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Method for improving curing quality of tender mature-delay tobacco leaves

A tobacco leaf and black storm technology, applied in tobacco, tobacco preparation, application, etc., can solve problems such as difficulty in dehumidification, slow yellowing, and intolerance to baking

Active Publication Date: 2016-02-03
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is not resistant to baking during the baking process. It turns yellow slowly in the early stage of yellowing, and quickly turns yellow in the later stage. If the color is not fixed in time after turning yellow, it is easy to deteriorate, or due to concentrated evaporation of water during the color fixing period, it will cause difficulty in dehumidification, resulting in steamed flakes , bad film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] ——Roasting of tender black storm tobacco leaves of Yunyan 87 variety

[0030] (1) Harvesting tobacco leaves: Harvesting tobacco leaves that have matured to greenish-yellow with yellow tips.

[0031] (2) Tobacco leaf charging: the density of smoke in the barn is 40kg / m 3 , Fill the barn to 85% of its volume.

[0032] (3) Tobacco leaf curing: a three-stage curing process is adopted, specifically including the yellowing stage, the color fixing stage and the gluten drying stage.

[0033] Yellowing stage: set the dry bulb temperature at 38°C and wet bulb temperature at 35°C at the initial stage of yellowing. When the bottom tobacco leaves turn 50% to 60% yellow and half of the main tendons of the leaves become soft, increase the temperature by 1°C / 1.5h Speed, raise the dry bulb temperature from 38°C to 43°C, raise the wet bulb temperature from 35°C to 37°C, and when the dry bulb temperature rises to 43°C, adjust the humidity exhaust fan to high speed, and the power of the ...

Embodiment 2

[0038] ——Roasting of K326 tender black storm tobacco leaves

[0039] (1) Harvesting tobacco leaves: Harvesting tobacco leaves that have matured to greenish-yellow with yellow tips.

[0040] (2) Tobacco leaf charging: the density of smoke in the barn is 38kg / m 3 , Fill the barn to 90% of its volume.

[0041] (3) Tobacco leaf curing: a three-stage curing process is adopted, specifically including the yellowing stage, the color fixing stage and the gluten drying stage.

[0042]Yellowing stage: set the dry bulb temperature at 39°C and wet bulb temperature at 36°C at the initial stage of yellowing. When the bottom tobacco leaves turn 50% to 60% yellow and half of the main tendons of the leaves become soft, use a heating rate of 1°C / 1h , raise the dry bulb temperature from 39°C to 43°C, raise the wet bulb temperature from 36°C to 37°C, and when the dry bulb temperature rises to 43°C, adjust the humidity exhaust fan to high speed, and the power of the moisture exhaust fan is 1500W ...

Embodiment 3

[0047] ——Roasting of tender black storm tobacco leaves of Yunyan 97 variety

[0048] (1) Harvesting tobacco leaves: Harvesting tobacco leaves that have matured to greenish-yellow with yellow tips.

[0049] (2) Tobacco leaf charging: the density of smoke in the barn is 39kg / m 3 , Fill the barn to 87% of its volume.

[0050] (3) Tobacco leaf curing: a three-stage curing process is adopted, specifically including the yellowing stage, the color fixing stage and the gluten drying stage.

[0051] Yellowing stage: set the dry bulb temperature at 39°C and wet bulb temperature at 36°C at the initial stage of yellowing. When the bottom tobacco leaves turn 50% to 60% yellow and half of the main tendons of the leaves become soft, use a heating rate of 1°C / 2h , raise the dry bulb temperature from 39°C to 43°C, raise the wet bulb temperature from 36°C to 37°C, and when the dry bulb temperature rises to 43°C, adjust the humidity exhaust fan to high speed, and the power of the moisture exha...

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Abstract

The invention discloses a method for improving the curing quality of tender mature-delay tobacco leaves. According to the method, the tobacco leaf harvesting standards include that tobacco leaves are mature to be yellowing in green and have yellow leaf tips, the smoke filling density in a curing room is 38-40 kg / m<3> and the curing room is filled with smoke accounting for 85-90% of the volume. Through the three-stage baking process, the method specifically includes the yellowing stage, the color fixing stage and the vein drying stage till main veins of tobacco leaves in the whole curing room are cured to be dry. In the later period of the yellowing stage, the wind speed among tobacco leaves in the curing room reaches 0.3-0.4 m / s in the high wind speed layer, reaches 0.25-0.35 m / s in the medium wind speed layer and reaches 0.2-0.3 m / s in the low wind speed layer. The curing method is particularly suitable for lower tobacco leaves formed under the conditions of high water and fertilizer, high densities, inharmonious nutrients and too much nitrogen, leaves are fat, high in water content, high in moisture holding capacity and little in dry substance, nitrogen compounds are mainly contained, and the problems that tobacco leaves have no maturity delay capacity in the field and can get rotted before being mature are solved. The method is easy to operate, the curing quality of tender mature-delay tobacco leaves can be improved, loss can be reduced, and income of tobacco farmers is increased.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf curing, and in particular relates to a method for improving the curing quality of tender black tobacco leaves. Background technique [0002] Tobacco curing is the key to determine the quality of tobacco leaves. Scientific roasting can produce high-quality tobacco leaves to meet the needs of cigarette formulations. Tobacco leaves in the field, due to climate, soil factors, and inadequate cultivation techniques, will cause some difficult-to-cure and poor-quality fresh tobacco, which will affect the income of tobacco farmers. [0003] Tender black storm tobacco leaves are mostly lower tobacco leaves formed under the conditions of high water and fertilizer, high density, uncoordinated nutrients, and excessive nitrogen. Leaf hypertrophy, high water content, strong water retention capacity, less dry matter and mainly nitrogen-containing compounds, it is not resistant to maturity in the field, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10
Inventor 黄维崔国民赵高坤
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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