Method for quick nondestructive detection on maturity of organic flue-cured tobacco leaves

A technology for mature and non-destructive testing of tobacco leaves, applied in the measurement of color/spectral characteristics, etc., can solve problems such as instability, achieve uniform color, reduce errors, and improve quality.

Inactive Publication Date: 2013-08-14
GUIZHOU TOBACCO SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, only relying on human vision to judge the maturity of tobacco leaves has instability problems to a certain extent.

Method used

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  • Method for quick nondestructive detection on maturity of organic flue-cured tobacco leaves
  • Method for quick nondestructive detection on maturity of organic flue-cured tobacco leaves
  • Method for quick nondestructive detection on maturity of organic flue-cured tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] From 2011 to 2012, the first organic flue-cured tobacco ripening and curing experiment was conducted at the Fuquan Flue-cured Tobacco Experiment Base of Guizhou Institute of Tobacco Science. In order to accurately determine the maturity level of organic tobacco leaves and clarify the maturity standards of tobacco leaves, 20 tobacco plants were randomly selected from the tobacco fields with the same transplanting period and cultivation management measures, and the middle (from bottom to top) 1 to 3 tobacco leaves were measured with a portable colorimeter. a*b*color value. Each leaf should be tested at 6 points, namely the tip, middle and base of the leaf on both sides of the main vein, try to avoid the main branch vein of the leaf, and then take the average value. The average values ​​of L*a*b* of the first leaf are 67.57, -4.64, 57.08; the average values ​​of L*a*b* of the second leaf are: 67.22, -5.24, 56.76; the third leaf The average values ​​of L*a*b* are 67.12, -5....

Embodiment 2

[0019] From 2011 to 2012, the second organic flue-cured tobacco ripening and curing experiment was carried out at the Fuquan flue-cured tobacco test base of Guizhou Institute of Tobacco Science. In order to accurately determine the maturity level of organic tobacco leaves and clarify the maturity standards of tobacco leaves, 20 tobacco plants were randomly selected from tobacco fields with the same transplanting period and cultivation management measures, and 1 to 3 tobacco leaves L* in the middle (from bottom to top) were measured with a portable colorimeter. C*h* color value. Each leaf should be tested at 6 points, namely the tip, middle and base of the leaf on both sides of the main vein, try to avoid the main branch vein of the leaf, and then take the average value. The average values ​​of L*C*h* of the first leaf were 67.81, 57.32, 96.74; the average values ​​of L*C*h* of the second leaf were 66.25, 56.75, 94.8; the L of the third leaf The average values ​​of *C*h* are 65...

Embodiment 3

[0021] From 2011 to 2012, the third organic flue-cured tobacco ripening and curing experiment was conducted at the Fuquan Flue-cured Tobacco Test Base of Guizhou Tobacco Science Research Institute. In order to accurately determine the maturity level of organic tobacco leaves and clarify the maturity standards of tobacco leaves, 20 tobacco plants were randomly selected from the tobacco fields with the same transplanting period and cultivation management measures, and the middle (from bottom to top) 1 to 3 tobacco leaves were measured with a portable colorimeter. a*b*C*h*color value. Each leaf should be tested at 6 points, namely the tip, middle and base of the leaf on both sides of the main vein, try to avoid the main branch vein of the leaf, and then take the average value. The average values ​​of L*a*b*C*h* of the first leaf are 73.59, -0.45, 61.15, 61.19, 90.15; the average values ​​of L*a*b*C*h* of the second leaf are respectively : 72.45, -2.11, 58.73, 58.81, 97.19; the av...

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Abstract

The invention relates to a method for quick nondestructive detection on maturity of organic flue-cured tobacco leaves. The method is characterized in that 10-20 tobaccos are randomly selected from tobacco fields with consistent transplanting time and cultivation management measures, the color values (L*a*b* or/and L*C*h*) of 1-3 tobacco leaves in the middle (from bottom to top) are measured by a portable color difference meter, and the maturity of the organic flue-cured tobacco leaves is determined according to the color values. The method solves the difficult problem that specific indexes and specific determination methods are not given all the time during the harvesting process of the mature organic flue-cured tobacco leaves; the method is clear in index, has the objective judgment index, can quantify the maturity index and reduce visual errors, and is easy to operate and grasp; the method is used for judging the maturity of the organic flue-cured tobacco leaves, and can ensure that the harvested and flue-cured tobacco leaves are uniform in color, improved in quality, good in chromaticity and sufficient in aroma; and the method is suitable for tobacco planting and processing industries.

Description

technical field [0001] The invention relates to a method for detecting substances by utilizing color changes, in particular to a method for detecting the maturity degree of organic flue-cured tobacco leaves. Background technique [0002] In the early 1990s, foreign countries first proposed the concept of organic tobacco leaves. At present, the production of organic tobacco leaves is mainly distributed in the United States, Canada, Brazil, Germany and other countries. In 2008, Yunnan and Guizhou began to try to grow organic tobacco leaves; in 2009, some organic tobacco leaf planting areas in Yunnan and Guizhou obtained organic certification; in 2010, Yunnan issued the local standard "Organic Tobacco Leaf". At present, organic tobacco production at home and abroad is based on seedling cultivation and its facilities (CN 101779593 A, a method for raising organic tobacco seedlings, China; CN 202197608 U, floating seedling trays for organic tobacco leaves, China), field cultivati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25
Inventor 武圣江谢已书罗勇潘文杰赵会纳邹焱李国彬张长云韦克苏李德仑姜均
Owner GUIZHOU TOBACCO SCI RES INST
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