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A new method for preparing flue-cured tobacco with low nicotine content and low tar content

A new method, nicotine technology, applied in the preparation of tobacco, tobacco, application, etc., can solve the problems of difficult temperature control, high nicotine content and low tar content in flue-cured tobacco, and achieve short time, low temperature and low tar content Reduced effect

Inactive Publication Date: 2016-12-21
HENGYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production of flue-cured tobacco is generally carried out in a curing room (or drying room), which takes up to 24 to 40 hours, the temperature is not easy to control, and the flue-cured tobacco produced has a high nicotine content and low tar content. The nicotine content of the roasted tobacco leaves obtained by the production method is above 1.1mg / g, and the tar content is above 12mg / g, while the nicotine content of foreign cigarettes is all below 0.5mg / g, and the tar content is below 4mg / g.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0008] A new method for preparing flue-cured tobacco with low nicotine content and low tar content, which is to remove the apparent soil and poor quality tobacco leaves from the wet tobacco leaves harvested from the field, hang them on bamboo poles and put them in a closed curing furnace. The discoloration period is carried out under normal pressure. The temperature of the discoloration period is controlled at 32-35°C for 5-8 hours, and the temperature is raised to 38-40°C for 2-5 hours; During the coloring period, the temperature is 42-46°C, the time is 2-4 hours, rise to 45-50°C, the time is 2-4 hours, and then the temperature is raised to 52-55°C, and the time is 2-3 hours; The temperature is 600mmHg~500mmHg, the temperature rises to 55~65℃, and the time is 1~2 hours. Stop heating when the tobacco ribs are completely dry, and it can be released after regaining moisture.

example 2

[0010] A new method for preparing flue-cured tobacco with low nicotine content and low tar content, which is to remove the apparent soil and poor quality tobacco leaves from the wet tobacco leaves harvested from the field, hang them on bamboo poles and put them in a steel oven. The color-changing period and the color-fixing period are carried out under normal pressure. The temperature of the color-changing period is controlled at 32-35°C for 5-8 hours, and the temperature is raised to 38-40°C for 2-5 hours; the temperature of the color-fixing period is 42-46°C. The time is 2-4 hours, then rise to 50-52°C, the time is 3-5 hours, and then the temperature is raised to 54-55°C, and the time is 2-3 hours; vacuum is used in the drying period, the vacuum degree in the container is 600mmHg-500mmHg, the temperature rises Bake at 58-64°C for 2-3 hours, stop heating when the tobacco ribs are completely dry, and take them out of the oven after regaining moisture.

example 3

[0012] A new method for preparing flue-cured tobacco with low nicotine content and low tar content, which is to remove the apparent soil and poor quality tobacco leaves from the wet tobacco leaves harvested from the field, hang them on bamboo poles and put them in a curing furnace. And the color-fixing period is carried out under normal pressure, the temperature of the color-changing period is controlled at 32-35°C, and the time is 5-8 hours, and the temperature is raised to 38-40°C, and the time is 2-5 hours; ~4 hours, then rise to 50~52°C for 3~5 hours, then raise the temperature to 54~55°C for 2~3 hours; vacuum is used in the drying period, the vacuum degree in the container is 300mmHg~150mmHg, and the temperature rises to 55 ~62°C, time 1-2.5 hours, stop heating when the tobacco ribs are completely dry, and come out of the oven after regaining moisture.

[0013] The baking furnace is a round airtight container made of steel. The baking container can withstand pressure and ...

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PUM

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Abstract

The invention relates to a new method for preparing a flue-cured tobacco with low content of nicotine and tar. According to the method, wet tobacco leaves are baked at the temperature of between 32 and 65 DEG C under the condition of the vacuum degree of 600 to 50 mmHg; the nicotine and the tar can be removed from the tobacco leaves at high temperature by utilizing a principle of sublimating and evaporating the nicotine and the tar easily under vacuum; and if the temperature of baking the tobacco leaves is high, the color of the tobacco leaves is not good, so the content of the nicotine and the tar in the tobacco leaves is reduced to a certain limit under the conventional condition of baking the tobacco leaves. Compared with the prior art, the method has the advantages that a vacuum mode is adopted, the required temperature is lower than the conventional temperature, the required time is short, and the content of the nicotine and the tar in the tobacco leaves is reduced greatly, so the method has obvious economic benefit.

Description

technical field [0001] The invention relates to a new method for preparing flue-cured tobacco, in particular to a new method for preparing flue-cured tobacco with low nicotine content and low tar content. Background technique [0002] At present, the production of flue-cured tobacco is generally carried out in a curing room (or drying room), which takes up to 24 to 40 hours, the temperature is not easy to control, and the flue-cured tobacco produced has a high nicotine content and low tar content. The nicotine content of the roasted tobacco leaves obtained by the production method is above 1.1 mg / g, and the tar content is above 12 mg / g, while the nicotine content of foreign cigarettes is all below 0.5 mg / g, and the tar content is below 4 mg / g. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, and provide a new method for preparing flue-cured tobacco with low nicotine content and low tar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/10
Inventor 谭雄文
Owner HENGYANG NORMAL UNIV