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Method for rapidly identifying type of balsam material liquid for cigarette

A technology of fragrance liquid and material liquid, which is applied in the field of rapid identification of types of tobacco flavor liquid and material liquid, and achieves the effect of simple operation and high accuracy

Active Publication Date: 2015-04-22
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is no report on the method of using near-infrared spectroscopy combined with discriminant analysis to identify the type of perfume liquid

Method used

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  • Method for rapidly identifying type of balsam material liquid for cigarette
  • Method for rapidly identifying type of balsam material liquid for cigarette
  • Method for rapidly identifying type of balsam material liquid for cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Standard sample preparation: Take 10 batches of feed liquid samples of six grades of L1, L2, L3, L4, L5, and L6 at the spice kitchen production site;

[0024] (2) Spectrum scanning: Scan the standard sample with a near-infrared spectrometer to obtain its near-infrared spectrum. The working parameters of the instrument are: spectral range 10000-4000cm -1 , resolution 8cm -1 , the number of scans is 40 times.

[0025] (3) Spectral preprocessing: Preprocessing the near-infrared spectrogram by multivariate signal correction, second derivative, and spectral smoothing;

[0026] (4) Model establishment: use the discriminant analysis method to establish the model, first at 9800.00-4100.00 cm -1 Calculate the average spectrum of the standard sample within the spectral range, subtract the average spectrum of the category from each standard spectrum, and then use the spectral information of all categories to generate a single variation spectrum, and finally estimate the valu...

Embodiment 2

[0029] (1) Standard sample preparation: Take 9 batches of fragrance liquid samples of X1, X2, X3, and X4 at the production site of the spice kitchen;

[0030] (2) Spectrum scanning: Scan the standard sample with a near-infrared spectrometer to obtain its near-infrared spectrum. The working parameters of the instrument are: spectral range 9000-3800cm -1 , resolution 48cm -1 , the number of scans is 50 times.

[0031] (3) Spectral preprocessing: Preprocessing the near-infrared spectrum by using multivariate signal correction, first-order derivative, and spectral smoothing;

[0032] (4) Model establishment: use discriminant analysis method to establish the model, first at 9800-5500 cm -1 And 5300~3900 cm -1 Calculate the average spectrum of the standard sample within the spectral range, subtract the average spectrum of the category from each standard spectrum, and then use the spectral information of all categories to generate a single variation spectrum, and finally estimate ...

Embodiment 3

[0035] (1) Samples to be tested: 5 batches of fragrance liquid samples of different brands such as L1, L2, L3, L4, L5, L6, X1, X2, X3, X4 were taken at the production site of the spice kitchen;

[0036] (2) Spectrum scanning: Scan the standard sample with a near-infrared spectrometer to obtain its near-infrared spectrum. The working parameters of the instrument are: spectral range 9500-4100cm -1 , resolution 4cm -1 , the number of scans is 65 times.

[0037] (3) Spectral preprocessing: Preprocessing the near-infrared spectrum by using multivariate signal correction, first-order derivative, and spectral smoothing;

[0038] (4) Model establishment: use the discriminant analysis method to establish the model, first at 8000-5600 cm -1 And 5300~4100 cm -1 Calculate the average spectrum of the standard sample within the spectral range, subtract the average spectrum of the category from each standard spectrum, and then use the spectral information of all categories to generate a s...

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Abstract

The invention discloses a method for rapidly identifying type of balsam material liquid for cigarette. The method comprises four steps of preparing standard samples, scanning the standard samples by using a near infrared spectrometer so as to obtain a near infrared spectrogram, carrying out the pre-treatment on the near infrared spectrogram and establishing a model; and the obtained classification model is stored in a storer. In an unknown sample analysis step, a sample to be tested is scanned so as to obtain the near infrared spectrogram of the sample; principal component analysis is carried out on a standard spectrum; the score of the spectrum of the unknown sample is determined according to the result of the principal component analysis of the standard spectrum; a mahalanobis distance is calculated by using a score gram and the classification is carried out in sequence; and the result of the identification analysis displays the name of a type which is most similar to the spectrum of the unknown sample. The method is simple and convenient to operate; the time and the labor are saved; the sample does not need pre-treatment, and the type of the unknown sample can be obtained within 2 minutes by scanning the near infrared spectrogram of the sample directly, so that the balsam material liquid of a wrong mark number is prevented from being added into a product.

Description

technical field [0001] The invention belongs to a method for quickly identifying the types of flavoring liquid for tobacco, specifically, it is applied to the rapid identification of the types of flavoring liquid for tobacco by using near-infrared spectrum technology combined with a discriminant analysis method. technical background [0002] A certain amount of fragrance liquid and material liquid are added in the process of making shredded cigarettes to improve the smoking quality and physical properties of shredded tobacco and sheet tobacco, and to endow cigarettes with certain characteristic aromas. Fragrance liquid is obtained by blending fragrance base, humectant, and alcohol according to a certain ratio, and material liquid is obtained by blending base, humectant, and water according to a certain ratio. [0003] Cigarette industry enterprises control the quality of tobacco flavoring liquids and liquids mainly in accordance with the acid value, relative density, refract...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/359G01N21/3577
Inventor 张峰陈小明陈群邓小华洪祖灿庄吴勇
Owner CHINA TOBACCO FUJIAN IND
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