Method for extracting basic smoke smell raw material of tobacco source for electronic cigarettes

An extraction method and technology of e-cigarette liquid, which is applied in the field of tobacco, can solve the problems of lack of extract aroma, ineffective extraction, and low extraction yield, so as to achieve rich tobacco aroma, good consistency, and solve burnt smell Effect

Inactive Publication Date: 2017-11-07
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent (CN104585859A) chooses to use water, ethanol or ethanol aqueous solution as the extraction solvent. Although it is considered that most of the aroma substances in tobacco can be dissolved in ethanol, it does not consider that some of the aroma substances are insoluble in this system, so that they cannot be effectively extracted. come out, so that the extract fragrance is missing and the yield is reduced (see Example 1 for details)
The patent (CN104585861A) selects n-hexane, cyclohexane, dichloromethane, petroleum ether, ethyl acetate, dichloroethane or their solvent mixture as the solvent system, which can only extract the aroma substances with weak to weak polarity , ignoring the fact that most of the aroma substances in tobacco are soluble in ethanol and insoluble in less polar solvents, which makes the aroma more monotonous, the tobacco aroma is weak, and the extraction yield is lower

Method used

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  • Method for extracting basic smoke smell raw material of tobacco source for electronic cigarettes
  • Method for extracting basic smoke smell raw material of tobacco source for electronic cigarettes
  • Method for extracting basic smoke smell raw material of tobacco source for electronic cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The essence of this example is to compare the difference in the crude extraction solvent system between the scheme described in the present invention and the scheme described in the reference document (CN104585859A), resulting in differences in the obtained products. The specific operation is as follows:

[0051] Each weighs 40g of the same middle tobacco leaf group 20 mesh powder 40g in two 500mL round bottom flasks, and adds 200g of absolute ethanol to the sample numbered 20160405-1 (this is the scheme of the reference (CN104585859A)), and the number is A composite solvent composed of 200 g of absolute ethanol, chloroform, and petroleum ether (ratio 65:20:15, m / m) was added to the sample of 20160405-2 (ie, the scheme described in the present invention). Put the two sample vials into a magnetic stirring water bath at the same time, reflux and stir at 50°C for 3h, release the extraction solvent, concentrate to dryness under reduced pressure on a rotary evaporator at 55°...

Embodiment 2

[0058] Take by weighing the upper part tobacco leaf group 40 order powder 50g that mixes in 500mL round bottom flask, add the composite solvent that 300g dehydrated alcohol, ethyl acetate, chloroform, No. 6 solvent oils form (ratio is 55:20:15: 10, m / m), put it in a magnetic stirring water bath at 52°C for reflux and stir for 2.5h, filter out the extraction solvent, and concentrate under reduced pressure on a rotary evaporator at 60°C with the strongest negative pressure of -0.092Mpa. Dry. The recovered solvent was added back to the round-bottomed flask filled with tobacco raw materials, refluxed and stirred at 55°C for 2 hours, then filtered out the extraction solvent, and reduced to -0.095Mp on a rotary evaporator at 45°C and the strongest negative pressure was -0.095Mp. Concentrate to dryness under pressure. Combine the dry matter after twice concentration, add 80 g of organic solvent system A (ethyl acetate:dichloromethane=2:8, m / m) and stir as hard as possible to obtain ...

Embodiment 3

[0061] Weigh 100g of 20 mesh powder of flue-cured tobacco C2F sheet tobacco produced in Yuxi, Yunnan Province in 2013 and put it in a 1000mL round bottom flask, add 500g of absolute ethanol, dichloromethane, 30-60°C boiling range petroleum ether to form a composite solvent (the ratio is 60:25 :15, m / m), after soaking for 30min, airtight decompression (-0.03MPa) maintained for 30min, then placed in a magnetic stirring water bath at 38°C for reflux and stirring for extraction for 2h, filtered out the extraction solvent, and placed on a rotary evaporator for 37 °C and the strongest negative pressure is -0.092Mpa and concentrated to dryness under reduced pressure. The recovered solvent was added back to the round-bottomed flask filled with tobacco raw materials, refluxed and stirred at 38°C for 1.5 hours, then filtered out the extraction solvent, and placed on a rotary evaporator at 37°C with the strongest negative pressure of -0.09Mp Concentrate to dryness under reduced pressure....

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Abstract

The invention discloses a method for extracting basic smoke smell raw material of tobacco source for electronic cigarettes. The raw material can solve the problems that the suction frequency, the amount of smoke and the state of the smoke of electronic cigarettes are affected since the traditional tobacco extract is used in electronic cigarettes. The method is specific by reducing sugar content in the tobacco juice of cigarettes with tobacco extract to 1% and below and removing insoluble substances in the tobacco juice. The extracting method comprises following steps: (1) extracting as many aroma compounds as possible from tobacco raw material by wet extrusion or solvent immersion to obtain the initial product of tobacco source basic smoke smell raw material; (2) extraction or dissolution of the obtained initial product of tobacco source basic smoke smell raw material using a solvent (system) that is (almost) insoluble for sugar but as soluble as possible for flavor substances; the extraction or solution is concentrated and then dissolved in another solvent ( system ) to remove the insoluble matter to obtain the tobacco source basic smoke smell raw material for the electronic cigarettes.

Description

technical field [0001] The invention belongs to the technical field of tobacco, and in particular relates to a method for extracting basic tobacco flavor raw materials used in electronic cigarettes. Background technique [0002] The electronic cigarettes mentioned in the present invention, also known as electronic nicotine delivery systems (ENDS), belong to the category of new tobacco products. The official definition of an ENDS by the World Health Organization (WHO technical report series 955, P4-5) is: A consumer product capable of delivering nicotine to the lungs. Electronic cigarettes mainly use battery power to heat the resistance wire to deliver aroma components and satisfying substances. [0003] What is stored in the electronic cigarette liquid storage chamber is electronic cigarette liquid (also known as smoke liquid). E-liquid is the core and key to the quality of electronic cigarettes. Most of the commercially available e-liquids at home and abroad are made of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24F47/00A24B15/24
CPCA24B15/24A24F47/00
Inventor 彭新辉文雅萍龚淑果曹继红杨丁秀彭雨旸
Owner CHINA TOBACCO HUNAN INDAL CORP
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