Flue-cured tobacco upper leaf modulation method

A modulation method and flue-cured tobacco technology, applied in tobacco, tobacco preparation, application, etc., can solve the problems of curing loss, lax field management, heavy procurement tasks, etc.

Active Publication Date: 2021-01-29
YUNNAN ACAD OF TOBACCO AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the upper tobacco leaves are difficult to roast, serious ash, and poor quality after roasting are seriously prominent, which has become a bottleneck restricting the high-quality development of t...

Method used

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  • Flue-cured tobacco upper leaf modulation method
  • Flue-cured tobacco upper leaf modulation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] S100: According to the characteristics of the top leaves of the tobacco plant, such as mature spots, white and shiny main veins, and drooping leaf tips, the cut tobacco leaves are 4-6 pieces from the top, and the position is 10-15cm below the top. Harvested in Kunming Jijie Town, Xundian County, City, aimed at the K326 suitable ripe fresh tobacco leaves planted in this experiment, cut and harvested the rods with stems and put them in the furnace, with 35 tobacco plants per rod.

[0040] S200: Tobacco leaves that have been hung on the rods are pressed at 60kg / m 3 The density of the smoke is filled to 95% of the volume of the barn, and it is put into the air-flow up-and-down dense barn to be roasted.

[0041] S300: After a fire, rise to a dry bulb temperature of 32°C and a wet bulb temperature of 31°C within 3 hours, and stabilize the temperature for 8 hours, then increase the temperature at a rate of 1°C / 2h to a dry bulb temperature of 35°C, and a wet bulb temperature of...

Embodiment 2

[0048] S100: According to the characteristics of the top leaves of the tobacco plant, such as mature spots, white and shiny main veins, and drooping leaf tips, the cut tobacco leaves are 4-6 pieces from the top, and the position is 10-15cm below the top. Harvested in Kunming In Changhu Town, Shilin County, the NC102 suitable for ripening fresh tobacco leaves planted in this experiment was cut and harvested with stems and installed on poles, and 45 tobacco plants were hung on each pole.

[0049] S200: Tobacco leaves that have been hung on the rods are pressed at 70kg / m 3 The density of the smoke is filled to 97% of the volume of the barn, and it is put into the dense barn with descending air flow for roasting.

[0050] S300: After a fire, rise to a dry bulb temperature of 33°C and a wet bulb temperature of 32°C in 4 hours, and stabilize the temperature for 12 hours, then increase the temperature at a rate of 1°C / 2h to a dry bulb temperature of 38°C, and a wet bulb temperature o...

Embodiment 3

[0057] S100: According to the characteristics of the top leaves of the tobacco plant, such as mature spots, white and shiny main veins, and drooping leaf tips, the cut tobacco leaves are 4-6 pieces from the top, and the position is 10-15cm below the top. Harvested in Kunming Jijie Town, Xundian County, City, planted Yunyan 86 suitable for ripe fresh tobacco leaves for this experiment, cut and harvested with stems and hung poles for furnace installation, with 35 tobacco plants per pole.

[0058] S200: Tobacco leaves that have been hung on the rods are pressed at 65kg / m 3 The density of the smoke is filled to more than 96% of the volume of the barn, and it is loaded into the air-flow down-type dense barn to be baked.

[0059] S300: After a fire, rise to a dry bulb temperature of 33°C and a wet bulb temperature of 31°C within 5 hours, and stabilize the temperature for 10 hours, then increase the temperature at a rate of 1°C / 2h to a dry bulb temperature of 37°C, and a wet bulb tem...

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Abstract

The invention discloses a flue-cured tobacco upper leaf modulation method, which is characterized in that tobacco leaf raw materials are put into a curing barn for curing after being subjected to earlier stage treatment. The method comprises the steps of 1) earlier stage of yellowing, 2) middle stage of yellowing, 3) later stage of yellowing, 4) earlier stage of color fixing, 5) later stage of color fixing, and 6) stem drying stage. The earlier stage treatment of the tobacco leaf raw materials comprises chopping and harvesting, hanging on a rod and charging, wherein the chopping and harvestingrefers to chopping and harvesting 4-6 pieces of fresh tobacco leaves at the upper part, the chopping and harvesting position is 10-15cm below the top, and the fresh tobacco leaves need to have the following obvious characteristics: mature spots, white and bright main veins and leaf edge and leaf tip curl hook sagging. According to the modulation method, modulation is conducted by accurately controlling the temperature rising speed, the temperature and humidity points and the temperature stabilizing time of each stage and observing the change condition of the tobacco leaves of each stage according to the baking characteristics of the upper tobacco leaves with stems. The method is easy to operate and flexible in adjustment, and achieves the baking targets of reducing labor and cost, reducing the proportion of ash-hanging miscellaneous tobacco, improving the income of tobacco growers and the like.

Description

technical field [0001] The invention belongs to the technical field of tobacco leaf preparation, and in particular relates to a method for preparing the upper leaves of flue-cured tobacco. Background technique [0002] With the deepening of the high-quality development of tobacco leaves, in terms of tobacco leaf curing, the previous blue veins and ash-hanging tobacco leaves will be greatly reduced, which puts forward higher requirements for tobacco leaf curing. On the one hand, the upper tobacco leaves are difficult to roast, serious ash, and poor quality after roasting are seriously prominent, which has become a bottleneck restricting the high-quality development of tobacco leaves; , Severe disease and insect pests, rainy and little sunshine caused by special climate, heavy procurement tasks and other factors, resulting in serious baking losses (upper leaves amount to more than 60%). In terms of the loss types of upper tobacco leaves during curing, it is mainly due to the ...

Claims

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Application Information

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IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 赵高坤喻曦尹金生余凤菊虎玉林杨光普段忠德张继旭姜永雷胡彬彬冀新威杨学书陈泽林王成
Owner YUNNAN ACAD OF TOBACCO AGRI SCI
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