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Flue-curing method for flue-cured tobacco NC87 tobacco leaves

A technology of flue-cured tobacco varieties and curing methods, applied in the fields of tobacco, tobacco preparation, application, etc., which can solve the problems of reduced oil content, reduced aroma, and light color of tobacco leaves, and achieve a high aroma, high aroma quality, and low starch content. 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 NC87 tobacco leaves
  • Flue-curing method for flue-cured tobacco NC87 tobacco leaves
  • Flue-curing method for flue-cured tobacco NC87 tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for curing tobacco leaves of a flue-cured tobacco variety Yunyan 87. The Yunyan 87 is planted in purple 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.

[0039] Yellowing period:

[0040] (1) Fire temperature control: raise the temperature in the barn to 35.5°C at a rate of 1°C / 3h, control the wet bulb temperature to 35.0°C, and stabilize the temperature for 2h; the frequency of the motor is changed to 30Hz, and the speed is 500r / min.

[0041] (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 35.5°C, and stabilize the temperature for 30 hours; the frequency of the motor changes to 35Hz, and the speed is 720r / min.

[0042] (3) Middle stage of yellowing: Raise the temperature in the barn to 38.0°C at a rate of 0.1°C / h, control the wet bulb temperature to 36.5°C, and keep...

Embodiment 2

[0053] A method for curing tobacco leaves of flue-cured tobacco variety Yunyan 87. Yunyan 87 is planted in purple soil, and the lower tobacco leaves of Yunyan 87 are 55 days old during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0054] Yellowing period:

[0055] (1) Fire temperature control: Raise the temperature in the barn to 35.3°C at a rate of 1°C / 3h, control the wet bulb temperature to 35.2°C, and stabilize the temperature for 2h; the frequency of the motor changes to 32Hz, and the speed is 480r / min.

[0056] (2) Initial stage of yellowing: Raise the temperature in the barn to 36.8°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.7°C, and stabilize the temperature for 34 hours; the frequency of the motor changes to 37Hz, and the speed is 700r / min.

[0057] (3) Middle stage of yellowing: Raise the temperature in the barn to 37.9°C at a rate of 0.1°C / h, control the wet bulb temperature to...

Embodiment 3

[0068] A method for curing tobacco leaves of flue-cured tobacco variety Yunyan 87. Yunyan 87 is grown in purple soil, and the upper leaf of Yunyan 87 is 115 days old during curing. The roasting process includes the yellowing period, the color fixing period and the gluten-drying period.

[0069] Yellowing period:

[0070] (1) Fire temperature control: Raise the temperature in the barn to 35.7°C at a rate of 1°C / 3h, control the wet bulb temperature to 35.2°C, and stabilize the temperature for 2h; the frequency of the motor changes to 28Hz, and the speed is 520r / min.

[0071] (2) Initial stage of yellowing: Raise the temperature in the barn to 36.8°C at a rate of 0.1°C / h, control the wet bulb temperature to 35.7°C, and keep the temperature stable for 28 hours; the frequency of the motor changes to 33Hz, and the speed is 740r / min.

[0072] (3) Middle stage of yellowing: Raise the temperature in the barn to 37.9°C at a rate of 0.1°C / h, control the wet bulb temperature to 36.7°C, a...

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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 NC87 tobacco leaves. The method comprises the steps that purple soil is planted to obtain lower tobacco leaves, middle tobacco leaves and upper tobacco leaves of NC87 to be flue-cured in different curing barns separately, the temperature is increased slowly inthe 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 fixationperiod 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 temperatureof the yellowing period is controlled to be 389 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 NC87 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 flue-cured tobacco variety Yunyan 87. Background technique [0002] Yunyan 87 was bred by the Nanxiong Tobacco Research Institute of Guangdong and the China Tobacco Breeding Research (South) Center with Yunyan No. 2 as the female parent and K326 as the male parent. In December 2000, it was approved by the National Variety Approval Committee. Tower-type plant, tube-shaped after topping, natural plant height 178-185 cm, topping plant height 110-118 cm, 25-27 leaves in field, 18-20 effective leaves; oblong waist leaves Shape, 73-82 cm long, 28.2-34 cm wide, wrinkled leaves, dark green leaf color, acuminate leaf tips, wavy leaf margins; large ears, few flowering branches, relatively concentrated, red flower color; pitch 5.5-5. 6.5 cm, the leaves are evenly distributed up and down; the field growth period is 110-115 days; ...

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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