A kind of low-nicotine tobacco extract, its preparation method and e-liquid special for heat-not-burn cigarettes

A technology of tobacco extract and nicotine, applied in the field of tobacco, can solve the problem of high nicotine content in tobacco extract, and achieve the effects of improving aroma quality, low temperature and retaining the original aroma of tobacco

Active Publication Date: 2022-02-11
贵州黄果树金叶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to propose a method for preparing a low-nicotine tobacco extract, aiming at the problem that the nicotine content of the tobacco extract in the current low-temperature non-burning cigarette formula is relatively high. Production, the tobacco extract prepared by this method still has obvious tobacco aroma while having a low nicotine content

Method used

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  • A kind of low-nicotine tobacco extract, its preparation method and e-liquid special for heat-not-burn cigarettes
  • A kind of low-nicotine tobacco extract, its preparation method and e-liquid special for heat-not-burn cigarettes

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Embodiment 1

[0031] This embodiment discloses a method for preparing a low-nicotine tobacco extract from tobacco raw materials in Bijie, Guizhou. The specific steps are as follows:

[0032] (1) Extraction: after pulverizing the tobacco raw material with a mass of m, pass through a 40-mesh sieve, mix it with an ethanol solution (70%, v / v) with a mass of 7 m, and extract at 50° C. for 1 h; after extraction, solid-liquid separation, The liquid was centrifuged for 5 minutes at a rotational speed of 2500 rpm to obtain a tobacco extract.

[0033] (2) Concentration: the tobacco extract is concentrated under reduced pressure at 60° C. to a solid content of 60%, to obtain tobacco ethanol extract, and recover ethanol.

[0034] (3) Alkaline extraction: add 2n ammonia water (concentration: 25%) to the tobacco ethanol extract with a mass n, stir for 5 min; then mix with 3 n petroleum ether, and extract for 1 h.

[0035] (4) Purification: After extraction, liquid separation is obtained to obtain an org...

Embodiment 2

[0038] This embodiment discloses a method for preparing a low-nicotine tobacco extract from tobacco raw materials in Zunyi, Guizhou. The specific steps are as follows:

[0039] (1) Extraction: crush the tobacco raw material with a mass of m, pass through a 60-mesh sieve, mix it with an ethanol solution (75%, v / v) with a mass of 8 m, and extract at 60°C for 1.5 h; after extraction, solid-liquid separation , and the liquid was centrifuged for 10 min under the condition of rotating speed of 3000 rpm to obtain tobacco extract.

[0040] (2) Concentration: the tobacco extract is concentrated under reduced pressure to a solid content of 65% at 65° C. to obtain tobacco ethanol extract, and recover ethanol.

[0041] (3) Alkalinization extraction: add 1.5n of ammonia water (concentration: 26%) to the tobacco ethanol extract with a mass of n, stir for 5 minutes; then mix with ethyl acetate with a mass of 3n, and extract for 2 hours.

[0042] (4) Purification: After extraction, liquid se...

Embodiment 3

[0045] This embodiment discloses a method for preparing a low-nicotine tobacco extract from tobacco raw materials in Yuxi, Yunnan. The specific steps are as follows:

[0046] (1) Extraction: crush the tobacco raw material with a mass of m, pass it through a 40-mesh sieve, mix it with an ethanol solution (75%, v / v) with a mass of 10 m, and extract at 55°C for 1.5 h; after extraction, solid-liquid separation , and the liquid was centrifuged for 5 minutes under the condition of rotating speed of 3500 rpm to obtain tobacco extract.

[0047](2) Concentration: the tobacco extract is concentrated under reduced pressure at 65° C. to a solid content of 55%, to obtain tobacco ethanol extract, and recover ethanol.

[0048] (3) Alkalized extraction: add 1.5n ammonia water (concentration: 28%) to the tobacco ethanol extract with a mass n, and stir for 10 minutes; then mix with n-hexane with a mass of 2.5n, and extract for 1.5h.

[0049] (4) Purification: After extraction, liquid separatio...

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Abstract

The invention provides a low-nicotine tobacco extract, its preparation method and e-liquid special for heat-not-burn cigarettes. The preparation method of the low-nicotine tobacco extract comprises the following steps: Extraction: using ethanol solution to leach tobacco raw materials, extracting After solid-liquid separation to obtain the extract, centrifuge the extract to obtain tobacco extract; Concentration: Concentrate the tobacco extract under reduced pressure to obtain tobacco alcohol extract; Alkaline extraction: Add ammonia water to the tobacco alcohol extract, stir evenly , mixed with an organic solvent for extraction; purification: separation after extraction to obtain an organic phase and an aqueous phase; mixing the aqueous phase with an ethanol solution, stirring evenly, and concentrating under reduced pressure to obtain a low-nicotine tobacco extract. The preparation method of the invention has simple technological requirements, high yield and is suitable for mass production. The tobacco extract prepared by the method has a low nicotine content and still has obvious tobacco aroma, and can be used in the preparation of 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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24B15/24A24B15/167A24B15/26
CPCA24B15/243A24B15/167A24B15/26
Inventor 瞿方龙小洲高占甫龙李进李汶琪秦缘欧明毅
Owner 贵州黄果树金叶科技有限公司
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