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Tobacco loose leaf curing method

A curing method and technology of tobacco leaves, which are applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of reducing the quality and benefit of tobacco leaves after curing, and the degree of greening and yellowing of tobacco leaves is not enough, so as to prolong life, maintain a living state, The effect of preventing the deterioration of tobacco leaves

Inactive Publication Date: 2014-02-26
GUIZHOU TOBACCO SCI RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented technology relates to decreasing harmful emissions from burning tobaccos by controllably increasing their temperatures while also promoting proper dye fixing and conversion between different phases (green or red). These techniques help preserve healthy crops' growth and improve overall yield.

Problems solved by technology

This patented describes different methods used to improve the properties or characteristics of tofu lamina consisting primarily of loosely bundled tea leaves. However, current processes have limitations related to improving these qualities and reducing costs associated with manufacturers.

Method used

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  • Tobacco loose leaf curing method

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Take the mature flue-cured tobacco from Fuquan flue-cured tobacco base and put it into the oven for baking. The baking is divided into four periods:

[0027](1) Early and middle period of yellowing: After the barn is ignited, the temperature rises to 34.0°C at a rate of 1°C / h, the humidity is controlled at 33.0°C, and the temperature is stabilized for 20-25 hours. The specific time is until the tobacco leaves in the observation layer turn yellow for 4-4 60%; then, the temperature was raised to 38.0°C at a rate of 1°C / h, the humidity was 34.0°C, and the temperature was stabilized for 15 to 25 hours. The specific time was until the tobacco leaves in the observation layer turned yellow by 80% to 90%;

[0028] (2) In the middle and later stage of yellowing: raise the temperature to 40.0°C at a rate of 1°C / 2h, and the humidity is 32.0°C, and bake at a steady temperature for 10-15 hours. The specific time is until the yellow leaves of the tobacco leaves are observed; The heat...

Embodiment 2

[0032] The mature flue-cured tobacco of Kaiyang Longgang Flue-cured Tobacco Base is baked in an oven. The baking is divided into four periods:

[0033] (1) Early and middle stage of yellowing: After the barn is ignited, the temperature is raised to 35.0°C at a rate of 1°C / h, the humidity is controlled at 35.0°C, and the temperature is stabilized for 25 hours until 50% of the tobacco leaves in the observation layer turn yellow; The heating rate of ℃ / h is increased to 38.0℃, the humidity is 35.0℃, and the temperature is stable for 25 hours, until the tobacco leaves in the observation layer turn 80% to 90% yellow;

[0034] (2) In the middle and late stage of yellowing: raise the temperature to 40.0°C at a rate of 1°C / 2h, with a humidity of 34.0°C, and bake at a steady temperature for 10 hours until the leaves are yellow and veined in the observation layer; then increase the temperature at a rate of 1°C / 2h To 42.0 ℃, humidity 33.0 ℃, stable temperature baking for 15 hours, until t...

Embodiment 3

[0037] Example 3 Take the mature flue-cured tobacco from Fuquan flue-cured tobacco base and put it into the oven for baking. The baking is divided into four periods:

[0038] (1) Early and middle period of yellowing: After the curing barn was ignited, the temperature was raised to 34.0°C at a rate of 1°C / h, the humidity was controlled at 34.0°C, and the temperature was stabilized for 25 hours until 60% of the tobacco leaves in the observation layer turned yellow; The heating rate of ℃ / h is increased to 38.0℃, the humidity is 35.0℃, and the temperature is stable for 25 hours, until the tobacco leaves in the observation layer turn 80% to 90% yellow;

[0039] (2) In the middle and late stage of yellowing: raise the temperature to 40.0°C at a rate of 1°C / 2 h, with a humidity of 34.0°C, and bake at a steady temperature for 15 hours until the leaves are yellow and veined in the observation layer; then the temperature is raised at a rate of 1°C / 2 h The speed was increased to 42.0°C...

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Abstract

The invention relates to a tobacco loose leaf curing method including four phases, namely yellowing early intermediate phase, yellowing later intermediate phase, color fixing phase and stem drying phase. Yellowing by slow curing is performed under low temperature and mid-high humidity in the yellowing early intermediate phase (smaller than 40.0 DEG C); yellowing by slow heating is performed under mid-low humidity in the yellowing later intermediate phase (40.0-42.0 DEG C), and the yellowing time is prolonged properly; color fixing by slow heating is performed under mid-low humidity in the color fixing phase (42.1-55.0 DEG C); fast stem drying is performed under mid-high humidity in the stem drying phase (55.1-70.0 DEG C). The method is applicable to tobacco which matures normally and which matures under drought conditions and also applicable to curing barns with low tobacco loading capacity, low tobacco loading density and poor moisture retention. The method has the advantages that the ratio of green miscellaneous tobacco can be reduced, the grade structure of cured tobacco can be improved, oil content of the tobacco is increased, flavor quality of the tobacco is improved, and the method is applicable to tobacco growing and manufacturing enterprises.

Description

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Claims

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Application Information

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Owner GUIZHOU TOBACCO SCI RES INST
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