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Scattered leaves piled up in a dense barn, filled with smoke, continuously heated up, roasted, fragrant roasted, soft roasting method

A technology of dense curing room and curing method, which is applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of affecting the activity of hydrolytic enzymes, low temperature, and low moisture content of tobacco leaves, so as to improve industrial usability, simplify the curing process, and The effect of improving the roasting quality

Active Publication Date: 2018-06-01
ZUNYI TOBACCO OF GUIZHOU TOBACCO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) The duration of the temperature stabilization stage is too long, generally at 34°C for 10 hours or more, at 38°C for 18 hours or more, at 54°C for 12 hours or more, etc. quality
Therefore, the temperature and humidity displayed by the controller can only represent the baking process conditions of the tobacco leaves in the shed where the main control sensor is placed. The process is suitable, and often the curing process of tobacco leaves in other sheds is not suitable or not suitable, generally because the temperature is low and the relative humidity is high
If the duration of the temperature stabilization period is too long, it is actually not conducive to the quality modulation of tobacco leaves in other sheds. For example, if the temperature stabilization time is too long at 34°C and 38°C, the temperature of tobacco leaves in other sheds is lower, and the activity of enzymes such as hydrolytic enzymes will be reduced. The degradation rate of internal macromolecular substances such as starch, protein, chlorophyll, etc. is relatively slow, which is not conducive to their full or proper degradation. Beyond the temperature and humidity range suitable for the degradation and conversion of macromolecular substances, due to the higher temperature and lower humidity, more free water in the tobacco leaves will be vaporized and discharged, resulting in lower moisture content in the tobacco leaves, and the activity of hydrolytic enzymes will be inhibited, and there will be no It is conducive to the full or proper degradation and transformation of macromolecular substances, and the amount of small molecular substances such as amino acids, monosaccharides and other aroma-generating substances and aroma precursors produced is insufficient, resulting in insufficient aroma of some tobacco leaves after roasting, and the structure is stiff and not loose. , not soft
In addition, although a longer temperature stabilization at 54 °C is beneficial to the production of more aromatizing substances in the tobacco leaves in the shed where the main control sensor is located, but the tobacco leaves in other sheds have lower temperatures and produce less aromatizing substances. Fast, soon passed the temperature stage suitable for the formation of aroma substances
It can be seen that the duration of the stable temperature stage is too long, which is not conducive to the quality modulation of tobacco leaves in other sheds, that is, it cannot ensure that the tobacco leaves on the kang are fragrant, soft and cooked.
[0006] (3) The dry-wet difference in the yellowing stage, especially the early yellowing stage and the mid-yellowing stage, is relatively large. When the dry bulb temperature is 38°C, the wet bulb temperature is about 36°C, and when the dry bulb temperature is 40°C, the wet bulb temperature is At around 37°C, the tobacco leaves will lose more free water, which will affect the activity of hydrolytic enzymes and other enzymes, which is not conducive to the degradation and transformation of macromolecular substances, and is not conducive to the full yellowing of tobacco leaves, which is not conducive to the roasting of tobacco leaves.
[0007] (4) These stepped heating and baking processes cannot meet the needs of all tobacco loading methods for roasting fragrant and soft-cured tobacco leaves

Method used

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  • Scattered leaves piled up in a dense barn, filled with smoke, continuously heated up, roasted, fragrant roasted, soft roasting method
  • Scattered leaves piled up in a dense barn, filled with smoke, continuously heated up, roasted, fragrant roasted, soft roasting method
  • Scattered leaves piled up in a dense barn, filled with smoke, continuously heated up, roasted, fragrant roasted, soft roasting method

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Embodiment 1

[0029] Provides a method of stacking loose leaves in a dense barn for continuous heating and roasting for fragrant roasting and soft roasting, including the following steps:

[0030](1) Pack the cigarettes in the way of completely loose leaf stacking. On the basis of the classification of suitable ripe harvested tobacco leaves and fresh tobacco, the tobacco is classified, appropriate and evenly packed. First place the tobacco grid (air distribution plate) flat on the tobacco rack in the barn, shake the tobacco leaves lightly, and arrange the base of the leaves relatively evenly; To load the tobacco in the same way; each layer of stacked tobacco leaves should be stacked in the same direction, with a slight inclination to the front, and the angle of stacking the smoke is 85-90 degrees. Each layer of tobacco leaves must be evenly filled without leaving any gaps. Smoke is loaded from the front end of the smoke chamber to the rear, and when one grid is filled with tobacco leaves, ...

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Abstract

The invention discloses a curing method with dispersed tobacco leaf-stacking loading type sustained temperature-increasing curing, fragrant curing and soft curing for bulk curing barn. The curing method comprises the following steps of (1) adopting a dispersed tobacco leaf-stacking loading type; (2) setting and executing a dispersed tobacco leaf-stacking loading type sustained temperature-increasing curing, fragrant curing and soft curing technology of the bulk curing barn by a controller of the bulk curing barn, and curing in the air flow ascending type bulk curing barn for the dispersed tobacco leaf-stacking loading type; after yellowing period, color-fixing period and rib drying period, returning moisture, and unloading tobacco leaves. The curing method has the advantages that the curing quality of whole-curing tobacco leaves is ensured; by adopting the technique of moisture maintaining and yellowing, slow color-fixing, slow sustained temperature increasing, and dynamic change of temperature and humidity, the total content of fragrance in the cured tobacco leaves is averagely improved by 9.5%, the number of smooth tobacco leaves is averagely decreased by 38.9%, and the ratio of high-grade tobacco leaves is averagely increased by 13.6%.

Description

technical field [0001] The invention relates to a method for stacking and filling tobacco with loose leaves in a dense curing room and continuously raising the temperature for roasting and roasting, which belongs to the technical field of tobacco leaf roasting. Background technique [0002] Tobacco leaf curing is inseparable from the baking process. The curing process is the specific requirements and control technology for variables such as dry bulb temperature, wet bulb humidity, and curing time during the tobacco leaf curing process. At present, the tobacco leaf curing process applied in the stacking method of loose leaves in dense curing rooms, such as the three-stage curing process and the six-step curing method, all adopt a stepped heating method, that is, there are multiple heating stages and stable temperature stages. Generally, the heating period is shorter and the temperature stabilization period is longer. There are following problems in the practice of tobacco l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B3/10
CPCA24B3/10
Inventor 周为华徐增汉叶江平李红卫朱英华梁正航周郑雄张启钦陈飞飞王茂贤曾理张翔苏祥云李章海刘大双
Owner ZUNYI TOBACCO OF GUIZHOU TOBACCO CORP
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