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Roasting method of high-temperature droughty unripe tobacco leaves

A curing method and tobacco leaf technology, which are applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of difficulty in ensuring the curing quality of under-ripe tobacco leaves under high temperature, drought, and large loss of tobacco leaves, so as to reduce the curing loss, improve the quality, and improve the The effect of baking quality

Active Publication Date: 2014-04-02
LUZHOU CO LTD SICHUAN TOBACCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult to guarantee the roasting quality of under-ripe tobacco leaves under high temperature and drought by using traditional tobacco leaf curing process, and the loss of tobacco leaves is relatively large

Method used

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  • Roasting method of high-temperature droughty unripe tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Early stage of yellowing: Tobacco leaves heat up rapidly after the furnace is ignited, and the dry bulb temperature is raised to 35°C at a heating rate of 2-3°C / h, and the wet bulb temperature is controlled at 35°C, and the temperature is stabilized for 10 hours. At this stage, moisture and yellowing are the main factors. Tobacco leaves are heated and sweat, and the tip of the leaf becomes soft. The tobacco leaves in the high-temperature layer germinate and turn yellow. 1 / 3 of the tip turns yellow, and the tobacco leaves turn yellow by 50-60%.

[0027] Mid-yellowing stage: raise the dry bulb temperature to 37°C and the wet bulb temperature to 36°C at a heating rate of 1°C / h, and stabilize the temperature for 2 hours; then raise the dry bulb temperature to 39°C and the wet bulb temperature to 37°C, The temperature was stabilized for 2 hours; then the dry bulb temperature was kept at 39°C and the wet bulb temperature was 36°C, and the temperature was stabilized for 7h. Th...

Embodiment 2

[0035] Early stage of yellowing: Tobacco leaves heat up rapidly after the furnace is ignited, and the dry bulb temperature is raised to 36°C at a heating rate of 2-3°C / h, and the wet bulb temperature is 35°C, and the temperature is stabilized for 10 hours. Mainly moisturizing and yellowing, the tobacco leaves are heated and sweat, the tip of the leaf becomes soft, the tobacco leaves in the high temperature layer germinate and turn yellow, 1 / 3 of the tip of the leaf turns yellow, and the tobacco leaves turn yellow by 50-60%.

[0036] Mid-yellowing stage: raise the dry bulb temperature to 38°C and the wet bulb temperature to 37°C at a heating rate of 1°C / h, and stabilize the temperature for 2 hours; then raise the dry bulb temperature to 39°C and the wet bulb temperature to 38°C, Stabilize the temperature for 2 hours; then keep the dry bulb temperature at 40°C and the wet bulb temperature at 37°C for 8 hours. The tobacco leaves in the high-temperature layer further turn yellow d...

Embodiment 3

[0044] Early stage of yellowing: Tobacco leaves heat up rapidly after being loaded into the furnace and ignited, and the dry bulb temperature is raised to 36°C at a heating rate of 2-3°C / h, and the wet bulb temperature is 36°C, and the temperature is stabilized for 8 hours. Mainly moisturizing and yellowing, the tobacco leaves are heated and sweat, the tip of the leaf becomes soft, the tobacco leaves in the high temperature layer germinate and turn yellow, 1 / 3 of the tip of the leaf turns yellow, and the tobacco leaves turn yellow by 50-60%.

[0045]Middle stage of yellowing: raise the dry bulb temperature to 38°C and wet bulb temperature to 37°C at a heating rate of 1°C / h, stop the fan for 30 minutes after stabilizing the temperature for 2 hours, and then turn on for 5 minutes; then raise the dry bulb temperature to 39°C , the wet bulb temperature is 38°C, after 2 hours of steady temperature, stop the fan, then keep the dry bulb temperature at 39°C, lower the wet bulb temperat...

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Abstract

The invention discloses a roasting method of high-temperature droughty unripe tobacco leaves. The roasting method comprises the following six steps: a yellowing early stage, a yellowing middle stage, a yellowing later stage, a color-fixing front stage, a color-fixing later stage and a stem drying stage. With the roasting method disclosed by the invention, roasting loss of high-temperature droughty unripe tobacco leaves is reduced by regulating roasting process parameters, and roasting quality of the tobacco leaves is improved. Moreover, a proportion of middle and upper grades of tobacco leaves is obviously increased, the proportion of variegated tobacco leaves is reduced, and the proportion of tobacco leaves which are greenish on middle upper parts is obviously lowered, and good effect is achieved.

Description

technical field [0001] The invention relates to the field of tobacco leaf preparation, in particular to a method for roasting under-ripe tobacco leaves under high temperature and drought conditions. Background technique [0002] Affected by high temperature and drought, soil moisture is insufficient, metabolism is hindered, and tobacco plants lose a lot of water. Affected by high temperature and drought, the picking of tobacco leaves must be completed in the shortest possible time to avoid serious leaf scorch or burn problems. In the process of tobacco leaf harvesting, we often face the practical problem of underripe tobacco leaves, and it is very easy to roast green smoke, slightly green smoke, severe variegated and bad tobacco leaves. [0003] Dry underripe tobacco leaves belong to the tobacco leaves under special conditions. The tobacco leaves complete growth and development, reach the highest biological yield, and the accumulation of dry matter reaches the highest level...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10
Inventor 顾勇蒋胜夏春何余勇张明金王飞雷晓张远盖程伟管安伟彭勇卢勇熊福江陈剑
Owner LUZHOU CO LTD SICHUAN TOBACCO
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