A method for extracting tobacco aroma components by water jet crushing and centrifugal membrane decompression and low temperature distillation

Abstract

The invention relates to a method for extracting tobacco aroma components by water jet crushing and centrifugal membrane decompression and low-temperature distillation, comprising the following steps: S1, adding raw materials for extracting tobacco aroma components after pulverization into a stirring tank, adding water and stirring, and sending to the centrifuge; S2, transport the separated heavy matter to the water jet mill for water jet crushing; S3, transport the light matter solution obtained in the step S2 to the multi-layer disc centrifugal and gravity film forming and differential The feeding port at the upper end of the low-temperature evaporating device for rapid decompression, the low-temperature evaporating device includes rotating conical discs and fixed conical discs arranged coaxially and alternately stacked, wherein the rotating conical discs are fixed on the central axis for rotation Movement; S4. The gas-phase aroma source substance is sucked into the condenser together with the steam, and is condensed into a liquid together with the water vapor; then the aroma source substance is separated from the condensed water by a separator to obtain liquid tobacco aroma components. The invention realizes the high-quality tobacco aroma components that are pulverized and distilled and extracted by a purely physical method.

Description

technical field [0001] The invention relates to the technical field of cigarette production, and more specifically relates to a method for extracting tobacco aroma components by water jet pulverization and centrifugal membrane decompression and low-temperature distillation. Background technique [0002] With the gradual increase of people's attention to smoking and health issues, as well as the continuous increase in the ban on smoking in public places, the tobacco industry has begun to attach great importance to non-combustible low-temperature cigarettes, electronic cigarettes and buccal cigarettes while implementing tar reduction and harm reduction projects. Tobacco and other new tobacco products research and development, and carry it out as a strategic, overall and long-term major issue related to the sustainable development of the industry. [0003] The tar reduction and harm reduction project has continuously reduced the tar content in cigarettes, and the aroma componen...

AI Technical Summary

Problems solved by technology

[0006] In order to achieve the purpose of crushing tobacco plants, various known methods can be used in the art: as, biological treatment method, the cell wall of tobacco is degraded by biological enzymes or bacteria, the problem that may exist is that single use of biological enzymes often If the treatment is not complete, the cell wall can only be partially degraded; the treatment time with bacteria alone is longer, the cell wall will be completely degraded and the metabolites of the bacteria may affect the quality of the fragrance source substance, and the purpose will not be achieved if the time is short

Among them, ultrasonic crushing is to use the cavitation erosion effect and fragmentation effect generated by high-frequency ultrasonic waves in the liquid to break the cell wall. The possible problem is that the power of the ultrasonic transducer is limited and the processing capacity is not large enough; microwave wall breaking is the use of microwave When the plant medium in the field absorbs microwave energy, the molecular polarization in the cell produces dipole ultra-high frequency vibration and friction to generate heat. When the liquid phase absorbs enough latent heat and vaporizes, it breaks through the cell wall and releases steam to achieve the purpose of crushing. The possible problem is that the aroma source substances of tobacco plants deteriorate due to overheating; steam explosion uses steam with a certain pressure to enter the plant cells, and the steam is released due to sudden pressure release to cause crushing. The possible problem is still overheating

The physical treatment method has high treatment intensity, and the loss of aroma components is relatively large

[0008] Another example is the chemical treatment method, which mainly uses dilute acid, alkali, ozone, organic solvent and oxidation to reduce or dissolve the strength of the cell wall. The possible problem is that these chemical components are difficult to deal with in the later stage.

Instead, it is through the degradation of the above-mentioned biological enzymes or bacteria, or the physical wall breaking of ultrasonic waves, microwaves, and steam explosions, or through the softening and digestion of acid-base solvents to make pulverization, which also causes problems caused by the corresponding pulverization process, such as The controllability is weak, the wall breaking rate is not high, or the temperature is too high to cause deterioration, etc.

[0015] In this field, in the aspect of controlling the evaporation temperature of the vapor phase conversion of the solution containing the tobacco aroma source substance, in the known methods as mentioned above, measures including steam distillation, normal temperature distillation and vacuum distillation have been taken, but The evaporation principle of "the same substance has different saturated vapor pressure at different temperatures, and increases with the increase of temperature, the higher the saturated vapor pressure value, the more favorable it is for the liquid phase to change into the gas phase". Tobacco aroma source substances "deterioration caused by excessive temperature" is mostly a conventional process balance, and there is a relative lack of principle breakthroughs in methods and devices.

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