Method for roasting high-temperature drought premature tobacco leaves

A curing method and tobacco leaf technology are applied in the directions of tobacco, tobacco preparation, application, etc., which can solve the problems of tobacco malnutrition, difficulty in dehydration, and large losses, and achieve the goal of improving the curing quality of tobacco leaves, reducing curing losses, and reducing the proportion of tobacco leaves. Effect

Active Publication Date: 2014-04-09
LUZHOU CO LTD SICHUAN TOBACCO
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AI Technical Summary

Problems solved by technology

[0006] Drought pseudo-ripe tobacco leaves belong to tobacco leaves under special conditions. The tobacco leaves are malnourished, underdeveloped, not mature enough, with insufficient content, unreasonable chemical composition, low water content, dense leaf structure, strong water retention capacity, and difficult dehydration. The traditional tobacco leaf curing process is difficult to guarantee the quality of tobacco leaf curing
Using the traditional three-stage baking process, the proportion of medium tobacco leaves on the roasted tobacco leaves is only about 60%, the proportion of slightly green tobacco leaves in the middle and upper parts is high, reaching about 30%, and the proportion of variegated tobacco leaves is large, reaching more than 16%. The loss caused by improper baking process is huge

Method used

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  • Method for roasting high-temperature drought premature tobacco leaves

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the early stage of yellowing: after the tobacco leaves are loaded into the furnace and ignited, the temperature rises rapidly, and the dry bulb temperature is raised to 32°C at a heating rate of 2-3°C / h, and the wet bulb temperature is controlled at 32°C, and the temperature is stabilized for 4 hours; after that, the temperature is raised at a rate of 1°C / h Speed ​​up the dry bulb temperature to 35°C, keep the wet bulb temperature at 32°C, and stabilize the temperature for 2 hours. This stage is mainly moisturizing and yellowing. The 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, and 1 / 3 of the tip of the leaf turns yellow.

[0023] Mid-yellowing stage: raise the dry bulb temperature to 37°C and the wet bulb temperature to 32°C at a heating rate of 1°C / h, and keep the temperature stable for 12 hours; then keep the dry bulb temperature at 38°C and the wet bulb temper...

Embodiment 2

[0031] In the early stage of yellowing: after the tobacco leaves are loaded into the furnace and ignited, the temperature rises rapidly, and the dry bulb temperature is raised to 34°C at a heating rate of 2-3°C / h, and the wet bulb temperature is 32°C, and the temperature is stabilized for 4 hours; after that, the temperature is raised at a heating rate of 1°C / h The dry bulb temperature rose to 36°C, the wet bulb temperature was maintained at 32°C, and the temperature was stabilized for 2 hours. This stage is mainly moisturizing and yellowing. The 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, and 1 / 3 of the tip of the leaf turns yellow.

[0032] Mid-yellowing stage: raise the dry bulb temperature to 37.5°C and the wet bulb temperature to 32°C at a heating rate of 1°C / h, and keep the temperature stable for 8 hours; then keep the dry bulb temperature at 38°C and the wet bulb te...

Embodiment 3

[0040] Early stage of yellowing: Tobacco leaves heat up rapidly after the furnace is ignited, and the dry bulb temperature is raised to 32°C at a heating rate of 2-3°C / h, and the wet bulb temperature is 32°C, and the temperature is stabilized for 2 hours; then the temperature is raised at a heating rate of 1°C / h Raise the dry bulb temperature to 34°C, wet bulb temperature to 32°C, and stabilize the temperature for 2 hours; then raise the dry bulb temperature to 36°C at a heating rate of 1°C / h, keep the wet bulb temperature at 32°C, and stabilize the temperature for 2 hours. This stage is mainly moisturizing and yellowing. The 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, and 1 / 3 of the tip of the leaf turns yellow.

[0041] Mid-yellowing stage: raise the dry bulb temperature to 38°C and the wet bulb temperature to 32°C at a heating rate of 1°C / h, and keep the temperature sta...

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Abstract

The invention discloses a method for roasting high-temperature drought premature tobacco leaves. The method mainly includes the step of the early stage of yellowing, the step of the middle stage of yellowing, the steps o f the later stage of yellowing, the step of the early stage of color fixing, the step of the later stage of color fixing, and the step of the stem drying stage. According to the method, roasting losses of the high-temperature drought premature tobacco leaves are reduced by adjusting the roasting technological parameters, and the roasting quality of the tobacco leaves is remarkably improved. The proportion of the better-than-average tobacco leaves is obviously increased, the proportion of the variegated tobacco leaves is decreased, and the proportion of the tobacco leaves which are slightly greenish in the middle upper portions is greatly decreased.

Description

technical field [0001] The invention belongs to the field of tobacco leaf preparation, and in particular relates to a method for roasting high-temperature and dry pseudo-ripened tobacco leaves. Background technique [0002] Drought and fake cooked tobacco refers to tobacco leaves that are affected by high temperature, drought and adverse weather conditions. The nutrients in the tobacco leaves accumulate less, are consumed too much or are transferred to the growth center, resulting in a yellowed appearance of the tobacco leaves. [0003] Affected by high temperature and drought, soil moisture is insufficient, metabolism is hindered, tobacco plants lose a lot of water, and tobacco leaves appear premature yellowing and false ripening. If you rush to pick or bake improperly, it is very easy to bake green smoke or slightly green smoke; if you delay picking or bake improperly, it may cause severe leaves scorching or burns, and serious variegated and bad tobacco leaves. [0004] C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10A24B3/04
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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