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Flue-curing method for flue-cured tobacco Yunnan 99 tobacco leaves

A technology of flue-cured tobacco varieties and curing methods, which is applied to tobacco, tobacco preparation, application and other directions, can solve the problems of reduced aroma, light color of tobacco leaves, reduced oil content, etc. Effect

Inactive Publication Date: 2018-06-05
GUANGDONG BRANCH OF CHINA TOBACCO GENERAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the popularization and application, it was found that a considerable part of the tobacco leaves after roasting in intensive barns were lighter in color, less oily, and less fragrant.

Method used

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  • Flue-curing method for flue-cured tobacco Yunnan 99 tobacco leaves
  • Flue-curing method for flue-cured tobacco Yunnan 99 tobacco leaves
  • Flue-curing method for flue-cured tobacco Yunnan 99 tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for curing tobacco leaves of flue-cured tobacco variety Yunyan 99. Yunyan 99 is planted in red loam soil, and the leaf age in the middle part is 104 days. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0038] Yellowing period:

[0039](1) Fire temperature control: raise the temperature in the barn to 36.0°C at a rate of 1°C / 3h, control the wet bulb temperature to 35.0°C, and stabilize the temperature for 2h; the motor frequency changes to 30Hz, and the speed is 500r / min.

[0040] (2) Initial stage of yellowing: Raise the temperature in the barn to 37.0°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.3°C, and stabilize the temperature for 30 hours; the frequency of the motor changes to 35Hz, and the speed is 720r / min.

[0041] (3) In the middle stage of yellowing: raise the temperature in the barn to 38.5°C at a rate of 0.1°C / h, control the wet bulb temperature to 36.1°C, and stabilize ...

Embodiment 2

[0052] A method for curing tobacco leaves of flue-cured tobacco variety Yunyan 99. Yunyan 99 is planted in red loam soil, and the lower tobacco leaves of Yunyan 99 are 55 days old during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0053] Yellowing period:

[0054] (1) Fire temperature control: Raise the temperature in the barn to 36.2°C at a rate of 1°C / 3h, control the wet bulb temperature to 35.0°C, and stabilize the temperature for 2h; the motor frequency changes to 32Hz, and the speed is 480r / min.

[0055] (2) Initial stage of yellowing: Raise the temperature in the barn to 37.2°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.5°C, and stabilize the temperature for 34 hours; the frequency of the motor changes to 37Hz, and the speed is 700r / min.

[0056] (3) Middle stage of yellowing: Raise the temperature in the barn to 38.2°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.9...

Embodiment 3

[0067] A method for curing tobacco leaves of flue-cured tobacco variety Yunyan 99. Yunyan 99 is planted in red loam soil, and the upper tobacco leaf of Yunyan 99 is 115 days old during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0068] Yellowing period:

[0069] (1) Fire temperature control: Raise the temperature in the barn to 36.2°C at a rate of 1°C / 3h, control the wet bulb temperature to 30.2°C, and stabilize the temperature for 2h; the frequency of the motor changes to 28Hz, and the speed is 520r / min.

[0070] (2) Initial stage of yellowing: Raise the temperature in the barn to 37.2°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.3°C, and stabilize the temperature for 28 hours; the frequency of the motor changes to 33Hz, and the speed is 740r / min.

[0071] (3) Middle stage of yellowing: Raise the temperature in the barn to 38.7°C at a rate of 0.1°C / h, control the wet bulb temperature to...

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Abstract

The invention belongs to the technical field of tobacco processing, and particularly relates to a flue-curing method for flue-cured tobacco Yunnan 99 tobacco leaves. The method comprises the steps that red soil is planted to obtain lower tobacco leaves, middle tobacco leaves and upper tobacco leaves of Yunnan 99 to be flue-cured in different curing barns separately, the temperature is increased slowly in the tobacco leaf yellowing period inside the curing barns, frequency conversion control is performed on a circulating fan adopted in different flue-curing stages of the yellowing period, the fixation period and the stem-drying period, and the whole flue-curing stage is divided into ten small stages; meanwhile, the temperature is increased at low speed in the yellowing period, and the temperature of the yellowing period is controlled to be 39.5 DEG C or below; the high and medium temperature yellowing steady temperature period is prolonged by 12 h, and the fixation middle and later period steady temperature period is prolonged by 12 h; finally, the Yunnan 99 obtained after flue-curing is superior in appearance and quality, chemical components inside the tobacco leaves can be coordinated, the tobacco leaf sensory evaluation quality is improved, and economic benefits are improved.

Description

technical field [0001] The invention belongs to the technical field of tobacco processing, and in particular relates to a method for curing tobacco leaves of a flue-cured tobacco variety Yunyan 99. Background technique [0002] Yunyan 99 is a new variety of flue-cured tobacco bred by Yunnan Academy of Tobacco Agricultural Sciences and China Tobacco Breeding Research (South) Center by crossing Yunyan 85 and 9147. It passed the Sixth National Tobacco Variety Approval Committee on December 13, 2011 Approved. This variety has a tower-shaped plant, long oval leaves, green leaf color, medium stem and leaf angle, slightly thick main veins, strong growth in the field, and good uniformity. It is about 60 days after transplanting to budding, and the characteristics of layered yellowing are obvious. The growth period is 120d~130d, the number of effective leaves is 18~20, the stem circumference is 10cm~11cm, the pitch is 5.2cm~6.4cm, the largest waist leaf is 69cm~75cm long and 28cm~35...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 陈泽鹏
Owner GUANGDONG BRANCH OF CHINA TOBACCO GENERAL
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