of sclare oil, in particular to a method for evaluating the stability of sclare oil based on two-dimensional correlation spectroscopy. Background technique [0002] Scented perilla oil is produced in Russia, the United States and other places. It has a history of thousands of years. It is an important natural incense raw material for cigarettes. Scented perilla oil not only has a significant effect on enhancing the aroma and flavor of tobacco, but also helps the tobacco to form a mellow and soft tobacco flavor, and realizes the effect of full aroma and comfortable and pleasant taste of cigarette products. The value of saffron oil far exceeds other types of synthetic flavors and fragrances. In order to pursue high profits, unscrupulous traders blend a large number of cheap interference agents and shielding agents in saffron oil. Once these inferior adulterated oils enter the market, they may...

Claims

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Application Information

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IPC IPC(8): G01N21/65
CPCG01N21/65
Inventor 秦云华李超陈达熊文张承明金永灿何天伦黄志轩宋子怡李珍珍
Owner CHINA TOBACCO YUNNAN IND
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