A method of extracting nicotine from tobacco

A tobacco and nicotine technology, applied in the field of electronic cigarettes, can solve the problems of large processing equipment and low efficiency, and achieve the effects of improving extraction rate, reducing production cost and high safety

Inactive Publication Date: 2019-03-26
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • A method of extracting nicotine from tobacco

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Embodiment 1

[0025] Take 50g of Burley tobacco powder, add it to a mixed solution consisting of 200ml of 15% sodium bicarbonate solution and 200ml of 5% sodium hydroxide solution, heat to 70°C and reflux at this temperature for 2h , and then filtered to get the filtrate, the filtrate was extracted twice with 450ml of n-hexane, the organic phase extracts were combined, and the organic phase extracts were concentrated at 25°C to obtain a yellow oily liquid, which was nicotine in Burley tobacco.

Embodiment 2

[0027] Take 30g of flue-cured tobacco shreds, add it to a mixed solution consisting of 130ml of 14% ammonium bicarbonate solution and 120ml of 4.8% ammonia water, heat to 73°C and reflux at this temperature for 1.9h, then filter to get the filtrate , the filtrate was extracted three times with 250ml of ethyl acetate, the organic phase extracts were combined, and the organic phase extracts were concentrated at 28°C to obtain a yellow oily liquid, namely nicotine in flue-cured tobacco.

Embodiment 3

[0029] Take 60g of sun-cured tobacco powder, add it to a mixed solution consisting of 280ml of potassium bicarbonate solution with a mass fraction of 13% and 220ml of a sodium hydroxide solution with a mass fraction of 4.6%, heat to 74°C and reflux at this temperature for 1.8h , then filtered to get the filtrate, the filtrate was extracted three times with an organic solvent composed of 400ml n-hexane and 80ml ethyl acetate, combined the organic phase extracts, concentrated the organic phase extracts at 29°C to obtain a yellow oily liquid, which was obtained Nicotine in cigarettes.

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Abstract

The invention provides a method for extracting nicotine from tobacco. The method comprises the following steps: mixing a tobacco raw material with carbonate or bicarbonate and an alkaline solution ina certain proportion at 70-90 DEG C and enabling reflux for 1-2 hours, carrying out filtering to obtain a filtrate, conducting extraction twice to three times by an organic solvent, separating an extracting solution from a raffinate, combining the extracting solution, concentrating an organic phase extract at 25-50 DEG C to obtain a yellow oily liquid, and thus obtaining nicotine in tobacco. According to the method for extracting nicotine from tobacco, the nicotine yield is 96.3%, the purity is 82.4%, the aroma of cigarettes is reserved while stimulation to the throat is reduced and the comfort is improved, the nicotine has the original aroma of tobaccos and provides good satisfaction, the requirement of consumers for smoking electronic cigarettes is further met, the sensory evaluation comprehensive index is excellent, and the economic value of the tobacco industry can be improved. The method has great popularization prospects.

Description

Technical field [0001] The invention belongs to the technical field of electronic cigarettes, and specifically relates to a method for extracting nicotine from tobacco. Background technique [0002] Nicotine, commonly known as nicotine, is an alkaloid found in plants of the Solanaceae family (genus Solanum) and is also an important component of tobacco. In recent years, as the sales of traditional tobacco products have stagnated or even declined in some developed countries, and many countries have increasingly banned smoking in public places, new tobacco products such as low-temperature cigarettes, smokeless tobacco products, and e-cigarettes are rapidly emerging. , Philip Morris International, British American Tobacco, Japan Tobacco and other multinational tobacco companies are also actively developing and promoting new tobacco products from a strategic perspective. An electronic cigarette looks similar to an ordinary cigarette. It is a device that vaporizes nicotine solut...

Claims

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Application Information

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IPC IPC(8): A24B15/24
CPCA24B15/243
Inventor 赵国玲代远刚尹新强龚淑果黄建国彭新辉文雅萍郭小义
Owner CHINA TOBACCO HUNAN INDAL CORP
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