CN110959896A - Tobacco shred added with functional fragrant raw material and heating non-combustible cigarette - Google Patents
Tobacco shred added with functional fragrant raw material and heating non-combustible cigarette Download PDFInfo
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- CN110959896A CN110959896A CN201811125729.6A CN201811125729A CN110959896A CN 110959896 A CN110959896 A CN 110959896A CN 201811125729 A CN201811125729 A CN 201811125729A CN 110959896 A CN110959896 A CN 110959896A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/12—Steaming, curing, or flavouring tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
- A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
- A24B15/26—Use of organic solvents for extraction
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Abstract
The invention relates to the field of heating non-combustion cigarettes, in particular to tobacco shreds added with functional flavor raw materials and a heating non-combustion cigarette adopting the tobacco shreds. A tobacco shred added with functional aromatic raw materials is added with tobacco flavor tobacco shred functional aromatic raw materials, and the adding amount of the tobacco flavor tobacco shred functional aromatic raw materials is 5-40%; the functional tobacco shred fragrance raw material is prepared by performing high-pressure low-temperature reaction on tobacco shreds under inert conditions, and then extracting and filtering the tobacco shreds by using a solvent; or immersing the tobacco shreds in a solvent, then performing high-pressure low-temperature reaction under an inert condition, and then extracting and filtering to obtain the tobacco shreds; or soaking the cut tobacco in a solvent for 15-30 s, then carrying out high-pressure low-temperature reaction under an inert condition, and then extracting and filtering the cut tobacco by using the solvent. The high-pressure low-temperature reaction can obtain a reaction product at the temperature of 100-.
Description
Technical Field
The invention relates to the field of heating non-combustion cigarettes, in particular to tobacco shreds added with functional flavor raw materials and a heating non-combustion cigarette adopting the tobacco shreds.
Background
Smoking is harmful to health, second-hand smoke is more harmful, secondary pollution and public hazard are formed, so smoke-free tobacco products need to be researched and developed urgently, and novel tobacco products such as electronic cigarettes, heating non-combustible tobacco products, buccal cigarettes and the like become focus of attention in domestic and foreign industries. The combustion process of tobacco has complex reactions such as thermal cracking, Maillard and the like, and different temperatures and atmospheres have great influence on products. Research shows that the types of aroma components released by tobacco are the most when the tobacco is heated to 600 ℃, however, the smoking process of the novel tobacco forms such as electronic cigarettes and heating non-combustion cigarettes cannot reach the heating temperature, so that the tobacco essential oil extracted by the traditional tobacco processing mode cannot bring corresponding satisfaction to consumers when being applied to the novel tobacco, and the novel tobacco forms such as electronic cigarettes and the like cannot bring obstruction to market and replace the traditional cigarette consumption mode.
The applicant Zhejiang tobacco industry Limited liability company applies for Chinese invention patent (CN201510580910.6) and discloses a method for preparing electronic cigarette tobacco juice from tobacco subjected to dry distillation pyrolysis treatment, which comprises the following steps: weighing tobacco, placing the tobacco into a heating furnace, heating to the temperature of 150-.
Chinese invention patent (CN201510246335.6) discloses an electronic cigarette liquid containing dry distillation spice, which is prepared by uniformly mixing 15-50% of dry distillation spice, 30-60% of glycerol and propylene glycol. Wherein, the dry distillation spice is prepared by dry distillation of tobacco under nitrogen atmosphere and at proper temperature. The dry distillation is to dry distill the tobacco at 200-400 ℃ in nitrogen atmosphere, and the distillate flows into a receiving bottle through tap water condensation and is collected, thus obtaining the condensed dry distillation spice.
Chinese invention patent (CN201610086584.8) discloses an electronic cigarette liquid with traditional cigarette fragrance and a preparation method thereof, which comprises the steps of burning and dry distillation of cut tobacco. The combustion of the tobacco shreds is carried out at the temperature of 800-900 ℃ to obtain fully combusted smoke. The dry distillation of the tobacco shreds is carried out at the temperature of 300-400 ℃ to obtain the dry-distilled smoke. The burning smoke and the smoke of the dry distillation react at the temperature of 300 ℃ and 400 ℃, and are dissolved in organic solvents such as ethyl acetate and the like. And (3) carrying out rotary evaporation on the solvent absorption liquid at the temperature of 27-30 ℃ under the pressure of-0.09 MPa to obtain a brown oily extract, namely the tobacco liquid raw material with the aroma characteristics of the traditional flue-cured tobacco type cigarettes.
The Chinese invention patent (CN201410249421.8) discloses a method for extracting Chinese style flue-cured tobacco flavor type tobacco juice for electronic cigarettes, which comprises the following steps: mixing flue-cured tobacco type tobacco leaves, tobacco shreds or tobacco powder, applying tobacco material liquid or sugar-containing substances to the tobacco leaves, the tobacco shreds or the tobacco powder, performing dry distillation on the substances in the step 2) in temperature sections, and collecting fractions. The method specifically comprises the following steps: 1) 70-100 parts of flue-cured tobacco type tobacco leaves, tobacco shreds or tobacco powder, 1-5 parts of tobacco feed liquid or 1-30 parts of substances containing sugar are filled into a dry distillation tank; 2) heating the retort to 60-120 deg.C, and maintaining the temperature for 0.5-2 h; 3) then raising the temperature to 180-240 ℃, and preserving the temperature for 0.5-2 h; 4) and collecting fractions after the reaction is finished.
The applicant applies for Chinese invention patent (application No. CN201510751974.8, published Japanese 2016.02.24) and discloses a heating non-combustion cigarette device adopting solid cigarette cartridges, a cigarette cartridge fixing component of the device comprises a fixed connecting sleeve, a compression sealing sleeve and a suction connecting head, a cylindrical cavity is arranged in the fixed connecting sleeve and communicated with an air inlet, the cigarette cartridge component is arranged in the cylindrical cavity, fuming substances for heating and suction are arranged in the cigarette cartridge component, the lower end of the cigarette cartridge component is provided with a concave hole matched with a heating rod, the heating rod is inserted in the concave hole, the periphery of the concave hole is provided with an air inlet, the upper end of the cigarette cartridge component is provided with an air outlet, and the air outlet is hermetically isolated from the cylindrical cavity and communicated with an inner ring of the compression sealing sleeve; the suction connector is arranged on the upper part of the fixed connecting sleeve, a suction hole is formed in the suction connector, and the suction assembly is arranged on the suction hole. The device realizes the release of flue gas, and heating element and flue gas form the base member and do not directly contact, need not to clean heating device, has prolonged life. At present, common tobacco shreds can be used as the smoking substances, but the common tobacco shreds can emit gas with the current fragrance only by high-temperature combustion, and the temperature for heating the non-combustion cigarette is not enough, so that a user cannot obtain enough tobacco fragrance and physiological strength.
Disclosure of Invention
In order to overcome the defects of the existing tobacco treatment mode applied to heating non-combustion cigarettes and make up the defects of insufficient fragrance and physiological strength of the existing heating non-combustion cigarettes, the invention provides the tobacco shreds added with functional fragrant raw materials. The second purpose of the invention is to provide a cigarette which is not burnt by heating the cut tobacco.
In order to achieve the first object, the invention adopts the following technical scheme:
a tobacco shred added with functional aromatic raw materials is added with tobacco flavor tobacco shred functional aromatic raw materials, and the adding amount of the tobacco flavor tobacco shred functional aromatic raw materials is 5-40%; the functional tobacco shred fragrance raw material is prepared by performing high-pressure low-temperature reaction on tobacco shreds under inert conditions, and then extracting and filtering the tobacco shreds by using a solvent; or immersing the tobacco shreds in a solvent, then performing high-pressure low-temperature reaction under an inert condition, and then extracting and filtering to obtain the tobacco shreds; or soaking the cut tobacco in a solvent for 15-30 s, then carrying out high-pressure low-temperature reaction under an inert condition, and then extracting and filtering the reaction product by using the solvent to obtain the cut tobacco; the conditions of high pressure and low temperature are 1.0-2.0 MPa, the temperature is 90-140 ℃, and the reaction time is 0.5-5 h; the solvent is one or a mixture of two of glycerol and propylene glycol.
As a further improvement, the conditions of high pressure and low temperature are 1.2-1.80 MPa, the temperature is 100-120 ℃, and the reaction time is 1-3 h.
As a further improvement, the inert condition is nitrogen or inert gas.
As a further improvement, the cut tobacco is one or a mixture of more of flue-cured tobacco cut tobacco, aromatic tobacco cut tobacco, sun-cured yellow tobacco cut tobacco, burley tobacco cut tobacco, middle-flavor cut tobacco, strong-flavor cut tobacco and fen-flavor cut tobacco.
In order to achieve the second object, the invention adopts the following technical scheme:
a heating non-combustion cigarette comprises an electric heating assembly, a cigarette cartridge assembly and a smoking assembly, wherein a smoking raw material is arranged in the cigarette cartridge assembly, and the smoking raw material adopts the tobacco shred.
In the prior art, the dry distillation extract has high temperature, is generally extracted at 350 ℃, and is too heavy in burnt flavor when applied to electronic cigarettes, so that the dry distillation extract cannot be used for electronic cigarette liquid main body fragrance with the herbal fragrance type. The supercritical extract is generally extracted at the temperature of below 50 ℃, and the cigarette smoke generated by the extract is heavy and has a slight residual feeling. The high-pressure low-temperature reaction can obtain 100-plus 200-DEG C reaction products, which are expressed by the fact that the tobacco fragrance is enough, the burnt fragrance is moderate, the gas of the generated smoke is light, the compatibility is good, the requirement of the main body fragrance of the cigarette which is not combusted by heating can be met, in addition, the extraction method uses propylene glycol or glycerol as a solvent, the stability is good, the refrigeration is not needed, the reaction condition is simple, the products in batches have no obvious difference, and the industrial production can be realized.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the functional fragrant raw materials provided by the invention can endow cigarettes with heating non-combustion performance, the equipment for heating non-combustion cigarettes can adopt the equipment disclosed by Chinese invention patent (application number CN201510751974.8, published 2016.02.24), the smoke has obvious tobacco taste characteristics, the fragrance is rich, the taste is comfortable and clean, the strength is moderate, and the sensory quality is greatly improved, so that the market acceptance of the tobacco taste heating non-combustion cigarettes is favorably improved.
2. The functional incense raw material provided by the invention has stable property and strong pertinence.
3. The solvent is selected from one or a mixture of two of glycerol and propylene glycol, so that the compatibility of the solvent and other substances of the cigarette which is not combusted by heating is good, additional treatment is not needed, the use is convenient, and the production process is simple.
Drawings
FIG. 1 is a gas chromatogram of a flue-cured tobacco-type functional flavor raw material of example 1.
FIG. 2 is a gas chromatogram of a raw material of a cigarette-type functional incense of example 2.
FIG. 3 is a gas chromatogram of a functional cigarette raw material of burley tobacco of example 3.
Detailed Description
The invention is further described below with reference to examples of embodiment but without in any way limiting the scope of the invention.
Example 1
Preparation of flue-cured tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of flue-cured tobacco shreds, adding into a reaction kettle with a volume of 500mL, adding 1.5MPa of nitrogen, heating at 100 ℃, electrically stirring, heating for 2 hours (including 1 hour of heating time), cooling with circulating water after the reaction is finished, adding 100mL of propylene glycol, immersing overnight, extracting, and filtering to obtain about 80mL of filtrate.
The formula of the smoking raw material is as follows: 40% of functional incense raw materials and 60% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 2
Preparation of aromatic tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of aromatic tobacco shreds, adding into a reaction kettle with a volume of 500mL, adding 1.5MPa of nitrogen, heating at 100 ℃, electrically stirring, heating for 2 hours (including 1 hour of heating time), cooling with circulating water after the reaction is finished, adding 100mL of propylene glycol, immersing overnight, extracting, and filtering to obtain about 80mL of filtrate.
The formula of the smoking raw material is as follows: 30% of functional incense raw materials and 70% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 3
Preparation of burley tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of burley tobacco shred, adding into a reaction kettle with the volume of 500mL, adding 1.5MPa of nitrogen, heating at 100 ℃, electrically stirring, heating for 2 hours (including 1 hour of heating time), cooling with circulating water after the reaction is finished, adding 100mL of propylene glycol, immersing overnight, extracting, and filtering to obtain about 80mL of filtrate.
The formula of the smoking raw material is as follows: 20% of functional incense raw materials and 80% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 4
Preparation of flue-cured tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shred, shredding by hand, adding into a reaction kettle with a volume of 500mL, adding a solvent for immersion, wherein the volume is about 200mL, adding 1.5MPa of nitrogen, heating at 100 ℃, heating for 2h (including 1h of heating time), cooling with circulating water after the reaction is finished, standing overnight, and filtering to obtain about 120mL of filtrate.
The formula of the smoking raw material is as follows: 15% of functional incense raw materials and 85% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 5
Preparation of aromatic tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shred, shredding by hand, adding into a reaction kettle with a volume of 500mL, adding a solvent for immersion, wherein the volume is about 200mL, adding 1.5MPa of nitrogen, heating at 100 ℃, heating for 2h (including 1h of heating time), cooling with circulating water after the reaction is finished, standing overnight, and filtering to obtain about 120mL of filtrate.
The formula of the smoking raw material is as follows: 10% of functional incense raw materials and 90% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 6
Preparation of burley tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shred, shredding by hand, adding into a reaction kettle with a volume of 500mL, adding a solvent for immersion, wherein the volume is about 200mL, adding 1.5MPa of nitrogen, heating at 100 ℃, heating for 2h (including 1h of heating time), cooling with circulating water after the reaction is finished, standing overnight, and filtering to obtain about 120mL of filtrate.
The formula of the smoking raw material is as follows: 40% of functional incense raw materials and 60% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, clean and comfortable oral cavity and obviously improved sensory quality.
Example 7
Preparation of flue-cured tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shreds, soaking in propylene glycol for about 20s, taking out, adding into a 500mL reaction kettle, adding 1.5MPa nitrogen, heating at 100 deg.C for 2h (including 1h of heating time), cooling with circulating water after reaction, adding solvent, soaking overnight, and filtering to obtain filtrate of about 80-100 mL.
The formula of the smoking raw material is as follows: 35% of functional incense raw materials and 65% of tobacco shreds.
The functional flavor raw materials are put into a cigarette bullet component, and evaluation results show that smoke has obvious tobacco flavor characteristics after the functional flavor raw materials are added, the tobacco has rich flavor, good harmony, full smoke, good aroma quality, no obvious sweet and greasy feeling, small irritation, moderate strength and clean and comfortable oral cavity, and the sensory quality is obviously improved.
Example 8
Preparation of aromatic tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shreds, soaking in propylene glycol for about 20s, taking out, adding into a 500mL reaction kettle, adding 1.5MPa nitrogen, heating at 100 deg.C for 2h (including 1h of heating time), cooling with circulating water after reaction, adding solvent, soaking overnight, and filtering to obtain filtrate of about 80-100 mL.
The formula of the smoking raw material is as follows: 30% of functional incense raw materials and 70% of tobacco shreds.
The functional incense raw materials are put into the cigarette bullet component, and evaluation results show that after the functional incense raw materials are added, the smoke has obvious tobacco taste characteristics, the tobacco has rich fragrance, full smoke, good fragrance quality, no obvious sweet and greasy feeling, moderate strength, slight irritation and clean oral cavity, and the sensory quality is obviously improved.
Example 9
Preparation of burley tobacco type functional incense raw material and application thereof in heating non-burning cigarettes
Weighing 31.5g of tobacco shreds, soaking in propylene glycol for about 20s, taking out, adding into a 500mL reaction kettle, adding 1.5MPa nitrogen, heating at 100 deg.C for 2h (including 1h of heating time), cooling with circulating water after reaction, adding solvent, soaking overnight, and filtering to obtain filtrate of about 80-100 mL.
The formula of the smoking raw material is as follows: 15% of functional incense raw materials and 85% of tobacco shreds.
The functional flavor raw materials are put into a cigarette bullet component, and evaluation results show that after the functional flavor raw materials are added, the smoke has obvious tobacco flavor characteristics, the tobacco has rich flavor, full smoke, slightly reduced harmony, better flavor quality, no obvious sweet and greasy feeling, slightly low strength, clean and comfortable oral cavity and obviously improved sensory quality.
Smoking evaluation was performed on the smoke produced by each method without burning.
The criteria for evaluation are as follows:
the results are as follows:
| fragrance | Tunability | Miscellaneous qi | Stimulation of | Aftertaste | Stiff head | |
| Flue-cured tobacco | 27.0 | 9.0 | 9.0 | 18.0 | 18.0 | 6.0 |
| White rib | 26.0 | 7.0 | 7.0 | 16.0 | 16.0 | 6.5 |
| Perfume | 27.0 | 8.5 | 8.0 | 18.0 | 17.0 | 6.0 |
| Example 7 | 28.5 | 9.5 | 9.2 | 18.0 | 18.0 | 8.5 |
| Example 8 | 28.5 | 9.2 | 9.0 | 18.5 | 18.0 | 9.0 |
| Example 9 | 28.5 | 8.8 | 8.5 | 18.0 | 18.5 | 9.1 |
Claims (5)
1. The tobacco shred added with the functional aromatic raw material is characterized in that the tobacco shred is added with the tobacco flavor tobacco shred functional aromatic raw material, and the adding amount of the tobacco flavor tobacco shred functional aromatic raw material is 5-40%; the functional tobacco shred fragrance raw material is prepared by performing high-pressure low-temperature reaction on tobacco shreds under inert conditions, and then extracting and filtering the tobacco shreds by using a solvent; or immersing the tobacco shreds in a solvent, then performing high-pressure low-temperature reaction under an inert condition, and then extracting and filtering to obtain the tobacco shreds; or soaking the cut tobacco in a solvent for 15-30 s, then carrying out high-pressure low-temperature reaction under an inert condition, and then extracting and filtering the reaction product by using the solvent to obtain the cut tobacco; the conditions of high pressure and low temperature are 1.0-2.0 MPa, the temperature is 90-140 ℃, and the reaction time is 0.5-5 h; the solvent is one or a mixture of two of glycerol and propylene glycol.
2. The cut tobacco added with functional fragrant raw materials according to claim 1, characterized in that: the conditions of high pressure and low temperature are 1.2-1.80 MPa, the temperature is 100-120 ℃, and the reaction time is 1-3 h.
3. The cut tobacco added with functional fragrant raw materials according to claim 1, characterized in that: the inert condition is nitrogen or inert gas.
4. The cut tobacco added with functional fragrant raw materials according to claim 1, characterized in that: the tobacco shred is one or more of flue-cured tobacco shred, aromatic tobacco shred, sun-cured yellow tobacco shred, burley tobacco shred, middle-flavor tobacco shred, strong-flavor tobacco shred, and fragrant tobacco shred.
5. A heating non-combustion cigarette comprises an electric heating assembly, a cartridge assembly and a smoking assembly, wherein a smoking raw material is arranged in the cartridge assembly, and the heating non-combustion cigarette is characterized in that the smoking raw material adopts the tobacco shreds according to the claims 1-4.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811125729.6A CN110959896A (en) | 2018-09-26 | 2018-09-26 | Tobacco shred added with functional fragrant raw material and heating non-combustible cigarette |
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| CN201811125729.6A CN110959896A (en) | 2018-09-26 | 2018-09-26 | Tobacco shred added with functional fragrant raw material and heating non-combustible cigarette |
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| CN110959896A true CN110959896A (en) | 2020-04-07 |
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| CN201811125729.6A Pending CN110959896A (en) | 2018-09-26 | 2018-09-26 | Tobacco shred added with functional fragrant raw material and heating non-combustible cigarette |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111713732A (en) * | 2020-06-17 | 2020-09-29 | 云南中烟工业有限责任公司 | Solvent-heated tobacco original perfume and preparation method thereof |
| CN111718797A (en) * | 2020-06-17 | 2020-09-29 | 云南中烟工业有限责任公司 | Method for finely extracting tobacco essence |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111713732A (en) * | 2020-06-17 | 2020-09-29 | 云南中烟工业有限责任公司 | Solvent-heated tobacco original perfume and preparation method thereof |
| CN111718797A (en) * | 2020-06-17 | 2020-09-29 | 云南中烟工业有限责任公司 | Method for finely extracting tobacco essence |
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