A tobacco extract of oriental tobacco and a method of preparing and using the same

Abstract

This invention relates to the field of tobacco technology, specifically to a flavored tobacco extract, its preparation method, and its application. The flavored tobacco extract provided by this invention comprises: ceftazidimetrienol, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde; the mass ratio of ceftazidimetrienol, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde in the flavored tobacco extract is (1.5-3.3):(0.1-0.25):(3.5-15):(0.0015-0.01):(0.01-0.1):(0.05-0.5):(0.005-0.02):(0.05-0.4). The aromatic tobacco extract provided by this invention has high safety, while the extract has a distinct aroma, good overall harmony, and a good overall sensory experience.

Description

Technical Field

[0001] This invention relates to the field of tobacco technology, specifically to a flavored tobacco extract, its preparation method, and its application. Background Technology

[0002] Tobacco extracts are a core component of electronic atomization devices that enhance tobacco flavor. Currently, the aromatic tobacco extracts used in electronic atomization devices are mainly obtained through physical methods such as solvent extraction. However, these methods struggle to effectively extract the characteristic aromas of aromatic tobacco from a technical standpoint. To effectively extract these characteristic aromas, the current main approach is to add a small amount of sulfuric acid as an extraction solvent to promote the reaction of the active ingredients in the extract into aroma components, thereby improving the quality of the aromatic tobacco smoke. However, existing aromatic tobacco extracts often result in mixed aromas, poor overall harmony, and a subpar sensory experience. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of existing aromatic tobacco extracts, such as mixed aromas, poor overall coordination, and poor overall sensory experience, and to provide an aromatic tobacco extract, its preparation method, and its application.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This invention provides a flavored tobacco extract, the components of which include: cephalotrimole, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid and succinyl lactone;

[0006] The mass ratio of cephalotrindiol, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid and sage lactone in the aromatic tobacco extract is (1.5-3.3):(0.1-0.25):(3.5-15):(0.0015-0.01):(0.01-0.1):(0.05-0.5):(0.005-0.02):(0.05-0.4).

[0007] Preferably, the components of the aromatic tobacco extract, based on the dry matter mass of the aromatic tobacco extract, include: 1.5-3.3 mg / g ceftazidimetrienol, 0.1-0.25 mg / g megastigmatrienone, 3.5-15 mg / g nicotine, 0.0015-0.01 mg / g β-ionone, 0.01-0.1 mg / g 4-hydroxy-β-dihydrodamascone, 0.05-0.5 mg / g isovaleric acid, 0.005-0.020 mg / g 2-methylbutyric acid, and 0.05-0.4 mg / g sage lactone.

[0008] In this invention, dry matter refers to the components of the tobacco extract other than the solvent. The solvent may be an aqueous ethanol solution, and the dry matter includes: cepertrienildiol, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and sage lactone.

[0009] This invention provides a method for preparing the above-mentioned aromatic tobacco extract, comprising the following steps: pulverizing the aromatic tobacco extract raw material, extracting and concentrating it to obtain a crude extract; then treating the crude extract with an ion exchange resin for 1-16 hours to obtain the aromatic tobacco extract.

[0010] The ion exchange resin is a hydrogen-form cation exchange resin.

[0011] Preferably, the mass ratio of ion exchange resin to crude extract in the ion exchange resin treatment is (0.2-2):1, and the ion exchange resin treatment time is 1-12 hours.

[0012] Preferably, the pulverization mesh size is 10-60 mesh.

[0013] Preferably, the extraction step includes heating and extracting the raw material by mixing an aqueous ethanol solution with the pulverized aromatic tobacco extract.

[0014] Preferably, the ethanol aqueous solution has a mass concentration of 60-90%, the mass ratio of the ethanol aqueous solution to the pulverized aromatic tobacco extract is (6-10):1, the heating treatment temperature is 70-90℃, and the heating treatment time is 1-3h.

[0015] And / or, the number of extractions is 1-3 times.

[0016] Preferably, the concentration temperature is 40-80℃ and the concentration vacuum degree is 65-150mbar.

[0017] Preferably, the concentration of the crude extract is 40-60%.

[0018] In this invention, the crude extract concentration refers to the mass percentage of the components other than the solvent in the corresponding mixture.

[0019] Preferably, the extraction step is followed by a filtering step;

[0020] And / or, the ion exchange resin treatment step may further include a filtration step after the ion exchange resin treatment step is completed.

[0021] This invention provides an aerosol generation matrix, which includes the aromatic tobacco extract described above or the aromatic tobacco extract prepared by the preparation method described above;

[0022] Preferably, the mass content of the aromatic tobacco extract in the aerosol generating matrix is ​​1%-20%.

[0023] Preferably, the aerosol generating matrix further includes an atomizing agent;

[0024] The atomizing agent is selected from at least one of propylene glycol, glycerol, water, and ethanol;

[0025] Optionally, the atomizing agent accounts for 70%-99% of the total mass of the aerosol generating matrix.

[0026] Preferably, the atomizing agent is propylene glycol and glycerol;

[0027] The mass ratio of propylene glycol to glycerol is (3-7):(3-7).

[0028] The present invention provides an atomizing device, wherein the atomizing device comprises the aromatic tobacco extract described above, or the aromatic tobacco extract prepared by the preparation method described above, or the aerosol generating matrix described above.

[0029] Preferably, the atomizing device includes an electronic atomizing device.

[0030] The beneficial effects of this invention are:

[0031] The aromatic tobacco extract provided by this invention comprises: cephalotrimole, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde. The mass ratio of cephalotrimole, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde in the aromatic tobacco extract is (1.5-3.3):(0.1-0.25):(3.5-15):(0.0015-0.01):(0.01-0.1):(0.05-0.5):(0.005-0.02):(0.05-0.4). The aromatic tobacco extract provided by this invention exhibits high safety in aromatic tobacco products, along with a distinct aroma, good overall harmony, and a superior sensory experience.

[0032] The aromatic tobacco extract provided by this invention has extremely significant aroma characteristics, exhibits excellent performance in terms of aroma intensity, and emits a mellow and strong fragrance. Detailed Implementation

[0033] The following embodiments are provided to better understand the present invention and are not limited to the preferred embodiments described. They do not constitute a limitation on the content and scope of protection of the present invention. Any product that is the same as or similar to the present invention, derived by any person under the guidance of the present invention or by combining the features of the present invention with other prior art, falls within the protection scope of the present invention.

[0034] 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.

[0035] Tobacco extracts are a core component of electronic atomization devices that enhance tobacco flavor. Currently, the aromatic tobacco extracts used in electronic atomization devices are mainly obtained through physical methods such as solvent extraction. However, these methods struggle to effectively extract the characteristic aromas of aromatic tobacco from a technical standpoint. To effectively extract these characteristic aromas, the current main approach is to add a small amount of sulfuric acid as an extraction solvent to promote the reaction of the active ingredients in the extract into aroma components, thereby improving the quality of the aromatic tobacco smoke. However, this method suffers from low safety due to the introduction of acidic reagents such as sulfuric acid, and the resulting extract has a mixed aroma, poor overall harmony, and a subpar sensory experience.

[0036] This invention provides a flavored tobacco extract, comprising: cephalotrimole, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde. The mass ratio of cephalotrimole, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid, and perillaldehyde in the flavored tobacco extract is (1.5-3.3):(0.1-0.25):(3.5-15):(0.0015-0.01):(0.01-0.1):(0.05-0.5):(0.005-0.02):(0.05-0.4). The flavored tobacco extract provided by this invention exhibits high safety in flavored tobacco products, along with a distinct aroma, good overall harmony, and a superior sensory experience.

[0037] This invention provides β-ionone (CAS: 14901-07-6), which contributes floral, woody, and waxy aromas; 4-hydroxy-β-dihydrodamascone (CAS: 102488-09-5), which contributes floral, fruity, and honey-sweet aromas; isovaleric acid (CAS: 503-74-2), which contributes the characteristic sour aroma of aromatic tobacco; 2-methylbutyric acid (CAS: 116-53-0), which contributes the characteristic sour aroma of aromatic tobacco; and perillaldehyde (CAS: 564-20-5), which contributes the characteristic resinous aroma of aromatic tobacco. The aromatic tobacco extract provided by this invention exhibits high safety in aromatic tobacco products, while also possessing a distinct aroma and good overall harmony. This invention contains cephalotrindiol (CAS: 57605-80-8), which imparts a tobacco hay aroma; nicotine, which primarily provides a satisfying kick; and megastigmatrienone (CAS: 38818-55-2), which imparts a tobacco hay aroma.

[0038] In some optional embodiments, the components of the aromatic tobacco extract, based on the dry matter mass of the aromatic tobacco extract, include: 1.5-3.3 mg / g ceftazidimetrienol, 0.1-0.25 mg / g megastigmatrienone, 3.5-15 mg / g nicotine, 0.0015-0.01 mg / g β-ionone, 0.01-0.1 mg / g 4-hydroxy-β-dihydrodamascone, 0.05-0.5 mg / g isovaleric acid, 0.005-0.020 mg / g 2-methylbutyric acid, and 0.05-0.4 mg / g sage lactone.

[0039] This invention provides a method for preparing the above-mentioned aromatic tobacco extract, comprising the following steps: pulverizing the aromatic tobacco extract raw material, extracting and concentrating it to obtain a crude extract; then treating the crude extract with an ion exchange resin for 1-16 hours to obtain the aromatic tobacco extract; wherein the ion exchange resin is a hydrogen-form cation exchange resin.

[0040] This invention employs an ion exchange method, exchanging cations in the extract with hydrogen ions from the resin, thereby increasing the hydrogen ion concentration in the extract and providing an acidic environment. This method effectively enhances the characteristic aroma of aromatic tobacco and avoids the introduction of acidic reagents such as sulfuric acid / hydrochloric acid, improving safety. Simultaneously, the chemical components of aromatic tobacco are more readily converted into aroma components due to the influence of hydrogen ion concentration. For example, changes in the activity of enzymes related to carotenoid degradation in an acidic environment promote the degradation of carotenoids towards the formation of ionones and damascones. Under acidic conditions, some esters in the aromatic tobacco extract undergo hydrolysis to generate volatile acids. These acids, at low concentrations, are important components of the aroma of aromatic tobacco, contributing a refreshing sensation.

[0041] In some optional embodiments, the mass ratio of ion exchange resin to crude extract in the ion exchange resin treatment is (0.2-2):1, and the ion exchange resin treatment time is 1-12 hours.

[0042] In some optional implementations, the particle size is 10-60 mesh. For example, the particle size can be selected as 10 mesh, 120 mesh, 30 mesh, 40 mesh, 50 mesh, or 60 mesh.

[0043] In some optional embodiments, the extraction step includes heating and extracting the raw material by mixing an aqueous ethanol solution with the pulverized aromatic tobacco extract. Preferably, the aqueous ethanol solution has a mass concentration of 60-90%, the mass ratio of the aqueous ethanol solution to the pulverized aromatic tobacco extract is (6-10):1, the heating temperature is 70-90°C, and the heating time is 1-3 hours; optionally, the extraction is performed 1-3 times.

[0044] In some optional implementations, the concentration temperature is 40-80°C and the concentration vacuum is 65-150 mbar.

[0045] In some optional embodiments, the concentration of the crude extract is 40-60%.

[0046] The method for testing the concentration of the extract in this invention is to use an ATAGO handheld concentration meter.

[0047] In some optional implementations, a filtering step is also included after the extraction step;

[0048] In some optional implementations, a filtration step is included after the ion exchange resin treatment step.

[0049] Optionally, the filter can be 100-600 mesh. This invention does not specifically limit the filtering tool; anything that achieves the purpose of filtration is acceptable. For example, typically, absorbent cotton can be used for filtration without limitation.

[0050] This invention provides an aerosol generation matrix, which includes the aromatic tobacco extract described above or the aromatic tobacco extract prepared by the preparation method described above;

[0051] The aerosol generation matrix can be the liquid for electronic atomization devices. The aromatic tobacco extract provided by this invention can be added to the liquid for electronic atomization devices to enhance the characteristic aroma of aromatic tobacco.

[0052] In some optional embodiments, the mass content of the aromatic tobacco extract in the aerosol generating matrix is ​​1%-20%.

[0053] In some optional embodiments, the aerosol generating matrix further includes an atomizing agent; the present invention does not specifically limit the atomizing agent, and uses commercially available atomizing agents conventional in the art, such as, but not limited to, at least one of propylene glycol, glycerol, water, and ethanol. Optionally, the atomizing agent accounts for 70%-99% of the total mass of the aerosol generating matrix. Optionally, the atomizing agent is propylene glycol and glycerol; the mass ratio of propylene glycol to glycerol is (3-7):(3-7).

[0054] In some alternative implementations, other functional components can be added to the aerosol generating matrix to obtain different functions, such as cooling agents, flavorings, etc.

[0055] The present invention provides an atomizing device, wherein the atomizing device comprises the aromatic tobacco extract described above, or the aromatic tobacco extract prepared by the preparation method described above, or the aerosol generating matrix described above.

[0056] In some alternative implementations, the atomizing device includes an electronic atomizing device.

[0057] The present invention will be further described in detail below with reference to specific embodiments, which should not be construed as limiting the scope of protection claimed by the present invention.

[0058] Example 1

[0059] This embodiment provides a method for preparing a flavored tobacco extract, including the following steps:

[0060] The aromatic tobacco leaves were pulverized to 30 mesh, and then extracted with an 80% ethanol aqueous solution at a mass ratio of 8:1 (ethanol aqueous solution to aromatic tobacco leaves). The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After extraction, the mixture was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain a crude extract with a concentration of 50%. The crude extract was then treated with a hydrogen cation exchange resin at a mass ratio of 1:1 (hydrogen cation exchange resin to crude extract) for 1 hour, followed by filtration through degreased cotton (filter mesh size of 200 mesh) to obtain the aromatic tobacco extract.

[0061] Example 2

[0062] This embodiment provides a method for preparing a flavored tobacco extract, including the following steps:

[0063] The aromatic tobacco leaves were pulverized to 30 mesh, and then an 80% ethanol aqueous solution was used. The mass ratio of the ethanol aqueous solution to the aromatic tobacco leaves was 8:1. The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After extraction, the mixture was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain a crude extract with a concentration of 50%. The crude extract was then treated with a hydrogen cation exchange resin at a mass ratio of 1:1 to the crude extract for 6 hours, and then filtered through degreased cotton (mesh size of 200 mesh) to obtain the aromatic tobacco extract.

[0064] Example 3

[0065] This embodiment provides a method for preparing a flavored tobacco extract, including the following steps:

[0066] The aromatic tobacco leaves were pulverized to 30 mesh, and then extracted with an 80% ethanol aqueous solution at a mass ratio of 8:1 (ethanol aqueous solution to aromatic tobacco leaves). The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After extraction, the mixture was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain a crude extract with a concentration of 50%. The crude extract was then treated with a hydrogen cation exchange resin at a mass ratio of 1:1 (hydrogen cation exchange resin to crude extract) for 12 hours, followed by filtration through degreased cotton (filter mesh size of 200 mesh) to obtain the aromatic tobacco extract.

[0067] Comparative Example 1

[0068] This comparative example provides a method for preparing a flavored tobacco extract, comprising the following steps:

[0069] The aromatic tobacco leaves were pulverized to 30 mesh, and then an 80% ethanol aqueous solution was used. The mass ratio of the ethanol aqueous solution to the aromatic tobacco leaves was 8:1. The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After extraction, the mixture was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain the aromatic tobacco extract with a concentration of 50%.

[0070] Comparative Example 2

[0071] This comparative example provides a method for preparing a flavored tobacco extract, comprising the following steps:

[0072] The aromatic tobacco leaves were pulverized to 30 mesh, and then an 80% ethanol aqueous solution was used. The mass ratio of the ethanol aqueous solution to the aromatic tobacco leaves was 8:1. The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After the extraction, 1 mol / L sulfuric acid aqueous solution was added until the pH of the extract was 3, and acidification was continued for 90 minutes. Then, the extract was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain the aromatic tobacco extract with a concentration of 50%.

[0073] Comparative Example 3

[0074] This comparative example provides a method for preparing a flavored tobacco extract, comprising the following steps:

[0075] The aromatic tobacco leaves were pulverized to 30 mesh, and then extracted with an 80% ethanol aqueous solution at a mass ratio of 8:1 (ethanol aqueous solution to aromatic tobacco leaves). The extraction temperature was 81℃, the extraction time was 2 hours, and the extraction was performed twice. After extraction, the mixture was filtered to a mesh size of 200 mesh, and then concentrated at 60℃ and 100 mbar to obtain a crude extract with a concentration of 50%. The crude extract was then treated with a hydrogen cation exchange resin at a mass ratio of 1:1 (hydrogen cation exchange resin to crude extract) for 24 hours, and then filtered through degreased cotton (mesh size of 200 mesh) to obtain the aromatic tobacco extract.

[0076] Test Example 1

[0077] Sample pretreatment method: Take 1 mL of the aromatic tobacco extract samples obtained in Examples 1-3 and Comparative Examples 1-3 respectively and mix them 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 dissolve the concentrate and filter it through a 0.45 μm filter membrane to obtain the pretreated sample for use.

[0078] 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 component in the dry matter of the aromatic tobacco extracts obtained in Examples 1-3 and Comparative Examples 1-3 was calculated by peak area integral. The detection results of the content of each component in the dry matter of the aromatic tobacco extracts are shown in Table 1.

[0079] Table 1

[0080]

[0081] Test Example 2

[0082] The aromatic tobacco extracts of Examples 1-3 and Comparative Examples 1-3 were mixed with propylene glycol and glycerol to form an atomized formulation, wherein the aromatic 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.

[0083] The aforementioned atomizing formulations were packaged into identical e-cigarette cartridges (RELX 5th Generation Phantom cartridges). Ten expert evaluators conducted blind sensory evaluations using identical e-cigarette devices (RELX 5th Generation Phantom devices). The vaping procedure was as follows: each sample was vaped for 3 seconds, with an interval of at least 10 minutes between evaluations. The scoring criteria, based on Table 2, emphasized the characteristic aroma, harmony, and overall sensory aspects of the flavored tobacco, employing a positive scoring principle: higher scores indicate better performance, with a range of 1-10 points. The average scores were statistically analyzed, and the specific results are shown in Table 3.

[0084] The above-mentioned atomizing agent was mixed with water at a mass ratio of 1:7, and its pH value was tested using a pH meter. The test results are shown in Table 3.

[0085] Table 2

[0086] ＜4 4-7 ＞7 Characteristic aroma of spice smoke The characteristic aroma of aromatic tobacco is weak. The characteristic aroma of aromatic smoke is generally... The characteristic aroma of spiced smoke is distinct. Coordination Poor coordination Average coordination Good coordination Integrated sensory experience Poor overall sensory experience Overall sensory experience was average. Good overall sensory experience

[0087] Table 3

[0088]

[0089] According to Tables 1 and 3, the preparation process of Comparative Example 1 was carried out in an acidic environment, and the main aroma substances could not be effectively activated. Although Comparative Examples 2 and 3 had higher contents of characteristic aroma components in the aromatic smoke, their harmony and overall sensory experience were not as good as those of the examples. The harmony of Comparative Example 2 was poor after adding acid, which affected the overall sensory experience. The excessively long resin treatment time in Comparative Example 3 also led to poor harmony and affected the overall sensory experience.

[0090] 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 flavored tobacco extract, characterized in that, The components of the aromatic tobacco extract include: cepertrienil, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid and sage lactone. The mass ratio of cephalotrindiol, megastigmatrienone, nicotine, β-ionone, 4-hydroxy-β-dihydrodamascone, isovaleric acid, 2-methylbutyric acid and sage lactone in the aromatic tobacco extract is (1.5-3.3):(0.1-0.25):(3.5-15):(0.0015-0.01):(0.01-0.1):(0.05-0.5):(0.005-0.02):(0.05-0.4).

2. The aromatic tobacco extract according to claim 1, characterized in that, The components of the aromatic tobacco extract, based on the dry matter mass of the aromatic tobacco extract, include: 1.5-3.3 mg / g ceftazidimetrienol, 0.1-0.25 mg / g megastigmatrienone, 3.5-15 mg / g nicotine, 0.0015-0.01 mg / g β-ionone, 0.01-0.1 mg / g 4-hydroxy-β-dihydrodamascone, 0.05-0.5 mg / g isovaleric acid, 0.005-0.020 mg / g 2-methylbutyric acid, and 0.05-0.4 mg / g sage lactone.

3. A method for preparing the aromatic tobacco extract according to claim 1 or 2, characterized in that, Includes the following steps: The aromatic tobacco extract raw material is pulverized, extracted, and concentrated to obtain a crude extract; then the crude extract is treated with an ion exchange resin for 1-16 hours to obtain the aromatic tobacco extract. The ion exchange resin is a hydrogen-form cation exchange resin.

4. The method for preparing the aromatic tobacco extract according to claim 3, characterized in that, In the ion exchange resin treatment, the mass ratio of ion exchange resin to crude extract is (0.2-2):1, and the ion exchange resin treatment time is 1-12 hours.

5. The method for preparing the aromatic tobacco extract according to claim 3 or 4, characterized in that, The pulverization mesh size is 10-60 mesh.

6. The method for preparing the aromatic tobacco extract according to any one of claims 3-5, characterized in that, The extraction step includes heating and extracting the raw material by mixing an aqueous ethanol solution with pulverized aromatic tobacco extract.

7. The method for preparing the aromatic tobacco extract according to claim 6, characterized in that, The ethanol aqueous solution has a mass concentration of 60-90%, the mass ratio of the ethanol aqueous solution to the pulverized aromatic tobacco extract raw material is (6-10):1, the heating treatment temperature is 70-90℃, and the heating treatment time is 1-3h. And / or, the number of extractions is 1-3 times.

8. The method for preparing the aromatic tobacco extract according to any one of claims 3-7, characterized in that, The concentration temperature is 40-80℃, and the concentration vacuum degree is 65-150mbar.

9. The method for preparing the aromatic tobacco extract according to any one of claims 3-8, characterized in that, The concentration of the crude extract is 40-60%.

10. The method for preparing the aromatic tobacco extract according to any one of claims 3-9, characterized in that, The extraction step is followed by a filtering step; And / or, the ion exchange resin treatment step may further include a filtration step after the ion exchange resin treatment step is completed.

11. An aerosol generation matrix, characterized in that, The aerosol generating matrix includes the aromatic tobacco extract as described in claim 1 or 2, or the aromatic tobacco extract prepared by the preparation method described in any one of claims 3-10.

12. The aerosol generation matrix according to claim 11, characterized in that, The mass content of aromatic tobacco extract in the aerosol generating matrix is ​​1%-20%.

13. The aerosol generating matrix according to claim 11 or 12, characterized in that, The aerosol generating matrix also includes an atomizing agent; The atomizing agent is selected from at least one of propylene glycol, glycerol, water, and ethanol; Optionally, the atomizing agent accounts for 70%-99% of the total mass of the aerosol generating matrix.

14. The aerosol generating matrix according to any one of claims 13, characterized in that, The atomizing agent is propylene glycol and glycerol; The mass ratio of propylene glycol to glycerol is (3-7):(3-7).

15. An atomizing device, characterized in that, The atomizing device includes the aromatic tobacco extract as described in claim 1 or 2, or the aromatic tobacco extract prepared by the preparation method described in any one of claims 3-10, or the aerosol generating matrix as described in any one of claims 11-14.

16. The atomizing device according to claim 15, characterized in that, The atomizing device includes an electronic atomizing device.

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