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Two-stage type bulk curing process for flue-cured tobaccos

A technology of intensive roasting and roasting process, applied in the field of flue-cured tobacco roasting, can solve the problems of high miscellaneous gas and irritation, insufficient aroma of tobacco leaves, long drying period of gluten, etc. Tobacco leaves, the effect of reducing water loss

Inactive Publication Date: 2015-12-02
GUIZHOU TOBACCO SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above situation, the purpose of the present invention is to solve the problems of insufficient aroma, miscellaneous gas and irritation of the cured tobacco leaves caused by the long drying period and high temperature of the existing flue-cured tobacco intensive curing process, and at the same time reduce the consumption of baking. Reduce energy costs, reduce the cost of tobacco leaf logistics, warehousing and threshing and re-baking, improve the quality of tobacco leaves and industrial availability, and adopt a two-stage intensive curing technology for flue-cured tobacco that improves quality and efficiency

Method used

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  • Two-stage type bulk curing process for flue-cured tobaccos
  • Two-stage type bulk curing process for flue-cured tobaccos
  • Two-stage type bulk curing process for flue-cured tobaccos

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Application of two-stage intensive roasting process of flue-cured tobacco Nanjiang No. 3 variety

[0034] In 2014, the central tobacco leaves of the flue-cured tobacco Nanjiang No. 3 variety planted in Fuquan City, Guizhou Province were selected, and the base 15 cm of the harvested tobacco leaves were removed, and the tobacco leaves were loaded into the barn by loose leaf cuttings, and the flue-cured tobacco of the present invention was used for two-stage intensive drying. Baking process for baking.

[0035] Yellowing and dehydration stage:

[0036]Step 1: After the tobacco leaves are loaded into the barn, close the doors, windows and air inlets, raise the dry bulb temperature to 35°C at a heating rate of 0.5°C / h, and the wet bulb temperature to 34°C, and bake at a steady temperature for 8 hours;

[0037] Step 2: Raise the dry bulb temperature to 39°C and the wet bulb temperature to 38°C at a heating rate of 0.5°C / h, and bake at a steady temperature for 20 h...

Embodiment 2

[0050] Example 2: Application of two-stage intensive curing process of flue-cured tobacco Bina No. 1 variety

[0051] In 2015, the central tobacco leaves of the flue-cured tobacco Bina No. 1 variety planted in Fuquan City, Guizhou Province were selected, and the bases of 10cm, 12cm and 15cm of the harvested tobacco leaves were removed, and the tobacco leaves were loaded into the barn by stacking loose leaves, and the flue-cured tobacco of the present invention was used. Two-stage intensive baking process for baking.

[0052] Yellowing and dehydration stage:

[0053] Step 1: After the tobacco leaves are loaded into the barn, close the doors, windows and air inlets, raise the dry bulb temperature to 36°C at a heating rate of 0.5°C / h, and the wet bulb temperature to 35°C, and bake at a steady temperature for 6 hours;

[0054] Step 2: Raise the dry bulb temperature to 38°C and the wet bulb temperature to 37°C at a heating rate of 0.5°C / h, and bake at a steady temperature for 18 h...

example 3

[0064] Example 3: Necessity analysis of removing the 10-15cm base of fresh tobacco leaves for baking

[0065] Remove the base of the fresh tobacco leaves by 10-15 cm, which is equivalent to cutting the base of the cured tobacco leaves (head part) to a length of 10-12 cm. Within this length range, this part of the leaf base has the following characteristics:

[0066] 1. According to the cut analysis of multiple varieties planted in a large area in Guizhou Province, the leaf content of the most reaches 5%, and the least is less than 1%;

[0067] 2. According to the length of the tobacco leaves, the weight of the cut leaf base accounts for about 15-20% of the weight of the whole handful (sheet) of tobacco leaves;

[0068] 3. For the handle tobacco, the impurity content in the leaf base (handle head) is very high, accounting for more than 50% of the total amount of impurity in the entire tobacco leaf;

[0069] 4. The quality of the tobacco leaves at this part is relatively poor i...

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Abstract

The invention relates to a two-stage type bulk curing process for flue-cured tobaccos. A two-stage type curing process is adopted and comprises a yellowing stage and a color fixation and drying stage respectively; tobacco leaves are dried by using dry-bulb temperature of a color fixation later period; according to the curing process, 10-15cm of bases of the leaves are needed to be removed and then the tobacco leaves are filled and cured. The two-stage type bulk curing process for the flue-cured tobaccos has the following advantages that (1) the operability of the two-stage type curing process is stronger; (2) the process is more optimized and yellowing and color fixation of the tobacco leaves are facilitated; (3) stems are dried at low temperature, and the energy is saved; (4) the labor is saved and the cost is reduced; (5) the availability of the tobacco leaves is improved. According to the method provided by the invention, inapplicable leaf bases are treated before an agricultural curing link so that physical distribution cost and re-curing link cost are reduced and the availability of the tobacco leaves is more effectively improved.

Description

technical field [0001] The invention relates to a two-stage intensive curing process for flue-cured tobacco, which belongs to the technical field of flue-cured tobacco curing. Background technique [0002] At present, there are many technical standards and patents for intensive curing technology in China, such as the two local standards DB52 / T666~2010 and technical regulations DB52 / T665~2010 for flue-cured tobacco loose-leaf curing technology; "Procedure" YC / T457—2013; Patent No. 200710077916.7 "Scattered Leaf Intensive Baking Room Baking Process" belongs to the low-humidity baking method; Hanging leaf baking; Patent No. 201210327964.8 "Three Steps and Seven Steps Method" for Tobacco Loose Leaf Roasting divides the flue-cured tobacco process into three stages and seven steps; ", Patent No. 201210418875.4 "A Ten-step Operation Process for Accumulating Fragrance by Scattering Leaves on the Tobacco Leaf Curing Controller", etc. [0003] These patents and technical standards h...

Claims

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Application Information

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IPC IPC(8): A24B3/10A24B1/02
Inventor 涂永高韦克苏谢已书潘文杰史海鹰李国彬
Owner GUIZHOU TOBACCO SCI RES INST
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