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Roasting method of high-temperature droughty unripe tobacco leaves

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

Active Publication Date: 2015-06-10
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] In the early stage of yellowing: the tobacco leaves are heated up rapidly after being ignited in the furnace, the dry bulb temperature is raised to 35°C at a heating rate of 2-3°C / h, the wet bulb temperature is controlled at 35°C, and the temperature is stabilized for 10 hours. At this stage, moisturizing and yellowing are the main factors. The tobacco leaves sweat when heated, the tips of the leaves become soft, the leaves in the high temperature layer germinate and turn yellow, 1 / 3 of the tips of the leaves turn yellow, and 5-60% of the leaves turn yellow, and the next roasting stage is transferred.

[0027] In the middle stage of yellowing: increase 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 increase the dry bulb temperature to 39°C and the wet bulb temperature to 37°C. Steady the temperature for 2 hours; then keep the dry bulb temperature at 39°C and the wet bulb te...

Embodiment 2

[0035] In the early stage of yellowing: the tobacco leaves are heated up quickly after being ignited in the furnace, and the dry bulb temperature is raised to 36°C and the wet bulb temperature is 35°C at a heating rate of 2-3°C / h, and the temperature is stabilized for 10 hours. Mainly moisturizing and yellowing, the tobacco leaves are heated and sweating, the tips of the leaves become soft, the leaves in the high temperature layer germinate and turn yellow, 1 / 3 of the tips of the leaves turn yellow, and 5-60% of the leaves turn yellow, and move to the next roasting stage.

[0036] In the middle stage of yellowing: increase 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 increase the dry bulb temperature to 39°C and the wet bulb temperature to 38°C, Steady 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 t...

Embodiment 3

[0044] In the early stage of yellowing: the tobacco leaves are heated up quickly after being ignited in the furnace, and the dry bulb temperature is raised to 36°C and the wet bulb temperature is 36°C at a heating rate of 2-3°C / h, and the temperature is stabilized for 8 hours. Mainly moisturizing and yellowing, the tobacco leaves are heated and sweating, the tips of the leaves become soft, the leaves in the high temperature layer germinate and turn yellow, 1 / 3 of the tips of the leaves turn yellow, and 5-60% of the leaves turn yellow, and move to the next roasting stage.

[0045]In the middle stage of yellowing: increase the dry bulb temperature to 38°C and the 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 it on for 5 minutes; then increase the dry bulb temperature to 39°C , the wet bulb temperature is 38 ℃, the fan is stopped after the temperature is stabilized for 2 hours, and ...

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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 curing under-ripe tobacco leaves under high temperature and drought. Background technique [0002] Affected by high temperature and drought, soil moisture is insufficient, metabolism is blocked, and tobacco plants lose a lot of water. Affected by high temperature and drought, tobacco leaf picking must be completed in the shortest time to avoid serious leaf scorch or burns. In the process of tobacco leaf harvesting, the actual problem of underripe tobacco leaves is often faced, and green tobacco, slightly green tobacco, severe variegated and bad tobacco leaves are easily cured. [0003] Drought and underripe tobacco leaves belong to the tobacco leaves under special conditions. Tobacco leaves have completed growth and development, reached the highest biological yield, and reached the highest dry matter accumulation, and began to show some mature characteristics...

Claims

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Application Information

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Patent Type & Authority Patents(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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