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Curing process of flue-cured tobacco

A technology for curing and flue-cured tobacco, which is applied in the directions of tobacco, tobacco preparation, application, etc., can solve the problems of inability to reflect the style characteristics of China Tobacco 103, the proportion of variegated tobacco is large, and achieve bright luster, increase the aroma of tobacco leaves, and improve tobacco leaves. The effect of baking quality

Inactive Publication Date: 2012-07-04
张永辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no specific report on the curing process of China Tobacco 103. However, China Tobacco 103 adopts the traditional three-stage curing process. After curing, the proportion of upper medium tobacco is only about 65.7%. The proportion of blue is high, reaching more than 25.6%, and the proportion of variegated tobacco in the upper part of the tobacco leaf is large, reaching more than 5.36%, which cannot reflect the style and characteristics of China Tobacco 103

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A baking process for flue-cured tobacco, comprising the following steps:

[0019] In the first step, after the tobacco leaves are loaded into the furnace, ignite the fire, then raise the dry bulb temperature to 35°C at a temperature change rate of 2.5°C / h, and then raise the dry bulb temperature to 36.5°C at a temperature change rate of 1°C / h. The temperature of the bulb is 33°C, so that the tip of the lower tobacco leaf on the bottom table turns yellow by 4 cm, the tip of the middle tobacco leaf turns yellow by about 7 cm, and the tip of the upper tobacco leaf turns yellow by about 10 cm. After reaching this goal, transfer to the next baking stage ;

[0020] The second step, the yellowing stage of tobacco leaves: the dry bulb temperature of the lower tobacco leaves is raised to 39°C, and the wet bulb temperature is raised to 34.5°C; the dry bulb temperature of the middle and upper tobacco leaves is raised to 39.5°C, and the wet bulb temperature is raised to 35.5°C, Th...

Embodiment 2

[0027] In the first step, after the tobacco leaves are loaded into the furnace, ignite the fire, then raise the dry bulb temperature to 34°C at a temperature change rate of 2°C / h, and then raise the dry bulb temperature to 36°C at a temperature change rate of 1°C / h. Bulb temperature 32°C. The tip of the lower tobacco leaf on the bottom platform turns yellow by 5 cm, the tip of the middle tobacco leaf turns yellow by about 6.5 cm, and the tip of the upper tobacco leaf turns yellow by 10 cm. After reaching this goal, turn the fire to enter the next baking stage;

[0028] The second step, the yellowing stage of tobacco leaves: when the lower tobacco leaves are roasted, the dry bulb temperature is raised to 38°C, and the wet bulb temperature is raised to 34°C; the dry bulb temperature of the middle and upper tobacco leaves is raised to 39°C, and the wet bulb temperature is raised to 35°C. ℃, the heating rate is 1 ℃ / h, so that the lower tobacco leaves of the bottom table are close ...

Embodiment 3

[0035]In the first step, after the tobacco leaves are loaded into the furnace, ignite the fire, then raise the dry bulb temperature to 36°C at a temperature change rate of 3°C / h, and then raise the dry bulb temperature to 37°C at a temperature change rate of 1°C / h. Bulb temperature 34°C. Make the bottom tobacco leaf tip of the bottom platform turn yellow by 4 cm, the middle tobacco leaf tip turn yellow by about 7 cm, and the top tobacco leaf tip turn yellow by about 10 cm. After reaching this goal, turn to the next baking stage. The second step, the yellowing stage of tobacco leaves: the dry bulb temperature of the lower tobacco leaves is raised to 40°C, and the wet bulb temperature is raised to 35°C; the dry bulb temperature of the upper and middle tobacco leaves is raised to 40°C, and the wet bulb temperature is raised to 36°C, The heating rate was 1° C. / h for both. Make the lower tobacco leaves of the bottom platform close to the blue veins and yellow slices, the middle to...

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Abstract

The invention discloses a curing process of flue-cured tobacco and belongs to the technical field of the curing technology of tobacco leaves. According to the curing characteristic of the leaves of the zhongyan 103, the temperature and the humidity, the curing process of tobacco leaf of the invention divides the whole process of the curing of tobacco leaves into five steps, namely firing-up and temperature control, yellowing of tobacco leaves, transition, colour setting of tobacco leaves and stem-drying of tobacco leaves, wherein the five steps have the three stages of yellowing stage, coloursetting stage and stem-dring stage, thus the quality of the cured tobacco leaves is greatly increased. The curing process has high maneuverability and can obviously increase the tobacco leaf quality and high-class leaf ratio of flue-cured tobacco and reduce the rate of green tobacco; the ratios of high-class leaf and middle-class leaf in the cured tobacco leaves are increased by more than 10.65%,the ratio of the tobacco leaf with different colors is reduced by more than 1.67%, the ratio of tobacco leaves of which upper and middle parts are green is reduced by more than 7%; the output value is increased by more than 11.75%; and the cured tobacco leaves are bright-coloured and oily, the chemical composition tends to be coordinated, the sugar-nicotine ratio, the nitrogen-nicotine ratio and the total nicotine all meet the chemical composition quality evaluation standard of the crude tobacco; and the style characteristic of the zhongyan 103 is fully displayed, and the incomes of tobacco farmers are increased.

Description

technical field [0001] The invention relates to a curing process of flue-cured tobacco, in particular to a curing process of Zhongyan 103 as a type of flue-cured tobacco. Background technique [0002] Curing is one of the important measures of tobacco leaf production. The fresh tobacco leaves harvested in the field must be roasted to reflect its excellent quality and high commodity value. At present, the flue-cured tobacco curing process is generally a three-stage curing process, that is, the curing process is divided into three stages: yellowing, color fixing, and tendon drying. Temperature 36~38℃, yellowing complete temperature 40~42℃, wet bulb temperature 1~4℃ lower than dry bulb temperature; color fixing stage: dry bulb temperature 54~55℃, wet bulb temperature 38~40℃; Stage: Dry bulb temperature is 67-68°C, wet bulb temperature is 40-42°C, that is, according to the change requirements of tobacco leaves in each stage, the temperature and humidity indicators are stipulate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/10
Inventor 罗定棋张永辉谢强谢云波何余勇
Owner 张永辉
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