Preparation method of tobacco leaves of smokeless and fireless cigarette
A technology for tobacco leaves and cigarettes, which is applied in the field of preparation of smokeless and fire-free cigarette leaves, can solve problems such as being difficult for consumers to accept, and achieve the effects of being easy to accept and use, and reducing the risk of fire.
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Embodiment 1
[0017] Weigh 300 g of flue-cured tobacco leaves and place them in a 10-liter container, add 6000 ml of 90% ethanol, place at 25° C., seal and soak for one week. Use filter paper to filter under reduced pressure to remove particulate matter such as soot in the solution. Distilled under reduced pressure at 40°C. After concentration, the first-grade tobacco leaf extract C is obtained. The filtered tobacco leaves were dried under the condition of 25° C., and ethanol was removed to obtain soaked tobacco leaves A.
[0018] The prepared steeped tobacco leaf A is placed in a closed container, and then heated gradually from room temperature to 300°C, and then kept for 30 minutes after rising to 300°C. The volatile gas in the flue gas was volatilized, and the volatile gas was collected through a container connected with 95% ethanol, and was distilled under reduced pressure under the condition of 50°C. Obtain highly volatile secondary tobacco leaf extract D. Then the soaked tobacco l...
Embodiment 2
[0022] Weigh 300 g of air-dried tobacco leaves and place them in a 10-liter container, add 6000 ml of 90% ethanol, place at 25° C., seal and soak for one week. Use filter paper to filter under reduced pressure to remove particulate matter such as soot in the solution. Distilled under reduced pressure at 40°C. After concentration, the first-grade tobacco leaf extract C is obtained. The filtered tobacco leaves were dried at 25° C. to remove ethanol to obtain soaked tobacco leaves A.
[0023] The prepared steeped tobacco leaf A is placed in a closed container, and then the heating is gradually increased from room temperature to 300° C., and then maintained for 25 minutes after rising to 300° C. The volatile gas in the flue gas was volatilized, and the volatile gas was collected through a container connected with 95% ethanol, and was distilled under reduced pressure under the condition of 50°C. Obtain highly volatile secondary tobacco leaf extract D. Then the tobacco leaves ar...
Embodiment 3
[0026] The present invention comprises the following steps:
[0027] (1) Tobacco leaves are sealed and soaked in a ratio of 1:20 by mass ratio tobacco leaves: ethanol, the soaking temperature is 30°C, and the soaking time is 20 days;
[0028] (2) After soaking, ethanol is separated from the tobacco leaves to obtain the soaked tobacco leaves A and the soaking solution. The soaking solution is concentrated under reduced pressure until the relative density is 1.10 to obtain the first-grade tobacco leaf extract C. The mass percentage is used when concentrating 75% ethanol as a solvent; the first-grade tobacco leaf extract C of the gained is some water-soluble alcohols, phenols, ethers, nitriles, ketones, aldehydes, acids, esters, etc. Large volatile and semi-volatile tobacco aroma substances.
[0029] (3) Place the soaked tobacco leaves A at room temperature to dry to remove ethanol, then place the dried soaked tobacco leaves A in an airtight container, gradually raise the temper...
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