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Curing method of flue-cured tobacco leaf raw materials

A modulation method and tobacco leaf technology, applied in tobacco, tobacco preparation, application, etc., can solve the problems of high equipment requirements, high modulation cost, complicated process, etc., and achieve the effect of reducing probability and harm

Active Publication Date: 2012-12-26
YUNNAN REASCEND TOBACCO TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is complicated, the equipment requirements are high, and the modulation cost is too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Select Honghua Dajinyuan tobacco leaves from a real estate in Yunnan. The control sample is consistent with the selected tobacco leaves of the test sample by the method of the present invention.

[0019] Control sample 1: The yellowing period is from the beginning of baking to 96 hours, of which the heating rate is 0.1°C / h for the first 45 hours, rising to 36°C; after 36 hours, the heating rate is changed to 0.15°C / h, rising to 42°C, 93°C After 1 hour, the temperature rises to 44°C at a rate of 0.5°C / h, and the relative humidity range is 82%; enters the color-fixing period, which lasts for 48 hours, and the temperature rises to 56°C at a rate of 0.3°C / h. The range is 50%, enter the dry gluten period and continue to rise to 68°C at 0.5°C / h until the end of baking, and the relative humidity range is 24%.

[0020] Test sample 1 of the inventive method: close the dehumidification window before starting to bake, and feed nitrogen (N 2 ) and oxygen (O 2 ), and controlled ni...

Embodiment 2

[0029] Select Honghua Dajinyuan tobacco leaves from a real estate in Yunnan. The control sample is consistent with the selected tobacco leaves of the test sample by the method of the present invention.

[0030] Control sample 2: the modulation method is the same as that of control sample 1.

[0031] Test sample 2 of the inventive method: close the dehumidification window before starting to bake, feed nitrogen (N 2 ) and carbon dioxide (CO 2 ), and control N 2 and CO 2 The volume ratio is 1:3. After the medium gas fills the entire baking room, it is baked according to the same baking process as the test sample 1 of the present invention. After the dehumidification starts, the active gas medium atmosphere is reintroduced until the baking is completed.

[0032] Table 4 comparison of control sample and the method test sample TSNA measurement result of the present invention

[0033] Test name NNN / μg / g NNK / μg / g NAB / μg / g NAT / μg / g TSNA / μg / g Control 2 1.546 ...

Embodiment 3

[0040] Select Yunyan 85 tobacco leaves from a real estate in Yunnan. The control sample is consistent with the selected tobacco leaves of the test sample by the method of the present invention.

[0041] Control sample 3: The yellowing period is from the start of baking to 60 hours, in which the heating rate is 0.2°C / h for the first 12 hours, rising to 27.5°C; after 12 hours, the heating rate is changed to 0.22°C / h, rising to 38°C, and after 60 hours Rise to 45°C at a heating rate of 0.33°C / h, and enter the color-fixing period at a relative humidity range of 70%. The color-fixing period is 24 hours, with a heating rate of 0.63°C / h, rising to 57°C, and a relative humidity range of 60%. Enter the dry gluten period and continue to rise to 69°C at 0.5°C / h, and the relative humidity range is 15% until the end of baking.

[0042] Test sample 3 of the inventive method: close the dehumidification window before starting to bake, feed nitrogen (N 2 ), carbon dioxide (CO 2 ), oxygen (O ...

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Abstract

The invention relates to a curing method of flue-cured tobacco leaf raw materials. When flue-cured tobacco raw materials are roasted and prepared in a curing barn, the environmental medium atmosphere in the curing barn is regulated, wherein the content of introduced air is 0-100%, the content of O2 is 0-100%, the content of N2 is 0-100%, the content of water vapor is 0-100%, and the content of CO2 is 0-100%. The process condition for processing the tobacco leaf raw materials is as follows: in the period of turning yellow of the tobacco leaves, the temperature of the tobacco leaves gradually rises to 42-45 DEG C from normal temperature, and the relative humidity range is between 95% to 70%; in the period of fixing the color of the tobacco leaves, the temperature of the tobacco leaves gradually rises to 55 DEG C-57 DEG C from the temperature at which the tobacco leaves turn yellow, the temperature rate is 0.3-2 DEG / h, and the relative humidity range is from 80% to 30%; and in the period of dying the veins of the tobacco leaves, the temperature of the tobacco leaves is controlled between 60 DEG C and 80 DEG C, the temperature rate is 0.5-5 DEG C / (1-2) hours, and the relative humidity range is between 30%-15%. The curing method is in favor of giving play to the special aroma quality of the tobacco leaves, the objectionable constituents in the tobacco leaves is reduced by using the curing method, and the processing cost is low.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf preparation. Background technique [0002] The cigarette industry has many effective coke reduction measures, including lengthening the filter tip, increasing the flammability of cigarettes, punching holes and so on. However, since the defocusing itself has no selectivity, the quality of inhalation, especially the quality of aroma, is also reduced while defocusing. The process of tobacco preparation is a process of revealing and exerting the unique aroma quality of tobacco leaves, and it is also an important process of reducing harm and coke from the source. The formation of harmful components in tobacco leaves is undoubtedly of great significance. [0003] At present, most of the research on harm reduction technology of tobacco modulation is concentrated on N-TSNAs, and a lot of progress has been made. According to relevant literature reports, N-TSNAs are a series of carcinogens formed f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/12
Inventor 王保兴夏非李军刘建林
Owner YUNNAN REASCEND TOBACCO TECH GRP
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