Flue-cured tobacco variety NC297 tobacco leaf curing method

A curing method and a technology for flue-cured tobacco varieties, which are applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of reduced oil content, reduced aroma, light color of tobacco leaves, etc., and can achieve sufficient aroma, high aroma and low starch content. Effect

Inactive Publication Date: 2017-03-22
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-cured tobacco variety NC297 tobacco leaf curing method
  • Flue-cured tobacco variety NC297 tobacco leaf curing method
  • Flue-cured tobacco variety NC297 tobacco leaf curing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The invention discloses a method for curing tobacco leaves of flue-cured tobacco variety NC297. NC297 is obtained by planting in red soil, and the age of tobacco leaves in the middle part is 105 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 34.5°C at a rate of 1°C / 3h, control the wet bulb temperature to 34.5°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 36.0°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.

[0041] (3) 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 tempera...

Embodiment 2

[0052] A method for curing tobacco leaves of flue-cured tobacco variety NC297. NC297 is obtained by planting in red soil, and the age of the lower tobacco leaves of NC297 is 60 days 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 34.7°C at a rate of 1°C / 3h, control the wet bulb temperature to 34.3°C, and stabilize the temperature for 2h; the frequency of the motor changes to 32Hz, and the speed is 480r / min.

[0055] (2) Initial stage of yellowing: Raise the temperature in the barn to 36.2°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.

[0056] (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 temperatur...

Embodiment 3

[0067] A method for curing tobacco leaves of flue-cured tobacco variety NC297. NC297 is obtained by planting in red soil, and the age of the upper tobacco leaves of the NC297 is 120 days 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 34.3°C at a rate of 1°C / 3h, control the wet bulb temperature to 34.2°C, and stabilize the temperature for 2h; the motor frequency changes to 28Hz, and the speed is 520r / min.

[0070] (2) Initial stage of yellowing: Raise the temperature in the barn to 35.8°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.2°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 37.2°C at a rate of 0.1°C / h, control the wet bulb temperature ...

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Abstract

The invention belongs to the technical field of tobacco processing, and in particular relates to a flue-cured tobacco variety NC297 tobacco leaf curing method. According to the curing method provided by the invention, lower tobacco leaves, middle tobacco leaves and upper tobacco leaves of NC297 planted in Yunnan red soil are cured in different curing barns; temperature in a tobacco leaf yellowing stage in the curing barns is slowly increased; in different curing stages, namely the yellowing stage, a leaf-drying stage and a stem-drying stage, circulating fans are achieved for implementing variable-frequency regulation and control, and an entire curing stage includes 10 small sections; meanwhile, in the yellowing stage, temperature is increased at a low speed, and the temperature in the yellowing stage is controlled within 38.5 DEG C; the yellowing stage is prolonged for 12h at stable medium-high temperature and the middle and later leaf-drying stage is prolonged for 12h at stable temperature; and finally cured NC297 is high in appearance quality, and moreover, intrinsic chemical ingredients of the tobacco leaves are coordinated, the sensory smoking quality of the tobacco leaves is improved and economic benefit is increased.

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 NC297. Background technique [0002] NC297 is a hybrid F1 variety bred by the American Golden Leaf Seed Company in 1998. It passed the North Carolina official variety test in 2000 and was recommended by North Carolina officials for trial planting in 2001. After the introduction and planting in Yunnan, my country, its natural plant height is about 130 cm. The field growth period is 110-120 days, the number of effective leaves per plant is 21.7, and it is resistant to black shank, root rot and root-knot nematode. Good fat tolerance. The content of chemical components is moderate, the proportion is basically coordinated, the amount of aroma is moderate, the miscellaneous gas is light, the irritation is small, and the energy is medium to low. [0003] The quality and style characteristics of to...

Claims

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Application Information

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IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 陈泽鹏
Owner GUANGDONG BRANCH OF CHINA TOBACCO GENERAL
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