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Discrimination method of flue-cured tobacco producing areas

A discrimination method and technology of origin, applied in the measurement of color/spectral characteristics, etc., can solve the problems such as the application of automatic sorting and sorting of tobacco leaves, and achieve the effect of low detection environment and sample requirements and simple detection process.

Active Publication Date: 2018-01-05
ZHENGZHOU TOBACCO RES INST OF CNTC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for identifying the origin of flue-cured tobacco, thereby solving the problem that the existing identification method cannot be applied in the automatic classification and sorting of tobacco leaves

Method used

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  • Discrimination method of flue-cured tobacco producing areas
  • Discrimination method of flue-cured tobacco producing areas

Examples

Experimental program
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Embodiment 1

[0036] In the method for determining the origin of flue-cured tobacco in this embodiment, the tobacco leaf positions of the tobacco leaves to be determined are not distinguished, including the following steps:

[0037] 1) Establish a discriminant model for the quantitative indicators of tobacco leaf color and the place of flue-cured tobacco production. The discriminant models for different regions are as follows:

[0038] Eastern Yunnan: Y = -1161.9+14.0X 1 –261.6X 3 –76.0X 4 –166.8X 5 +0.30X 6 +47.0X 7 (1);

[0039] West Fujian: Y=-1152.6+7.1X 1 –263.8X 3 –76.9X 4 –170.8X 5 +3.0X 6 +52.1X 7 (2);

[0040] Yuzhong: Y=-1256.0+15.0X 1 –284.4X 3 –83.2X 4 –182.1X 5 +0.26X 6 +49.1X 7 (3);

[0041] Southwest Sichuan: Y = -1171.2+14.0X 1 –263.3X 3 –76.9X 4 –170.7X 5 +0.69X 6 +48.3X 7 (4);

[0042] Shonan: Y = -1185.3+13.8X 1 –275.8X 3 –81.9X 4 –176.4X 5 +1.75X 6 +49.4X 7 (5);

[0043] In formula (1) ~ formula (5), X 1 Positive red and green index a * ; X 3 Is the difference between the front...

Embodiment 2

[0051] In the method for determining the origin of flue-cured tobacco in this embodiment, the tobacco leaf to be determined as the upper leaf includes the following steps:

[0052] 1) Establish a discriminant model for the quantitative indicators of tobacco leaf color and the place of flue-cured tobacco. The discriminant models for different regions are as follows:

[0053] Eastern Yunnan: Y=-6912.8-406.6X 1 +179.8X 2 –173.2X 3 –30.2X 4 –162.4X 5 (6);

[0054] West Fujian: Y = -7335.3–429.3X 1 +187.1X 2 –167.0X 3 –26.6X 4 –167.4X 5 (7);

[0055] Yuzhong: Y = -7090.4–411.6X 1 +182.4X 2 –187.5X 3 –35.0X 4 –174.3X 5 (8);

[0056] Southwest Sichuan: Y = -7052.0–411.5X 1 +182.1X 2 –168.5X 3 –29.4X 4 –164.0X 5 (9);

[0057] Shonan: Y = -6900.9-400.6X 1 +179.2X 2 –187.0X 3 –36.5X 4 –172.1X 5 (10);

[0058] In formula (6) ~ formula (10), X 1 Positive red-green index a * ; X 2 Is the positive yellow-blue index b * ; X 3 Is the difference between the front and back brightness ΔL * ; X 4 Is the...

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Abstract

The invention relates to a discrimination method of flue-cured tobacco producing areas. The discrimination method comprises the following steps: establishing a discrimination model involving a positive red-green index, a positive yellow-blue index, positive and negative brightness difference, positive and negative whiteness index difference, positive and negative total color difference, a positivewhiteness index and positive color saturation of tobacco leaves and the flue-cured tobacco producing areas; detecting quantitative color indexes of tobacco leaves to be discriminated, and substituting into the discrimination model. By the discrimination method of the flue-cured tobacco producing areas, provided by the invention, the screened quantitative color indexes such as the positive red-green index, the positive yellow-blue index and the like have very strong correlativity with the flue-cured tobacco producing areas; by a modeling method, regional appearance characteristics of the tobacco leaves from different producing areas can be reflected very well, so that the flue-cured tobacco producing areas can be effectively identified by using the established discrimination model; the quantitative color indexes can be conveniently detected by using a colorimeter, the detection process is simple, and requirements on the detection environment and samples are low; the discrimination method has a very good application prospect in the process of precisely evaluating the quality of the tobacco leaves and automatically classifying and sorting the tobacco leaves.

Description

Technical field [0001] The invention belongs to the field of tobacco leaf evaluation, and specifically relates to a method for identifying the producing area of ​​flue-cured tobacco. Background technique [0002] Tobacco is an important economic crop in my country, and the quality of tobacco leaves is closely related to genetic factors, cultivation measures, preparation techniques and the environment of the production area. Among them, the environment of the production area (altitude, temperature and humidity, climatic conditions, etc.) has an extremely obvious impact on the quality of tobacco leaves. The quality and style of tobacco leaves in different production areas in my country are significantly different. There are both classic divisions of strong flavor, fresh flavor, and intermediate flavor. There are further subdivided eight fragrance ecological regions. Different styles of tobacco leaves provide a rich raw material foundation for various types of Chinese cigarettes dev...

Claims

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Application Information

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IPC IPC(8): G01N21/25
Inventor 过伟民张仕祥王建伟张艳玲尹启生王爱国牟文君梁太波郭建华
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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