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Method for reducing TSNAs content of conditioned tobacco leaves

A tobacco leaf and content technology, which is applied in the direction of preparing tobacco, tobacco, and treating tobacco, to achieve the effects of reducing nitrosation, reducing hazards, and reducing production volume

Active Publication Date: 2021-07-23
HENAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, tobacco leaves need to be stored for several years before industrial application. This process will still produce a large amount of TSNAs, and it is impossible to maintain a special storage environment for a long time.

Method used

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  • Method for reducing TSNAs content of conditioned tobacco leaves
  • Method for reducing TSNAs content of conditioned tobacco leaves

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Pre-treatment: Take 10kg of the prepared flue-cured tobacco and separate the leaves and stems. Cut the tobacco stems into small pieces of about 2cm and put them in warm water at 40°C. After washing for 3 to 5 times, remove and drain, and spread out at room temperature Cooling, the tobacco stem absorbs water and expands naturally;

[0025] 2) Alkali treatment: Put the tobacco stems treated in step 1) into the atomization box, which is a closed structure, with a porous partition in the middle, an atomization nozzle on the upper part, and an exhaust port on the lower part to atomize the liquid After entering the atomizing box from the atomizing nozzle, it can pass through the partition and be discharged from the exhaust port under the suction of the exhaust fan. Tobacco stems are evenly spread on the partition, with a thickness of 1-2cm. After atomizing 0.05% KOH solution, it is passed into the atomization box. During the atomization and infiltration process, the tobacc...

Embodiment 2

[0033] 1) Pre-treatment: Take 10kg of the prepared flue-cured tobacco and separate the leaves and stems. During the separation process, the leaves should not be too broken, and the size of the leaves should be 3-4cm. Use a high-pressure watering can to spray water on the leaves (water temperature is 40°C). The amount of water sprayed is the natural dripping of the leaves, and the leaves are spread and cooled to make the leaves stretch and expand naturally;

[0034] 2) Alkali treatment: put the leaves treated in step 1) into the atomization box, the atomization box is a closed structure, the middle porous partition, the upper part is provided with an atomizing nozzle, and the lower part is provided with an exhaust port, and the atomized liquid can be After entering the atomizing box from the atomizing nozzle, it passes through the partition and is discharged from the exhaust port under the suction of the exhaust fan. The blades are evenly spread on the partition, with a thickne...

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Abstract

The invention belongs to the technical field of tobacco tar reduction and harm reduction, and particularly relates to a method for reducing the TSNAs content of modulated tobacco leaves, namely the modulated tobacco leaves are firstly subjected to alkali liquor treatment and then subjected to ultrasonic treatment and steam treatment. According to the method, alkali liquor treatment is matched with ultrasonic wave and steam heat treatment, so that the content of nicotine and nitrous acid as TSNAs precursors in tobacco leaves and tobacco stems can be effectively reduced, the generation amount of the TSNAs in the tobacco leaves and the release amount during smoking can be reduced for a long time, and the harm of cigarettes to human health is further reduced.

Description

technical field [0001] The invention belongs to the technical field of tobacco tar reduction and harm reduction, and in particular relates to a method for reducing the content of TSNAs in prepared tobacco leaves. Background technique [0002] Tobacco-specific nitrosamines (TSNA) are N-nitroso compounds that only exist in tobacco and tobacco products, mainly including NNN, NNK, NAT, NAB and their derivatives. Human health causes cell canceration, which is the main target of tobacco harm reduction. Tobacco-specific nitrosamines are mainly produced through the action of alkaloids such as nicotine contained in tobacco and nitrates: alkaloids react with nitrates under the action of microorganisms to form cyclic nitrite intermediates, which can be further hydrolyzed into Free ammonia forms TSNAs through nitrosation or direct nitrosation to TSNAs; or nitrite first forms nitrite under the action of microorganisms, and then nitrite and other nitrogen oxides react with alkaloids to f...

Claims

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Application Information

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IPC IPC(8): A24B3/10A24B3/12A24B3/18A24B15/22A24B15/28
CPCA24B3/10A24B3/12A24B3/18A24B15/22A24B15/28Y02P70/50
Inventor 史宏志赵园园冯雨晴李刚周骏秦艳青马雁军刘德水李晶晶张梦玥
Owner HENAN AGRICULTURAL UNIVERSITY
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