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A method for roasting loose leaves of flue-cured tobacco with two fast methods and one slow method

A curing method and tobacco leaf technology are applied in the directions of tobacco, tobacco preparation, application, etc., and can solve the problems affecting the appearance quality and production efficiency of tobacco leaves, fast chlorophyll degradation rate, long tobacco leaf curing time, etc. Delay the baking time, solve the effect of heating and dehumidification

Inactive Publication Date: 2017-01-11
BIJIE COMPANY OF GUIZHOU TOBACCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The curing methods in the prior art have been continuously practiced and developed. The currently used three-stage five-step method and three-stage six-step method are improvements to the three-stage curing method, but both have long tobacco leaf curing time. , many links, high fuel consumption and other problems, which increase the cost of flue-cured tobacco, and there are still faster aging of tobacco leaves, faster degradation of chlorophyll, faster yellowing, and more side-group tobaccos will appear after baking, especially miscellaneous The problem of excessive color and smoke seriously affects the appearance quality and production efficiency of tobacco leaves

Method used

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  • A method for roasting loose leaves of flue-cured tobacco with two fast methods and one slow method
  • A method for roasting loose leaves of flue-cured tobacco with two fast methods and one slow method
  • A method for roasting loose leaves of flue-cured tobacco with two fast methods and one slow method

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A two-fast and one-slow flue-cured tobacco loose leaf baking method of the present invention comprises the following steps:

[0029] (1) Yellowing stage: After the kang is installed, turn on the circulation fan and run for 2 hours;

[0030] After ignition, the dry and wet bulb temperature was raised to 33°C for 3 hours, and the temperature was stabilized for 4 hours;

[0031] After that, the dry bulb temperature was raised to 38°C at a rate of 1°C / h, and when the wet bulb temperature was raised to 36°C, the temperature was stabilized for 20 hours. After the tobacco leaves in the high temperature layer and the middle temperature layer were all yellow, the dry bulb temperature was stabilized and the wet bulb temperature was reduced. When the temperature reaches 35°C, increase the dry bulb temperature by 2°C at a rate of 1°C / 2h, reduce the wet bulb temperature to 34°C, and bake at a steady temperature for 10 hours when the dry and wet bulb temperatures are 40°C / 34°C, until...

Embodiment 2

[0037] A two-fast and one-slow flue-cured tobacco loose leaf baking method of the present invention comprises the following steps:

[0038] (1) Yellowing stage:

[0039] After the kang is installed, turn on the circulation fan and run for 2.5 hours;

[0040] After ignition, the dry and wet bulb temperature was raised to 33.5°C for 3 hours, and the temperature was stabilized for 4.5 hours;

[0041] Afterwards, the dry bulb temperature was raised to 38.5°C at a rate of 1°C / h, and when the wet bulb temperature was raised to 36.5°C, stable temperature baking was carried out for 22.5 hours. When the bulb temperature reaches 35°C, increase the dry bulb temperature by 1.5°C at a rate of 1°C / 2h, lower the wet bulb temperature to 34°C, and bake at a steady temperature for 11 hours when the dry and wet bulb temperatures are 40°C / 34°C, until When the tobacco leaves in the low temperature layer are all yellow and half lodging, and the tobacco leaves in the high temperature layer and the...

Embodiment 3

[0046] A two-fast and one-slow flue-cured tobacco loose leaf baking method of the present invention comprises the following steps:

[0047] (1) Yellowing stage:

[0048] After the kang is installed, turn on the circulation fan and run for 3 hours;

[0049] After ignition, the dry and wet bulb temperature was raised to 34°C for 3 hours, and the temperature was stabilized for 5 hours;

[0050] Then raise the dry bulb temperature to 39°C at a rate of 1°C / h, and when the wet bulb temperature rises to 37°C, bake at a steady temperature for 25 hours until the tobacco leaves in the high temperature layer and the middle temperature layer are all yellow, stabilize the dry bulb temperature and reduce the wet bulb temperature When the temperature reaches 35°C, increase the dry bulb temperature by 1°C at a rate of 1°C / 2h, and reduce the wet bulb temperature to 34°C. When the dry and wet bulb temperatures are 40°C / 34°C, bake at a steady temperature for 12 hours until the temperature is low....

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Abstract

The invention discloses a two-quick-step and one-slow-step loose-leaf curing method for flue-cured tobacco. The method comprises three steps of yellowing, color fixing and stem drying. In the early days of yellowing, the wet-bulb temperature and the wet-and-dry bulb heating speed are lowered to prevent tobacco leaves from excessive dewatering from the start of yellowing to the not completely yellowed state, so that the activity of tobacco leaf tissue cells is improved, the enzyme activity is enhanced, decomposition and transformation of starch, protein and chlorophyll are promoted, tobacco leaf yellowing is promoted and aroma substances are increased; in the later period of yellowing, the curing time is prolonged to promote formation and accumulation of the aroma substances, the oil content of tobacco leaves is increased, accordingly, the quality of preliminarily flue-cured tobacco is improved and golden yellow tobacco is increased; and in the color fixing and stem drying stages, the curing time is shortened to prevent polyphenols from being oxidized into quinones under the action of polyphenol oxidase, accordingly, tobacco leaves are prevented from darkening, loss of the aroma substances is avoided and the production cost is lowered. The two-quick-step and one-slow-step loose-leaf curing method has the characteristics of being high in operability, improving the tobacco leaf quality, shortening the overall curing time and lowering the cost.

Description

technical field [0001] The invention relates to the technical field of tobacco leaf curing, in particular to a two-fast and one-slow curing method for loose leaves of flue-cured tobacco. Background technique [0002] As we all know, baking is a key link in forming the quality of tobacco leaves. Through tobacco leaf curing, the excellent traits formed and accumulated in the field growth process of tobacco leaves are fully revealed and brought into play. It is a crucial technical link in the production of high-quality tobacco leaves, and it is also one of the technical bottlenecks that are difficult to improve the quality and efficiency of flue-cured tobacco production. . [0003] With the development of flue-cured tobacco production, the current tobacco leaf curing needs not only to "dry and yellow" the tobacco leaves, but also to take effective technical measures during the curing process to make the tobacco leaves "fresh, cooked, and fragrant" to improve the quality of tob...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 蒋明贵郑登峰吴道华代昌明黄化刚杨双剑李磊磊申燕陈雪
Owner BIJIE COMPANY OF GUIZHOU TOBACCO
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