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A method for drying tobacco leaves of flue-cured tobacco varieties

A technology of flue-cured tobacco varieties and production methods, which is applied in the field of tobacco, can solve the problems of no mature technical solutions, etc., and achieve the effect of small miscellaneous gas, meeting the demand, and obvious aroma characteristics

Active Publication Date: 2020-11-17
CHINA TOBACCO SICHUAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few technical reports on sun-curing of flue-cured tobacco leaves, and there are no mature technical solutions for reference by those skilled in the art

Method used

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  • A method for drying tobacco leaves of flue-cured tobacco varieties
  • A method for drying tobacco leaves of flue-cured tobacco varieties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The flue-cured tobacco plant is Yunyan 85.

[0027] Harvesting tobacco leaves: Harvest and sun-cure by cutting the plants in half, and take the tobacco leaves above the middle (remove the top leaves). Tobacco leaf harvesting standard: leaf color is chlorotic and fully yellow, mature, main veins and branches are all white, leaf wrinkles, mature spots protruding, showing yellow-white blisters, leaf ears turn yellow, leaf tips droop, leaf margins roll down, fluff fall off.

[0028] Immediately after the tobacco leaves are harvested, they are hung in the shed for drying. The drying racks used to hang the flue-cured tobacco plants in the drying shed shall be built according to the following requirements:

[0029] Prepare several long bamboo poles for hanging flue-cured tobacco plants. The actual number depends on the size of the awning. Reserve a section at both ends of each bamboo pole for hanging. 7 holes with a spacing of 20cm. Each hole is fixed with a wire hook, and ...

Embodiment 2

[0036] The flue-cured tobacco plant is Yunyan 87. Tobacco leaf harvesting method and standard are the same as in Example 1. The method of building the drying rack in the sun shed is the same as in Example 1.

[0037] After the drying rack is built, the flue-cured tobacco plants are hung upside down on the iron hooks. After the hanging is completed, the drying begins. The drying stage includes four stages: withering period, yellowing period, color fixing period and tendon drying period. The control conditions of each stage as follows:

[0038] Withering period: The ventilating and dehumidifying windows of the drying shed are fully opened during the day and closed at night. The humidity in the shed is controlled at 90% and the temperature is 30°C. After drying for 36 hours, it is observed that the leaves become soft and withered, and the tips and edges of the leaves turn yellow. move on to the next stage;

[0039] Yellowing period: the distance between adjacent long bamboo po...

Embodiment 3

[0043] The flue-cured tobacco plant is Honghua Dajinyuan. Tobacco leaf harvesting method and standard are the same as in Example 1. The method of building the drying rack in the sun shed is the same as in Example 1.

[0044] After the drying rack is built, the flue-cured tobacco plants are hung upside down on the iron hooks. After the hanging is completed, the drying begins. The drying stage includes four stages: withering period, yellowing period, color fixing period and tendon drying period. The control conditions of each stage as follows:

[0045] Withering period: The ventilating and dehumidifying window of the drying shed is fully opened during the day and closed at night. The humidity in the shed is controlled at 90% and the temperature is 25°C. After drying for 2 days, it is observed that the leaves become soft and withered, and the tips and edges of the leaves turn yellow. , enter the next stage;

[0046] Yellowing period: the distance between adjacent long bamboo pol...

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Abstract

The invention discloses a method for drying tobacco leaves of a flue-cured tobacco variety. The method includes harvesting the middle upper part of the tobacco leaves of the flue-cured tobacco varietyby using a half-chopping mode; erecting a drying rack and drying the tobacco leaves in a shed in a suspension mode, wherein the drying process includes four stages of a wilting stage, a yellowing stage, a leaf drying stage, a stem drying stage where humidity, temperature and time are controlled respectively; observing leaf changes to enter the next stage after meeting certain requirements; grading the dried flue-cured tobacco plants according to the part immediately after the stem drying stage. The flue-cured tobacco plants are selected from Yunyan 85, Yunyan 87, Honghua Daijinyuan and K326 varieties. According to the method, the flue-cured tobacco plants are dried into tobacco leaves which are low in total nitrogen and total plant alkaloid content, irritation, strength and offensive odor, clean, soft and fine in smoke, good in aroma and texture, sufficient in aroma, obvious in aroma characteristic and remarkable in bean fragrance, and has roasting fragrance and sweetness and smooth aroma state. The tobacco leaves can meet the requirements of sweet and fragrant products for raw materials.

Description

technical field [0001] The invention relates to the field of tobacco, and more specifically, the invention relates to a method for preparing tobacco raw materials by using a sun-drying process using flue-cured tobacco leaves. Background technique [0002] Flue-cured tobacco and air-cured tobacco are usually different types and varieties of tobacco leaf raw materials, and adopt different modulation methods. At present, the flue-cured tobacco usually adopts the tobacco leaf variety with the characteristic aroma of flue-cured tobacco; the air-dried tobacco leaf adopts the tobacco leaf variety with the characteristic aroma of cigar. Flue-cured tobacco is prepared by baking fresh tobacco leaves with hot air. The most popular type of cigarette in China is flue-cured tobacco, and flue-cured tobacco is its main raw material; the modulation method of air-cured tobacco is different from that of roasting. Air-cured tobacco is generally used to roll blended cigarettes or cigars. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B1/08A24B1/02
CPCA24B1/02A24B1/08
Inventor 宋世旭周文刘仡王佩刘路路杨振黄洋李品鹤贾玉红胡希
Owner CHINA TOBACCO SICHUAN IND CO LTD
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