Low-nicotine tobacco extract and preparation method thereof and tobacco tar special for heat-not-burn cigarette

Abstract

The invention provides a low-nicotine tobacco extract and a preparation method thereof and tobacco tar special for a heat-not-burn cigarette. The preparation method of the low-nicotine tobacco extractcomprises the following steps of: extraction, specifically, adopting an ethanol solution for conducting digestion on tobacco raw materials, performing solid-liquid separation after digestion to obtain leach liquor, and centrifuging the leach liquor to obtain a tobacco extracting solution; concentrating: concentrating the tobacco extracting solution under reduced pressure to obtain a tobacco alcohol extract; alkalization extraction: adding ammonia water into the tobacco alcohol extract, performing uniform stirring, and mixing with an organic solvent for extraction; purification: separating liquid after extraction to obtain an organic phase and a water phase, and mixing the water phase with an ethanol solution, performing uniform stirring, and performing concentrating under reduced pressureto obtain the low-nicotine tobacco extract. The preparation method disclosed by the invention is simple in process requirement, high in yield and suitable for large-batch production. The tobacco extract prepared by adopting the method still has obvious tobacco fragrance while having lower nicotine content, and can be used for preparing heat-not-burn cigarettes.

Description

technical field

[0001] The invention relates to tobacco technology, in particular to a low-nicotine tobacco extract, a preparation method thereof and special e-liquid for heat-not-burn cigarettes. Background technique

[0002] Low-temperature heat-not-burn cigarettes satisfy the experience of smoking traditional cigarettes by heating tobacco in the form of shredded tobacco. Since the content of harmful substances in the smoke is controllable and lower than ordinary cigarettes, the harm of tobacco products to the human body is greatly reduced, so more and more market attention.

[0003] The styles of heat-not-burn cigarettes currently on the market mainly include tobacco flavor, mint flavor and fruit flavor. E-liquid is composed of a mixture of various tobacco aroma extracts, which can enhance the original aroma of tobacco and significantly increase the aroma and concentration of non-burning cigarettes. It is an important additive that constitutes the style of cigarette bran...

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