Subcritical extraction process for keeping shape, reducing harm and reducing tar of finished tobacco leaves

Abstract

The invention relates to an extraction process for subcritical fluid. Finished tobacco leaves are extracted by using the subcritical fluid as an extraction solvent, so that partial nicotine and tar matrix in the tobacco leaves are extracted into the extraction solvent; and the solvent is separated from the tobacco leaves, so that the shape of the finished tobacco leaves is kept, the harm of the finished tobacco leaves is reduced and the tar of the finished tobacco leaves is reduced. After the finished tobacco leaves are subjected to shape keeping, harm reduction and tar reduction treatment, the appearance shape of the tobacco leaves is kept well, and meanwhile, the nicotine content and the tar matrix content of the tobacco leaves are reduced; cigarettes prepared by using the tobacco leaves as a raw material generate little tar and nicotine during smoking so as to meet the requirements of reducing the harm and reducing the tar in the industry; the components such as the nicotine, the tar matrix and the like separated from the solvent can be used as raw materials for producing other products; the extraction solvent can be recycled; and the process has good development prospect.

Description

Subcritical extraction process for shape preservation, harm reduction and coke reduction of finished tobacco leaves Technical field The present invention relates to a subcritical fluid extraction process. Specifically, the subcritical fluid is used as a solvent to extract finished tobacco leaves, so as to reduce the content of harmful components such as nicotine and tar matrix in the tobacco leaves without destroying the shape integrity of the tobacco leaves. The subcritical extraction process. Background technique At present, the tobacco industry is facing new situations and challenges. With the improvement of people's living standards, the impact of smoking on people's health has attracted more and more attention. Industry insiders pointed out that low-tar blended cigarettes are a worldwide trend in cigarette products, while Chinese cigarettes are precisely those with higher tar content and a large proportion of flue-cured cigarettes. This is a huge obstacle for domestic ci...

AI Technical Summary

Problems solved by technology

Harmful components such as nicotine and tar matrix in tobacco leaves are very harmful to the human body, but there is currently no good way to reduce harmful components such as nicotine and tar matrix in tobacco leaves. The usual method is to use filters or compound tobacco leaves A method to filter smoke or reduce the human body's inhalation of smoke produced by tobacco leaves