Tobacco extract and preparation method therefor, aerosol-generating substrate and atomization device
By using tobacco extracts with specific components and preparation methods, the problems of difficulty in releasing flavor substances and carbon buildup in electronic atomization devices have been solved, achieving a strong smoke-like sensation and preventing carbon buildup.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN SMOORE TECH LTD
- Filing Date
- 2025-12-16
- Publication Date
- 2026-07-09
Smart Images
Figure PCTCN2025142757-FTAPPB-I100001 
Figure PCTCN2025142757-FTAPPB-I100002 
Figure PCTCN2025142757-FTAPPB-I100003
Abstract
Description
Tobacco extract and its preparation method, aerosol generation matrix, atomization device
[0001] Cross-references to related applications
[0002] This application claims priority to Chinese Patent Application No. 202411994430X, filed with the Chinese Patent Office on December 30, 2024, entitled "Tobacco Extract and Preparation Method Thereof, Aerosol Generating Matrix, Atomizing Device", the entire contents of which are incorporated herein by reference. Technical Field
[0003] This application relates to the field of tobacco technology, specifically to a tobacco extract and its preparation method, an aerosol generating matrix, and an atomizing device. Background Technology
[0004] Tobacco extract is a core ingredient in electronic atomization devices that enhance tobacco flavor. Currently, the tobacco extracts used in electronic atomization devices are mainly obtained through physical methods such as supercritical extraction and solvent extraction. While conventional tobacco extracts obtained using these methods can add some tobacco aroma to the aerosol-generating matrix, they lack a sensation similar to real cigarettes (smoke-like sensation), failing to meet the needs of traditional smokers. The smoke-like sensation of tobacco mainly comes from the flavor compounds produced by tobacco combustion. However, conventional tobacco extracts obtained using current extraction methods cannot release most of these flavor compounds, resulting in a lack of smoke-like sensation and a tendency to form carbon deposits. Summary of the Invention
[0005] The purpose of this application is to overcome the shortcomings of conventional tobacco extracts obtained by existing extraction methods, which fail to release most of the smoke flavor substances, lack a smoke-like sensation, and are prone to carbon buildup. In this regard, a tobacco extract, its preparation method, aerosol generation matrix, and atomization device are provided.
[0006] To achieve the above objectives, this application adopts the following technical solution:
[0007] This application provides a tobacco extract, the components of which include: solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalothrix trienyl alcohol and nicotine;
[0008] The mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalothrix trienyl alcohol and nicotine is (0.05-0.52):(0.01-0.2):(0.02-0.7):(0.01-0.27):(0.02-0.65):(0.03-0.42):(0.06-0.7):(0.01-0.2):(0.1-3.0):(4.3-15.0).
[0009] Optionally, the components of the tobacco extract, based on the dry matter of the tobacco extract, include: 0.05-0.52 mg / g solanone, 0.01-0.2 mg / g maltol, 0.02-0.7 mg / g furanone, 0.01-0.27 mg / g methylcyclopentenolone, 0.02-0.65 mg / g guaiacol, 0.03-0.42 mg / g 2-acetylpyrrole, 0.06-0.7 mg / g 3-methylvaleric acid, 0.01-0.2 mg / g neophytadiene, 0.1-3.0 mg / g ceftazidimetrienol, and 4.3-15.0 mg / g nicotine.
[0010] In this application, "dry matter" refers to the components of the tobacco extract other than the solvent. The solvent may be an aqueous solution of ethanol, and the dry matter includes: solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalothrix trienyl alcohol, and nicotine.
[0011] Optionally, the phenol content in the tobacco extract is less than 0.05 mg / g, based on the dry matter content of the tobacco extract;
[0012] And / or, based on the dry matter content of the tobacco extract, the mass content of nitrosamine (NNK) in the tobacco extract is less than 5.8 μg / g.
[0013] Optionally, the mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrindiol and nicotine is (0.05-0.5):(0.01-0.1):(0.02-0.4):(0.01-0.1):(0.02-0.5):(0.03-0.35):(0.06-0.6):(0.025-0.2):(0.2-3.0):(5.0-15.0).
[0014] Optionally, the components of the tobacco extract, based on the dry matter of the tobacco extract, include: 0.05-0.5 mg / g solanone, 0.01-0.1 mg / g maltol, 0.02-0.4 mg / g furanone, 0.01-0.1 mg / g methylcyclopentenolone, 0.02-0.5 mg / g guaiacol, 0.03-0.35 mg / g 2-acetylpyrrole, 0.06-0.6 mg / g 3-methylvaleric acid, 0.025-0.2 mg / g neophytadiene, 0.2-3.0 mg / g ceftazidimetrienol, and 5.0-15.0 mg / g nicotine.
[0015] Optionally, the phenol content in the tobacco extract is less than 0.02 mg / g, based on the dry matter content of the tobacco extract;
[0016] And / or, based on the dry matter content of the tobacco extract, the mass content of nitrosamine (NNK) in the tobacco extract is less than 5.0 μg / g.
[0017] This application provides a method for preparing the tobacco extract described above, comprising the following steps: pulverizing the tobacco extract raw material and then extracting it by physical methods, followed by a first concentration to obtain a crude extract; then subjecting the crude extract to pyrolysis treatment, adsorption treatment, and a second concentration to obtain the tobacco extract.
[0018] Optionally, the tobacco extract raw material is pulverized to a mesh size of 20-60.
[0019] Optionally, the pyrolysis treatment temperature is 110-300℃;
[0020] Optionally, the pyrolysis treatment temperature is 110-250℃.
[0021] Optionally, the pyrolysis treatment time is 30-180 min.
[0022] Optionally, the pyrolysis treatment includes at least one of thermal pyrolysis treatment, microwave pyrolysis treatment, light wave pyrolysis treatment, and dry distillation treatment.
[0023] Optionally, the crude extract is mixed with water and subjected to thermal pyrolysis treatment, wherein the mass ratio of the crude extract to water is 1:(0.2-0.5), the thermal pyrolysis temperature is 110-300℃, and the thermal pyrolysis treatment time is 30-180min.
[0024] Optionally, the physical extraction method includes at least one of solvothermal reflux extraction, microwave-assisted extraction, and ultrasonic extraction.
[0025] Optionally, the extraction solvent of the solvothermal reflux extraction method is an aqueous ethanol solution with a mass concentration of 50-90%, the reflux extraction temperature is 70-90℃, the reflux extraction time is 2-6h, the mass ratio of the extraction solvent to the tobacco extract is (8-15):1, and the number of reflux extractions is 1-2.
[0026] Optionally, the adsorption material used in the adsorption treatment includes at least one of zeolite, activated carbon, and diatomaceous earth.
[0027] Optionally, the amount of adsorbent material used in the adsorption treatment is 5-20% of the total mass of the products obtained from the pyrolysis treatment, and the adsorption treatment time is 2-6 hours.
[0028] Optionally, the first concentration temperature is 50-70℃, and the first concentration vacuum degree is 60-200mbar;
[0029] And / or, the second concentration temperature is 50-70°C, and the second concentration vacuum degree is 60-200 mbar.
[0030] Optionally, the physical extraction step may further include a filtering step after the physical extraction step is completed.
[0031] Optionally, the pyrolysis process may be followed by a filtration step.
[0032] Optionally, the adsorption treatment step may be followed by a filtration step after the adsorption treatment step is completed.
[0033] This application provides an aerosol generation matrix, which includes the tobacco extract described above or the tobacco extract prepared by the preparation method described above.
[0034] Optionally, the mass content of tobacco extract in the aerosol generating matrix is 1-50%.
[0035] Optionally, the aerosol generating matrix further includes an atomizing agent;
[0036] Optionally, the atomizing agent accounts for 50%-99% of the total mass of the aerosol generating matrix;
[0037] The atomizing agent is selected from at least one of propylene glycol, glycerol, water, and ethanol.
[0038] Optionally, the aerosol generating matrix may further include added nicotine;
[0039] The added nicotine accounts for 0.5-3% of the total mass of the aerosol-generating matrix.
[0040] Optionally, the aerosol generating matrix further includes organic acids, which account for 0.5-3% of the total mass of the aerosol generating matrix;
[0041] Optionally, the organic acid is selected from at least one of acetic acid, lactic acid, benzoic acid, malic acid, tartaric acid, citric acid, and levulinic acid;
[0042] And / or, the aerosol generating matrix further includes a fragrance, wherein the fragrance accounts for 0.5-3% of the total mass of the aerosol generating matrix.
[0043] Optionally, the atomizing agent is propylene glycol and glycerol;
[0044] The mass ratio of propylene glycol to glycerol is (3-7):(3-7).
[0045] This application provides an atomizing device, which includes the tobacco extract described above, the tobacco extract prepared by the preparation method described above, or the aerosol generating matrix described above.
[0046] Optionally, the atomizing device includes an electronic atomizing device.
[0047] The beneficial effects of this application are:
[0048] The tobacco extract provided in this application comprises the following components: solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrimazole, and nicotine; wherein the mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrimazole, and nicotine is (0.05-0.52):(0.01-0.2):(0.02-0.7):(0.01-0.27):(0.02-0.65):(0.03-0.42):(0.06-0.7):(0.01-0.2):(0.1-3.0):(4.3-15.0). When the tobacco extract provided in this application is heated in an electronic atomization device, most of the flavor substances in the smoke are easily released, resulting in a strong smoke-like sensation and making it less prone to carbon buildup. Detailed Implementation
[0049] The following embodiments are provided to better understand this application and are not limited to the preferred embodiments described herein. They do not constitute a limitation on the content and scope of protection of this application. Any product that is the same as or similar to this application, derived by anyone under the guidance of this application or by combining features of this application with other prior art, falls within the scope of protection of this application.
[0050] For experiments not specifically described in the examples, the procedures or conditions should be followed according to the conventional experimental procedures described in the literature in this field. Reagents or instruments whose manufacturers are not specified are all commercially available conventional reagent products.
[0051] Tobacco extract is a core ingredient in electronic atomization devices that enhance tobacco flavor. Currently, the tobacco extracts used in electronic atomization devices are mainly obtained through physical methods such as supercritical extraction and solvent extraction. While conventional tobacco extracts obtained using these methods can add some tobacco aroma to the aerosol-generating matrix, they lack a tobacco-like sensation and cannot meet the needs of traditional smokers. The tobacco-like sensation mainly comes from the flavor compounds produced by tobacco combustion. However, most of these flavor compounds cannot be released in conventional tobacco extracts obtained using current extraction methods, resulting in a lack of a tobacco-like sensation and making it less likely to form carbon deposits.
[0052] Therefore, this application provides a tobacco extract comprising: solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrimethylenediol, and nicotine; wherein the mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrimethylenediol, and nicotine is (0.05-0.52):(0.01-0.2):(0.02-0.7):(0.01-0.27):(0.02-0.65):(0.03-0.42):(0.06-0.7):(0.01-0.2):(0.1-3.0):(4.3-15.0). When the tobacco extract provided in this application is heated in an electronic atomization device, most of the flavor substances in the smoke are easily released, resulting in a strong smoke-like sensation and minimal carbon buildup.
[0053] In some optional embodiments, the components of the tobacco extract, based on the dry matter content of the tobacco extract, include: 0.05-0.52 mg / g solanone, 0.01-0.2 mg / g maltol, 0.02-0.7 mg / g furanone, 0.01-0.27 mg / g methylcyclopentenolone, 0.02-0.65 mg / g guaiacol, 0.03-0.42 mg / g 2-acetylpyrrole, 0.06-0.7 mg / g 3-methylvaleric acid, 0.01-0.2 mg / g neophytadiene, 0.1-3.0 mg / g ceftazidimetrienol, and 4.3-15.0 mg / g nicotine. When heated in an electronic atomizing device, the tobacco extract provided above readily releases most of the smoke flavor compounds, resulting in a strong smoke-like sensation and is less prone to carbon buildup.
[0054] The term "cipertrienildiol" in this application is CAS: 57605-80-8.
[0055] In some alternative embodiments, the phenol content in the tobacco extract is less than 0.05 mg / g, based on the dry matter content of the tobacco extract;
[0056] In some alternative embodiments, the mass content of nitrosamines in the tobacco extract is less than 5.8 μg / g, based on the dry matter content of the tobacco extract.
[0057] In some optional embodiments, the mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrindiol, and nicotine is (0.05-0.5):(0.01-0.1):(0.02-0.4):(0.01-0.1):(0.02-0.5):(0.03-0.35):(0.06-0.6):(0.025-0.2):(0.2-3.0):(5.0-15.0). When heated in an electronic atomizing device, the tobacco extract provided above not only has the advantages of easily releasing most of the smoke flavor substances, a strong smoke-like sensation, and minimal carbon buildup, but also possesses the advantages of a strong smoky aroma, good overall sensory experience, and good overall harmony.
[0058] In some optional embodiments, the components of the tobacco extract, based on the dry matter content of the tobacco extract, include: 0.05-0.5 mg / g solanone, 0.01-0.1 mg / g maltol, 0.02-0.4 mg / g furanone, 0.01-0.1 mg / g methylcyclopentenolone, 0.02-0.5 mg / g guaiacol, 0.03-0.35 mg / g 2-acetylpyrrole, 0.06-0.6 mg / g 3-methylvaleric acid, 0.025-0.2 mg / g neophytadiene, 0.2-3.0 mg / g ceftazidimetrienol, and 5.0-15.0 mg / g nicotine. When heated in an electronic atomizing device, the tobacco extract provided above not only has the advantages of easily releasing most of the smoke flavor substances, a strong smoke-like sensation, and minimal carbon buildup, but also has the advantages of a strong smoky aroma, good overall sensory experience, and good overall harmony.
[0059] In some optional embodiments, the phenol content in the tobacco extract is less than 0.02 mg / g;
[0060] In some alternative embodiments, the mass content of nitrosamine (NNK) in the tobacco extract is less than 5.0 μg / g.
[0061] This application provides a method for preparing the tobacco extract described above, comprising the following steps: pulverizing the tobacco extract raw material and then extracting it by physical methods, followed by a first concentration to obtain a crude extract; then subjecting the crude extract to pyrolysis treatment, adsorption treatment, and a second concentration to obtain the tobacco extract.
[0062] The tobacco extraction raw materials described in this application are not specifically limited and can include tobacco leaves, tobacco stems, tobacco powder, and tobacco and reconstituted tobacco waste, as well as crude tobacco extract or tobacco puree. The tobacco plant species used as the tobacco extraction raw materials in this application are also not limited, and include, but are not limited to, flue-cured tobacco, burley tobacco, cigar tobacco, and aromatic tobacco. For example, flue-cured tobacco leaves, burley tobacco leaves, cigar tobacco leaves, and aromatic tobacco leaves can be selected.
[0063] In some optional embodiments, the tobacco extract raw material is pulverized to a mesh size of 20-60. In some optional embodiments, the pyrolysis treatment temperature is 110-300℃; optionally, the pyrolysis treatment temperature is 150-250℃. By precisely controlling the pyrolysis treatment temperature to 150-250℃, this application obtains a tobacco extract that, when heated in an electronic atomization device, not only has the advantages of easily releasing most of the smoke flavor substances, a strong smoke-like sensation, and being less prone to carbon buildup, but also has the advantages of a strong smoky aroma, good overall sensory experience, and good overall harmony.
[0064] In some optional embodiments, the pyrolysis treatment time is 30-180 min. Optionally, the pyrolysis treatment includes at least one of thermal pyrolysis, microwave pyrolysis, light-wave pyrolysis, and dry distillation. Further optionally, the pyrolysis treatment includes thermal pyrolysis of the crude extract mixed with water, wherein the mass ratio of the crude extract to water is 1:(0.2-0.5), the thermal pyrolysis temperature is 110-300℃, and the thermal pyrolysis treatment time is 30-180 min.
[0065] In some optional embodiments, the physical extraction method includes at least one of solvothermal reflux extraction, microwave-assisted extraction, and ultrasonic extraction. Optionally, the solvothermal reflux extraction method uses an aqueous ethanol solution with a mass concentration of 50-90%, a reflux extraction temperature of 70-90°C, a reflux extraction time of 2-6 hours, a mass ratio of extraction solvent to tobacco extract material of (8-15):1, and is performed 1-2 times.
[0066] In some optional embodiments, the adsorption material used in the adsorption treatment includes at least one of zeolite, activated carbon, and diatomaceous earth; in some optional embodiments, the amount of adsorption material used in the adsorption treatment is 5-20% of the total mass of the products obtained from the pyrolysis treatment, and the adsorption treatment time is 2-6 hours.
[0067] In some optional embodiments, the first concentration temperature is 50-70°C, and the first concentration vacuum degree is 60-200 mbar; optionally, the concentration is first concentrated to 40-60%.
[0068] In some optional embodiments, the second concentration temperature is 50-70°C, and the second concentration vacuum degree is 60-200 mbar; optionally, the concentration after the second concentration is 50-60%.
[0069] In this application, the concentration in the concentration step refers to the mass percentage of the components other than the solvent in the corresponding mixture, which is detected using an ATAGO concentration meter.
[0070] In some optional implementations, a filtering step is included after the physical extraction step.
[0071] In some optional embodiments, a filtering step is further included after the pyrolysis process is completed.
[0072] In some optional embodiments, a filtration step is further included after the adsorption treatment step.
[0073] The tobacco extract produced by the combined process of this application contains a large number of tobacco aroma and flavor components, laying a solid foundation for a tobacco-like sensation, making the aroma of tobacco products more complete and natural, and better meeting the needs of long-time smokers.
[0074] This application provides an aerosol generation matrix, which includes the tobacco extract described above or the tobacco extract prepared by the preparation method described above.
[0075] In some alternative embodiments, the mass content of tobacco extract in the aerosol generating matrix is 1-50%.
[0076] In some optional embodiments, the aerosol generating matrix further includes an atomizing agent; this application does not specifically limit the type of atomizing agent, and any conventional atomizing agent may be used, including but not limited to at least one of propylene glycol, glycerol, water, and ethanol. Optionally, the atomizing agent is propylene glycol and glycerol; optionally, the mass ratio of propylene glycol to glycerol is (3-7):(3-7). In some optional embodiments, the atomizing agent accounts for 50%-99% of the total mass of the aerosol generating matrix.
[0077] In some optional embodiments, the aerosol generating matrix further includes added nicotine; optionally, the added nicotine accounts for 0.5-3% of the total mass of the aerosol generating matrix.
[0078] In some optional embodiments, the aerosol generating matrix further includes an organic acid, which accounts for 0.5-3% of the total mass of the aerosol generating matrix; optionally, the organic acid is selected from at least one of acetic acid, lactic acid, benzoic acid, malic acid, tartaric acid, citric acid, and levulinic acid.
[0079] In some optional embodiments, the aerosol generating matrix further includes a flavoring agent; this application does not specifically limit the flavoring agent, and the flavoring agent type can be food flavoring or tobacco flavoring, and the flavoring agent source can be purchased externally or made in-house. Optionally, the flavoring agent accounts for 0.5-3% of the total mass of the aerosol generating matrix.
[0080] This application provides an atomizing device, which includes the tobacco extract described above, the tobacco extract prepared by the preparation method described above, or the aerosol generating matrix described above.
[0081] In some alternative implementations, the atomizing device includes an electronic atomizing device.
[0082] The present application will be further described in detail below with reference to specific embodiments, which should not be construed as limiting the scope of protection claimed in the present application.
[0083] Example 1
[0084] This embodiment provides a method for preparing a tobacco extract, including the following steps:
[0085] Burley tobacco leaves were pulverized to 30 mesh and then subjected to hot reflux extraction. The hot reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0086] Example 2
[0087] This embodiment provides a method for preparing a tobacco extract, including the following steps:
[0088] Burley tobacco leaves were pulverized to 30 mesh and then extracted using a solvothermal reflux extraction method. The reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0089] Example 3
[0090] This embodiment provides a method for preparing a tobacco extract, including the following steps:
[0091] Burley tobacco leaves were pulverized to 30 mesh and then extracted using a solvothermal reflux extraction method. The reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0092] Example 4
[0093] This embodiment provides a method for preparing a tobacco extract, including the following steps:
[0094] Burley tobacco leaves were pulverized to 30 mesh and then extracted using a solvothermal reflux extraction method. The reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0095] Example 5
[0096] This embodiment provides an atomizing formulation, which, by mass parts, includes 5 parts of tobacco extract obtained in Example 2, 2 parts of nicotine, 2 parts of lactic acid, 45 parts of propylene glycol, and 45 parts of glycerol.
[0097] Comparative Example 1
[0098] This comparative example provides a method for preparing a tobacco extract, comprising the following steps:
[0099] Burley tobacco leaves were pulverized to 30 mesh and then extracted using a solvothermal reflux extraction method. The reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0100] Comparative Example 2
[0101] This comparative example provides a method for preparing a tobacco extract, comprising the following steps:
[0102] Burley tobacco leaves were pulverized to 30 mesh and then extracted using a solvothermal reflux extraction method. The reflux extraction solvent was a 60% ethanol aqueous solution, with a solvent-to-total ...
[0103] Test Example 1
[0104] Sample pretreatment method: Take 1 mL of the sample obtained from Examples 1-4 and Comparative Examples 1-2 and mix it with dichloromethane at a volume ratio of 1:10 for extraction. Concentrate the extract to recover dichloromethane and obtain a concentrate. Add 1 mL of anhydrous ethanol to the concentrate to dissolve it. After filtering through a 0.45 μm filter membrane, the pretreated sample is ready for use.
[0105] Detection method: The pretreated samples were sent to the detection equipment, GC-MS (6590-7890), for analysis. The injection port temperature was 250℃, the initial temperature was 40℃, and the temperature was held for 2 min; the temperature was increased to 150℃ at 3℃ / min and held for 5 min; the temperature was increased to 300℃ at 5℃ / min and held for 5 min; finally, the temperature was increased to 320℃ at 10℃ / min and held for 10 min. The content of each flavor component in the tobacco extract dry matter corresponding to the tobacco extract samples obtained in Examples 1-4 and Comparative Examples 1-2 was calculated by peak area integral. The results of the content of each flavor component in the tobacco extract dry matter are shown in Table 1 and Table 1 continued.
[0106] Table 1
[0107] Table 1 (continued)
[0108] Test Example 2
[0109] The tobacco extracts obtained in Examples 1-4 and Comparative Examples 1-2 were mixed with propylene glycol and glycerol, respectively, to form atomized formulations, wherein the tobacco extract accounted for 5% of the total mass of the atomized formulation, propylene glycol accounted for 47.5% of the total mass of the atomized formulation, and glycerol accounted for 47.5% of the total mass of the atomized formulation.
[0110] The above-mentioned atomizing formulation and the atomizing formulation obtained in Example 5 were packaged into the same type of e-cigarette cartridges (RELX 5th generation cartridges - RELX Phantom cartridges). Ten expert evaluators conducted blind sensory evaluations using the same type of e-cigarette device (RELX 5th generation - RELX Phantom device). The vaping operation standard followed general sensory evaluation standards (3 seconds of vaping per sample, with an evaluation interval of more than 10 minutes between samples). Positive scoring was used, with higher scores for better performance, ranging from 1 to 10 points. The scoring dimensions focused on the aroma, smoke-like sensation, and overall harmony. The scoring criteria are shown in Table 2. The average scores were statistically analyzed, and the specific results are shown in Table 3.
[0111] Two mL each of the above-mentioned atomizing formulation and the atomizing formulation obtained in Example 5 were placed in the same type of cartridge (RELX 5th generation cartridge). After 200 puffs using a vaping machine at the same power, the average smoke volume of the 200 puffs and the smoke volume reduction rate between puffs 151-200 and puffs 1-50 were calculated. The carbon buildup on the ceramic membrane was also measured after disassembling the cartridge. The vaping conditions were 3 seconds of vaping followed by 27 seconds of rest, with each vaping volume being 55 mL. The atomization performance test results are shown in Table 4.
[0112] Table 2
[0113] Table 3
[0114] Table 4
[0115] According to the sensory results in Tables 3 and 4, the atomized formulations prepared from the tobacco extracts in the comparative examples have a mixed aroma, poor smoke-like sensation, and high carbon buildup. The atomized formulations prepared from the tobacco extracts obtained through the combined processing method of this application show improved smoke-like sensation and reduced carbon buildup; among them, the atomized formulations formed in Examples 1-3 and Example 5 have significantly stronger tobacco aroma and overall harmony than the atomized formulation formed in Example 4.
[0116] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A tobacco extract, characterized in that, The components of the tobacco extract include: solanone, maltol, furanone, methylcyclopentenolone, guaiacene, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrindiol and nicotine; The mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalothrix trienyl alcohol and nicotine is (0.05-0.52):(0.01-0.2):(0.02-0.7):(0.01-0.27):(0.02-0.65):(0.03-0.42):(0.06-0.7):(0.01-0.2):(0.1-3.0):(4.3-15.0).
2. The tobacco extract according to claim 1, characterized in that, The components of the tobacco extract, based on the dry matter content of the tobacco extract, include: 0.05-0.52 mg / g solanone, 0.01-0.2 mg / g maltol, 0.02-0.7 mg / g furanone, 0.01-0.27 mg / g methylcyclopentenolone, 0.02-0.65 mg / g guaiacol, 0.03-0.42 mg / g 2-acetylpyrrole, 0.06-0.7 mg / g 3-methylvaleric acid, 0.01-0.2 mg / g neophytadiene, 0.1-3.0 mg / g ceftazidimetrienol, and 4.3-15.0 mg / g nicotine.
3. The tobacco extract according to claim 1, characterized in that, The mass ratio of solanone, maltol, furanone, methylcyclopentenolone, guaiacol, 2-acetylpyrrole, 3-methylvaleric acid, neophytadiene, cephalotrindiol and nicotine is (0.05-0.5):(0.01-0.1):(0.02-0.4):(0.01-0.1):(0.02-0.5):(0.03-0.35):(0.06-0.6):(0.025-0.2):(0.2-3.0):(5.0-15.0).
4. The tobacco extract according to claim 3, characterized in that, The components of the tobacco extract, based on the dry matter content of the tobacco extract, include: 0.05-0.5 mg / g solanone, 0.01-0.1 mg / g maltol, 0.02-0.4 mg / g furanone, 0.01-0.1 mg / g methylcyclopentenolone, 0.02-0.5 mg / g guaiacol, 0.03-0.35 mg / g 2-acetylpyrrole, 0.06-0.6 mg / g 3-methylvaleric acid, 0.025-0.2 mg / g neophytadiene, 0.2-3.0 mg / g ceftazidimetrienol, and 5.0-15.0 mg / g nicotine.
5. The tobacco extract according to claim 3 or 4, characterized in that, The phenol content in the tobacco extract is less than 0.02 mg / g, calculated based on the dry matter content of the tobacco extract. And / or, based on the dry matter content of the tobacco extract, the mass content of nitrosamines in the tobacco extract is less than 5.0 μg / g.
6. A method for preparing the tobacco extract according to any one of claims 1-5, characterized in that, Includes the following steps: The tobacco extract raw material is crushed and then extracted by physical methods and concentrated in the first stage to obtain a crude extract; then the crude extract is subjected to pyrolysis treatment, adsorption treatment and concentrated in the second stage to obtain the tobacco extract.
7. The method for preparing the tobacco extract according to claim 6, characterized in that, The pyrolysis treatment temperature is 110-300℃; Preferably, the pyrolysis treatment temperature is 110-250℃.
8. The method for preparing the tobacco extract according to claim 6 or 7, characterized in that, The pyrolysis treatment time is 30-180 min.
9. The method for preparing the tobacco extract according to any one of claims 6-8, characterized in that, The pyrolysis treatment includes at least one of thermal pyrolysis treatment, microwave pyrolysis treatment, light wave pyrolysis treatment, and dry distillation treatment.
10. The method for preparing the tobacco extract according to any one of claims 6-9, characterized in that, The crude extract is mixed with water and subjected to thermal pyrolysis treatment. The mass ratio of the crude extract to water is 1:(0.2-0.5), the thermal pyrolysis temperature is 110-300℃, and the thermal pyrolysis treatment time is 30-180min.
11. The method for preparing the tobacco extract according to any one of claims 6-10, characterized in that, The physical extraction method includes at least one of solvothermal reflux extraction, microwave-assisted extraction, and ultrasonic extraction.
12. The method for preparing the tobacco extract according to any one of claims 11, characterized in that, The solvent for the solvothermal reflux extraction method is an aqueous ethanol solution with a mass concentration of 50-90%, the reflux extraction temperature is 70-90℃, the reflux extraction time is 2-6h, the mass ratio of the extraction solvent to the tobacco extract is (8-15):1, and the number of reflux extractions is 1-2.
13. The method for preparing the tobacco extract according to any one of claims 6-12, characterized in that, The adsorption material used in the adsorption treatment includes at least one of zeolite, activated carbon, and diatomaceous earth.
14. The method for preparing the tobacco extract according to any one of claims 6-13, characterized in that, The amount of adsorbent material used in the adsorption treatment is 5-20% of the total mass of the products obtained from the pyrolysis treatment, and the adsorption treatment time is 2-6 hours.
15. The method for preparing the tobacco extract according to any one of claims 6-14, characterized in that, The first concentration temperature is 50-70℃, and the first concentration vacuum degree is 60-200mbar; And / or, the second concentration temperature is 50-70°C, and the second concentration vacuum degree is 60-200 mbar.
16. An aerosol generation matrix, characterized in that, The aerosol generating matrix includes the tobacco extract according to any one of claims 1-5 or the tobacco extract prepared by the preparation method according to any one of claims 6-15.
17. The aerosol generation matrix according to claim 16, characterized in that, The mass content of tobacco extract in the aerosol generating matrix is 1-50%.
18. The aerosol-generating matrix according to claim 16 or 17, characterized in that, The aerosol generating matrix also includes an atomizing agent; Optionally, the atomizing agent accounts for 50%-99% of the total mass of the aerosol generating matrix; The atomizing agent is selected from at least one of propylene glycol, glycerol, water, and ethanol.
19. The aerosol generating matrix according to any one of claims 16-18, characterized in that, The aerosol generating matrix also includes added nicotine; The added nicotine accounts for 0.5-3% of the total mass of the aerosol-generating matrix.
20. The aerosol generating matrix according to any one of claims 16-19, characterized in that, The aerosol generating matrix also includes organic acids, which account for 0.5-3% of the total mass of the aerosol generating matrix; Optionally, the organic acid is selected from at least one of acetic acid, lactic acid, benzoic acid, malic acid, tartaric acid, citric acid, and levulinic acid.
21. The aerosol generating matrix according to any one of claims 18-20, characterized in that, The atomizing agent is propylene glycol and glycerol; The mass ratio of propylene glycol to glycerol is (3-7):(3-7).
22. An atomizing device, characterized in that, The atomizing device includes the tobacco extract according to any one of claims 1-5, or the tobacco extract prepared by the preparation method according to any one of claims 6-15, or the aerosol generating matrix according to any one of claims 16-21.