Preparation of low-temperature fraction capable of improving strength and application of low-temperature fraction in heated cigarettes

Abstract

The invention belongs to the technical field of heated cigarettes, and particularly relates to a preparation method of a low-temperature fraction capable of improving strength and application of the low-temperature fraction in heated cigarettes. The preparation method comprises the following steps: preparing raw materials including 65 wt% of Dali burley tobacco leaves, 25 wt% of Hubei Jianshi county burley tobacco leaves and 10 wt% of Brazil burley tobacco leaves; crushing the raw materials, adding 8 times of 65wt% ethanol, carrying out ultrasonic extraction at 55 DEG C for 55 minutes, and collecting a first filtrate; extracting the residue part again by adopting the same method, collecting a second extracting solution, combining filtrates, and concentrating to obtain a primary extract; and filtering the primary extract by using an 3-5-thousand ultrafiltration membrane under the conditions of room temperature and operation pressure of 0.16-0.18 MPa to obtain a low-temperature fraction. The low-temperature fraction is added into the cigarette for smoking, so that the irritation of smoke is reduced, the smoke concentration is increased, and the smoke strength is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of heated cigarettes, and in particular relates to the preparation of a low-temperature fraction capable of increasing strength and its application in heated cigarettes. Background technique [0002] According to existing literature reports, more than 6,000 chemical components have been identified in traditional cigarette gas. It can be decomposed or combined under certain conditions, so it can be seen that reducing the heating or combustion temperature can significantly reduce the release of harmful components in the smoke. In addition, the sidestream smoke generated after traditional cigarettes are lit (mainly the smoke escaping from the smoldering end of the cigarette during the puffing interval) will cause non-people to smoke passively and arouse disgust among non-smoking people. [0003] Smokers desire to smoke less harmful cigarettes, and non-smokers want to avoid the harm of passive smoking. The abov...

AI Technical Summary

Problems solved by technology

At present, tobacco extracts have been widely used in traditional cigarettes, but due to differences in raw materials and limitations of extraction techniques, analysis methods and use environments, most products are difficult to directly transplant into heated cigarettes to exert their efficacy

At present, the commonly used products obtained by ordinary solvent extraction method contain some substances that are not suitable for cigarette smoking, which will increase the discomfort of smoking, roughness and dryness

In addition, there are disadvantages such as large amount of solvent used, low efficiency, poor reproducibility, and easy loss of volatile components. The most important thing is that conventional extraction and separation methods will damage heat-sensitive aroma substances and cannot retain the aroma of tobacco itself. Element

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