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Flue-curing method for flue-cured tobacco NC55 tobacco leaves

A curing method and flue-cured tobacco variety technology, applied in tobacco, tobacco preparation, application, etc., can solve the problems of light color, reduced oil content, and reduced aroma of tobacco leaves, and achieve high aroma quality, sufficient aroma, and high industrial usability. Effect

Inactive Publication Date: 2018-06-05
GUANGDONG BRANCH OF CHINA TOBACCO GENERAL +1
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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 NC55 tobacco leaves
  • Flue-curing method for flue-cured tobacco NC55 tobacco leaves
  • Flue-curing method for flue-cured tobacco NC55 tobacco leaves

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The invention discloses a method for curing tobacco leaves of flue-cured tobacco variety NC55. The NC55 is obtained by planting brown loam soil, and the tobacco 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.

[0037] Yellowing period:

[0038] (1) Fire temperature control: Raise the temperature in the barn to 35.2°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 30Hz, and the speed is 500r / min.

[0039](2) Initial stage of yellowing: Raise the temperature in the barn to 36.5°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.0°C, and stabilize the temperature for 30 hours; the frequency of the motor changes to 35Hz, and the speed is 720r / min.

[0040] (3) Middle 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 temper...

Embodiment 2

[0051] A method for curing tobacco leaves of flue-cured tobacco variety NC55. NC55 is obtained by planting in brown loam soil, and the age of the lower tobacco leaves of the NC55 is 55 days during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0052] Yellowing period:

[0053] (1) Fire temperature control: raise the temperature in the barn to 35.0°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 32Hz, and the speed is 480r / min.

[0054] (2) Initial stage of yellowing: Raise the temperature in the barn to 36.7°C at a rate of 0.1°C / h, control the wet bulb temperature to 34.9°C, and stabilize the temperature for 34 hours; the frequency of the motor changes to 37Hz, and the speed is 700r / min.

[0055] (3) Middle stage of yellowing: Raise the temperature in the barn to 37.4°C at a rate of 0.1°C / h, control the wet bulb temperatu...

Embodiment 3

[0066] A method for curing tobacco leaves of flue-cured tobacco variety NC55. NC55 is obtained by planting in brown loam soil, and the age of the upper tobacco leaves of the NC55 is 115 days during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0067] Yellowing period:

[0068] (1) Fire temperature control: raise the temperature in the barn to 35.0°C at a rate of 1°C / 3h, control the wet bulb temperature to 34.8°C, and stabilize the temperature for 2h; the motor frequency changes to 28Hz, and the speed is 520r / min.

[0069] (2) Initial stage of yellowing: Raise the temperature in the barn to 36.3°C at a rate of 0.1°C / h, control the wet bulb temperature to 34.8°C, and keep the temperature stable for 28 hours; the frequency of the motor changes to 33Hz, and the speed is 740r / min.

[0070] (3) In the middle 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...

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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 NC55 tobacco leaves. The method comprises the steps that brunisolic soil is planted to obtain lower tobacco leaves, middle tobacco leaves and upper tobacco leaves of NC55 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 38 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 NC55 obtained after flue-curing is superior in appearance and quality, chemical components inside the tobacco leaves can be coordinated, thetobacco 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 flue-cured tobacco variety NC55. Background technique [0002] NC55 is a flue-cured tobacco variety imported from the United States. It has a slightly longer growth period, a slightly smaller stem circumference, is resistant to PVY, has increased average price, output value, and the proportion of high-quality tobacco. [0003] The quality and style characteristics of tobacco leaves are gradually formed during the growth and development of tobacco leaves. It is reflected through the modulation technology. The fundamental purpose of tobacco leaf curing is to reveal and maximize the quality potential of tobacco leaves formed and accumulated in the agronomic process. . [0004] Intensive curing barn is a new type of flue-cured tobacco curing equipment widely used in tobacco leaf producing areas in recent years, and it is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 贺广生李文才王晓宾汪军钟俊周王晓剑郭鸿雁文志强陈泽鹏
Owner GUANGDONG BRANCH OF CHINA TOBACCO GENERAL
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